Reading events from an array of event-based image sensors and pixel circuits
CN115066885BActive Publication Date: 2026-04-03PROFESSER
View PDF -1 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-02-12
- Publication Date
- 2026-04-03
AI Technical Summary
Technical Problem
Existing image sensors are inefficient at detecting rapid motion and generate a large amount of redundant data, resulting in high post-processing costs and an inability to extract motion information quickly and efficiently.
Method used
By employing an event-based vision sensor, pixel data is sampled through selection circuits, control circuits, and interface circuits. Combined with latch and timer circuits, the risk of readout lockout is reduced, enabling fast and efficient data readout.
Benefits of technology
It achieves fast and efficient motion detection, reduces post-processing costs, and improves the time accuracy of data processing and the dynamic range operation within the scene.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115066885B_ABST
Abstract
A circuit includes a selection circuit electrically coupled to a pixel of a line of an event vision sensor. The selection circuit is configured to receive an activation signal from an active pixel of the line, generate an acknowledgment signal in response to receiving the activation signal, and send the acknowledgment signal to the pixel of the line. The circuit also includes a control circuit electrically coupled to the pixel of the line that is furthest from the selection circuit. The control circuit is configured to receive the acknowledgment signal from the selection circuit and generate a process readout signal in response to receiving the acknowledgment signal. The circuit further includes an interface circuit electrically coupled to the pixel of the line and configured to reset the selection circuit, the control circuit, and the pixel of the line upon receiving the process readout signal.
Need to check novelty before this filing date? Find Prior Art