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公开(公告)号：US10681290B1
公开(公告)日：2020-06-09
申请号：US16238522
申请日：2019-01-03
Applicant: Novatek Microelectronics Corp.
Inventor： Wei Hsu
Abstract: A method, an image sensor, and an image processing device for crosstalk noise reduction are proposed. The method is applicable to an image sensor having a sensing array of image sensing elements and PD sensing elements and includes the following steps. A raw image generated by the sensing array is obtained. Whether to compensate image data of a current image pixel among image pixels corresponding to the image sensing elements is determined based on a first condition associated with at least one of an exposure and a system gain of the image sensor, a second condition associated with pixel coordinates of PD pixels corresponding to the PD sensing elements, and a third condition associated with sharpness information of the raw image. The image data of the current image pixel is compensated in response to the three conditions being satisfied. A processed raw image including the compensated image data is generated.
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公开(公告)号：US20170366786A1
公开(公告)日：2017-12-21
申请号：US15695030
申请日：2017-09-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei Hsu , Shen-Fu Tsai , I-Hsiu Chen
CPC classification number: H04N9/045 , H04N5/2258 , H04N5/35563 , H04N5/3696
Abstract: A color filter array for an image sensing device includes a plurality of pixels, for generating a plurality of pixel data of an image; and a control unit, for controlling the plurality of pixels; wherein each of the plurality of pixels is divided into a plurality of sub-pixels; wherein the pixel data outputted by each of the plurality of pixels is generated based on at least one pixel value of the plurality of sub-pixels and the outputted pixel data is smaller than a saturated threshold; wherein at least one pixel in the plurality of pixels has a mixed color by having different sub-pixel colors in the plurality of sub-pixels.
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公开(公告)号：US09832359B2
公开(公告)日：2017-11-28
申请号：US14149840
申请日：2014-01-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei Hsu
CPC classification number: H04N5/23212 , H04N5/23222 , H04N5/2356
Abstract: A focusing method for an image capturing device includes determining a first focus distance according to a first focus frame of the plurality of focus frames; capturing a first image according to the first focus frame, determining a second focus distance according to a second focus frame of the plurality of focus frames, and detecting whether a second depth of field corresponding to the second focus distance is overlapping with a first depth of field corresponding to the first focus distance, for determining whether to capture a second image according to the second focus distance.
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公开(公告)号：US09369645B2
公开(公告)日：2016-06-14
申请号：US14106839
申请日：2013-12-15
Applicant: Novatek Microelectronics Corp.
Inventor： Wei Hsu
IPC: H04N5/361
CPC classification number: H04N5/361
Abstract: An image sensing apparatus and a black level controlling method thereof are provided. The black level controlling method includes following steps. A conversion relationship between analog gain values and offset values is provided. An analog gain value is converted into an analog offset value by using the conversion relationship between analog gain values and offset values. Whether to adjust the analog offset value is decided according to a first optical black data corresponding to a first part of optical black pixels. A digital data offset value is calculated according to a data corresponding a second part of optical black pixels.
Abstract translation: 提供了一种图像感测装置及其黑色电平控制方法。 黑色电平控制方法包括以下步骤。 提供模拟增益值和偏移值之间的转换关系。 通过使用模拟增益值和偏移值之间的转换关系将模拟增益值转换为模拟偏移值。 根据与光学黑色像素的第一部分对应的第一光学黑色数据来决定是否调整模拟偏移值。 根据对应于光学黑色像素的第二部分的数据计算数字数据偏移值。
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公开(公告)号：US20160119559A1
公开(公告)日：2016-04-28
申请号：US14738929
申请日：2015-06-14
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei Hsu , Shen-Fu Tsai , I-Hsiu Chen
CPC classification number: H04N9/045 , H04N5/2258 , H04N5/35563 , H04N5/3696
Abstract: A color filter array for an image sensing device is disclosed. The color filter array includes a plurality of pixels and a control unit. The plurality of pixels is utilized for generating a plurality of pixel data of an image. The control unit is utilized for controlling the plurality of pixels. In addition, each of the plurality of pixels is divided into a plurality of sub-pixels corresponding to the same color. When outputting the plurality of pixel data, each of the plurality of pixels accumulates pixel value of at least one of the plurality of sub-pixels in each of the plurality of pixels as the pixel data outputted by each of the plurality of pixels.
Abstract translation: 公开了一种用于图像感测装置的滤色器阵列。 滤色器阵列包括多个像素和控制单元。 多个像素用于产生图像的多个像素数据。 控制单元用于控制多个像素。 此外，多个像素中的每一个被分成对应于相同颜色的多个子像素。 当输出多个像素数据时，多个像素中的每个像素将多个像素中的每一个中的多个子像素中的至少一个子像素的像素值累加为由多个像素中的每一个输出的像素数据。
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Patent Agency Ranking
公开(公告)号：US09148594B2
公开(公告)日：2015-09-29
申请号：US13952664
申请日：2013-07-28
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Wen Yuen , Wei Hsu , Chao-Yu Meng
CPC classification number: H04N5/365 , H04N5/3658 , H04N9/045
Abstract: A fixed pattern noise removal method for an image sensor includes steps of calculating each compensation value corresponding to each pixel column according to a plurality of compensation pixel values of the each pixel column; and sampling a plurality of active pixel values in an active pixel area and compensating the plurality of active pixel values according to the each compensation value of the each pixel column, to generate a plurality of compensated active pixel values. A plurality of active pixels sense light to generate the plurality of active pixel values.
Abstract translation: 用于图像传感器的固定图案噪声去除方法包括以下步骤：根据每个像素列的多个补偿像素值来计算与每个像素列对应的每个补偿值; 以及对有源像素区域中的多个有源像素值进行采样，并根据每个像素列的每个补偿值补偿多个有源像素值，以产生多个补偿的有源像素值。 多个有源像素感测光以产生多个有源像素值。
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公开(公告)号：US08781225B2
公开(公告)日：2014-07-15
申请号：US13674098
申请日：2012-11-12
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei Hsu
IPC: G06K9/00
CPC classification number: G06T5/40 , G06T5/008 , G06T2207/20012 , G06T2207/20021
Abstract: A tone-mapping method for adjusting a contrast of an image includes generating a luminance histogram of the image according to a luminance and a sharpness of the image; performing histogram equalization on the luminance histogram, to generate a luminance mapping function corresponding to the image; performing a weighted operation on the luminance mapping function and a linear function, to generate a weighted luminance mapping function corresponding to the image; generating a tone-mapping look-up table corresponding to the image according to the weighted luminance mapping function; and adjusting the luminance of the image according to the tone-mapping look-up table, so as to adjust the contrast of the image.
Abstract translation: 用于调整图像的对比度的色调映射方法包括根据图像的亮度和清晰度生成图像的亮度直方图; 在所述亮度直方图上执行直方图均衡，以产生对应于所述图像的亮度映射函数; 对所述亮度映射函数和线性函数进行加权运算，以生成与所述图像相对应的加权亮度映射函数; 根据加权亮度映射函数产生与图像相对应的色调映射查找表; 以及根据色调映射查找表调整图像的亮度，以便调整图像的对比度。
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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：US20150116533A1
公开(公告)日：2015-04-30
申请号：US14106839
申请日：2013-12-15
Applicant: Novatek Microelectronics Corp.
Inventor： Wei Hsu
CPC classification number: H04N5/361
Abstract: An image sensing apparatus and a black level controlling method thereof are provided. The black level controlling method includes following steps. A conversion relationship between analog gain values and offset values is provided. An analog gain value is converted into an analog offset value by using the conversion relationship between analog gain values and offset values. Whether to adjust the analog offset value is decided according to a first optical black data corresponding to a first part of optical black pixels. A digital data offset value is calculated according to a data corresponding a second part of optical black pixels.
Abstract translation: 提供了一种图像感测装置及其黑色电平控制方法。 黑色电平控制方法包括以下步骤。 提供模拟增益值和偏移值之间的转换关系。 通过使用模拟增益值和偏移值之间的转换关系将模拟增益值转换为模拟偏移值。 根据与光学黑色像素的第一部分对应的第一光学黑色数据来决定是否调整模拟偏移值。 根据对应于光学黑色像素的第二部分的数据计算数字数据偏移值。
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公开(公告)号：US20140313378A1
公开(公告)日：2014-10-23
申请号：US13952664
申请日：2013-07-28
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Wen Yuen , Wei Hsu , Chao-Yu Meng
CPC classification number: H04N5/365 , H04N5/3658 , H04N9/045
Abstract: A fixed pattern noise removal method for an image sensor includes steps of calculating each compensation value corresponding to each pixel column according to a plurality of compensation pixel values of the each pixel column; and sampling a plurality of active pixel values in an active pixel area and compensating the plurality of active pixel values according to the each compensation value of the each pixel column, to generate a plurality of compensated active pixel values. A plurality of active pixels sense light to generate the plurality of active pixel values.
Abstract translation: 用于图像传感器的固定图案噪声去除方法包括以下步骤：根据每个像素列的多个补偿像素值来计算与每个像素列对应的每个补偿值; 以及对有源像素区域中的多个有源像素值进行采样，并根据每个像素列的每个补偿值补偿多个有源像素值，以产生多个补偿的有源像素值。 多个有源像素感测光以产生多个有源像素值。
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