公开(公告)号：US20140177717A1

公开(公告)日：2014-06-26

申请号：US13832799

申请日：2013-03-15

Applicant: BROADCOM CORPORATION

Inventor： Junlin Li ,  Alexander Garland MacInnis ,  Brad Albert Delanghe ,  Lei Zhang

IPC: H04N7/26

CPC classification number: H04N19/00909 ,  H04N19/136 ,  H04N19/159 ,  H04N19/40 ,  H04N19/86

Abstract: Various methods and systems are provided for reduction of I-pulsing artifacts. In one example, among others, a method includes modifying at least a portion of a picture to be encoded as an I picture based at least in part upon a picture that precedes the picture. The modification can reduce an I-pulsing artifact associated with the I picture. The modified picture is intra-coded for inclusion in a series of encoded pictures, which may then be transmitted. In another example, an encoder includes adaptive pre-processing circuitry configured to modify at least a portion of a first picture based at least in part upon a second picture that precedes the first picture in a series of video pictures. For example, the modification may be based upon coding noise associated with the preceding picture. Intra-encoding processing circuitry is configured to encode the modified picture as an I picture.

Abstract translation: 提供了各种方法和系统来减少I脉冲伪像。 在一个示例中，除其他之外，方法包括至少部分地基于图片之前的图片来修改要编码为I图片的图片的至少一部分。 该修改可以减少与I图像相关联的I脉冲伪影。 经修改的图像被内编码以包含在一系列编码图像中，然后可以传输它们。 在另一示例中，编码器包括自适应预处理电路，其被配置为至少部分地基于在一系列视频图像中的第一图像之前的第二图像来修改第一图片的至少一部分。 例如，修改可以基于与前一图像相关联的编码噪声。 内部编码处理电路被配置为将修改的图像编码为I图像。