The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Mar. 16, 2023
Cista System Corp., Grand Cayman, KY;
ChingJu Hsiao, Tainan, TW;
Zhaojian Li, Fremont, CA (US);
Cista System Corp., Grand Cayman, KY;
Abstract
This application describes methods and systems for dark shading calibration and correction. An example method may include configuring an image sensor into a plurality of sensor states to capture a plurality of dark images, determining a dark current distribution on each of the plurality of dark images captured by the image sensor to obtain a plurality of dark current distributions respectively corresponding to the plurality of sensor states, storing the plurality of dark current distributions in a memory associated with the image sensor, capturing an image by the image sensor at a first sensor state, determining a first dark current distribution for the first sensor state of the image sensor based on the plurality of dark current distributions stored in the memory, and offsetting dark current noise on the image based on the first dark current distribution for the first sensor state of the image sensor.