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公开(公告)号：US10855931B1
公开(公告)日：2020-12-01
申请号：US16677570
申请日：2019-11-07
Applicant: Novatek Microelectronics Corp.
Inventor： Chi-Fan Liou , Wei Hsu
IPC: H04N5/235
Abstract: A high dynamic range image sensing method for an image sensing device is provided. The high dynamic range image sensing method comprises: calculating a brightness sum value of a pixel block to obtain a long exposure value; calculating a brightness average value of the pixel block to obtain a short exposure value; calculating a block average value of a plurality of adjacent pixel blocks; obtaining a weight value according to the block average value; and outputting a high dynamic range pixel value of one pixel according to the long exposure value, the short exposure value and the weight value.
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公开(公告)号：US09530231B2
公开(公告)日：2016-12-27
申请号：US14639124
申请日：2015-03-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jau-Hong Kao , Shiang-Fei Wang , Yi-Jen Wu , Chih-Huang Lin , Min-Hui Chu , Hong-Chu Chen , Chi-Fan Liou
CPC classification number: G06T11/40 , G06T11/00 , G06T15/405 , G06T2200/12 , G08B13/19606
Abstract: A method for generating masking image using general polygonal mask includes receiving a pixel of a raw image and a polygon vertices array corresponding to a polygonal mask, determining whether the pixel is inside the polygonal mask, labeling the pixel to be a masked pixel if the pixel is inside the polygonal mask, or labeling the pixel to be a visible pixel if the pixel is outside the polygonal mask, and outputting the masked pixel or the visible pixel to generate the masking image.
Abstract translation: 使用一般多边形掩模生成掩蔽图像的方法包括：接收与多边形掩模相对应的原始图像和多边形顶点阵列的像素，确定像素是否在多边形掩模内，如果像素为像素，则将像素标记为被掩模像素 在多边形掩模内部，或者如果像素在多边形掩模之外，则将像素标记为可见像素，并输出屏蔽像素或可见像素以产生掩蔽图像。
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公开(公告)号：US11223779B2
公开(公告)日：2022-01-11
申请号：US16899593
申请日：2020-06-12
Applicant: NOVATEK Microelectronics Corp.
Inventor： Dong-Hai Huang , Chi-Fan Liou , Jie-Jung Huang
IPC: H04N5/235
Abstract: An operating method of an image sensing device capable of detecting several light emitting diodes each having a flickering cycle time, the image sensing device includes several pixel circuits, each of the several pixel circuits includes a first sensing circuit and a second sensing circuit, the operating method including the following operations: operating the image sensing device in a first operating mode, including: sensing light by the first sensing circuit with a first exposure time longer than the flickering cycle time, thereby obtaining a first sensing result; sensing light, simultaneously by the first sensing circuit and the second sensing circuit with a second exposure time shorter than the flickering cycle time, thereby obtaining a second sensing result and a third sensing result; determining whether there is LED (light emitting diode) flickering or not according to the first sensing result, the second sensing result and the third sensing result.
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公开(公告)号：US20160260235A1
公开(公告)日：2016-09-08
申请号：US14639124
申请日：2015-03-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jau-Hong Kao , Shiang-Fei Wang , Yi-Jen Wu , Chih-Huang Lin , Min-Hui Chu , Hong-Chu Chen , Chi-Fan Liou
CPC classification number: G06T11/40 , G06T11/00 , G06T15/405 , G06T2200/12 , G08B13/19606
Abstract: A method for generating masking image using general polygonal mask includes receiving a pixel of a raw image and a polygon vertices array corresponding to a polygonal mask, determining whether the pixel is inside the polygonal mask, labeling the pixel to be a masked pixel if the pixel is inside the polygonal mask, or labeling the pixel to be a visible pixel if the pixel is outside the polygonal mask, and outputting the masked pixel or the visible pixel to generate the masking image.
Abstract translation: 使用一般多边形掩模生成掩蔽图像的方法包括：接收与多边形掩模相对应的原始图像和多边形顶点阵列的像素，确定像素是否在多边形掩模内，如果像素为像素，则将像素标记为被掩模像素 在多边形掩模内部，或者如果像素在多边形掩模之外，则将像素标记为可见像素，并输出屏蔽像素或可见像素以产生掩蔽图像。
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