![暗噪声伪影检测方法和装置](/CN/2008/8/26/images/200880130684.jpg)
基本信息:
- 专利标题: 暗噪声伪影检测方法和装置
- 申请号:CN200880130684.X 申请日:2008-08-08
- 公开(公告)号:CN102119400B 公开(公告)日:2017-10-31
- 发明人: 艾迪尔·阿巴斯 , 李振 , 路小安 , 克里斯蒂娜·古米拉
- 申请人: 汤姆逊许可证公司
- 申请人地址: 法国布洛尼-比扬古市
- 专利权人: 汤姆逊许可证公司
- 当前专利权人: 汤姆逊许可证公司
- 当前专利权人地址: 法国布洛尼-比扬古市
- 代理机构: 北京东方亿思知识产权代理有限责任公司
- 代理人: 鲁异
- 国际申请: PCT/US2008/009566 2008.08.08
- 国际公布: WO2010/016823 EN 2010.02.11
- 进入国家日期: 2011-02-01
- 主分类号: G06T7/00
- IPC分类号: G06T7/00 ; G06T5/00 ; H04N19/61 ; H04N19/85
The present invention involves detecting dark noise artifacts in coded images and video. Locations of artifacts in compressed pictures are found. A strength of the artifact per block is determined as is an overall dark noise artifact strength for each picture. Artifact detection and strength assignment is performed by analyzing candidate areas that could be prone to this type of artifact. Multiple features such as block variance, color information, luminance levels and location of the artifact could be used in this process. Also, median filtering may be used on the identified areas to eliminate isolated areas. A final artifact parameter for each picture can be assessed based on the total number of blocks that are classified as dark noise and also the strength of each macroblock.
公开/授权文献:
- CN102119400A 暗噪声伪影检测方法和装置 公开/授权日:2011-07-06
IPC结构图谱:
G | 物理 |
--G06 | 计算;推算;计数 |
----G06T | 一般的图像数据处理或产生 |
------G06T7/00 | 图像分析,例如从位像到非位像 |