公开(公告)号：US20250117894A1

公开(公告)日：2025-04-10

申请号：US18480829

申请日：2023-10-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Madhuri Suthar ,  Nguyen Thang Long Le ,  Tyler Luu ,  Hamid R. Sheikh

IPC: G06T5/00

Abstract: A method includes obtaining multiple input image frames and generating bad pixel maps associated with different ones of the input image frames. Each bad pixel map is generated using first and second adaptive thresholds that are based on statistical properties of image data contained in a specified operation window within the associated input image frame. The method also includes generating at least one refined bad pixel map using the bad pixel maps associated with two or more of the input image frames. The method further includes using one or more coordinates of one or more bad pixels identified in the at least one refined bad pixel map to update one or more pixel values of at least one of the input image frames.

公开(公告)号：US20240202874A1

公开(公告)日：2024-06-20

申请号：US18068916

申请日：2022-12-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Madhuri Suthar ,  Tyler Luu ,  Nguyen Thang Long Le ,  John W. Glotzbach ,  Hamid R. Sheikh

IPC: G06T5/30 ,  G06T3/40 ,  G06T5/50

CPC classification number: G06T5/30 ,  G06T3/4015 ,  G06T5/50 ,  G06T2207/20024 ,  G06T2207/20036 ,  G06T2207/20212

Abstract: A method includes obtaining input image frames, including at least two captured using different capture conditions. The method also includes separating color channels of each image frame and generating at least one bad pixel map for each color channel of each image frame. Each bad pixel map is generated by identifying one or more outliers in pixel values in the color channel based on an intensity distribution of pixel values in an operation window within the color channel. The operation window has a window size based on the capture condition and/or local image content in the corresponding image frame. The method further includes combining the bad pixel maps and performing a morphological operation to refine the combined bad pixel map. In addition, the method includes using one or more coordinates of one or more bad pixels in the refined bad pixel map to update one or more pixel values of at least one image frame.