Lightnings taking a ride

by ceinmart

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The easy way to think about this is as follows: Imagine that instead of one camera, you had a grid of 100 cameras in a 10x10 array. When you fire a shot, each of them shoots at the same time. They will each have a slightly different view of the thing that you are taking a picture of. There are some mathematical models you can use to sort of "reverse ...


Here is my nutshell after reading through Ren Ng's very approachable paper. In a traditional digital camera the incoming light is focused onto a plane, the sensor, which measures brightness at each photosensitive cell, pixel. This produces a final image in the sense that the resulting raster of values can be plotted as a coherent image. A light-field ...


I'm not sure about reference code; this is relatively new, and mostly what I can find are papers, not implementations with open code. A key paper is Fourier Slice Photography, by Ren Ng at Stanford University — now, not surprisingly, at Lytro. There's an abstract of the paper here, with a few nice pictures. This doesn't give you something that you can take ...


Here are some of the ways: I use a monochromator, light sphere, and a photodiode. You can find most of those supplies at Edmund Optics and similar shops. You ...


Yes, color sensitivity is often measured and specified in bits. DxOMark provides one example and incorporates this into their camera ratings. From the description of their "Color Depth" test: Color sensitivity indicates to what degree of subtlety color nuances can be distinguished from one another, often meaning a hit or a miss on a Pantone ...

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