公开(公告)号：US20140226726A1

公开(公告)日：2014-08-14

申请号：US14343062

申请日：2012-10-05

Applicant: Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

Inventor： Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

IPC: H04N19/55

CPC classification number: H04N19/55 ,  H04N19/117 ,  H04N19/136 ,  H04N19/167 ,  H04N19/182 ,  H04N19/51 ,  H04N19/82 ,  H04N19/86

Abstract: The present technique relates to an image processing device, an image processing method, a program, and a recording medium that enable more accurate block noise correction without degradation of image quality.A motion predicting unit detects, from a criteria image and a reference image, the motion vector of each of blocks constituting an image. A motion compensating unit generates a motion-compensated image by performing motion compensation on the reference image, using the motion vectors. A correction value calculating unit calculates a correction value for correcting the pixel value of a current pixel in a current block in the motion-compensated image based on a boundary difference value between the criteria image and the motion-compensated image, the boundary difference value being a difference value with respect to the pixel value of a boundary pixel in a boundary portion adjacent to an adjacent block in the current block. An adding unit adds the correction value to the pixel value of the current pixel in the motion-compensated image. The present technique can be applied to image processing devices.

Abstract translation: 本技术涉及能够在不降低图像质量的情况下实现更精确的块噪声校正的图像处理装置，图像处理方法，程序和记录介质。 运动预测单元从标准图像和参考图像检测构成图像的每个块的运动矢量。 运动补偿单元通过使用运动矢量对参考图像执行运动补偿来生成运动补偿图像。 校正值计算单元基于标准图像和运动补偿图像之间的边界差值，计算用于校正运动补偿图像中的当前像素中的当前像素的像素值的校正值，边界差值为 相对于当前块中与相邻块相邻的边界部分中的边界像素的像素值的差值。 添加单元将校正值与运动补偿图像中的当前像素的像素值相加。 本技术可以应用于图像处理装置。

公开(公告)号：US20130084017A1

公开(公告)日：2013-04-04

申请号：US13608267

申请日：2012-09-10

Applicant: Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

Inventor： Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

IPC: G06K9/68

CPC classification number: H04N19/86 ,  H04N5/145

Abstract: An image processing apparatus includes a motion estimation processing section that detects a motion vector of block units which configure an image from a standard image and a reference image; a motion compensation processing section that produces a motion compensation image by performing motion compensation of the reference image using the motion vector; a difference calculation section that calculates a difference value between pixel values of a pixels of the standard image and pixel values of pixels of the motion compensation image; and a threshold value processing section that determines whether block noise is contained in the motion compensation image of a block unit or not by performing a threshold value processing on the difference value.

Abstract translation: 一种图像处理装置，包括运动估计处理部，其检测从标准图像和参考图像构成图像的块单位的运动矢量; 运动补偿处理部，其通过使用所述运动矢量进行所述参考图像的运动补偿来生成运动补偿图像; 差分计算部分，计算标准图像的像素的像素值和运动补偿图像的像素的像素值之间的差值; 以及阈值处理部，其通过对所述差值执行阈值处理来判定块单位的运动补偿图像中是否包含块噪声。

公开(公告)号：US08750635B2

公开(公告)日：2014-06-10

申请号：US13614502

申请日：2012-09-13

Applicant: Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

Inventor： Masatoshi Yokokawa ,  Takefumi Nagumo ,  Jun Luo

IPC: G06K9/36

CPC classification number: G06T5/002 ,  G06T5/50 ,  G06T7/223 ,  G06T2207/10016 ,  H04N5/21 ,  H04N5/23267

Abstract: There is provided an image processing apparatus including a local-motion-compensation-processing unit which generates a local-motion-compensation image by detecting a local motion vector, which is a motion vector for each block forming an image, from a standard image and a reference image, and performing motion compensation on the reference image using the local motion vector, a global-motion-compensation-processing unit which generates a global-motion-compensation image by calculating a global motion vector, which is a motion vector for an entire image between the standard image and the reference image, using the local motion vector, and performing motion compensation on the reference image using the global motion vector, and a blend processing unit which generates a blend-motion-compensation image by combining a pixel value of a pixel in the local-motion-compensation image and a pixel value of a pixel in the global-motion-compensation image based on a noise intensity for a luminance value of an image.

Abstract translation: 提供了一种图像处理装置，其包括局部运动补偿处理单元，其通过从标准图像检测作为形成图像的每个块的运动矢量的局部运动矢量来生成局部运动补偿图像，以及 参考图像，并使用局部运动矢量对参考图像执行运动补偿;全局运动补偿处理单元，其通过计算全局运动补偿图像来生成全局运动补偿图像，该全局运动补偿图像是用于 使用局部运动矢量在标准图像和参考图像之间的整个图像，以及使用全局运动矢量对参考图像执行运动补偿;以及混合处理单元，其通过组合像素值来生成混合运动补偿图像 的局部运动补偿图像中的像素和全局运动补偿图像中的像素的像素值，基于亮度的噪声强度 图像的值。

公开(公告)号：US20100157073A1

公开(公告)日：2010-06-24

申请号：US12645211

申请日：2009-12-22

Applicant: Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

Inventor： Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

IPC: H04N5/228

CPC classification number: H04N5/23248 ,  H04N5/23254 ,  H04N5/23267

Abstract: An image processing apparatus includes a motion prediction processor configured to detect a motion vector that indicates inter-image motion between a current image and a reference image; a motion compensation processor configured to perform a motion compensation process for the reference image by using the motion vector and generate a motion compensated image; an addition processor configured to generate a noise reduced image in which noise of the current image is reduced by adding the current image and the motion compensated image; an addition determination unit configured to compute an addition weight in units of pixels of the motion compensated image; a down-sampling processor configured to perform a process for reducing the current image and the motion compensated image; and an up-sampling processor configured to perform a process for expanding an addition coefficient map that is an output of the addition determination unit.

Abstract translation: 一种图像处理装置包括：运动预测处理器，被配置为检测指示当前图像和参考图像之间的图像间运动的运动矢量; 运动补偿处理器，被配置为通过使用所述运动矢量对所述参考图像执行运动补偿处理并生成运动补偿图像; 加法处理器，被配置为生成通过将当前图像和运动补偿图像相加来减小当前图像的噪声的降噪图像; 加法确定单元，被配置为以运动补偿图像的像素为单位计算加权重量; 下采样处理器，被配置为执行用于减少当前图像和运动补偿图像的处理; 以及上采样处理器，被配置为执行用于扩展作为所述相加确定单元的输出的加法系数映射的处理。

公开(公告)号：US08269843B2

公开(公告)日：2012-09-18

申请号：US12642681

申请日：2009-12-18

Applicant: Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

Inventor： Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

IPC: H04N5/228

CPC classification number: H04N5/23248 ,  H04N5/145 ,  H04N5/23254 ,  H04N5/23267

Abstract: An image processing apparatus includes: a section that detects a local motion vector for each block forming an image from a standard image and a reference image; a section that executes motion compensation on the reference image employing the local motion vector to generate a local motion-compensated image; a section that calculates a single global motion vector for the entire standard image and the entire reference image employing the local motion vector and that executes motion compensation on the reference image employing the global motion vector to generate a global motion-compensated image; and a section that calculates respective reliabilities of the local motion-compensated image and the global motion-compensated image in units of image regions and that executes a process to synthesize pixel values of the local motion-compensated image and pixel values of the global motion-compensated image in accordance with the reliabilities to generate a blended motion-compensated image.

Abstract translation: 一种图像处理装置包括：从标准图像和参考图像检测形成图像的每个块的局部运动矢量的部分; 使用局部运动矢量对参考图像执行运动补偿以产生局部运动补偿图像的部分; 计算整个标准图像的单个全局运动矢量和采用局部运动矢量的整个参考图像并且使用全局运动矢量对参考图像执行运动补偿以产生全局运动补偿图像的部分; 以及以图像区域为单位计算局部运动补偿图像和全局运动补偿图像的各个可靠性的部分，并且执行合成局部运动补偿图像的像素值和全局运动补偿图像的像素值的处理， 根据可靠性生成混合运动补偿图像的补偿图像。

公开(公告)号：US08620109B2

公开(公告)日：2013-12-31

申请号：US13100195

申请日：2011-05-03

Applicant: Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

Inventor： Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

IPC: G06K9/32

CPC classification number: G06T3/4053

Abstract: Disclosed herein is an image processing apparatus including an up-sampling section configured to carry out up-sampling processing in order to generate an up-sampled image, a motion-compensated image generation section configured to generate a motion-compensated image as a result of correction processing to adjust a referenced image having the second resolution to a photographing-object position on the up-sampled image by making use of information on a difference between the up-sampled image and the referenced image, a blending processing section configured to generate a blended image as a result of blending processing to blend the up-sampled image with the referenced image, and an output-image generation section configured to receive and process the blended image as well as the up-sampled image in order to generate an output blended image obtained by blending a super-resolution processing-result image with a noise-reduction processing-result image.

Abstract translation: 本文公开了一种图像处理装置，包括：上采样部，被配置为执行上采样处理以生成上采样图像;运动补偿图像生成部，被配置为生成作为运动补偿图像的结果的运动补偿图像 校正处理，通过利用关于上采样图像和参考图像之间的差异的信息，将具有第二分辨率的参考图像调整到上取样图像上的拍摄对象位置，混合处理部分， 混合图像作为混合处理以将上采样图像与参考图像混合的结果;以及输出图像生成部分，被配置为接收并处理混合图像以及上采样图像，以便产生输出混合 通过将超分辨率处理结果图像与降噪处理结果图像混合而获得的图像。

公开(公告)号：US08311282B2

公开(公告)日：2012-11-13

申请号：US13030447

申请日：2011-02-18

Applicant: Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

Inventor： Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

IPC: G06K9/00

CPC classification number: G06T5/003 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20201

Abstract: An image processing apparatus includes: a motion prediction processing unit detecting an inter-image motion between a standard image and a reference image; a motion compensation processing unit generating a motion-compensated image by moving the reference image so as to be aligned with the standard image in a pixel position; an addition processing unit generating a noise-reduced image from which noise of the standard image is reduced; and an addition determination unit calculating an addition weight of the motion-compensated image. The addition determination unit includes a first motion region detection unit calculating a motion region determination value, a second motion region detection unit calculating a motion region determination value, a control map generation unit selecting and outputting one of two motion region determination values, a noise determination table generation unit generating or correcting a noise determination table, and an addition determination processing execution unit determining the addition weight.

Abstract translation: 一种图像处理装置，包括：运动预测处理单元，检测标准图像与参考图像之间的图像间运动; 运动补偿处理单元，通过移动所述参考图像以在像素位置与所述标准图像对准来生成运动补偿图像; 生成降低了标准图像噪声的降噪图像的加法处理单元; 以及加法确定单元，计算运动补偿图像的加权重量。 加法确定单元包括计算运动区域确定值的第一运动区域检测单元，计算运动区域确定值的第二运动区域检测单元，选择并输出两个运动区域确定值之一的控制图生成单元，噪声判定 生成或校正噪声判定表的表生成单元，以及确定加权重的加法确定处理执行单元。

公开(公告)号：US08169490B2

公开(公告)日：2012-05-01

申请号：US12645211

申请日：2009-12-22

Applicant: Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

Inventor： Yuhi Kondo ,  Takefumi Nagumo ,  Jun Luo

IPC: H04N5/225

CPC classification number: H04N5/23248 ,  H04N5/23254 ,  H04N5/23267

Abstract: An image processing apparatus includes a motion prediction processor configured to detect a motion vector that indicates inter-image motion between a current image and a reference image; a motion compensation processor configured to perform a motion compensation process for the reference image by using the motion vector and generate a motion compensated image; an addition processor configured to generate a noise reduced image in which noise of the current image is reduced by adding the current image and the motion compensated image; an addition determination unit configured to compute an addition weight in units of pixels of the motion compensated image; a down-sampling processor configured to perform a process for reducing the current image and the motion compensated image; and an up-sampling processor configured to perform a process for expanding an addition coefficient map that is an output of the addition determination unit.

Abstract translation: 一种图像处理装置包括：运动预测处理器，被配置为检测指示当前图像和参考图像之间的图像间运动的运动矢量; 运动补偿处理器，被配置为通过使用所述运动矢量对所述参考图像执行运动补偿处理并生成运动补偿图像; 加法处理器，被配置为生成通过将当前图像和运动补偿图像相加来减小当前图像的噪声的降噪图像; 加法确定单元，被配置为以运动补偿图像的像素为单位计算加权重量; 下采样处理器，被配置为执行用于减少当前图像和运动补偿图像的处理; 以及上采样处理器，被配置为执行用于扩展作为所述相加确定单元的输出的加法系数映射的处理。

公开(公告)号：US20110274368A1

公开(公告)日：2011-11-10

申请号：US13082920

申请日：2011-04-08

Applicant: Yuhi KONDO ,  Takefumi Nagumo ,  Jun Luo

Inventor： Yuhi KONDO ,  Takefumi Nagumo ,  Jun Luo

IPC: G06K9/40

CPC classification number: G06T3/4053

Abstract: An image processing device includes: an upsampling section; a motion compensated image generating section; a blend processing section; and an output image generating section.

Abstract translation: 图像处理装置包括：上采样部; 运动补偿图像生成部; 混合处理部分; 和输出图像生成部。

公开(公告)号：US20110235942A1

公开(公告)日：2011-09-29

申请号：US13030447

申请日：2011-02-18

Applicant: Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

Inventor： Jun Luo ,  Takefumi Nagumo ,  Yuhi Kondo

IPC: G06K9/40

CPC classification number: G06T5/003 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20201

Abstract: An image processing apparatus includes: a motion prediction processing unit detecting an inter-image motion between a standard image and a reference image; a motion compensation processing unit generating a motion-compensated image by moving the reference image so as to be aligned with the standard image in a pixel position; an addition processing unit generating a noise-reduced image from which noise of the standard image is reduced; and an addition determination unit calculating an addition weight of the motion-compensated image. The addition determination unit includes a first motion region detection unit calculating a motion region determination value, a second motion region detection unit calculating a motion region determination value, a control map generation unit selecting and outputting one of two motion region determination values, a noise determination table generation unit generating or correcting a noise determination table, and an addition determination processing execution unit determining the addition weight.

Abstract translation: 一种图像处理装置，包括：运动预测处理单元，检测标准图像与参考图像之间的图像间运动; 运动补偿处理单元，通过移动所述参考图像以在像素位置与所述标准图像对准来生成运动补偿图像; 生成降低了标准图像噪声的降噪图像的加法处理单元; 以及加法确定单元，计算运动补偿图像的加权重量。 加法确定单元包括计算运动区域确定值的第一运动区域检测单元，计算运动区域确定值的第二运动区域检测单元，选择并输出两个运动区域确定值之一的控制图生成单元，噪声判定 生成或校正噪声判定表的表生成单元，以及确定加权重的加法确定处理执行单元。