Analog Lab: Analog signal processing for next generation image sensors

In collaboration with Prof. Fossum, we are developing signal processing for the next generation of solid-state imagers, whose dynamic range, spatial resolution and temporal resolution are orders of magnitude higher than today's imagers.

The data rate of these next generation imagers will be about 1000 times higher than that of today's imagers. To process this vast amount of information, we are building specialized electronics that are fast and extremely power efficient. Low power is necessary so as to avoid overheating and to minimize any electrical and thermal activity that might interfere with the sensor's operation.

A system for sensing, processing and classifying scalp electroencephalography (EEG) signals
(a) Current-day imagers are based on pixels, which are large and have limited resolution and dynamic range (b) Next-generation imagers will be based on sub-pixel units known as jots . Jots are more sensitive than pixels and are polled more frequently as well. They will generate large amounts of data, which must be processed with ultra-low power integrated circuits.