Delay equalization in event-based vision sensors
By implementing delay circuits that adjust based on illumination levels, the delay inconsistencies in event-based vision sensors are addressed, enhancing data processing efficiency and consistency across pixels.
WO2021044299A1 Publication Date: 2021-03-11SONY ADVANCED VISUAL SENSING AG
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Patent Information
- Application Number
- PCT/IB2020/058143
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2019-09-04
- Filing Date
- 2020-09-01
- Publication Date
- 2021-03-11
AI Technical Summary
Technical Problem
Event-based vision sensors experience delays in generating events due to parasitic capacitance, which vary with light intensity, causing inconsistencies between pixels and complicating data processing, especially when combined with inertial measurement units.
Method used
The implementation of delay circuits that adjust delays based on illumination levels, using controlled capacitance, digital, or analog delay circuits, and a delay block that applies delays to event data readout, ensuring equalization across pixels.
Benefits of technology
This solution effectively equalizes delays between pixels, improving data processing efficiency and consistency, particularly in systems involving varying light conditions and inertial measurements.
✦ Generated by Eureka AI based on patent content.
Abstract
An event based pixel sensor system employing delay equalization between differently illuminated pixels.
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