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1.发明申请公开(公告)号：US20140139706A1
公开(公告)日：2014-05-22
申请号：US14079063
申请日：2013-11-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： YUN-SEONG JANG , JONGSEONG CHOI , JUHYUN CHO
IPC: H04N5/217
CPC classification number: H04N9/045
Abstract: An image signal processor receives a Bayer image signal from an image sensor and converts the Bayer image signal into a normal image signal. The image signal processor includes a memory configured to store a table including reference brightness values and variation values according to the reference brightness values; a shot noise cancelation unit configured to calculate a reference brightness value of the Bayer image signal, select a variation value in the table of the memory according to the calculated reference brightness value, and perform shot noise cancelling on the Bayer image signal based on the selected variation value to generate a modified Bayer image signal; and an interpolation unit configured to generate the normal image signal by performing interpolation based on the modified Bayer image signal.
Abstract translation: 图像信号处理器从图像传感器接收拜耳图像信号，并将拜耳图像信号转换成正常图像信号。 图像信号处理器包括被配置为根据参考亮度值存储包括参考亮度值和变化值的表格的存储器; 拍摄噪声消除单元，被配置为计算拜耳图像信号的参考亮度值，根据所计算的参考亮度值选择存储器的表中的变化值，并且基于所选择的对所述拜耳图像信号执行拍摄噪声消除 变化值以生成修改的拜耳图像信号; 以及内插单元，被配置为通过基于修改的拜耳图像信号执行内插来生成正常图像信号。
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2.发明公开公开(公告)号：US20230231979A1
公开(公告)日：2023-07-20
申请号：US17983466
申请日：2022-11-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： ILDO KIM , PILSU KIM , DONGWOO LEE , NA-RI IM , DONG-BUM CHOI , JONGSEONG CHOI , SUKHWAN LIM
CPC classification number: H04N9/69 , G06T3/4015 , G06T5/002 , G06T7/90 , G06V10/60 , G06T2207/10024
Abstract: An image processing device includes; an image sensor including pixels arranged in a non-Bayer pattern and configured to generate non-Bayer pattern image data in response to electrical signals generated by the pixels, and an image signal processor configured to determine an indexing value indicating a color of a target pixel among the pixels and directly process the non-Bayer pattern image data in response to the indexing value.
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3.发明公开公开(公告)号：US20240259707A1
公开(公告)日：2024-08-01
申请号：US18399340
申请日：2023-12-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： CHANGHOON CHOI , SEUNGWON CHOI , HYUNCHEOL KIM , JONGSEONG CHOI
Abstract: A lens shading correction circuit includes an elliptical gain generation circuit configured to extract a position of a pixel and generate an elliptical gain value using elliptical gain parameters and the extracted position and a multiplier configured to output an output value by multiplying the elliptical gain value by a weight for the pixel. The lens shading correction circuit corrects the lens shading based on the first output value and a gain increment value.
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公开(公告)号：US20240179423A1
公开(公告)日：2024-05-30
申请号：US18449248
申请日：2023-08-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： MINOH KIM , PILSU KIM , DAEHO LEE , JONGSEONG CHOI , CHANGHOON CHOI
IPC: H04N23/81 , G06T7/13 , G06T7/90 , H04N23/741 , H04N23/84
CPC classification number: H04N23/81 , G06T7/13 , G06T7/90 , H04N23/741 , H04N23/84 , G06T2207/10024 , G06T2207/20208 , G06T2207/20221
Abstract: An image signal processor includes a noise reduction circuit, a high dynamic range (HDR) circuit and post-processing circuit. The noise reduction circuit performs noise reduction operation on a plurality of exposure noise images each respectively corresponding to one of a plurality of brightness levels to generate a plurality of exposure clean images in a first operation mode and performs the noise reduction operation on a single noise image corresponding to one brightness level to generate a single clean image in a second operation mode. The HDR circuit merges the plurality of exposure clean images to generate an HDR image in the first operation mode. The post-processing circuit generates an output image by processing the HDR image or the single clean image.
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