公开(公告)号：US20190158836A1

公开(公告)日：2019-05-23

申请号：US15818114

申请日：2017-11-20

Applicant: ATI TECHNOLOGIES ULC

Inventor： Ihab AMER ,  Fabio GULINO ,  Edward HAROLD ,  Boris IVANOVIC ,  Haibo LIU ,  Ho Hin LAU ,  Gabor SINES ,  Catalin BEJU

IPC: H04N19/127 ,  H04N19/182 ,  H04N19/139

CPC classification number: H04N19/127 ,  H04N19/132 ,  H04N19/137 ,  H04N19/139 ,  H04N19/154 ,  H04N19/172 ,  H04N19/182

Abstract: An encoder of a multimedia system encodes data representative of each image in a video stream to form a bitstream that is transmitted over a network to a decoder that decodes the bitstream and provides the decoded information to a multimedia application for display to the user. As consecutive images may have nearly identical pixel values, the multimedia system detects pixel value variations between consecutive images that are below a specified threshold to reduce active processing on such pictures, which includes, for example, encoding, decoding, and post-processing. The multimedia system either selectively encodes or selectively processes the current image that has pixel values that vary from an immediately preceding image within the specified threshold.