Imaging devices with image transform circuitry for improved motion detection
US12294790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Aug 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device may include an image sensor that generates frames of image data in response to incident light with an array of image pixels, and processing circuitry that processes the image data. The processing circuitry may include a transformation circuit that applies transforms to subsampled frames of image data that are generated using a subset of the image pixels to produce transform values, and a comparator circuit that compares the transform values. The processing circuitry may determine that motion has occurred between sequential frames if a difference between a first transform value corresponding to a first image frame and a second transform value corresponding to a second image frame exceeds a threshold value. In response to determining that motion has occurred, the image sensor may generate full-frame image data using all of the pixels of the array of image pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.