公开(公告)号：US20170085849A1

公开(公告)日：2017-03-23

申请号：US15225089

申请日：2016-08-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SEONGYEONG JEONG ,  KYU-MIN KYUNG

IPC: H04N9/64 ,  H04N5/363 ,  H04N5/378 ,  H04N9/04 ,  H04N5/3745

CPC classification number: H04N9/045 ,  H04N5/365 ,  H04N5/3653 ,  H04N5/378

Abstract: An image capturing device includes a pixel array having a plurality of pixels arranged in a matrix form, wherein each of the pixels includes a pair of photoelectric conversion devices, an analog to digital converter that converts a pair of pixel signals corresponding to charges accumulated in the pair of photoelectric conversion devices included in each of the pixels into a pair of digital signals, and a circuit receiving the pair of digital signals being output from each of the pixels, detecting a pixel including a photoelectric conversion device outputting a saturation current based on the received pairs in the detected pixel to output a correction signal.

公开(公告)号：US20240147081A1

公开(公告)日：2024-05-02

申请号：US18491125

申请日：2023-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： SEONGYEONG JEONG ,  SEONGWOOK SONG ,  GEUNYOUNG LEE ,  JONGMIN YOU ,  JEONGGUK LEE

IPC: H04N23/76 ,  H04N23/71 ,  H04N23/84

CPC classification number: H04N23/76 ,  H04N23/71 ,  H04N23/843

Abstract: An image signal processor configured to receive a digital signal from an image sensor includes a saturation detecting unit configured to classify each of a plurality of pixels, corresponding to the digital signal, as either a saturated pixel or a non-saturated pixel and to select a compensable pixel among the saturated pixels, a color processing unit configured to estimate channel values for each color for each of the plurality of pixels corresponding to the digital signal and to perform a correlation calculation between the channel values for each color, and a saturation compensation unit configured to select at least one color-transfer pixel, among the non-saturated pixels, based on the correlation calculation value between the channel values for each color and to perform a compensation operation on the compensable pixel based on the at least one color-transfer pixel. The image signal processor may recover information, lost due to saturation, through a color-transfer method using a correlation between colors. Accordingly, a dynamic range may be extended.