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:
Aug. 06, 2024
Filed:
Jan. 05, 2022
Qualcomm Incorporated, San Diego, CA (US);
Wen-Chun Feng, New Taipei, TW;
Hsuan-Ming Liu, New Taipei, TW;
Hui Shan Kao, New Taipei, TW;
Hang-Wei Liaw, North District, TW;
Yawen Chi, Taoyuan, TW;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
The present disclosure provides systems, apparatus, methods, and computer-readable media that support improved image signal processing, particularly in low-light or high dynamic range (HDR) scenes. The image processing techniques may include performing two automatic exposure control (AEC) operations, in which a first AEC operation targets obtaining good conditions for autofocus (AF) operation, and a second AEC operation follows the AF operation and targets obtaining good conditions for an image capture. The image processing techniques may also include communication between the AEC operations and AF operations to coordinate the operations by locking and releasing exposure levels and focus positions as part of the image signal processing. In one aspect, a processing technique may include an AF measuring statistics from target, coordinating with AEC, and performing interleaving of a lock-and-resume state machine to achieve better AF result in challenging low-light or HDR scenes while maintaining an overall image quality.