公开(公告)号：US08665376B2

公开(公告)日：2014-03-04

申请号：US13857443

申请日：2013-04-05

Applicant: Texas Instruments Incorporated

Inventor： Manu Mathew ,  Shyam Jagannathan ,  Soyeb Noomohammed Nagori ,  Hrushikesh Tukaram Garud

IPC: H04N5/21

CPC classification number: H04N5/21 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  H04N19/51 ,  H04N19/567 ,  H04N19/573 ,  H04N19/577 ,  H04N19/85

Abstract: Several systems and methods for filtering noise from a picture in a picture sequence associated with video data are disclosed. In an embodiment, the method includes accessing a plurality of pixel blocks associated with the picture and filtering noise from at least one pixel block from among the plurality of pixel blocks. The filtering of noise from a pixel block from among the at least one pixel block includes identifying pixel blocks corresponding to the pixel block in one or more reference pictures associated with the picture sequence. Each identified pixel block is associated with a cost value. One or more pixel blocks are selected from among the identified pixel blocks based on associated cost values. Weights are assigned to the selected one or more pixel blocks and set of filtered pixels for the pixel block is generated based on the weights.

Abstract translation: 公开了用于从与视频数据相关联的图像序列中的图像中滤除噪声的几种系统和方法。 在一个实施例中，该方法包括访问与图像相关联的多个像素块，并从多个像素块中的至少一个像素块滤除噪声。 从所述至少一个像素块中的像素块的噪声的滤波包括​​识别与所述图像序列相关联的一个或多个参考图像中与所述像素块相对应的像素块。 每个识别的像素块与成本值相关联。 基于相关联的成本值，从所识别的像素块中选择一个或多个像素块。 将权重分配给所选择的一个或多个像素块，并且基于权重生成用于像素块的滤波像素的集合。

公开(公告)号：US20130271664A1

公开(公告)日：2013-10-17

申请号：US13857443

申请日：2013-04-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manu Mathew ,  Shyam Jagannathan ,  Soyeb Noomohammed Nagori ,  Hrushikesh Tukaram Garud

IPC: H04N5/21

CPC classification number: H04N5/21 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  H04N19/51 ,  H04N19/567 ,  H04N19/573 ,  H04N19/577 ,  H04N19/85

Abstract: Several systems and methods for filtering noise from a picture in a picture sequence associated with video data are disclosed. In an embodiment, the method includes accessing a plurality of pixel blocks associated with the picture and filtering noise from at least one pixel block from among the plurality of pixel blocks. The filtering of noise from a pixel block from among the at least one pixel block includes identifying pixel blocks corresponding to the pixel block in one or more reference pictures associated with the picture sequence. Each identified pixel block is associated with a cost value. One or more pixel blocks are selected from among the identified pixel blocks based on associated cost values. Weights are assigned to the selected one or more pixel blocks and set of filtered pixels for the pixel block is generated based on the weights.

Abstract translation: 公开了用于从与视频数据相关联的图像序列中的图像中滤除噪声的几种系统和方法。 在一个实施例中，该方法包括访问与图像相关联的多个像素块，并从多个像素块中的至少一个像素块滤除噪声。 从所述至少一个像素块中的像素块的噪声的滤波包括​​识别与所述图像序列相关联的一个或多个参考图像中与所述像素块相对应的像素块。 每个识别的像素块与成本值相关联。 基于相关联的成本值，从所识别的像素块中选择一个或多个像素块。 将权重分配给所选择的一个或多个像素块，并且基于权重生成用于像素块的滤波像素的集合。