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：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.