公开(公告)号：US20240087279A1

公开(公告)日：2024-03-14

申请号：US18511462

申请日：2023-11-16

Applicant: QUALCOMM Incorporated

Inventor： Edwin Chongwoo PARK ,  Soman Ganesh NIKHARA ,  Bapineedu Chowdary GUMMADI ,  Pradeep VEERAMALLA ,  Ravi Shankar KADAMBALA

IPC: G06V10/25 ,  G06F17/18 ,  H04N23/71 ,  H04N23/73

CPC classification number: G06V10/25 ,  G06F17/18 ,  H04N23/71 ,  H04N23/73

Abstract: Methods, systems, computer-readable media, and apparatuses for region-of-interest (ROI) automatic gain or exposure control are presented. In one example, a method includes receiving a first image from an image sensor captured with a first field of view (FOV) and comprising a first plurality of pixels, receiving a second image from the image sensor captured with a second FOV and comprising a second plurality of pixels, determining an ROI in the second image, the ROI comprising a subset of the second plurality of pixels in the second image, determining an ROI weight for the ROI in the second image, determining statistics based on the first plurality of pixels in the first image, the subset of the second plurality of pixels in the second image, and the ROI weight for the ROI in the second image, and adjusting a gain or exposure setting for the image sensor based on the statistics.

公开(公告)号：US20230239590A1

公开(公告)日：2023-07-27

申请号：US18000814

申请日：2021-08-06

Applicant: QUALCOMM Incorporated

Inventor： Loic Francois SEGAPELLI ,  Wenbin WANG ,  Nan CUI ,  Soman Ganesh NIKHARA ,  Nikunj Dahyabhai PATEL ,  Pradeep VEERAMALLA ,  Ankita Anil Kumar CHAUDHA

IPC: H04N25/585 ,  H04N25/702

CPC classification number: H04N25/585 ,  H04N25/702

Abstract: Systems, methods, and non-transitory media are provided for automatic exposure control. An example method can include receiving pixel values captured by a photosensor pixel array (PPA) of an image sensor, wherein one or more pixel values from the pixel values correspond to one or more sensitivity-biased photosensor (SBP) pixels in the PPA and one or more saturated pixel values from the pixel values correspond to one or more other photosensor pixels in the PPA; determining, based on the one or more pixel values, an actual pixel value for the one or more pixel values and/or the one or more saturated pixel values; determining an adjustment factor for at least one of the pixel values based on the actual pixel value and a target exposure value; and based on the adjustment factor, correcting an exposure setting associated with the image sensor and/or at least one of the pixel values.

公开(公告)号：US20210110190A1

公开(公告)日：2021-04-15

申请号：US17030113

申请日：2020-09-23

Applicant: QUALCOMM Incorporated

Inventor： Edwin Chongwoo PARK ,  Soman Ganesh NIKHARA ,  Bapineedu Chowdary GUMMADI ,  Pradeep VEERAMALLA ,  Ravi Shankar KADAMBALA

IPC: G06K9/32 ,  G06F17/18 ,  H04N5/235

Abstract: Methods, systems, computer-readable media, and apparatuses for region-of-interest automatic gain or exposure control are presented. One example method includes receiving an image from an image sensor, the image comprising a plurality of pixels, determining a region of interest (“ROI”) in the image, the ROI comprising a subset of the plurality of pixels in the image, determining a ROI weight for pixels in the subset of the plurality of pixels, determining statistics for the image based on the plurality of pixels in the image and the ROI weight, and adjusting a gain or exposure setting for the image sensor based on the statistics.