公开(公告)号：US20220222777A1

公开(公告)日：2022-07-14

申请号：US17709616

申请日：2022-03-31

Applicant: OLYMPUS CORPORATION

Inventor： Kosuke KAJIMURA ,  Ryosuke MOCHIZUKI ,  Kenichi ONOMURA ,  Eiji FURUKAWA

IPC: G06T3/40 ,  G06T5/50

Abstract: An image processing device combines a plurality of time-series images to generate a composite image with a higher resolution than a resolution of the plurality of images. The image processing device includes a processor that includes hardware and that is configured to: detect depth information of at least one image of the plurality of images; and set the number of images to be combined for generating the composite image on the basis of the detected depth information. The depth information indicates a depth of a captured scene of the at least one image. The processor is configured to reduce the number of images as the depth of the captured scene increases.

公开(公告)号：US20180077360A1

公开(公告)日：2018-03-15

申请号：US15819968

申请日：2017-11-21

Applicant: OLYMPUS CORPORATION

Inventor： Eiji FURUKAWA ,  Kosuke KAJIMURA

IPC: H04N5/265 ,  G06T5/20 ,  G06T7/11

CPC classification number: H04N5/265 ,  G06T3/4053 ,  G06T5/20 ,  G06T7/11 ,  G06T2207/20216

Abstract: An image-processing device includes a high-resolution combining portion that generates a combined image by combining a standard image and at least one reference image, which are acquired by capturing images of a subject in time series by using an imaging element in which multiple types of color filters are arrayed in individual pixels, in a high-resolution space where the resolution is greater than those of the standard image and the reference images. The image-processing device also includes a position-displacement-distribution calculating portion that calculates a distribution of position displacements between two comparative images that are individually formed of pixels corresponding to the different types of color filters in the generated combined image, a correlation-level calculating portion that calculates, for individual pixels, correlation levels between the two comparative images based on the calculated distribution, and an image correcting portion that corrects the combined image based on the calculated correlation levels.

公开(公告)号：US20150319363A1

公开(公告)日：2015-11-05

申请号：US14796835

申请日：2015-07-10

Applicant: OLYMPUS CORPORATION

Inventor： Eiji FURUKAWA

IPC: H04N5/232 ,  G06T7/00 ,  H04N5/262 ,  G06T11/60 ,  G06T5/00

CPC classification number: H04N5/23232 ,  G06T3/4053 ,  G06T5/002 ,  G06T7/215 ,  G06T11/60 ,  G06T2207/10016 ,  G06T2207/20221 ,  H04N5/232 ,  H04N5/2628 ,  H04N5/349

Abstract: To improve the resolution of a stationary region while suppressing artifacts in a moving region, an image processing system includes a misalignment-detecting circuit that detects an amount of misalignment between a plurality of time-series images; a high-resolution combining circuit that, based on the amount of misalignment, combines the plurality of images in a high-resolution space having a higher resolution than the plurality of images to generate a high-resolution combined image; an image-converting circuit that reduces the size of the high-resolution combined image by resampling to generate a converted image; a correlation-calculating circuit that calculates the correlation between a standard image serving as a standard among the plurality of images and the converted image for each region; and an image-correcting circuit that corrects the high-resolution combined image such that the combining ratio of the standard image becomes lower as the correlation calculated by the correlation-calculating circuit becomes higher.

Abstract translation: 为了提高静止区域的分辨率同时抑制运动区域中的伪像，图像处理系统包括检测多个时间序列图像之间的未对准量的未对准检测电路; 基于未对准量的高分辨率组合电路将多个图像组合在具有比多个图像更高分辨率的高分辨率空间中，以产生高分辨率组合图像; 图像转换电路，其通过重采样来减小高分辨率组合图像的尺寸以产生转换的图像; 相关计算电路，计算多个图像中的作为标准的标准图像与每个区域的转换图像之间的相关性; 以及图像校正电路，其校正高分辨率组合图像，使得由相关计算电路计算的相关性，标准图像的组合比变低。

公开(公告)号：US20130314557A1

公开(公告)日：2013-11-28

申请号：US13959320

申请日：2013-08-05

Applicant: Olympus Corporation

Inventor： Eiji FURUKAWA

IPC: H04N5/225

CPC classification number: H04N5/225 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/20201 ,  G06T2207/20221 ,  H04N5/145 ,  H04N5/21

Abstract: An image processing device includes: a motion-vector computation unit that computes a motion vector between a base image and a reference image; a motion compensation unit that performs a motion compensation to align the reference image with the base image based on the motion vector; a contrast computation unit that computes a contrast value of a target pixel of the base image based on one of the base image and the reference image; a synthetic ratio computation unit that computes a synthetic ratio between: the target pixel for a synthesis processing in the base image; and a corresponding pixel corresponding to the target pixel in the reference image processed by the motion compensation, in response to the contrast value of the target pixel; and a synthesizing unit that synthesizes the target pixel of the base image and the corresponding pixel of the reference image based on the synthetic ratio.

Abstract translation: 一种图像处理装置包括：运动矢量计算单元，其计算基本图像和参考图像之间的运动矢量; 运动补偿单元，其基于所述运动矢量执行运动补偿以使所述参考图像与所述基本图像对准; 对比度计算单元，其基于所述基础图像和所述参考图像中的一个来计算所述基本图像的目标像素的对比度值; 合成比率计算单元，其计算在所述基本图像中的合成处理的目标像素之间的合成比; 以及对应于通过运动补偿处理的参考图像中的目标像素的对应像素，响应于目标像素的对比度值; 以及合成单元，其基于合成比合成基本图像的目标像素和参考图像的对应像素。

公开(公告)号：US20220210331A1

公开(公告)日：2022-06-30

申请号：US17697309

申请日：2022-03-17

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi FUKUTOMI ,  Kosuke KAJIMURA ,  Eiji FURUKAWA

IPC: H04N5/232 ,  H04N5/225

Abstract: An image acquisition apparatus includes an optical system including a lens and forming a subject image; an image acquisition device having an image acquisition surface on which the subject image is formed and acquiring a plurality of images; a shifting mechanism causing the device and system to relatively shift in a direction parallel to the surface; and a processor configured to: calculate a movement amount of the subject image on the surface; calculate a relative shift amount of the device and system on the basis of the calculated movement amount; and cause the device and system to relatively shift, between acquisitions of the plurality of images, by the calculated shift amount. The device acquires a plurality of pre-images before acquiring the plurality of images, and the processor is configured to calculate the movement amount of the subject image from a movement amount of the subject between the plurality of pre-images.

公开(公告)号：US20180084274A1

公开(公告)日：2018-03-22

申请号：US15809947

申请日：2017-11-10

Applicant: OLYMPUS CORPORATION

Inventor： Eiji FURUKAWA

IPC: H04N19/53 ,  G06T1/00 ,  H04N19/43 ,  G06T5/50 ,  G06T7/207 ,  G06T7/11

CPC classification number: H04N19/53 ,  G06T1/0007 ,  G06T5/50 ,  G06T7/11 ,  G06T7/207 ,  G06T7/254 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/20224 ,  H04N19/43

Abstract: An image acquisition device according to the present invention includes: an image acquisition unit that acquires images of a subject in time series; a hierarchical motion-detection unit that can detect a motion vector between the images acquired by the image acquisition unit, by using images at two or more levels having different resolutions; a pixel-value-change detecting unit that divides the images acquired by the image acquisition unit into a plurality of partial regions and that detects a temporal change of the pixel value at a detection pixel set in each of the partial regions; and a hierarchical-motion-detection setting unit that sets a larger number of levels used in the hierarchical motion-detection unit, for any of the partial regions that includes the detection pixel at which the temporal change detected by the pixel-value-change detecting unit is larger.

公开(公告)号：US20190089915A1

公开(公告)日：2019-03-21

申请号：US16197050

申请日：2018-11-20

Applicant: OLYMPUS CORPORATION

Inventor： Eiji FURUKAWA ,  Junichi TASHIRO

IPC: H04N5/341 ,  H04N9/73 ,  G06T9/20 ,  G06T7/33 ,  G06T9/00 ,  H04N19/124

CPC classification number: H04N5/341 ,  G06T7/337 ,  G06T9/008 ,  G06T9/20 ,  H04N9/735 ,  H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

Abstract: An image processing device includes a processor configured to: extract pixel blocks; detect pixels having a maximum value and a minimum value in each of the pixel blocks; calculate reference value candidates from the maximum and the minimum values; calculate an absolute difference value relative to each of the maximum value, the minimum value, and the reference value candidates; divide each of the pixel blocks into subblocks; select, as a reference value from among the reference value candidates in each of the subblocks, a reference value candidate close to the pixel values in which the pixels included in each of the subblocks are distributed; extract a closest difference value, the minimum value, and the reference value; quantize each of the closest difference values into a quantization value by using the difference value that is the largest from among the closest difference values; and code the quantization value.

公开(公告)号：US20190050968A1

公开(公告)日：2019-02-14

申请号：US16162483

申请日：2018-10-17

Applicant: OLYMPUS CORPORATION

Inventor： Daisuke SUZUKI ,  Eiji FURUKAWA

IPC: G06T5/00 ,  G06T1/20 ,  G06T5/20 ,  H04N19/513

Abstract: An image processing device includes: a frame memory that saves a cyclic image of an immediately preceding frame as a reference image; and a processor comprising hardware. The processor is configured to: decompose an input image into a plurality of resolution images; set, as a base image, an image having a lower resolution than the input image among the plurality of resolution images and that detects a motion vector between the base image and the reference image; subject the reference image to motion compensation on the basis of the motion vector to generate a motion-compensated image; combine the base image with the motion-compensated image to generate a noise-reduced base image that serves as a new cyclic image; and combine the noise-reduced base image with the resolution image or resolution images other than the base image among the plurality of resolution images.