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公开(公告)号：US10382678B2
公开(公告)日：2019-08-13
申请号：US15898888
申请日：2018-02-19
Inventor： Yumiko Kato , Yoshihide Sawada , Yasuhiro Mukaigawa , Takuya Funatomi , Hiroyuki Kubo , Fusataka Kuniyoshi
IPC: H04N5/232 , G01N21/64 , G01N21/47 , H04N5/349 , G02B21/00 , G06K9/20 , G06K9/00 , H04N5/225 , H04N5/235 , G01B11/00 , G01B11/25
Abstract: An image generation apparatus includes first and second light sources, an image sensor, a mask, and a processing circuit. The image sensor acquires a first image when the first light source is energized and acquires a second image when the second light source is energized. The processing circuit obtains a pixel value based on a direct light component or a pixel value based on a component other than the direct light component corresponding to a focal point by using pixel values of first pixel regions of the first image, pixel values of second pixel regions of the second image, the ratios of the direct light and the light other than the direct light from the first light source, and the ratios of the direct light and the light other than the direct light from the second light source and generates a cross-sectional image of a substance on the focal plane.
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公开(公告)号：US10168523B2
公开(公告)日：2019-01-01
申请号：US15388159
申请日：2016-12-22
Inventor： Yumiko Kato , Yoshihide Sawada , Masahiro Iwasaki , Yasuhiro Mukaigawa , Hiroyuki Kubo
Abstract: An image generating system that generates a focal image of a target object on a virtual focal plane located between a plurality of illuminators and an image sensor (b) carries out the following (c) through (f) for each of a plurality of pixels constituting the focal image, (c) carries out the following (d) through (f) for each of the positions of the plurality of illuminators, (d) calculates a position of a target point that is a point of intersection of a straight line connecting a position of the pixel on the focal plane and a position of the illuminator and a light receiving surface of the image sensor, (e) calculates a luminance value of the target point in the captured image by the illuminator on the basis of the position of the target point, (f) applies the luminance value of the target point to the luminance value of the pixel, and (g) generates the focal image of the target object on the focal plane by using a result of applying the luminance value at each of the plurality of pixels.
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公开(公告)号：US10607316B2
公开(公告)日：2020-03-31
申请号：US15641322
申请日：2017-07-05
Inventor： Yumiko Kato , Yoshihide Sawada , Yasuhiro Mukaigawa , Takuya Funatomi , Hiroyuki Kubo
Abstract: An image generating apparatus is provided with: first and second light sources that illuminate a material; an image sensor on which the material is disposed; a mask which includes a light-transmitting part that transmits light and a light-blocking part that blocks light, and which is positioned between the image sensor and the first and second light sources; and a light and dark image processing unit. The image sensor acquires first and second images of the material when illuminated by the first and second light sources, respectively. The light and dark image processing unit derives a difference between a luminance value of a pixel included in the first image and a luminance value of a pixel included in the second image at the same position as the pixel included in the first image, and thereby generates a third image of the material.
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公开(公告)号：US10379336B2
公开(公告)日：2019-08-13
申请号：US15868580
申请日：2018-01-11
Inventor： Yumiko Kato , Yoshihide Sawada , Yasuhiro Mukaigawa , Takuya Funatomi , Hiroyuki Kubo , Fusataka Kuniyoshi
Abstract: An image generating apparatus is provided with a first light source and a second light source, an image sensor, a mask including a light-transmitting part and a light-blocking part, and a dark image processing unit. The image sensor acquires a first image of the material when illuminated by the first light source, and acquires a second image of the material when illuminated by the second light source. The image sensor includes a first pixel region and a second pixel region. The light-blocking part is positioned between the first pixel region and the first light source. The light-blocking part is positioned between the first pixel region and the first light source. The dark image processing unit uses first pixel information corresponding to a first pixel region in the first image and second pixel information corresponding to a second pixel region in the second image to generate a third image.
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