公开(公告)号：US20240406588A1

公开(公告)日：2024-12-05

申请号：US18329378

申请日：2023-06-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Kaijun Feng ,  Andreas Suess

IPC: H04N25/47 ,  H04N19/172 ,  H04N25/77

Abstract: Event vision sensors with event data compression (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an event vision sensor includes a plurality of event vision pixels. Each event vision pixel of the plurality is configured to generate event data based on events indicated in incident light received from an external scene, and includes a compression circuit configured to compress the event data prior to readout of the event data from the event vision pixel. Each compression circuit can include a time aggregation circuit that is configured to track a number of the events detected by the corresponding event vision pixel over a specified timing window. The compressed event data can be read out from the event vision sensors and used to generate a pseudo-frame. The event vision sensor can optionally perform frame-level compression on the pseudo-frame.