公开(公告)号：US20190355101A1

公开(公告)日：2019-11-21

申请号：US16469272

申请日：2017-01-12

Applicant: INTEL CORPORATION

Inventor： Shifeng Chen ,  Yong Jiang ,  Danyu Bi

IPC: G06T5/00 ,  G06T7/11 ,  H04N5/232 ,  G06T5/20

Abstract: A system and method for refocusing an image including determining a point spread function (PSF) according to region of interest (ROI) and pixel depth, and converting the PSF to a gradient domain including differentiating the PSF to reduce nonzero elements in the PSF. The technique spreads intensity of pixels into a circle of confusion per the differentiated PSF. A shape of an optical system or aperture of the imaging device may be considered.

公开(公告)号：US11282176B2

公开(公告)日：2022-03-22

申请号：US16469272

申请日：2017-01-12

Applicant: INTEL CORPORATION

Inventor： Shifeng Chen ,  Yong Jiang ,  Danyu Bi

IPC: G06K9/40 ,  G06T5/00 ,  G06T7/11 ,  H04N5/232 ,  G06T5/20 ,  H04N5/357

Abstract: A system and method for refocusing an image including determining a point spread function (PSF) according to region of interest (ROI) and pixel depth, and converting the PSF to a gradient domain including differentiating the PSF to reduce nonzero elements in the PSF. The technique spreads intensity of pixels into a circle of confusion per the differentiated PSF. A shape of an optical system or aperture of the imaging device may be considered.