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公开(公告)号：US10778915B2
公开(公告)日：2020-09-15
申请号：US16435881
申请日：2019-06-10
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Yi-Lei Chen
Abstract: A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.
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公开(公告)号：US10368014B2
公开(公告)日：2019-07-30
申请号：US15252671
申请日：2016-08-31
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Yi-Lei Chen
Abstract: A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.
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