Mercurial > thoughts
changeset 66:eae81fa3a8e0
add camera timing idea.
author | Robert McIntyre <rlm@mit.edu> |
---|---|
date | Thu, 03 Oct 2013 17:42:48 -0400 |
parents | 1c6af9dd64d5 |
children | 036fe1b13120 |
files | .hgignore images/adelson-checkerboard.jpg org/adelson-notes.org org/comprehend-singularity.org org/ideas.org org/minds-eye.org |
diffstat | 6 files changed, 80 insertions(+), 93 deletions(-) [+] |
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1.1 --- a/.hgignore Fri Sep 27 13:07:34 2013 -0400 1.2 +++ b/.hgignore Thu Oct 03 17:42:48 2013 -0400 1.3 @@ -1,3 +1,4 @@ 1.4 syntax: glob 1.5 src* 1.6 html* 1.7 +.git/* 1.8 \ No newline at end of file
2.1 Binary file images/adelson-checkerboard.jpg has changed
3.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 3.2 +++ b/org/adelson-notes.org Thu Oct 03 17:42:48 2013 -0400 3.3 @@ -0,0 +1,67 @@ 3.4 +#+title: Notes for "Special Topics in Computer Vision" 3.5 +#+author: Robert McIntyre 3.6 +#+email: rlm@mit.edu 3.7 +#+description: 3.8 +#+keywords: 3.9 +#+SETUPFILE: ../../aurellem/org/setup.org 3.10 +#+INCLUDE: ../../aurellem/org/level-0.org 3.11 +#+babel: :mkdirp yes :noweb yes :exports both 3.12 + 3.13 +* Fri Sep 27 2013 3.14 + 3.15 + Lambertian surfaces are a special type of Matt surface. They reflect 3.16 + light in all directions equally. They have only one parameter, the 3.17 + amount of energy that is absorbed/re-emitted. 3.18 + 3.19 + [[../images/adelson-checkerboard.jpg]] 3.20 + #+caption: Lol checkerboard illusion. 3.21 + 3.22 + Look into Helmholtz' stuff, it might be interesting. It was the 3.23 + foundation of both vision and audition research. Seems to have took 3.24 + a sort of Baysean approach to inferring how vision/audition works. 3.25 + 3.26 + - Homomorphic filtering :: Oppenhiem, Schafer, Stockham, 1968. also 3.27 + look at Stockham, 1972. 3.28 + 3.29 + Edwin Land was Adelson's hero back in the day. He needed to create a 3.30 + color photo for the Polaroid camera. In order to process for 3.31 + automatic development of film, he had to get a good approximation for 3.32 + the illumination/reflectance decomposition that humans do, which he 3.33 + called Retinex. 3.34 + 3.35 + Cornsweet square wave grating is cool. 3.36 + 3.37 + - Retinex :: use derivatives to find illumination. Sort of 3.38 + implicitly deals with edges, etc. Can't deal with 3.39 + non-lambertian objects. 3.40 + 3.41 + 3.42 + Adelson introduces the problem as an "inverse" problem, where you 3.43 + try to "undo" the 3-d projection of the world on your retina. 3.44 + 3.45 + On the functional view of vision : "What it takes" is to build a 3.46 + model of the world in your head. The bare minimum to get success in 3.47 + life is to have a model of the world. Even at the level of a single 3.48 + cell, I think you still benefit from models. 3.49 + 3.50 + Spatial propagation is ABSOLUTELY required to separate embossed 3.51 + stuff from "painted" stuff. Edges, likewise, MUST have spatial 3.52 + context to disambiguate. The filters we use to deal with edges must 3.53 + have larger spatial context to work, and the spatial extent of this 3.54 + context must be the ENTIRE visual field in some cases! 3.55 + 3.56 +------------------------------------------------------------ 3.57 + 3.58 +** Illumination, shape, reflectance all at once 3.59 + 3.60 + What if we tried to infer everything together? Some images are so 3.61 + ambiguous it requires propagation from all three qualities to 3.62 + resolve the ambiguity. 3.63 + 3.64 + Brain has a competing painter, sculptor, and gaffer which each try 3.65 + to "build" the things in the world. There is a cost to everything 3.66 + such as paints, lights, and material, and then you try to optmize 3.67 + some cost function using these primitives. 3.68 + 3.69 + 3.70 + Horn, technical report, 1970 3.71 \ No newline at end of file
4.1 --- a/org/comprehend-singularity.org Fri Sep 27 13:07:34 2013 -0400 4.2 +++ b/org/comprehend-singularity.org Thu Oct 03 17:42:48 2013 -0400 4.3 @@ -27,4 +27,4 @@ 4.4 4.5 So, far in the future, when synthetic life rules the stars, it is 4.6 likely that their behavour will still be describable in the simplistic 4.7 -terms of the human stories of old. 4.8 \ No newline at end of file 4.9 +terms of the human stories of old.
5.1 --- a/org/ideas.org Fri Sep 27 13:07:34 2013 -0400 5.2 +++ b/org/ideas.org Thu Oct 03 17:42:48 2013 -0400 5.3 @@ -31,6 +31,17 @@ 5.4 getting credit. 5.5 #+end_quote 5.6 5.7 +- screen locking timing :: you use your computer camera to see if you 5.8 + are sitting in front of the computer. If you are, then the screen 5.9 + will never lock. If you are, then the screen will lock with a 5.10 + 30-40 second timeout. It's an extention of using inactivity to 5.11 + initiate the countdown, just with more information. 5.12 + 5.13 +- mirror toilet :: a toilet with a square basin made or mirror instead 5.14 + or porcelean. That way, you can see how good of a 5.15 + wipe job you have done / watch how your excretion 5.16 + system works. 5.17 + 5.18 - test dummies :: why don't we clone encephalic humans and use then to 5.19 test /in vivo/ human organ systems and drugs? It 5.20 would be ethical as long as there are women who are
6.1 --- a/org/minds-eye.org Fri Sep 27 13:07:34 2013 -0400 6.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 6.3 @@ -1,92 +0,0 @@ 6.4 -#+title: Ethics of Mind's Eye 6.5 -#+author: Robert McIntyre 6.6 -#+email: rlm@mit.edu 6.7 -#+description: 6.8 -#+keywords: 6.9 -#+SETUPFILE: ../../aurellem/org/setup.org 6.10 -#+INCLUDE: ../../aurellem/org/level-0.org 6.11 -#+babel: :mkdirp yes :noweb yes :exports both 6.12 - 6.13 -* COMMENT Ethical Considerations Regarding DARPA's Mind's Eye Program 6.14 - 6.15 -As scientists and engineers, it is our sacred duty to explore the 6.16 -boundaries of human knowledge in a responsible way. We are part of the 6.17 -larger organism of humanity, and tasked with discovering new things 6.18 -that help the race first, and all life second. 6.19 - 6.20 -While knowledge and non-sentient technology is neither morally good or 6.21 -evil, the things we discover are embedded in a wider cultural context, 6.22 -and in many cases it is possible to foresee possible uses and abuses 6.23 -our new technology will enable. 6.24 - 6.25 -It is naive to think that the government or any group of humans is 6.26 -either wholly good or evil, but by reasoning from the 6.27 -motivations/power of such groups, we can try to infer whether a 6.28 -technology will improve the lot of humanity or not. 6.29 - 6.30 -It is possible to give and institution/culture a technology that they 6.31 -will enthusiastically accept, but which will greatly diminish their 6.32 -quality of life. 6.33 - 6.34 -Some examples: 6.35 - 6.36 -PGP -- an encryption suite that can help individuals to send messages 6.37 - 6.38 - 6.39 - 6.40 -* Questions 6.41 - 6.42 -- What should our ethical place be in deciding whether or not to 6.43 - pursue research? 6.44 - 6.45 - - Follow orders, assume our overall culture will use things 6.46 - responsibly, and leave the ethical considerations to the 6.47 - government/people. 6.48 - 6.49 - - Many scientists who worked on the atomic bomb later questioned 6.50 - their decisions. 6.51 - - Yet, an advanced society /should/ have atomic weapons, if for 6.52 - nothing else than to defend themselves from meteors, blow shit 6.53 - up, etc. 6.54 - 6.55 - - We are each morally responsible for the things we help create. We 6.56 - are responsible for the misuses of technology we develop and the 6.57 - pain and suffering it causes. Ultimately our contributions to 6.58 - society will be judged by whether our technology did more good 6.59 - than bad. 6.60 - 6.61 -- If we decide that we *are* morally responsible for the technology we 6.62 - develop, then is the Mind's Eye project in particular something we 6.63 - should be doing? 6.64 - 6.65 - - Here are some things you can build with Mind's Eye tech: 6.66 - 6.67 - - System to monitor single humans living alone and call for help 6.68 - in the case of emergencies (such as a fall) 6.69 - 6.70 - - Same system for hospitals and nursing homes (of course, this 6.71 - also makes them even more impersonal) 6.72 - 6.73 - - The equivalent of a FBI special agent watching everything you do 6.74 - from the moment you step out your door to the moment you go back 6.75 - to your house to sleep, building a dossier of every move you 6.76 - make, everyone you talk to, where you shop, etc. 6.77 - 6.78 - - A concentration camp / prison that is ABSOLUTELY impossible to 6.79 - escape from. 6.80 - 6.81 - - Many other countries that don't care as much about human rights 6.82 - as America will use this technology to monitor their citizens 6.83 - 24/7. 6.84 - 6.85 - - Protection from surveillance in you own home does not apply 6.86 - unless you *own* your house. Say goodbye to privacy in school 6.87 - dorms, apartments, rented houses, etc. 6.88 - 6.89 - - People are OK with current surveillance because it is 6.90 - *dumb*. Mostly people only use security camera footage in the case 6.91 - of crimes, and it is a painstaking process because it requires 6.92 - manual human intervention. With AI, this will soon not be the 6.93 - case. 6.94 - 6.95 - 6.96 \ No newline at end of file