I continue impatiently waiting for a large format true color electronic paper display at a quasi-reasonable price. I have had a different project idea for such a thing for several years now, but the wait continues. I imagine such a display would be excellent for the use described in this article. No need to mess about with matching light levels (although doing that was super cool!), battery would only need charged every few weeks or months, etc. There are actually a couple products that seem to be what I want, but for reasons I do not understand the image displayed can not be changed. I have no idea why someone would buy electronic paper signage whose image has to be provided to the manufacturer and which can not be changed later. I would expect a simple printed sign would be superior for any use that would be put to.
A Canvas Made of Pixels
51–60 of 111 posts
Re: A Canvas Made of Pixels
#52Earlier quoted context omitted.
I've seen this idea used in machine learning as well. There was a paper [1] whose goal was a binary classification of the center pixel in a region of interest. Interestingly, their results improved when they applied a foveal blurring surrounding the pixel to be classified. [1]: http://people.idsia.ch/~juergen/nips2012.pdf
Interesting! Thanks for sharing! There are algorithms that mimic fixation paths the eyes follow when presented with a novel image, very much related to modeling dopaminergic systems. It seemed to find task-relevant information dense areas first, and then slowly spread out to less information dense areas. I wonder if there'd be any benefit to running these algorithms on images, basically turning them into a video, and…
Do you have any more information about these algorithms? Or perhaps links to a paper or two? It gives me a couple ideas and sounds very interesting! I do wonder as you do as well. Feeding an image to a neural network instead of as a single input, but as a series of inputs separated over time, 'reusing' the same neurons for different portions of the image might allow for interesting feedback to develop.
Re: A Canvas Made of Pixels
#53He says in the article that "Apple did a good job with their monitor", but what he fails to realize is that the panel in that monitor is made by Samsung, and is used in numerous other monitors, such as a bunch of Dell Ultrasharp monitors. These are the exact same monitor, except with a different frame and stand, and are available for a fraction of the cost.
Which monitor would you recommend that uses the same display as the 5k iMac? Apparently Samsung made one half a year ago that costs as much as the iMac itself.
Re: A Canvas Made of Pixels
#54Earlier quoted context omitted.
I've seen this idea used in machine learning as well. There was a paper [1] whose goal was a binary classification of the center pixel in a region of interest. Interestingly, their results improved when they applied a foveal blurring surrounding the pixel to be classified. [1]: http://people.idsia.ch/~juergen/nips2012.pdf
Interesting! Thanks for sharing! There are algorithms that mimic fixation paths the eyes follow when presented with a novel image, very much related to modeling dopaminergic systems. It seemed to find task-relevant information dense areas first, and then slowly spread out to less information dense areas. I wonder if there'd be any benefit to running these algorithms on images, basically turning them into a video, and…
@otakucode The thread has gone too deep, so I can't reply to your comment directly.
I remember seeing a video of a robot that would attend to different parts of a scene based on the "saliency", in the sense of novelty, of its features. I can't find the specific video, but I think the model running the robot is related to:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3930917/
The paper is quite dense, as it describes biologically plausible models of dopaminergic systems, which makes the model quite complex as well, but it's interesting because this system is considered quite 'low-level', no cortex involved.
I'll add more if I can find any..
Re: A Canvas Made of Pixels
#55"Visitors to Microsoft chairman Gates' new mansion in Medina will find themselves in an electronic Disneyland where they will be able to "call up" a favorite painting or photograph on combination TV-computer screens. "Right now, only a billionaire could afford to try $80,000 monitors and $150,000 computer-storage devices (the house could have several) that may be needed to make this all work." from "Bill Gates: 50,00…
I remember reading about the various technological features Gates put in when he built his home. I would be really interested to read/see (video would be awesome) a followup piece about whether many of these things either required regular upgrading or else have simply become antiquated. I would guess that his family kept upgrading the home, but details would be interesting.
Re: A Canvas Made of Pixels
#56He says in the article that "Apple did a good job with their monitor", but what he fails to realize is that the panel in that monitor is made by Samsung, and is used in numerous other monitors, such as a bunch of Dell Ultrasharp monitors. These are the exact same monitor, except with a different frame and stand, and are available for a fraction of the cost.
Yea but the integrated quiet computer was also important for his project. Mounting a separate computer would have added a lot of complication.
Re: A Canvas Made of Pixels
#57Nicely done, though I would have loved to have seen some build pictures. There are a number of commercial players in this market (for example https://frm.fm/ ) which combine hardware and marketplace, and the geek in me would love to see these succeed. I work in e-commerce selling art reproductions and have thought a lot about this. I believe as soon as you make the art ephemeral or changeable, its value (to you, rath…
I would expect there are people who lovingly care for their collection of vinyl records and find the desire to digitize a music collection equally unimaginable.
Re: A Canvas Made of Pixels
#58Hogwarts paintings!
Almost! Still need to network them.
Re: A Canvas Made of Pixels
#59Constrast is the lagging factor in good computer displays.
These are called High Dynamic Range (HDR) displays.
The claim is the eye can see a contrast factor of about a million at any one time, and a billion switching between sunny daytime and darkest night. An end-to-end camera-display system would need 20 bit amplitudes represent such a dynamic range. Many current systems are just 8 or 12 bits.
SIGGRAPH often exhibits high end experimental displays. 4K resolution is close to what the eye can see. Four or six basis color systems improve color capture. But I generally just see an improvement in nature scenes. The huge win is HDR. A good HDR display is almost indistinguishable from looking through a window.
Re: A Canvas Made of Pixels
#60Thisi s cool, but to really reproduce art, you have to avoid RGB-based displays. I've always assumed the reason wide-gamut/CIE Lab*-influenced displays are uncommon is that RGB is "good enough" for most purposes outside of image-editing/printing. But they can only show a fraction of the colors humans can see. IIRC, the standard sRGB space used in most monitors can only show a third of the human-visible spectrum.