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1. 发明授权

US09188480B2 Color filter array and image sensor 有权
标题翻译：滤色片阵列和图像传感器
公开(公告)号：US09188480B2
公开(公告)日：2015-11-17
申请号：US14068151
申请日：2013-10-31
申请人： TOKYO INSTITUTE OF TECHNOLOGY , OLYMPUS CORPORATION
发明人： Masayuki Tanaka , Yusuke Monno , Masatoshi Okutomi , Sunao Kikuchi , Yasuhiro Komiya
IPC分类号： G02B5/20 , G01J1/04 , H01L27/146 , H04N9/04
CPC分类号： G01J1/0492 , G02B5/201 , H01L27/14621 , H01L27/14625 , H01L27/14643 , H01L27/14645 , H04N9/045
摘要： 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.
摘要翻译：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。

2. 发明授权

US10249020B2 Image processing unit, imaging device, computer-readable medium, and image processing method 有权
公开(公告)号：US10249020B2
公开(公告)日：2019-04-02
申请号：US15479322
申请日：2017-04-05
申请人： TOKYO INSTITUTE OF TECHNOLOGY , OLYMPUS CORPORATION
发明人： Sunao Kikuchi , Yusuke Monno , Daisuke Kiku , Masayuki Tanaka , Masatoshi Okutomi
IPC分类号： G06T3/40 , G06T5/20 , H04N5/232 , H04N5/235 , H04N9/04 , H04N9/07 , H04N7/18
摘要： 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.

3. 发明授权

US09250121B2 Imaging apparatus with plural color filters and image processing 有权
标题翻译：具有多个滤色器和图像处理的成像设备
公开(公告)号：US09250121B2
公开(公告)日：2016-02-02
申请号：US14064612
申请日：2013-10-28
申请人： TOKYO INSTITUTE OF TECHNOLOGY , OLYMPUS CORPORATION
发明人： Masayuki Tanaka , Yusuke Monno , Masatoshi Okutomi , Sunao Kikuchi , Yasuhiro Komiya
IPC分类号： H04N5/335 , G01J1/04 , G02B5/20 , H01L27/146 , H04N9/04
CPC分类号： G01J1/0492 , G02B5/201 , H01L27/14621 , H01L27/14625 , H01L27/14643 , H01L27/14645 , H04N9/045
摘要： 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.
摘要翻译：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。

4. 发明授权

US09843782B2 Interpolation device, storage medium, and method with multi-band color filter and noise reduced reference image 有权
公开(公告)号：US09843782B2
公开(公告)日：2017-12-12
申请号：US15187405
申请日：2016-06-20
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： H04N9/64 , H04N9/04 , G06T5/00 , G06T5/50 , G06T3/40
CPC分类号： H04N9/646 , G06T3/4015 , G06T5/002 , G06T5/50 , G06T2207/10024 , H04N9/045
摘要： An image processing device includes a processor, and the processor acquires a captured image that has been captured using an image sensor, the image sensor including a multi-band color filter array in which color filters that respectively correspond to four or more bands are arranged in an array, generates a low-noise reference image subjected to a noise reduction process as a reference image that is used for an interpolation process that is performed on pixel values of the captured image, and performs the interpolation process on a band basis based on the generated low-noise reference image to generate an interpolated image in which pixel values of missing pixels are interpolated.

5. 发明授权

US10404953B2 Multi-layer image sensor, image processing apparatus, image processing method, and computer-readable recording medium 有权
公开(公告)号：US10404953B2
公开(公告)日：2019-09-03
申请号：US15900721
申请日：2018-02-20
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： H04N9/09 , H04N5/33 , H04N9/07 , G06T3/40 , H04N9/64 , H04N9/04
摘要： A multi-layer image sensor includes: a first image sensor including a first pixel and a second pixel; and a second image sensor including a third pixel and at least one of a fourth pixel and a fifth pixel. The second image sensor has a light receiving surface where the first image sensor is stacked. At least a portion of the fourth pixel is arranged at a position corresponding to a position of the first pixel and at a position overlapping with the first pixel in a stacking direction of the first sensor. At least a portion of the third pixel is arranged at a position corresponding to a position of the second pixel and at a position overlapping with the second pixel in the stacking direction of the first sensor.

6. 发明授权

US09741113B2 Image processing device, imaging device, image processing method, and computer-readable recording medium 有权
公开(公告)号：US09741113B2
公开(公告)日：2017-08-22
申请号：US14977213
申请日：2015-12-21
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： G06T7/00 , G06K9/00 , G06K9/40 , G06K9/46 , G02B5/20
CPC分类号： G06T7/0012 , A61B5/0075 , A61B5/0077 , A61B5/02125 , A61B5/02416 , A61B5/14551 , G02B5/201 , G02B5/208 , G06K9/00228 , G06K9/40 , G06K9/4652 , G06T2207/30004
摘要： An image processing device includes: an acquisition unit configured to acquire image data generated by an imaging element where each of narrow band filters constituting a predetermined array pattern is disposed at a position corresponding to any one of a plurality of pixels; a determination unit configured to determine whether or not a light amount of the invisible light range under an environment at the time when the imaging element generates the image data is larger than a threshold value; and a generation unit configured to generate vital information of a subject based on the determination result of the determination unit.

7. 发明授权

US11571111B2 Endoscope scope, endoscope processor, and endoscope adaptor 有权
公开(公告)号：US11571111B2
公开(公告)日：2023-02-07
申请号：US16380630
申请日：2019-04-10
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： A61B1/00 , A61B1/06 , A61B1/04
摘要： An endoscope scope includes: an imaging device that acquires image information; a color filter disposed on pixels of the imaging device and in which primary-color pixels and complementary-color pixels coexist; a detector that detects whether or not an image processor that generates an observation image based on the acquired image information via the color filter is compatible with the image information consisting of an array in which the primary-color pixels and the complementary-color pixels coexist; and a converter that performs Bayer-conversion processing for converting the image information to a Bayer array in a case in which the detector detects that the image processor is not compatible with the image information consisting of the array, and that does not perform the Bayer-conversion processing on the image information in a case in which the detector detects that the image processor is compatible with the image information consisting of the array.

8. 发明授权

US10980409B2 Endoscope device, image processing method, and computer readable recording medium 有权
公开(公告)号：US10980409B2
公开(公告)日：2021-04-20
申请号：US16827777
申请日：2020-03-24
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： A61B1/06 , H04N9/04 , A61B1/00 , A61B1/05 , H04N5/235 , A61B5/02 , A61B5/00 , H04N5/225
摘要： An endoscope device includes: a light source configured to perform any one of simultaneous lighting and sequential lighting; an image sensor including a plurality of pixels; a plurality of filters including at least one type of primary filter and a complementary filter; and a processor including hardware, the processor being configured to cause the light source to switch between the simultaneous lighting and the sequential lighting, when the simultaneous lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter, and when the sequential lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter as an imaging signal generated from a pixel corresponding to the at least one type of primary filter.

9. 发明授权

US11045079B2 Endoscope device, image processing apparatus, image processing method, and program 有权
公开(公告)号：US11045079B2
公开(公告)日：2021-06-29
申请号：US16039802
申请日：2018-07-19
申请人： OLYMPUS CORPORATION
发明人： Sunao Kikuchi
IPC分类号： A61B1/04 , A61B1/07 , A61B1/06 , A61B1/045 , G02B23/24 , A61B1/00
摘要： An endoscope device is disclosed which includes an image processing unit that generates a first image corresponding to light in a green wavelength band on the basis of an imaging signal generated by an imaging device when a light source unit emits first illumination light or second illumination light, and generates a second image corresponding to light in other one of wavelength bands. Resolution of the first image obtained when the light source unit emits the first illumination light is equal to or higher than resolution of the first image obtained when the light source unit emits the second illumination light, and resolution of the second image obtained when the light source unit emits the second illumination light is higher than resolution of the second image obtained when the light source unit emits the first illumination light.

10. 发明授权

US10299665B2 Imaging device and capsule endoscope system 有权
公开(公告)号：US10299665B2
公开(公告)日：2019-05-28
申请号：US15616340
申请日：2017-06-07
申请人： OLYMPUS CORPORATION
发明人： Kazunori Yoshizaki , Ken Ioka , Sunao Kikuchi , Yasuhiro Komiya , Yasuhiro Fukunaga
IPC分类号： A61B1/04 , A61B1/06 , H04N9/47 , A61B1/00 , H04N5/225 , H04N5/33 , H04N9/04
摘要： An imaging device includes: an imaging sensor; a color filter including first band filters and a second band filter configured to transmit narrowband light having a maximum value of a transmission spectrum outside a range of the wavelength band of the light that passes through each first band filter; a first light source unit; a second light source unit configured to radiate light having an upward projecting distribution of a wavelength spectrum in relation to intensity and having a narrowband light spectrum narrower than the broadband; and a control unit configured to cause the first light source unit and the second light source unit to radiate the beams of light simultaneously, wherein a peak wavelength of the light radiated by the second light source unit is an infrared region or a near-infrared region.

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