The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2021
Filed:
Apr. 12, 2019
Hangzhou Hikvision Digital Technology Co., Ltd., Zheijiang, CN;
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, CN;
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 the object of interest is located can be obtained with increased accuracy.