Ati Technologies Ulc

Advanced Micro Devices Corporation

Ehsan Mirhadi

Gabor Sines

Edward A Harold

Khaled Mammou

Lei Zhang

Ihab Amer

Haibo Liu

Fabio Gulino

Ho Hin Lau

Yang Liu

Feng Pan

Ihab M A Amer

Wei Gao

Ying Luo

Crystal Yeong-Pian Sau

Shu-Hsien Wu

An encoding method is provided which includes receiving a plurality of images, obtaining values of elements in a portion of the images, sorting the elements according to different values of the elements, sorting the elements according to a number of occurrences of the different values and encoding the elements using a subset of the different values having corresponding numbers of occurrences that are higher than corresponding numbers of occurrences of other values. Examples also include a processing device and method for use with palette mode encoding in which the elements are a portion of pixels in images and the values are color values of the portion of pixels in the images.

Top palette colors selection using sorting for palette mode in video encoding

An encoder encodes pixels representative of a picture in a multimedia stream, generates a first approximate signature based on approximate values of pixels in a reconstructed copy of the picture, and transmits the encoded pixels and the first approximate signature. A decoder receives a first packet including the encoded pixels and the first approximate signature, decodes the encoded pixels, and transmits a first signal in response to comparing the first approximate signature and a second approximate signature generated based on approximate values of the decoded pixels. If a corrupted packet is detected, the multimedia application requests an intra-coded picture in response to the first approximate signature differing from the second approximate signature. The second signal instructs the decoder to bypass requesting an intra-coded picture and to continue decoding received packets in response to the first approximate signature being equal to the second approximate signature.

Method and apparatus for determining the severity of corruption in a picture

Growing community of inventors

Markham, Canada

Ehsan Mirhadi