公开(公告)号：US11606574B2

公开(公告)日：2023-03-14

申请号：US16882819

申请日：2020-05-26

Applicant: Apple Inc.

Inventor： Dazhong Zhang ,  Peikang Song ,  Beibei Wang ,  Giribalan Gopalan ,  Albert E. Keinath ,  Christopher M. Garrido ,  David R. Conrad ,  Hsi-Jung Wu ,  Ming Jin ,  Hang Yuan ,  Xiaohua Yang ,  Xiaosong Zhou ,  Vikrant Kasarabada ,  Davide Concion ,  Eric L. Chien ,  Bess C. Chan ,  Karthick Santhanam ,  Gurtej Singh Chandok

IPC: H04N19/507 ,  H04N19/65

Abstract: Techniques are disclosed for coding video data in which frames from a video source are partitioned into a plurality of tiles of common size, and the tiles are coded as a virtual video sequence according to motion-compensated prediction, each tile treated as having respective temporal location of the virtual video sequence. The coding scheme permits relative allocation of coding resources to tiles that are likely to have greater significance in a video coding session, which may lead to certain tiles that have low complexity or low motion content to be skipped during coding of the tiles for select source frames. Moreover, coding of the tiles may be ordered to achieve low coding latencies during a coding session.

公开(公告)号：US20250111541A1

公开(公告)日：2025-04-03

申请号：US18477256

申请日：2023-09-28

Applicant: Apple Inc.

Inventor： Frederic Cao ,  Xiaohua Yang ,  Hao Pan ,  Giribalan Gopalan

IPC: G06T9/00 ,  G06T3/40 ,  H04N7/01

Abstract: This disclosure describes techniques to concurrently capture several redundant (e.g., overlapping) video image streams on electronic devices having multiple image capture devices (e.g., on mobile devices having two or more digital video cameras). The techniques described herein advantageously capture at least one “compressed” video image stream, such that the overall multi-video image stream capture process uses significantly less power than capturing each stream independently in an “uncompressed” fashion. These techniques provide an electronic device with the ability to provide a user with more video streams that are of a higher frame rate and/or higher quality for a longer capture time-without exceeding the device's thermal limits. In particular, a “compressed” amount of image information may be processed and saved from at least one camera at capture time, and then deferred processing operations may be used to reconstruct any missing information and produce the higher frame rate/higher quality video image streams.