MIT researchers build an overexposure-proof HDR camera
by from Techreport on (#HSAN)
Any photographer who's ever overexposed a digital image is familiar with the results of that mistake: portions of the image are pure white, and even post-processing raw files can't bring back detail in those areas. That's because digital image sensors have only so many bits per pixel for recording intensity levels, and once the available bits are exhausted, or saturated, that pixel clips to white.
Researchers at MIT may have found a way around this problem, though . Their invention, called a "modulo camera," doesn't stop recording information once a pixel saturates its available bits. Instead, the modulo camera's pixels reset each time they're saturated during an exposure, and a count ...