| 00:23.13 | Notify | 03BRL-CAD:starseeker * 63361 (brlcad/branches/qtged/src/qbrlcad/cadtreeview.cxx brlcad/branches/qtged/src/qbrlcad/cadtreeview.h): Using hints from http://stackoverflow.com/questions/14255224/changing-the-row-background-color-of-a-qtreeview-does-not-work, get the highlight bars to go all the way across the QTreeView row. |
| 00:27.21 | Notify | 03BRL-CAD:starseeker * 63362 brlcad/branches/qtged/src/qbrlcad/cadtreemodel.cxx: If we've got the selected entity, maintain the highlighting when closing the branch |
| 00:49.44 | Notify | 03BRL-CAD:starseeker * 63363 (brlcad/branches/qtged/src/qbrlcad/cadtreeview.cxx brlcad/branches/qtged/src/qbrlcad/cadtreeview.h brlcad/branches/qtged/src/qbrlcad/main_window.cxx): Very beginnings of context menu for treeview items |
| 01:22.30 | *** join/#brlcad yiyus (1242712427@je.je.je) |
| 02:20.02 | *** join/#brlcad kintel (~kintel@unaffiliated/kintel) |
| 02:36.13 | brlcad | clock: that sounds like a terrible way, but would work |
| 02:36.52 | brlcad | clock: find . - |
| 02:36.56 | brlcad | clock: find . \( -name \*.cpp -o -name \*.cxx -o -name \*.c -o -name \*.h \) -not -regex '.*other.*' -not -regex '.*misc.*' -not -regex '.*build.*' | xargs du -k | awk '{sum += $1}END{print sum}' |
| 02:37.20 | brlcad | there's a quick n' dirty tally whipped up on the fly |
| 02:37.26 | clock | wow |
| 02:37.32 | clock | with a bonus tally! |
| 02:37.59 | clock | brlcad, so I see other misc and build shouldn't occur in the path |
| 02:38.09 | clock | and there are cpp and cxx too |
| 02:38.21 | clock | brlcad, is BRL-CAD more in C or more in C++? |
| 02:38.30 | brlcad | looks like we don't have any cxx any more, so you could leave that part out |
| 02:38.52 | brlcad | well, compare the .c with the .cpp and find out |
| 02:39.38 | brlcad | starseeker: yeah, either check for nulls or prevent the functions from returning nulls |
| 02:40.39 | brlcad | starseeker: prior could couldn't possibly ever be null because it was accessing a struct field ... now it's getting passed a pointer and that pointer is being dereferenced (looks like in just 10 or so places) without getting checked |
| 02:41.25 | brlcad | not just a coverity warning, it'll almost certainly end up with a crash with the right conditions (which again just was never possible even if memory was uninitialized) |
| 02:54.16 | *** join/#brlcad fenn (~fenn@131.252.130.248) |
| 02:54.17 | *** join/#brlcad kanzure (~kanzure@131.252.130.248) |
| 03:04.35 | clock | brlcad, I tried to build a model how the brain understands language |
| 03:04.41 | clock | brlcad, and would like to run it on BRL-CAD source |
| 03:05.04 | clock | because it spits out what it believes to be the most important concepts appearing in the body of the source code |
| 03:05.29 | clock | brlcad, I can imagine such a listing of the topmost important things with a brief explanation or reference to documentation could be a handy reference for BRL-CAD programmers |
| 03:05.33 | clock | brlcad, especially beginners |
| 03:07.01 | brlcad | okay, a bit interesting to see what it comes up with |
| 03:07.37 | clock | brlcad, I think it likes large corpora of statistics |
| 03:07.40 | clock | like 5G overnight |
| 03:07.52 | Stragus | You want a natual language parser to run on the BRL-CAD source? :) The documentation I guess? |
| 03:08.03 | clock | I got impression that the pure BRL-CAD source has only 2 MB but u said according to your check something order of 20 MB |
| 03:08.26 | clock | Stragus, nono its not a natural language parse |
| 03:08.46 | brlcad | I assume this is some sort of per file word frequency analysis |
| 03:09.00 | brlcad | aggregated over all files |
| 03:09.13 | Stragus | The brain has pretty fixed rules on grammar and how it understands language, that's why all human languages share many fundamental characteristics |
| 03:10.29 | Stragus | has a friend with a master in linguistics, quite an interesting topic |
| 03:11.12 | clock | Stragus, can you elaborate more what u in this sentence mean under "fixed", "rules", and "grammar"? |
| 03:11.33 | clock | Stragus, and "understands"? |
| 03:11.46 | clock | Stragus, and "language"? |
| 03:12.00 | clock | Stragus, I understand your usage of the word "brain" pretty clearly. |
| 03:13.07 | Stragus | We are born with many hardwired concepts of grammar. Any language that wouldn't follow these rules couldn't be processed that easily, the frontal cortex would have to do all the painstaking parsing work |
| 03:13.42 | clock | Stragus, yes I can imagine... like feeding it a bzipped stream might not fit the machinery of language the brain comes with |
| 03:14.00 | clock | Stragus, so although a pretty simple program can pase a bzip stream we might sweat pretty much doing so |
| 03:14.07 | clock | Stragus, u mean something like that? |
| 03:14.10 | Stragus | Ah yes, the frontal cortex would have a very hard time sorting 9000000 strings lexically :) |
| 03:14.21 | Stragus | (The BWT transform of BZIP2) |
| 03:14.33 | Stragus | But I meant the grammar |
| 03:15.23 | Stragus | Subjects and verbs, nested and relative propositions, a lot of stuff is hardwired |
| 03:15.30 | clock | Stragus, OK so can u give a nice example of what u said? |
| 03:15.45 | clock | Stragus, that sounds pretty fascinating |
| 03:15.47 | clock | I mean... |
| 03:16.02 | clock | When they pumped subjects and verbs into my head in primary school I didnt find it fascinating |
| 03:16.12 | clock | but the fact u say now there is some kind of machinery inside for that |
| 03:16.33 | clock | my skull is pretty stiff and filled with incompressible liquid by the way :) |
| 03:17.07 | Stragus | Linguists have created "simple" languages based on logic (and very consistent) that don't follow our hardwired language grammar, and they were extremely hard to learn for anyone |
| 03:17.25 | clock | Stragus, Thai? :-P |
| 03:17.38 | Stragus | No. :) |
| 03:18.03 | clock | Stragus, yeah but do they have some kind of schematic how those verb and subject circuits are wired? |
| 03:18.15 | clock | Stragus, like u know the entorhinal dead reckoning decoders? |
| 03:18.56 | clock | Stragus, theres basically a hierarchy of triangular bandlimited 2D barcodes plus some hashing |
| 03:19.14 | clock | Stragus, and it takes all kinds of data from movement and position and turns |
| 03:19.41 | clock | And works like dead reckoning navigation |
| 03:19.46 | clock | I mean description into that kind of level |
| 03:19.55 | Stragus | I haven't studied the stuff, but they pretty much found the fundamental grammatical rules any human language has to follow |
| 03:20.26 | Stragus | Obviously it's still rather abstract, cognitive sciences are pretty fuzzy |
| 03:20.34 | clock | I dont think they are fuzzy |
| 03:20.48 | clock | the visual front end from hubel wiesel I think is pretty solid |
| 03:20.55 | Stragus | Well, compare psychology to physics. :) |
| 03:20.58 | clock | although I wish they understood a it about signal processing |
| 03:21.39 | clock | Stragus, I think psychology is a mixture of astrology, cybernetics and programming of analog portable supercomputers |
| 03:21.49 | clock | throw away the astrology part and you get a nifty science in my opinion |
| 03:22.14 | Stragus | Human emotions don't have much to do with programming and computers |
| 03:22.19 | clock | with astrology I mean Freud and similar Science Based On Statistically Significant Repeatable Experimental Data |
| 03:24.14 | clock | Stragus, if you have an opinion that human emotions don't have much to do with programming and computers, u are welcome to have your own opinion, but please dont present your opinions as if they were facts |
| 03:24.31 | clock | Stragus, cause people often feel disrespected when that is done |
| 03:24.33 | clock | And I am people too |
| 03:25.33 | Stragus | Software programming and computers are pure maths, brute-force applied logic |
| 03:25.46 | Stragus | The human brain doesn't quite work like that |
| 03:26.03 | clock | Hmm |
| 03:26.20 | Stragus | (Or any neural network, simulated ones too) |
| 03:26.22 | clock | And everywhere I look inside brain, I see logarithms, principal component transforms and differential equations |
| 03:26.25 | clock | sines and cosines |
| 03:26.34 | clock | square (function) |
| 03:26.44 | clock | gaussian curves |
| 03:26.59 | clock | convolutions |
| 03:27.19 | clock | I would call that pure maths |
| 03:27.41 | Stragus | Hum... I see neurons, a lot of neurons, connected chaotically as a learning network |
| 03:27.57 | clock | Stragus, sure thats another level |
| 03:28.22 | clock | Stragus, I think its as if I say "everywhere I look inside Pentium I see buses, registers, adders, multipliers, clock distributors" |
| 03:28.43 | clock | Stragus, and as if you said "Hum... I see CMOS transistors, lots of CMOS transistors,..." |
| 03:29.15 | clock | Stragus, by the way I love those neurons... |
| 03:29.30 | clock | One neuron can do a PCA on like 10'000 inputs without blinking an eye |
| 03:29.39 | clock | with power consumption of like I don't know how little |
| 03:29.49 | Stragus | Power efficiency is great, but neurons are slow :p |
| 03:30.11 | clock | Stragus, but? |
| 03:30.29 | clock | Stragus, anyway what exactly told you that friend about the subject and verb stuff? |
| 03:30.36 | Stragus | Great power efficiency in a dense 3D network, with a built-in fluid for heat evacuation and nutriment transport, but each neuron is slow |
| 03:31.02 | clock | Stragus, slow? |
| 03:31.16 | Stragus | I don't recall exactly, I'll have to ask him to explain again what the fundamental grammar rules are |
| 03:31.27 | clock | Stragus, maybe u can show me a faster system that can do complete transocding of objective reality into subjective and back into objective in less than 200 ms? |
| 03:31.54 | clock | Stragus, and the total calculating power is 37'000 teraflops, with 20W power input |
| 03:32.18 | clock | Stragus, I am satisfied both with how fast my brain is in terms of MFLOPS and in terms of latency |
| 03:32.37 | clock | Stragus, even such a "trivial" thing like a digital video broadcasting encoder can have latencies like 5'000 ms |
| 03:32.47 | Stragus | I wonder how they would compute a processing power in terms of billions of floating point operations per second! |
| 03:33.00 | clock | and the fastest supercomputer NUDT Tianhe-2 has 37 MFLOPS but with power input of 5MW |
| 03:33.01 | Stragus | I mean, most humans can perhaps do 1-2 flop per second |
| 03:33.26 | clock | Stragus, I can do more |
| 03:33.30 | Stragus | Power efficiency is amazing though, that's for sure |
| 03:33.53 | clock | Stragus, my brain can churn 2x150Mpix 3D video down to 2x1Mpix at about 50 Mpix-s |
| 03:34.00 | clock | with 3D decoding motion decoding |
| 03:34.04 | clock | object recognition |
| 03:34.08 | clock | and that all pretty whipping fast |
| 03:34.18 | clock | I dont have to contemplate long before I recognize a dog, a cat, or my mother |
| 03:34.55 | Stragus | Indeed. I'm just saying that "floating point operations per second" is a little misleading :) |
| 03:34.58 | clock | Stragus, if u can implement that in 1-2 flop per second I would suggest you to apply your V to a company that makes graphic cards :) |
| 03:35.02 | clock | V -> CV :) |
| 03:35.09 | Stragus | The brain's visual processing is fantastic |
| 03:36.35 | brlcad | clock: what's your website url that has your .g models? |
| 03:36.43 | *** join/#brlcad LordOfBikes_ (~armin@dslb-092-074-238-118.092.074.pools.vodafone-ip.de) |
| 03:36.47 | brlcad | the networking device one |
| 03:37.09 | clock | brlcad, http://ronja.twibright.com/3d/ |
| 03:37.17 | clock | brlcad, for each model there is a .g clickable link |
| 03:37.25 | brlcad | thanks |
| 03:37.33 | clock | Stragus, I can second that |
| 03:37.50 | clock | Stragus, I built it myself in software and I find the results fantastic |
| 03:38.15 | clock | Stragus, it can do like a half of Photoshop/GIMP just by tuning the parameters of the decoder |
| 03:38.22 | clock | Stragus, like u have music equalizer you know? |
| 03:38.28 | clock | Wanna sharper? Turn that knob |
| 03:38.37 | clock | wanna white balance? Throw that channel out |
| 03:38.43 | clock | Wanna B/W? throw that one out |
| 03:38.56 | clock | brightness? contrast? edge detect? |
| 03:39.48 | clock | Oh I have a listing here... hope is not too many lines |
| 03:39.49 | Stragus | There are so many aspects to the brain's visual processing most of us aren't even aware of |
| 03:40.00 | clock | Colors: Levels: Gamma |
| 03:40.00 | clock | Colors: Color Balance |
| 03:40.00 | clock | Colors: Hue-Saturation |
| 03:40.00 | clock | Colors: Brightness-Contrast |
| 03:40.00 | clock | Colors: Invert |
| 03:40.01 | clock | Colors: Auto: White Balance |
| 03:40.03 | clock | Colors: Auto: Color Enhance |
| 03:40.05 | clock | Colors: Auto: Normalize |
| 03:40.09 | clock | Colors: Auto: Stretch Contrast |
| 03:40.11 | clock | Colors: Auto: Stretch HSV |
| 03:40.13 | clock | Colors: Retinex |
| 03:40.15 | clock | Filter: Blur: Gaussian Blur |
| 03:40.17 | clock | Filter: Blur: Motion Blur |
| 03:40.19 | clock | Filter: Enhance: Sharpen |
| 03:40.21 | clock | Filter: Enhance: Unsharp Mask |
| 03:40.22 | Stragus | We have two powerful motion detection filters near the focus point, but just a lesser motion detection filter in the peripheral vision |
| 03:40.23 | clock | Filter: Edge-Detect: Difference of Gaussians |
| 03:40.25 | clock | Generic: Convolution Matrix (in limited sense) |
| 03:40.27 | clock | COlor balance of skin without influencing the white balance |
| 03:40.37 | Stragus | There are optical illusions that exploit that stuff |
| 03:40.38 | clock | Changes of face expression, apparent age and facial attractivenes |
| 03:40.49 | clock | Changes in emotional atmosphere of the scene |
| 03:41.55 | clock | Stragus, in a picture with a field of plants, it can even change the plants to a different type |
| 03:42.17 | clock | plants=vegetables, flowers etc. |
| 03:43.30 | clock | Stragus, can produce those rainbow-like LSD colours |
| 03:44.47 | Stragus | The brain's visual processing is something we have a very hard time matching, not by lack of processing power but... somehow, proper code |
| 03:45.56 | Stragus | A neural network is perfectly suited to that kind of problem though. No comparison with floating point operations :) |
| 03:46.57 | clock | Stragus, I didn't have hard time matching that |
| 03:47.01 | clock | Stragus, so please speak for yourself |
| 03:47.27 | clock | Stragus, In my opinion its the sheer processing power thats difficult to match with semiconductor computers |
| 03:48.12 | clock | Stragus, and again, please dont present your opinions as facts. In my model the correspondence with floating operations was pretty almost 1:1 straightforward |
| 03:48.42 | clock | Stragus, by the way, do you know what it looks like, if you inject random noise into the primary visual cortex (V1)? |
| 03:48.57 | Stragus | I don't think it's just an opinion that we don't have software matching a brain's visual processing |
| 03:49.13 | Stragus | If you didn't have a hard time matching that, then you should share it with the world! |
| 03:50.11 | clock | Stragus, please guess what random noise into the primary visual cortex (V1) looks like :) |
| 03:50.25 | Stragus | You mean noise in the visual input? The brain probably filters out most of it |
| 03:50.46 | clock | not visual input, I said primary visual cortex (V1) |
| 03:50.54 | clock | Thats back in the head |
| 03:51.00 | clock | Broadmann area 17 if I remember correctly |
| 03:51.11 | Stragus | How do you insert noise in a neural network? Make some neurons fire randomly? |
| 03:51.41 | Stragus | That would probably be either hallucinations or a seizure |
| 03:51.47 | clock | Stragus, so you want to know what kind of noise I am injecting? |
| 03:52.00 | clock | Stragus, I take all the analog channels that are there and add additive white gaussian noise |
| 03:52.27 | clock | which has same signal to noise ratio in all of the channels |
| 03:52.44 | clock | hehe :) |
| 03:52.52 | clock | that neither hallucination nor seizures |
| 03:52.58 | clock | it looks like a diamond snowstorm :) |
| 03:53.23 | clock | which probably I should explain what a diamond snowstorm is |
| 03:53.49 | Stragus | I'm not sure what analog channels you are talking about. The neurons firing potentials? |
| 03:53.50 | clock | Stragus, have u ever been in a snowstorm? |
| 03:54.08 | Stragus | I live in Montreal, roughly 40 times per year :) |
| 03:54.33 | clock | Stragus, OK I define analog channel as the value when you take the neuron axon and apply a gaussian time window convolution with standard deviation of 20 millisecond |
| 03:54.51 | Stragus | Okay |
| 03:55.02 | clock | Stragus, have you noticed the snowstorm noise in the picture kinda differs from TV noise= |
| 03:55.17 | clock | In the sense that there are also "bigger" or "lower frequency" "pockets" floating around? |
| 03:55.38 | Stragus | Hum, I guess so |
| 03:55.52 | clock | and now add a colourful, rainbowy-spectrum twinkling to that |
| 03:55.57 | clock | like stars twinkle in diamond colors |
| 03:56.17 | Notify | 03BRL-CAD Wiki:Maths22 * 7765 /wiki/Deuces: Removed completed code tasks. |
| 03:56.36 | clock | Stragus, if you apply that kind of noise over a persons face the identity of the person appears kind auncertain |
| 03:56.49 | clock | of course stronger noise means more uncertainty |
| 03:56.59 | Stragus | Of course. So that's noise on the visual input then |
| 03:57.07 | clock | Stragus, to me it looks like I recall the persons face from memory but I cannot recall exactly |
| 03:57.26 | clock | Stragus, no, as I said, not visual input, in V1 |
| 03:57.40 | clock | If u put noise on visual input you get something like TV noise or digital camera noise |
| 03:57.47 | clock | That doesnt make human face look uncertain |
| 03:57.52 | clock | that face just looks noise |
| 03:57.53 | clock | noisy |
| 03:57.58 | clock | like low quality pic |
| 03:58.05 | Stragus | At some point, with enough noise, it becomes uncertain :) |
| 03:58.19 | clock | sure |
| 03:58.21 | Stragus | I have done some image processing, at some point recognition becomes a probability with noise |
| 03:58.24 | clock | but this uncertainty is more natural |
| 03:58.30 | clock | like incomplete recall from memory |
| 03:58.40 | clock | or... looks more natural to me |
| 04:00.35 | clock | Stragus, I get pretty disgusted by so called image processing |
| 04:00.44 | clock | Stragus, for example what they call "edge detectors" |
| 04:00.53 | clock | Seems to me people have never seen an edge in their life |
| 04:00.59 | clock | or have complete lack of idea what an edge is |
| 04:01.04 | Stragus | Ah? :) I have done some of that |
| 04:01.18 | clock | and those filters they apply and claim to be edge detectors.. I think they are everything but edge detectors |
| 04:01.25 | clock | and when then I see those broken, noisy results |
| 04:02.03 | Stragus | Edge detection is just a little half-broken step on the way to the next processing steps, it doesn't have to be accurate |
| 04:02.28 | clock | Stragus, OK :) |
| 04:02.42 | clock | Please design me a sparrow with your "edge detection that doesnt have to be accurate" |
| 04:02.49 | clock | In the size of a sparrows head |
| 04:02.54 | clock | with the power available to sparrows brain |
| 04:03.06 | Stragus | Eheh |
| 04:03.27 | clock | youre supposed to fly at 30km/h through a 5cm channel between random, ambiguous looking twigs of a bush, with such a reliability you dont kill yourself more often than once per 20 years |
| 04:03.32 | Stragus | Neural networks don't do any of that because it's an entirely different way of processing information |
| 04:03.43 | Stragus | But edge detection works okay for transistor chips |
| 04:04.54 | clock | Stragus, In my opinion neural networks do that |
| 04:05.14 | Stragus | Edge detection? |
| 04:05.18 | clock | yes |
| 04:06.10 | clock | The trick is, what brain calls an edge is something quite different than what "image processing" people call edge |
| 04:06.17 | Stragus | Well not the computer science definition of edge detection, but at some point it tracks the edges between different objects, of course |
| 04:06.57 | Notify | 03BRL-CAD:starseeker * 63364 brlcad/branches/qtged/src/qbrlcad/cadtreeview.cxx: Try a slightly different approach to forcing a full update of related object items |
| 04:07.13 | clock | Stragus, if you want to know what brain calls an edge |
| 04:07.23 | clock | I recommend look around you and find some edges |
| 04:07.32 | clock | those are what brain calls edges :) |
| 04:07.34 | clock | So simple :) |
| 04:07.41 | clock | You may contemplate what they have in common |
| 04:08.01 | clock | Stragus, and please dont try to limit your choice of edges to what you know an "image processing" algorithm would have easy time dealing with |
| 04:08.14 | Stragus | That doesn't explain how the brain processes the information :), the visual cortex is autonomous and we only consciously get the final results |
| 04:08.26 | Stragus | No way to debug the process and examine the registers and stack memory |
| 04:08.54 | clock | Stragus, no? |
| 04:09.32 | clock | Stragus, I believe one holiday postcard has the whole structure of human visual cortex encoded in (except the motion part of course) |
| 04:09.39 | Stragus | As far as I know, we don't yet understand the brain's visual processing too well |
| 04:09.45 | clock | Stragus, to figure that, all you have to do is look at the postcard |
| 04:09.57 | clock | the postcard is not a white noise of statistically independent random pixels |
| 04:11.20 | Stragus | We have identified the zones that fire up when doing some specific visual tasks |
| 04:11.52 | clock | which is kinda like identifying the zones in PC which fire up when you play games or back your hard disk |
| 04:11.52 | Stragus | But I don't think we have understood how the image processing works exactly |
| 04:12.00 | Stragus | Yup |
| 04:12.43 | clock | Stragus, I recommend, just try to build it :) |
| 04:12.55 | clock | Wanna understand motorcycles? Build a motorcycle :) |
| 04:13.07 | Stragus | So I should build a visual cortex? :) |
| 04:13.09 | clock | Wanna understand brain? Build a brain :) |
| 04:13.12 | clock | yep |
| 04:13.36 | clock | Stragus, thats exactly what I did |
| 04:13.50 | clock | I was curious and wanted to see what happens when I manipulate the signals in primary visual cortex |
| 04:13.58 | Stragus | I had a hard time writing code that would locate photogrammetry targets in an image, through shadows, noise, fuzzy, out of focus and so on :p |
| 04:14.10 | clock | So I googled up all kinds of scientific studies on that topic and then programmed the things they said the brain does with the image data |
| 04:14.13 | Stragus | "Hard time" might be an exageration but it wasn't exactly easy |
| 04:14.24 | clock | And in that process I felt like I understand the way the brain is designed |
| 04:14.50 | Stragus | Cool. I haven't digged enough on the topic |
| 04:15.12 | clock | The problem the studies are done by people who havent much clue about the topic |
| 04:15.13 | clock | biologists |
| 04:15.28 | clock | they write a minutiously precise treatise on how the brain reacts on white lines |
| 04:15.31 | Stragus | There are so many interesting topics to learn, so many interesting projects to explore, and so little time. And a daily job. |
| 04:15.38 | clock | and forget to tell you how it reacts to grey lines |
| 04:15.54 | clock | its like... |
| 04:16.10 | clock | if Top Gear did a car review where all they do is drive straight full gas |
| 04:18.15 | clock | Stragus, I must say, the implementation of image processing in the brain is VIP ***** 5 star Grand Deluxe |
| 04:18.24 | clock | Like the best filters I can imagine |
| 04:18.27 | clock | the best algorithm |
| 04:18.31 | clock | I could hardly imagine it better |
| 04:18.36 | clock | sometimes it was kinda breathtaking |
| 04:18.38 | clock | and the elegance |
| 04:18.58 | clock | It was like |
| 04:19.27 | clock | if you have 80 billion dollars and want to flaunt your wealth by having a image processing system designed for you |
| 04:19.32 | clock | then I would do exactly that |
| 04:19.43 | Stragus | Yup, a couple millions year of evolution, computer science hasn't caught up yet :) |
| 04:19.43 | clock | louis vuitton of image processing |
| 04:19.43 | clock | diamond clad |
| 04:19.43 | clock | gold plated |
| 04:19.58 | clock | individually signed |
| 04:20.29 | Notify | 03BRL-CAD Wiki:Maths22 * 7766 /wiki/Deuces: Removed completed documentation items. |
| 04:20.36 | clock | Stragus, have you noticed your vision is neither pixelated, not stuttering, blurring on movement, no stairs, squary artifacts, nothing seen in computer video? |
| 04:20.40 | Stragus | Really? Generally in biology, some stuff are strangely designed, as a by-product of an evolutionary process blind to long-term goals |
| 04:21.21 | Stragus | Yes well, the eye isn't made of pixels either |
| 04:21.36 | clock | in my opinion it is |
| 04:21.46 | clock | the individual photocells |
| 04:21.46 | Stragus | And the visual cortex smoothes that input to extract the real information |
| 04:21.52 | Stragus | And that's what we really "see" |
| 04:22.17 | Notify | 03BRL-CAD Wiki:Maths22 * 7767 /wiki/Deuces: Removed completed QA task |
| 04:22.25 | clock | it is because there is a massive downsampling |
| 04:22.40 | clock | to a matter the signal to noise ratio to the antialising noise is HiFi |
| 04:22.55 | clock | antialiasing -> aliasing |
| 04:23.03 | clock | and it has no time quantization |
| 04:23.09 | clock | no issues with frame rate |
| 04:23.17 | Stragus | There are no frames :) |
| 04:23.28 | Stragus | It's continuously smooth processing |
| 04:23.37 | clock | in time domain yes |
| 04:23.46 | clock | in spatial no but it has such a brutal oversampling its like... |
| 04:23.55 | Stragus | Yup |
| 04:24.13 | clock | if the boss told you instead try to design it as cheap as possible as expensive as possible |
| 04:24.38 | Stragus | thinks we need a switch to turn off the downsampling and read the raw input, when we need to read that street name 200 meters away |
| 04:25.45 | clock | Stragus, no no its not like that |
| 04:26.06 | clock | I said wrong |
| 04:26.11 | clock | its not downsampling its oversampling |
| 04:26.19 | clock | it doesnt cause any loss of resolution |
| 04:26.55 | clock | the retina is 150 Mpix |
| 04:27.02 | clock | the lens is 10mm not a great sharpness |
| 04:27.11 | clock | something like put a 150Mpix CMOS into your $30 webcam |
| 04:27.45 | clock | so you have plenty extra resolution on the sensor to CUT THE CRAP WITH SPATIAL SAMPLING ONCE AND FOREVER! |
| 04:28.04 | clock | who cares it takes huge amounts of extra processing power? |
| 04:28.13 | clock | We have 37'000 Teraflops onboard :) |
| 04:29.00 | Notify | 03BRL-CAD Wiki:Maths22 * 7768 /wiki/Deuces: Removed completed UI tasks |
| 04:33.20 | Stragus | I have a very hard time measuring the brain as "floating point operations per second" :p |
| 04:33.57 | clock | Stragus, here is an example from my simulator what happens when you turn up the colors extremely http://i.iinfo.cz/images/157/leaves.jpg |
| 04:34.20 | clock | I find it facsinating |
| 04:34.34 | clock | unlike similar effect in Photoshop/GIMP it doesn't appear artificial to me at all |
| 04:34.37 | clock | very naturak |
| 04:34.39 | clock | natural |
| 04:34.44 | clock | not in any way "clipped" |
| 04:35.03 | Notify | 03BRL-CAD Wiki:Maths22 * 7769 /wiki/Deuces: Removed completed outreach/research tasks. |
| 04:35.11 | clock | I kinda don't even have a feeling it should show something different than the original scene |
| 04:35.21 | clock | let apart the fact its kinda psychedeleic or halucinogenic |
| 04:35.50 | Stragus | I find the second image more difficult to recognize. Like the leaf on top of the other leaf creating a shadow |
| 04:36.25 | clock | Stragus, OK I can understand that |
| 04:36.39 | clock | Stragus, for me the essence or atmosphere of the summer is greatly amplified in the second image :) |
| 04:37.32 | clock | its like the red heat of the sun is almost unbearable on the leaves |
| 04:37.41 | clock | and the coolness of the shadows in the backround extreme :) |
| 04:37.52 | Stragus | Eh. The image processing I have done was stuff like that : http://www.rayforce.net/photogrammetry006.png |
| 04:38.00 | clock | for me its kinda ... summer to the maxxx! :) |
| 04:38.06 | Stragus | So... basically locate and identify photogrammetry targets in the image |
| 04:39.09 | clock | Stragus, congrats, looks very cleanresults! :) |
| 04:39.22 | clock | Stragus, why did u throw out the colors? |
| 04:39.34 | clock | Stragus, the brain doesnt have colours in picture just for fun :) |
| 04:39.35 | Stragus | Eh yes, it works through shadows, blurriness, fuzziness, and all kind of other problems |
| 04:40.00 | Stragus | I didn't throw out the colors, it's just easier to see the debugging output over grayscale |
| 04:40.12 | Stragus | The code works with real RGB |
| 04:40.16 | clock | ah good :) |
| 04:41.36 | clock | Stragus, my brain identifies a photogrammetry target upper left from #21 and #9 |
| 04:41.47 | Stragus | I know that! :) |
| 04:41.56 | clock | Stragus, is my brain wrong or your code wrong? |
| 04:42.03 | Stragus | But since it's partly occluded, it can't be sure of the bit decoding around the core |
| 04:42.37 | clock | Stragus, my brain can locate the core pretty accurately :) |
| 04:42.38 | Stragus | A smarter code would be able to figure out what really belongs to the coding ring and what not |
| 04:42.51 | clock | Stragus, and you even haven't defined to me what a photogrammetry target should look like? |
| 04:42.53 | Stragus | Yes yes, it's the ring that can be tricky |
| 04:43.12 | clock | oh another between 10 and 17 |
| 04:43.47 | clock | but OK I cheat with 37 PFLOPS :) |
| 04:44.21 | Stragus | Can you identify all targets in 50 such images per second? :) |
| 04:44.29 | Stragus | Well, "almost all targets" |
| 04:44.34 | Stragus | Non-occluded ones anyway :p |
| 04:44.35 | clock | no :) |
| 04:45.41 | *** join/#brlcad gaganjyot (~gaganjyot@124.253.225.90) |
| 04:45.53 | clock | Stragus, but I can drink from a glass without spilling it |
| 04:46.01 | Stragus | My code can't do that |
| 04:46.02 | clock | ride a skateboard with less than 1 crash per year |
| 04:46.51 | clock | and chat on IRC while having an intention to actually do gym instead :) |
| 04:47.33 | Stragus | "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a |
| 04:47.36 | Stragus | sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, |
| 04:47.40 | Stragus | solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly." |
| 04:47.46 | Stragus | Specialization is for computers. |
| 04:49.44 | clock | Stragus, can your program find a boyfriend? |
| 04:49.46 | clock | Stragus, I can't do that |
| 04:50.52 | Stragus | I heard some people have created algorithms for that... :) |
| 04:51.31 | clock | Stragus, my Thai ex boyfriend was amazing |
| 04:51.48 | clock | he could do 37 PFLOPS with just 66% of power consumption of me |
| 04:51.54 | clock | cause he was only 50kg heavy |
| 04:52.01 | clock | and the power consumption depends on weight :) |
| 04:52.26 | clock | He called himself stupid because he had only primary school |
| 04:52.32 | clock | But I call this concentrated intelligence |
| 04:52.41 | Stragus | There are many ways to learn |
| 04:53.00 | Stragus | I only have high-school myself, I just learned the rest on my own |
| 04:54.35 | clock | Stragus, u know what human life is about? |
| 04:54.41 | clock | I think I can tell you that pretty exactly :) |
| 04:54.52 | clock | searches in his reference |
| 04:57.16 | clock | its about things, rooms, home, people, cars, work, houses, men, time, places, areas, water, women, class, shows,... |
| 04:58.27 | Stragus | Darn. I got it all wrong |
| 04:58.48 | Stragus | I thought it was about creating fun stuff, learning fun stuff, working a little on the side, and eating good food |
| 05:00.20 | clock | Stragus, maybe your life is statistically unusual :) |
| 05:00.28 | clock | Stragus, but I can confirm my life too is about those things :) |
| 05:00.55 | clock | and things is #1 |
| 05:01.05 | clock | I think no other species is so obsessed with things as homo sapiens |
| 05:01.20 | clock | like the amount of things I have at home... |
| 05:01.29 | clock | compared to how many things a crow or a dog have... |
| 05:01.29 | Stragus | Most other species are obsessed with food. But that's less a problem for us, so we found other stuff to worry about |
| 05:01.33 | clock | probably 0 :) |
| 05:01.37 | clock | a collar maybe and a bowl :) |
| 05:02.32 | clock | a kennel :) |
| 05:06.12 | clock | Stragus, the list is by the way output of my language analyzer modeled by the brain |
| 05:06.21 | clock | on dream database |
| 05:06.32 | clock | if u run it on project gutenberg english prose you get very similar list |
| 05:06.44 | clock | I actually threw away personal pronouns which lead the list |
| 05:06.48 | maths22 | brlcad: I'm back, and my screen session was still live! |
| 05:06.56 | clock | and no, it is not word frequency, as brlcad suggested |
| 05:07.03 | clock | if it were, the leader would be probably "the" |
| 05:07.12 | clock | But "the" doesnt figure in the top words at all |
| 05:07.58 | clock | it works prefectly same well on Khmer language which doesn't have any spaces |
| 05:08.17 | clock | and therefore you cannot know the word boundaries and they are not fed explicitly :) |
| 05:19.06 | gaganjyot | brlcad, sincere apologies for not doing it yesterday |
| 05:19.13 | gaganjyot | https://github.com/gaganjyot/LCKernel-Example |
| 05:19.25 | gaganjyot | here is the clone of sketcher file in proc-db |
| 05:20.01 | gaganjyot | it was very easy. I was only unable to understand regarding the export to G file which we discussed yesterday hence made it late :( |
| 05:21.47 | clock | brlcad, why are you asking about the .g files from Ronja? :) |
| 05:27.11 | clock | brlcad, now I confirm I get 26 MB with your method of selecting source |
| 05:27.19 | clock | brlcad, I must have done something wrong |
| 05:33.13 | brlcad | clock: I was just looking for the site but couldn't remember the name |
| 05:35.24 | brlcad | gaganjyot: heh, any particular reason you put that all into a class with just one big "do it" function instead of just embedding the logic in main so they could be compared side-by-side? :) |
| 05:38.43 | brlcad | gaganjyot: either way, this looks pretty good. someone willl need to de-c++11ify it in order to really see how this will map into our backend lib, and remove the namespace using declarations |
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| 05:44.52 | clock | brlcad, Stragus OK so what my program say |
| 05:45.27 | clock | <PROTECTED> |
| 05:46.02 | clock | hit dist dir ptr size struct min bu_log( edge region curve new_ mat id data tmp num loop scale _name nmg_ vertex path result faces fastf_t |
| 05:46.32 | clock | width plane height temp =0; rt_ [1] = ray it pixel pp _list left model solid ... |
| 05:47.01 | clock | also: -2013 United States Government as represented by the U.S. Army Research Laboratory... :) |
| 05:47.30 | clock | brlcad, you cannot hide before the prying eyes of my program that BRL-CAD has something to do with "United States Government as represented by the U.S. Army Research Laboratory" :) |
| 05:47.32 | clock | hahahaha :) |
| 05:48.23 | clock | brlcad, shouldnt one update the -2013 to -2014? |
| 05:50.00 | clock | and cryptic "f, -0.3" |
| 05:50.11 | clock | I wonder what that number has in relation with BRL-CAD :) |
| 05:50.29 | clock | bu_vls_addr(& :) |
| 05:50.32 | Notify | 03BRL-CAD Wiki:Inderpreet * 7770 /wiki/Deuces: /* Code */ |
| 05:51.00 | clock | bu_free(, segment, parent, YERO( |
| 05:51.02 | clock | ZERO |
| 05:51.35 | Notify | 03BRL-CAD Wiki:Inderpreet * 7771 /wiki/Deuces: /* Code */ added new task for GCI |
| 05:52.11 | clock | BU_ALLOC(, VSCALE, BOT... |
| 05:52.34 | clock | VSUB2, faceuse, corner, ellipse |
| 05:53.01 | clock | poly, command, eu2, sketch |
| 05:53.39 | brlcad | it is -2014 |
| 05:55.49 | clock | torus failure |
| 05:55.51 | clock | LOOOOOOOOL |
| 05:56.02 | clock | "While driving a car, I suffered a torus failure" :)))))))) |
| 05:57.15 | clock | brlcad, I took the most recent I found for download, brlcad-7.24.2, so maybe that version was prepared in -2013? |
| 05:57.26 | brlcad | nope |
| 05:59.25 | clock | brlcad, everywhere I Look into the code I see -2013 :) |
| 05:59.27 | brlcad | in fact, there's only 23 files I see that have that string |
| 06:00.24 | brlcad | ahh, I see .. there's a disconnect |
| 06:00.47 | clock | disconnect? |
| 06:01.27 | brlcad | yeah, the version is updated on trunk, but for some branch-merge reason, that commit isn't on the release/stable branches |
| 06:01.54 | brlcad | s/version/date/ |
| 06:02.46 | brlcad | ahhh, I know why that is |
| 06:03.03 | brlcad | Yeah.... 7.24.2 only has commits through Dec2013 merged into it |
| 06:03.12 | brlcad | the date update happened on new years day |
| 06:03.31 | brlcad | that's kinda funny |
| 06:04.20 | clock | (struct ged *gedp |
| 06:04.43 | clock | looks like passing struct ged *gedp as a first parameter is kinda popular in BRL-CAD :) |
| 06:05.18 | clock | or we also have BU_ALLOC. What can it do? I guess allocate something :) |
| 06:06.03 | clock | BU_LIST_INIT, NEAR_ZERO( |
| 06:06.28 | clock | struct rt_ |
| 06:06.45 | clock | I guess there must be a non-negligible usage of structures whose names begin with rt_ :) hehehe :) |
| 06:07.26 | clock | bu_vls_free, quat. I wonder if quat are quaternions :) |
| 06:07.27 | gaganjyot | brlcad, can I participate as mentor in GCI this year ? |
| 06:07.46 | clock | _specific, theta, bu_bomb( |
| 06:09.54 | gaganjyot | and you may check the lckernel code at github link I sent you https://github.com/gaganjyot/LCKernel-Example |
| 06:13.17 | clock | is satisfied with the result of the analysis |
| 06:45.21 | brlcad | gaganjyot: the criteria was spelled out in the e-mail :) |
| 07:00.59 | *** join/#brlcad gaganjyot (~gaganjyot@124.253.225.90) |
| 08:00.34 | Ch3ck_ | brlcad: would like to know if unit tests could be valid GCI tasks? |
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| 15:06.05 | Notify | 03BRL-CAD:starseeker * 63365 (brlcad/branches/qtged/src/qbrlcad/cadtreemodel.h brlcad/branches/qtged/src/qbrlcad/cadtreeview.cxx brlcad/branches/qtged/src/qbrlcad/cadtreeview.h): Add the ability to the treeview to feed a path in as a string for expansion and selection. |
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| 23:17.30 | brlcad | Ch3ck_: yes they can, but they have to be somewhat specifically scoped (what specific function(s)) |
| 23:17.51 | brlcad | in the past, unit tests have been problematic (bad tests, wrong tests, too hard, too much, etc) |
| 23:20.25 | brlcad | better ones have been where we provided a specific relevant example or template, and we can define exactly what they need to test |
| 23:26.00 | kanzure | brlcad: i was considering offering mentoring time, but then i rembered how poorly i executed on that last time. how desperate is the lack of mentors this time around? |
