4 ms·
Ah, so you are saying the quantanization noise can't be averaged out, as with decimation after an ADC.
by madengr 8y ago
Ah, so you are saying the quantanization noise can't be averaged out, as with decimation after an ADC.
- dreamcompiler 8y agoIt could, but you'd have to start with a sensor that had both a high number of bits per sample and super-high spatial frequency. If you had such a sensor, there would be no point in decimating; you'd just use the samples the sensor gave you directly. The point with decimating is to sacrifice some spatial resolution for an increase in bits-per-sample from a low-bps (but high-frequency) sensor. This is done routinely for audio signals but it would be a lot more tricky with a two-dimensional signal. Not impossible, but it would require processing elements between the pixels to diffuse the error properly without losing information.