Time of flight sensor with subframe compression and method
US9140795B2 · kind B2 · utility
15Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | Sep 20, 2012 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | May 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4863
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A demodulation image sensor, such as used in time of flight (TOF) cameras, extracts all storage- and post-processing-related steps from the pixels to another array of storage and processing elements (proxels) on the chip. The pixel array has the task of photo-detection, first processing and intermediate storage to create subframes, while the array of storage and processing elements provides accumulation into frames. Particularly, sampled values of several subframes are summed in a compressed manner. Possible compression is to use exponential function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.