公开(公告)号：US20250078202A1

公开(公告)日：2025-03-06

申请号：US18458469

申请日：2023-08-30

Applicant: QUALCOMM Incorporated

Inventor： Jing Wang ,  Ting-Kuei Hu ,  Yi-Chun Lu ,  Xiaoyun Jiang

IPC: G06T3/40 ,  G06T7/11 ,  G06T7/40

Abstract: This disclosure provides systems, methods, and devices for image signal processing that support image detail recovery using high frequency and low frequency components of an image frame. In a first aspect, a method of image processing includes receiving image data of an image frame, determining quad phase detection (QPD) image data for the image frame based on the image data for the image frame, and generating a first high frequency component of the image data for a first phase of the image data based on the QPD image data. Other aspects and features are also claimed and described.

公开(公告)号：US11363213B1

公开(公告)日：2022-06-14

申请号：US17187357

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

Inventor： Ki Sun Song ,  Yi-Chun Lu ,  Shang-Chih Chuang ,  Xiaoyun Jiang ,  Nyeongkyu Kwon

IPC: H04N5/235 ,  G06T7/20

Abstract: Methods, systems, and devices for minimizing ghosting in high dynamic range image processing are described. The method may include capturing from a sensor of the device a downscaled first frame of a first exposure length and a downscaled second frame of a second exposure length that is longer than the first exposure length, identifying a highlight region associated with the downscaled first frame and a motion region associated with the downscaled first frame and with the downscaled second frame, blending the motion region in accordance with determining whether at least a portion of the motion region overlaps the highlight region, and incorporating the blending of the motion region in a set of full resolution frames.

公开(公告)号：US11373281B1

公开(公告)日：2022-06-28

申请号：US17183231

申请日：2021-02-23

Applicant: QUALCOMM Incorporated

Inventor： Narayana Karthik Ravirala ,  Xiaoyun Jiang ,  Shang-Chih Chuang ,  Yi-Chun Lu ,  Younsu Kim

IPC: G06T5/00 ,  G06T7/215 ,  G06T5/50

Abstract: Methods, systems, and devices for anchor frame switching in an imaging system are described. A device may generate a pixel map based on a set of frames. A first subset of frames of the set of frames have a first exposure and a second subset of frames of the set of frames have a second exposure different than the first exposure. The device may determine a region of the pixel map representing motion between at least two frames of the first set of frames. If the device determines that a quantity of motion pixels in the region is higher than a threshold, the device may select a short exposure frame as an anchor frame, beginning at a later frame. Otherwise, the device may maintain using a long exposure frame as the anchor frame.