公开(公告)号：US20240087169A1

公开(公告)日：2024-03-14

申请号：US17931499

申请日：2022-09-12

Applicant: ATI Technologies ULC

Inventor： Isabelle Elizabeth Knott

IPC: G06T9/00 ,  H04N19/70

CPC classification number: G06T9/00 ,  H04N19/70

Abstract: An apparatus and method for performing efficient video transmission. In various implementations, a computing system includes a transmitter sending a video stream to a receiver over a network. Before encoding a video frame, the transmitter identifies a first set of one or more macroblocks of the video frame that includes text. The transmitter replaces pixel color information with pixel distance information for the first set of one or more macroblocks. The transmitter inserts, in metadata information, indications that identify the first set of one or more macroblocks and specify the color values of pixels in the first set of one or more macroblocks. The transmitter encodes the video frame and sends it along with the metadata information to the receiver. The receiver uses the metadata information to reproduce the original pixel colors and maintain text clarity of an image to be depicted on a display device.

公开(公告)号：US12106527B2

公开(公告)日：2024-10-01

申请号：US17931499

申请日：2022-09-12

Applicant: ATI Technologies ULC

Inventor： Isabelle Elizabeth Knott

IPC: G06T9/00 ,  H04N19/70

CPC classification number: G06T9/00 ,  H04N19/70

Abstract: An apparatus and method for performing efficient video transmission. In various implementations, a computing system includes a transmitter sending a video stream to a receiver over a network. Before encoding a video frame, the transmitter identifies a first set of one or more macroblocks of the video frame that includes text. The transmitter replaces pixel color information with pixel distance information for the first set of one or more macroblocks. The transmitter inserts, in metadata information, indications that identify the first set of one or more macroblocks and specify the color values of pixels in the first set of one or more macroblocks. The transmitter encodes the video frame and sends it along with the metadata information to the receiver. The receiver uses the metadata information to reproduce the original pixel colors and maintain text clarity of an image to be depicted on a display device.