公开(公告)号：US20190110053A1

公开(公告)日：2019-04-11

申请号：US15727517

申请日：2017-10-06

Applicant: QUALCOMM INCORPORATED

Inventor： MEGHAL VARIA ,  SERAG GADELRAB ,  WESLEY JAMES HOLLAND ,  JOSEPH CHEUNG ,  DAM BACKER ,  TOM LONGO

IPC: H04N19/162 ,  H04N19/12 ,  H04N5/917 ,  H04N19/172 ,  H04N19/46

Abstract: An exemplary method for intelligent compression uses a foveated-compression approach. First, the location of a fixation point within an image frame is determined. Next, the image frame is sectored into two or more sectors such that one of the two or more sectors is designated as a fixation sector and the remaining sectors are designated as foveation sectors. A sector may be defined by one or more tiles within the image frame. The fixation sector includes the particular tile that contains the fixation point and is compressed according to a lossless compression algorithm. The foveation sectors are compressed according to lossy compression algorithms. As the locations of foveation sectors increase in angular distance from the location of the fixation sector, a compression factor may be increased.

公开(公告)号：US20200092564A1

公开(公告)日：2020-03-19

申请号：US16588818

申请日：2019-09-30

Applicant: QUALCOMM INCORPORATED

Inventor： MEGHAL VARIA ,  SERAG GADELRAB ,  WESLEY JAMES HOLLAND ,  JOSEPH CHEUNG ,  DAM BACKER ,  TOM LONGO

IPC: H04N19/162 ,  H04N19/167 ,  H04N19/174 ,  H04N19/115 ,  H04N19/119 ,  G06F12/02 ,  H04N19/12 ,  H04N19/172 ,  H04N19/46 ,  H04N5/917

Abstract: An exemplary method for intelligent compression uses a foveated-compression approach. First, the location of a fixation point within an image frame is determined. Next, the image frame is sectored into two or more sectors such that one of the two or more sectors is designated as a fixation sector and the remaining sectors are designated as foveation sectors. A sector may be defined by one or more tiles within the image frame. The fixation sector includes the particular tile that contains the fixation point and is compressed according to a lossless compression algorithm. The foveation sectors are compressed according to lossy compression algorithms. As the locations of foveation sectors increase in angular distance from the location of the fixation sector, a compression factor may be increased.

公开(公告)号：US20200250097A1

公开(公告)日：2020-08-06

申请号：US16269440

申请日：2019-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： WESLEY JAMES HOLLAND ,  Bohuslav Rychlik ,  Andrew Edmund Turner ,  George Patsilaras ,  Jeffrey Shabel ,  Simon Peter William Booth

IPC: G06F12/0862 ,  G06F12/1009 ,  G06T1/60

Abstract: An intelligent tile-based prefetching solution executed by a compression address aperture services linearly addressed data requests from a processor to memory stored in a memory component having a tile-based address structure. The aperture monitors tile reads and seeks to match the tile read pattern to a predefined pattern. If a match is determined, the aperture executes a prefetching algorithm uniquely and optimally associated with the predefined tile read pattern. In this way, tile overfetch is mitigated while the latency on first line data reads is reduced.