Title:
HDR IMAGE GENERATION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/176925
Kind Code:
A1
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.
Inventors:
LI XIN (CN)
SONG MINGLI (CN)
CHEN KE (CN)
SONG MINGLI (CN)
CHEN KE (CN)
Application Number:
PCT/CN2017/117106
Publication Date:
October 04, 2018
Filing Date:
December 19, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06T5/50; G06T7/20
Foreign References:
| CN106056629A | 2016-10-26 | |||
| CN105894484A | 2016-08-24 | |||
| US20140307044A1 | 2014-10-16 |
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (CN)
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