Method and apparatus for calculating a luminance value of a region of interest
US11205088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/72
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiment of the present application provides a method and an apparatus for calculating a luminance value of a region of interest. The method includes: determining a region of interest where an object of interest is located in a current video frame, and determining a state of the object of interest; dividing the region of interest into a preset number of sub-region blocks, and obtaining a luminance value of each of the sub-region blocks; determining a weight for the luminance value of each of the sub-region blocks in the region of interest according to correspondences between preset states of the object of interest and weights for luminance values of the sub-region blocks in the region of interest, and the state of the object of interest; wherein, a preset state of the object of interest corresponds to the preset number of weights for luminance values; and integrating luminance values of the sub-region blocks in the region of interest according to the weights for luminance values of the sub-region blocks to obtain the luminance value of the region of interest. With the solution provided by embodiments of the present application, the luminance value of the region of interest where …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.