Patent ID: 11956441
Assignee: ATI TECHNOLOGIES ULC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method of encoding a video stream, the method comprising:
encoding a current frame of video acquired from a first scene or a first point of view;
generating, for the current frame, a perceptual indicator based on an array of values generated after the current frame is encoded, the array of values comprising a first set of statistical values and a second set of statistical values, different from the first set of statistical values, wherein the first set of statistical values of the array of values and the second set of statistical values of the array of values are determined from values of pixels of the current frame and generated after the current frame is encoded;
identifying the current frame as a frame which comprises video acquired from the first scene or the first point of view;
comparing the perceptual indicator of the current frame to perceptual indicators of previously encoded reference frames;
when the perceptual indicator of the current frame matches a perceptual indicator of one of the previously encoded reference frames, encoding the current frame using the one previously encoded reference frame; and
when the perceptual indicator of the current frame does not match any of the perceptual indicators of the previously encoded reference frames, encoding the current frame without using one of the previously encoded reference frames.