Pixel design with temporal analysis capabilities for scene interpretation

摘要

Disclosed is a sensor device with pixels that in addition to sensing an image, performs captured image or scene analysis. The device saves further image processing downstream, is characterized by minimal charge movements and reduces a large fraction (about 90%) of the consumed electric energy as compared to the existing devices.

主权项

1. A pixel of an image sensor, said pixel comprising:
a photosensitive area; at least one embedded memory storing at least one historical voltage threshold for said pixel; a low pass filter; and wherein a current voltage level (Vp) of the pixel represents light intensity on said pixel; and wherein an output of the low pass filter is used to update at least one voltage threshold according to the current voltage level (Vp).