基本信息:
- 专利标题: DIGITAL IMAGE NOISE REDUCTION
- 专利标题(中):数字图像噪声减少
- 申请号:PCT/FR2005000897 申请日:2005-04-13
- 公开(公告)号:WO2005122086A3 公开(公告)日:2006-12-21
- 发明人: MOREL JEAN-MICHEL , COLL BARTOMEU , BUADES ANTONIO
- 申请人: CENTRE NAT RECH SCIENT , ECOLE NORM SUPERIEURE CACHAN , UNIV ILLES BALEARS , MOREL JEAN-MICHEL , COLL BARTOMEU , BUADES ANTONIO
- 专利权人: CENTRE NAT RECH SCIENT,ECOLE NORM SUPERIEURE CACHAN,UNIV ILLES BALEARS,MOREL JEAN-MICHEL,COLL BARTOMEU,BUADES ANTONIO
- 当前专利权人: CENTRE NAT RECH SCIENT,ECOLE NORM SUPERIEURE CACHAN,UNIV ILLES BALEARS,MOREL JEAN-MICHEL,COLL BARTOMEU,BUADES ANTONIO
- 优先权: FR0404837 2004-05-05
- 主分类号: G06T5/00
- IPC分类号: G06T5/00 ; G06K9/40 ; G06T5/50 ; H04N1/409
摘要:
The invention concerns image data processing, through noise reduction comprising the following steps: associating a learning zone (ZA) with a reference point (Pref) of the image (IM); for each variable point (PC, PC', ) of the learning zone, evaluating a distance (d, d', ) between: values of points in a first window (f1) of the image, centered on the reference point, and values of points in a second window (f2, f'2, ), of similar format as the format of the first window and centered on the variable point; repeating said distance calculation for all the points of the learning zone as successive variable points and estimating an average value to assign to the reference point, said average being weighted on the basis of the distances evaluated for each variable point.
摘要(中):
本发明涉及通过降噪的图像数据处理,包括以下步骤:将学习区域(ZA)与图像(IM)的参考点(Pref)相关联; 对于学习区域的每个可变点(PC,PC'),评估以下之间的距离(d,d'):以参考点为中心的图像的第一窗口(f1)中的点的值和值 (f2,f'2,)中的点与第一窗口的格式类似,并以可变点为中心; 将所述学习区域的所有点的所述距离计算重复为连续可变点,并且估计分配给参考点的平均值,所述平均值基于针对每个可变点评估的距离进行加权。
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 |
------G06T5/00 | 图像的增强或复原,如从位像到位像地建立一个类似的图形 |