Title :
A QVGA 143dB dynamic range asynchronous address-event PWM dynamic image sensor with lossless pixel-level video compression
Author :
Posch, Christoph ; Matolin, Daniel ; Wohlgenannt, R.
Author_Institution :
Austrian Inst. of Technol., Vienna, Austria
Abstract :
A 0.18¿m CIS contains a QVGA array of autonomous pixels that individually detect illumination changes and communicate new gray levels that are PWM encoded after each detected change, ideally realizing optimal lossless pixel-level video compression. Readout is frame-free 18b parallel AER. SNR of >56dB and infra-scene DRs of 143dB static and 125dB at 30fps equivalent have been achieved.
Keywords :
data compression; image sensors; pulse width modulation; video coding; CIS; PWM encoding; QVGA; asynchronous address-Event PWM dynamic image sensor; infra-scene DR; optimal lossless pixel-level video compression; parallel AER; size 0.18 mum; Circuits; Detectors; Dynamic range; Image sensors; Layout; Lighting; Pixel; Pulse width modulation; Sensor arrays; Video compression;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5433973
