公开(公告)号：US11587219B2

公开(公告)日：2023-02-21

申请号：US17051728

申请日：2018-09-06

Applicant: GOERTEK INC.

Inventor： Xinxin Han ,  Zhiyong Zhao ,  Nanjing Dong ,  Debo Sun

IPC: G06T7/00 ,  G06T7/136 ,  G06T7/62 ,  G06T7/11 ,  G06T7/66 ,  G06T7/13 ,  G01N21/88 ,  G09G5/10 ,  H04N9/31

Abstract: Provided are a method and an apparatus for detecting pixel defect of optical module, and a device, where the method includes: graying an image obtained by imaging a test binary image by an optical module in a darkroom environment to obtain a first grayscale image; determining a first grayscale area and a second grayscale area corresponding to two gray levels in the test binary image from the first grayscale image; determining a pixel point not matching a grayscale feature of respective grayscale region from the first grayscale area and the second grayscale area respectively as a pixel defect point; and determining the pixel defect of the optical module according to the pixel defect point. The technical solution provided in the present disclosure can detect accurately a pixel defect of an optical module which is advantageous in optimizing the processing technology of the optical module.

公开(公告)号：US11153544B2

公开(公告)日：2021-10-19

申请号：US17058619

申请日：2018-09-06

Applicant: GOERTEK INC.

Inventor： Xinxin Han ,  Zhiyong Zhao ,  Nanjing Dong ,  Debo Sun

IPC: H04N9/31 ,  H04N9/73

Abstract: Provided are a method and an apparatus for correcting a color convergence error, and a device. The method includes: controlling a projection system to project a first test pattern containing three sets of monochromatic test points and a second test pattern containing three sets of R, G, and B test points, to collect a first projection image and a second projection image on the projection screen; acquiring a first center-of-mass coordinate and a second center-of-mass coordinate corresponding to projection image points on the first projection image and the second projection image; calculating color noises corresponding to R, G, and B according to the first center-of-mass coordinate and the second center-of-mass coordinate; calculating color coordinates corresponding to the R, G, and B according to the color noises corresponding to the R, G, and B and the second center-of-mass coordinate; and adjusting an assembly parameter of the projection system.

公开(公告)号：US11153502B2

公开(公告)日：2021-10-19

申请号：US16976745

申请日：2019-04-09

Applicant: GOERTEK INC.

Inventor： Xinxin Han ,  Zhiyong Zhao ,  Nanjing Dong ,  Debo Sun

IPC: H04N5/235 ,  H04N9/04

Abstract: Provided are a method and an apparatus for adjusting an exposure time of a camera and a device, where the method includes: controlling the camera to collect an imaging light spot of an imaging component with a first exposure time; obtaining an energy value received when the camera collecting the imaging light spot; if the energy value is not within a set energy range, obtaining a curve parameter corresponding to an exposure time-energy curve according to the energy value and the first exposure time; calculating an estimated exposure time corresponding to an optimal energy value according to the curve parameter; and updating the first exposure time with the estimated exposure time corresponding to the optimal energy value. The technical solution provided in the present disclosure can adjust the exposure time of the camera to a reasonable value so as to improve the accuracy and reliability of light spot analysis.