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1. (WO2018176925) HDR IMAGE GENERATION METHOD AND APPARATUS

Pub. No.:    WO/2018/176925    International Application No.:    PCT/CN2017/117106
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Dec 20 00:59:59 CET 2017
IPC: G06T 5/50
G06T 7/20
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LI, Xin
李欣
SONG, Mingli
宋明黎
CHEN, Ke
陈柯
Title: HDR IMAGE GENERATION METHOD AND APPARATUS
Abstract:
The present application relates to an HDR image generation method and apparatus. The method comprises: acquiring a first motion region and a second motion region of an image sequence; determining, according to a comparison result of a first ratio and a first threshold value and a comparison result of a second ratio and the first threshold value, a target motion region; obtaining, according to first weight values and second weight values, a first HDR image; determining, according to a comparison result of the sum of the first weight values and the sum of the second weight values, a reference image; performing brightness adjustment processing on the first HDR image by means of the reference image to obtain an adjusted first HDR image; and based on a connected region, fusing the adjusted first HDR image with the reference image or a first non-reference image to obtain a second HDR image. Thus, a motion region, of a certain area, in a target scene can be detected, thereby extending the scope of the motion region, namely, a relatively large motion region may be allowed to exist in the scene. Moreover, a ghost image of the adjusted first HDR image is removed, thereby obtaining the second HDR image without the ghost image.