公开(公告)号：US20220256178A1

公开(公告)日：2022-08-11

申请号：US17539580

申请日：2021-12-01

Applicant: Imagination Technologies Limited

Inventor： Jeffery Thomas Bond ,  Gregory Alan Clark ,  Selina Hopton ,  Simon Fenney

IPC: H04N19/436 ,  H04N19/176 ,  H04N19/184

Abstract: A method of data decompression includes receiving compressed pixel data substantially in raster scan order and determining a number of bits of compressed data that corresponds to one row of pixels. Then, for each group of pixels in the row, the method identifies a block-based decoding scheme for the group of pixels and decodes the group of pixels using the identified scheme.

公开(公告)号：US12160597B2

公开(公告)日：2024-12-03

申请号：US17539580

申请日：2021-12-01

Applicant: Imagination Technologies Limited

Inventor： Jeffery Thomas Bond ,  Gregory Alan Clark ,  Selina Hopton ,  Simon Fenney

IPC: H04N19/436 ,  H04N19/176 ,  H04N19/184

Abstract: A method of data decompression includes receiving compressed pixel data substantially in raster scan order and determining a number of bits of compressed data that corresponds to one row of pixels. Then, for each group of pixels in the row, the method identifies a block-based decoding scheme for the group of pixels and decodes the group of pixels using the identified scheme.

公开(公告)号：US20220256164A1

公开(公告)日：2022-08-11

申请号：US17539391

申请日：2021-12-01

Applicant: Imagination Technologies Limited

Inventor： Jeffery Thomas Bond ,  Gregory Alan Clark ,  Selina Hopton ,  Simon Fenney

IPC: H04N19/136 ,  H04N19/119 ,  H04N19/176 ,  H04N19/42

Abstract: A method of data compression includes receiving input pixel data for a block of data in raster scan order where the pixel data comprises at least red, green and blue channel data for each pixel. The pixel data is compressed using a block-based encoding scheme and then the compressed pixel data is output substantially in raster scan order.