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meandering
I wonder what the bandwidht of the sense of touch is.
Back-of-the-envelope estimate:
Update rate of 100Hz is probably adequate.
Sampling depth: 8 bits of pressure, 8 bits of temperature, 8 bits of pain.
Resolution: the highest is on the fingertips, tongue, face. Let's say that 600dpi will work on those regions, and most of the body is content with 50dpi. Let's say, 50 square inches of high-res, and 3000 of low-res.
rate * depth * resolution = 6x10^12 bits/second. That looks like a good upper bound for full-body tactile sensory transmission. I bet a simple redundancy compressor could take a big chunk of that, and a perceptual coder is probably reasonably easy.
Back-of-the-envelope estimate:
Update rate of 100Hz is probably adequate.
Sampling depth: 8 bits of pressure, 8 bits of temperature, 8 bits of pain.
Resolution: the highest is on the fingertips, tongue, face. Let's say that 600dpi will work on those regions, and most of the body is content with 50dpi. Let's say, 50 square inches of high-res, and 3000 of low-res.
rate * depth * resolution = 6x10^12 bits/second. That looks like a good upper bound for full-body tactile sensory transmission. I bet a simple redundancy compressor could take a big chunk of that, and a perceptual coder is probably reasonably easy.
no subject
The transducers, are a problem everywhere. And who wants a jack in their head without a much more reliable security system than any recently implemented?
The point of this exercise, incidentally, was to debunk the meme that VR users would drop haptics in order to save bandwidth. In any sensible situation, a small degradation in visuals will more than cover the entire bandwidth cost of haptics.
no subject