US 11,947,107 B2
Method and device for recovering image passing through display
Hirotake Cho, Kanagawa-Ken (JP)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Mar. 17, 2021, as Appl. No. 17/204,124.
Application 17/204,124 is a continuation of application No. PCT/CN2018/107739, filed on Sep. 26, 2018.
Prior Publication US 2021/0199952 A1, Jul. 1, 2021
Int. Cl. G02B 27/00 (2006.01); G02B 5/20 (2006.01); G02B 13/24 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01)
CPC G02B 27/005 (2013.01) [G02B 5/208 (2013.01); G02B 13/24 (2013.01); G06T 5/002 (2013.01); G06T 5/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for recovering an image passing through a display and taken by an image sensor disposed on a rear side of the display, the method comprising:
acquiring the image taken by the image sensor;
obtaining a plurality of point spread functions corresponding one-to-one to a plurality of dots arranged in a predetermined pattern on a calibration chart; and
recovering the image by performing a de-convolution of the image based on the plurality of point spread functions.