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公开(公告)号:US20140118586A1
公开(公告)日:2014-05-01
申请号:US14064612
申请日:2013-10-28
Applicant: OLYMPUS CORPORATION , TOKYO INSTITUTE OF TECHNOLOGY
Inventor: Masayuki TANAKA , Yusuke MONNO , Masatoshi OKUTOMI , Sunao KIKUCHI , Yasuhiro KOMIYA
IPC: H04N9/04
CPC classification number: G01J1/0492 , G02B5/201 , H01L27/14621 , H01L27/14625 , H01L27/14643 , H01L27/14645 , H04N9/045
Abstract: An imaging apparatus has a color filter array, an image sensor, and a differential information acquisition unit. In the color filter array, including five or more types of color filters are arranged in a two dimensional form. The image sensor has a plurality of pixels covered by the color filters, and the plurality of pixels generate pixel signals. The acquisition unit designates one of the pixels covered by the color filters of interest as a pixel of interest one pixel at a time in order. The acquisition unit calculates first differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the first direction. The acquisition unit calculates second differential information based on pixel signals generated by two of the pixels arranged on both sides of the pixel of interest along the second direction.
Abstract translation: 成像装置具有滤色器阵列,图像传感器和差分信息获取单元。 在滤色器阵列中,包括五种或更多种类型的滤色器以二维形式布置。 图像传感器具有由滤色器覆盖的多个像素,并且多个像素生成像素信号。 采集单元依次指定由感兴趣的滤色器覆盖的像素之一作为感兴趣的像素,一次一个像素。 所述获取单元基于沿着所述第一方向布置在所述感兴趣像素的两侧上的两个像素生成的像素信号来计算第一差分信息。 获取单元基于沿着第二方向布置在感兴趣像素的两侧上的两个像素生成的像素信号来计算第二差分信息。
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2.
公开(公告)号:US20170206631A1
公开(公告)日:2017-07-20
申请号:US15479322
申请日:2017-04-05
Applicant: TOKYO INSTITUTE OF TECHNOLOGY , OLYMPUS CORPORATION
Inventor: Sunao KIKUCHI , Yusuke MONNO , Daisuke KIKU , Masayuki TANAKA , Masatoshi OKUTOMI
CPC classification number: G06T3/4007 , G06T5/20 , H04N5/23229 , H04N5/23232 , H04N7/183 , H04N9/045 , H04N9/07
Abstract: An image processing unit has an image acquisition part, a correlation determination part, a reference image generation part, and an interpolation image generation part. The image acquisition part acquires an original image. The correlation determination unit determines whether the correlation of an image component of a primary reference band with image components of respective bands other than the primary reference band is either high correlation or low correlation. The reference image generation part interpolates missing pixels in the image component of the primary reference band by switching the interpolation method based on the correlation determination result obtained by the correlation determination part. The interpolation image generation part interpolates, using the correlation determination result and the primary reference image, missing pixels in at least some of the image component of the primary reference band.
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公开(公告)号:US20140054448A1
公开(公告)日:2014-02-27
申请号:US14068151
申请日:2013-10-31
Applicant: OLYMPUS CORPORATION , TOKYO INSTITUTE OF TECHNOLOGY
Inventor: Masayuki TANAKA , Yusuke MONNO , Masatoshi OKUTOMI , Sunao KIKUCHI , Yasuhiro KOMIYA
CPC classification number: G01J1/0492 , G02B5/201 , H01L27/14621 , H01L27/14625 , H01L27/14643 , H01L27/14645 , H04N9/045
Abstract: The color filter array 21a comprises seven or more types of color filters including a first color filter. The seven or more types color filters have different spectral sensitivity characteristics. The seven or more types of color filters are arranged in a two-dimensional form. Among the seven or more types of color filters, at least two types of color filters are designated as a color filter of interest. Two color filters arranged at a first interval on both sides of the color filter of interest along a first direction are of the same type. Two color filters arranged at a second interval on both sides of the color filter of interest along a second direction that is different from the first direction are of the same type. Among the color filters, at least one type of color filter have a density higher than that of the other types of color filters, thereby realizing acquisition of highly accurate gradient information from a multiband color filter array.
Abstract translation: 滤色器阵列21a包括七种或更多种类型的包括第一滤色器的滤色器。 七种或更多种类型的滤色器具有不同的光谱灵敏度特性。 七种或更多种类型的滤色器以二维形式布置。 在七种或更多种类型的滤色器中,至少两种类型的滤色器被指定为感兴趣的滤色器。 沿着第一方向在感兴趣的滤色器的两侧以第一间隔布置的两个滤色器是相同的。 沿着与第一方向不同的第二方向在感兴趣的滤色器的两侧上以第二间隔布置的两个滤色镜是相同的。 在滤色器中,至少一种类型的滤色器的密度高于其他类型的滤色器,从而实现从多频带滤色器阵列获取高精度的梯度信息。
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