公开(公告)号：US11477493B2

公开(公告)日：2022-10-18

申请号：US15671595

申请日：2017-08-08

Applicant: GOOGLE INC.

Inventor： Ruijie Xu ,  Dake He

IPC: H04N19/124 ,  H04N19/91 ,  H04N19/44 ,  H04N19/60 ,  H04N19/176 ,  H04N19/129 ,  H04N19/159

Abstract: Systems and methods are disclosed for entropy coding of blocks of image data. For example, methods may include partitioning a block of video data into a plurality of groups of elements; decoding, using an entropy decoder, data from an encoded bitstream to obtain, using a first scan order, elements of a first group from the plurality of groups of elements, wherein the first group includes elements forming a triangle in a corner of the block, and wherein the triangle includes elements of a first row and elements of a first column of the block; determining, based on the elements of the first group, a second scan order for a second group from the plurality of groups of elements; and decoding, using the entropy decoder, data from the encoded bitstream to obtain, using the second scan order, elements of the second group from the plurality of groups of elements.

公开(公告)号：US20190045226A1

公开(公告)日：2019-02-07

申请号：US15671595

申请日：2017-08-08

Applicant: GOOGLE INC.

Inventor： Ruijie Xu ,  Dake He

IPC: H04N19/91 ,  H04N19/124 ,  H04N19/44 ,  H04N19/60

Abstract: Systems and methods are disclosed for entropy coding of blocks of image data. For example, methods may include partitioning a block of video data into a plurality of groups of elements; decoding, using an entropy decoder, data from an encoded bitstream to obtain, using a first scan order, elements of a first group from the plurality of groups of elements, wherein the first group includes elements forming a triangle in a corner of the block, and wherein the triangle includes elements of a first row and elements of a first column of the block; determining, based on the elements of the first group, a second scan order for a second group from the plurality of groups of elements; and decoding, using the entropy decoder, data from the encoded bitstream to obtain, using the second scan order, elements of the second group from the plurality of groups of elements.