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1. 发明申请

US20090185058A1 APPARATUS AND METHOD FOR NOISE REDUCTION WITH 3D LUT 有权
标题翻译：使用3D LUT进行噪声降低的装置和方法
公开(公告)号：US20090185058A1
公开(公告)日：2009-07-23
申请号：US12355713
申请日：2009-01-16
申请人： Dudi Vakrat , Ben-Zion Shaick
发明人： Dudi Vakrat , Ben-Zion Shaick
IPC分类号： H04N5/217
CPC分类号： H04N5/357
摘要： A device for noise reduction is provided. The device includes a noise reduction three-dimensional look-up table (LUT) and a noise reduction unit. The noise reduction LUT transforms an input image into a noise reduction factor and noise reduction threshold for each color component of each pixel of the input image. The noise reduction unit performs noise reduction on the input image based on the noise reduction factors and noise reduction thresholds determined from the noise reduction LUT.
摘要翻译：提供了用于降噪的装置。该装置包括降噪三维查找表（LUT）和降噪单元。降噪LUT将输入图像转换为输入图像的每个像素的每个颜色分量的降噪因子和降噪阈值。噪声降低单元基于从降噪LUT确定的噪声降低因子和噪声降低阈值对输入图像进行噪声降低。

2. 发明申请

US20110317045A1 ADVANCED NOISE REDUCTION IN DIGITAL CAMERAS 有权
标题翻译：数字摄像机中的高级噪声减少
公开(公告)号：US20110317045A1
公开(公告)日：2011-12-29
申请号：US13231060
申请日：2011-09-13
申请人： Dudi Vakrat , Noam Korem , Victor Pinto
发明人： Dudi Vakrat , Noam Korem , Victor Pinto
IPC分类号： H04N9/64
CPC分类号： H04N5/357 , G06T5/00 , G06T5/002 , H04N5/217 , H04N5/23229 , H04N9/646
摘要： A noise reduction apparatus for digital cameras is presented that includes groups of one or more connected non-linear filter units. Each of the filter unit groups are driven by decimated input image data at a different level of decimation and the output of at least one of these filter unit groups serves as one of a plurality of inputs to another filter unit group driven at a different decimation level. Filtered image data from one or more filter unit groups is adaptively combined in response to one or more image metrics related to one or more local regional image characteristics.
摘要翻译：提供了一种用于数字照相机的降噪装置，其包括一个或多个连接的非线性滤波器单元的组。滤波器单元组中的每一个以抽取的不同抽取级别的抽取的输入图像数据驱动，并且这些滤波器单元组中的至少一个的输出用作到以不同抽取级别驱动的另一个滤波器单元组的多个输入之一。响应于与一个或多个局部区域图像特征相关的一个或多个图像度量自适应地组合来自一个或多个过滤器单元组的滤波图像数据。

3. 发明申请

US20110242371A1 ADVANCED NOISE REDUCTION IN DIGITAL CAMERAS 审中-公开
标题翻译：数字摄像机中的高级噪声减少
公开(公告)号：US20110242371A1
公开(公告)日：2011-10-06
申请号：US13160775
申请日：2011-06-15
申请人： Dudi Vakrat , Noam Korem , Victor Pinto
发明人： Dudi Vakrat , Noam Korem , Victor Pinto
IPC分类号： H04N5/217 , H04N5/21
CPC分类号： H04N5/217 , G06T5/002 , G06T2207/20192 , H04N5/23229
摘要： A noise reduction apparatus is presented that includes groups of one or more serially connected non-linear filter units. Each of the filter unit groups are driven by decimated input image data at a different level of decimation and the output of at least one of these groups serves as one of a plurality of inputs to another group driven at a different decimation level.
摘要翻译：提出了一种降噪装置，其包括一个或多个串联的非线性滤波器单元的组。每个滤波器单元组由抽取的不同抽取级别的抽取的输入图像数据驱动，并且这些组中的至少一个的输出用作到以不同抽取级别驱动的另一组的多个输入中的一个。

4. 发明授权

US07889942B2 Dynamic range compensation-dependent noise reduction 有权
标题翻译：动态范围补偿依赖降噪
公开(公告)号：US07889942B2
公开(公告)日：2011-02-15
申请号：US11754170
申请日：2007-05-25
申请人： Dudi Vakrat
发明人： Dudi Vakrat
IPC分类号： G06K9/40
CPC分类号： H04N5/357 , G06T5/002 , G06T5/009 , H04N5/243
摘要： Methods and corresponding apparatus are presented that perform dynamic range compensation (DRC) and noise reduction (NR) together on a pixel-by-pixel basis, adjusting the noise reduction parameters in response to the dynamic range compensation decisions. By such a modification of image noise reduction parameters based on the dynamic range compensation gain or, more generally, other such factors, these techniques make it possible to perform DRC on noisy images, achieving an image with low and uniform noise levels.
摘要翻译：提出了在逐像素的基础上一起执行动态范围补偿（DRC）和降噪（NR）的方法和相应的装置，响应于动态范围补偿决定来调整降噪参数。通过基于动态范围补偿增益的图像噪声降低参数的这种修改，或者更一般地，其他这样的因素，这些技术使得可以在噪声图像上执行DRC，实现具有低和均匀噪声水平的图像。

5. 发明授权

US08654240B2 Optical chromatic aberration correction and calibration in digital cameras 失效
标题翻译：数码相机中的光学色差校正和校准
公开(公告)号：US08654240B2
公开(公告)日：2014-02-18
申请号：US13342153
申请日：2012-01-02
申请人： Dudi Vakrat , Victor Pinto
发明人： Dudi Vakrat , Victor Pinto
IPC分类号： H04N5/225 , H04N17/02 , G06K9/40
CPC分类号： G03B43/00 , G02B27/0025 , H04N9/045
摘要： Methods and the corresponding device are presented for the correction of lateral chromatic aberration within a digital camera or other imaging device, using calibration approaches that do not require previously acquired lens data to effect the correction. An in-camera auto-calibration procedure is performed on the attached lens, such as when a lens is exchanged, and extracts parameters required for chromatic aberration correction, respecting zoom and focus, from one or more captured images. Based on image data extracted as a plurality of channels of a chromatic decomposition of the image, the chromatic aberration information for the lens is extracted. From the chromatic aberration information, the correction factors for the lens are determined.
摘要翻译：呈现方法和相应的装置，用于校正数字照相机或其他成像装置内的横向色差，使用不需要先前获取的透镜数据来进行校正的校准方法。在所附镜头上执行相机内自动校准程序，例如当更换镜头时，从一个或多个拍摄图像中提取色像差校正所涉及的变焦和聚焦所需的参数。基于作为图像的色分解的多个通道提取的图像数据，提取透镜的色差信息。根据色差信息，确定透镜的校正系数。

6. 发明授权

US08553978B2 System and method for providing multi resolution purple fringing detection and correction 有权
标题翻译：提供多分辨率紫外线检测和校正的系统和方法
公开(公告)号：US08553978B2
公开(公告)日：2013-10-08
申请号：US13206788
申请日：2011-08-10
申请人： Yochay Tzur , Dudi Vakrat
发明人： Yochay Tzur , Dudi Vakrat
IPC分类号： G06K9/00 , G06K9/34
CPC分类号： H04N9/045 , G06T5/006 , G06T2207/10024 , H04N9/68
摘要： A system, method, and computer program product for automatically detecting and correcting the “purple fringing” effect, typically due to axial chromatic aberration in imaging devices, are disclosed and claimed. A chromaticity score is computed, denoting the amount of false color related to a purple fringing artifact. A locality score is computed, denoting the similarity of the purple fringing region to a shape of a narrow ridge, which is typical for purple fringing artifacts. A saturation score is also computed, denoting the proximity of a pixel to saturated pixels. These scores are then combined into a detection score, denoting pixels having strong indications they share properties common to pixels of purple fringing artifacts. The detected pixels are then correspondingly corrected, e.g. by chroma suppression. The scoring and correction may be performed over combinations of image resolutions, e.g. an original version and potentially numerous downscaled versions.
摘要翻译：用于自动检测和校正通常由成像装置中的轴向色差引起的“紫色边缘”效应的系统，方法和计算机程序产品被公开并要求保护。计算色度分数，表示与紫色边缘人造物相关的假色数量。计算一个地方分数，表示紫色边缘区域与窄脊的形状的相似度，这对于紫色边缘人造物是典型的。还计算饱和度分数，表示像素与饱和像素的接近程度。然后将这些分数组合成检测分数，表示具有强指示的像素，它们共享紫色边缘伪像的像素共有的属性。然后相应地校正检测到的像素，例如。通过色度抑制。评分和校正可以通过图像分辨率的组合来执行，例如，原始版本和潜在的许多缩减版本。

7. 发明授权

US08106972B2 Apparatus and method for noise reduction with 3D LUT 有权
标题翻译：使用3D LUT进行降噪的装置和方法
公开(公告)号：US08106972B2
公开(公告)日：2012-01-31
申请号：US12355713
申请日：2009-01-16
申请人： Dudi Vakrat , Ben-Zion Shaick
发明人： Dudi Vakrat , Ben-Zion Shaick
IPC分类号： H04N5/217 , H04N5/335
CPC分类号： H04N5/357
摘要： A device for noise reduction is provided. The device includes a noise reduction three-dimensional look-up table (LUT) and a noise reduction unit. The noise reduction LUT transforms an input image into a noise reduction factor and noise reduction threshold for each color component of each pixel of the input image. The noise reduction unit performs noise reduction on the input image based on the noise reduction factors and noise reduction thresholds determined from the noise reduction LUT.
摘要翻译：提供了用于降噪的装置。该装置包括降噪三维查找表（LUT）和降噪单元。降噪LUT将输入图像转换为输入图像的每个像素的每个颜色分量的降噪因子和降噪阈值。噪声降低单元基于从降噪LUT确定的噪声降低因子和噪声降低阈值对输入图像进行噪声降低。

8. 发明申请

US20110069204A1 METHOD AND APPARATUS FOR IMAGE CORRECTION 审中-公开
标题翻译：用于图像校正的方法和装置
公开(公告)号：US20110069204A1
公开(公告)日：2011-03-24
申请号：US12888296
申请日：2010-09-22
申请人： Dudi Vakrat , Haim Grosman , Assaf Weissman
发明人： Dudi Vakrat , Haim Grosman , Assaf Weissman
IPC分类号： H04N9/68 , H04N9/64
CPC分类号： H04N5/145 , H04N5/3595 , H04N5/372
摘要： A method and apparatus are provided for correcting image data of an image sensor. In on embodiment, a method includes receiving sensor data including image data having at least one artifact and smear sensitive data, detecting motion of one or more light sources associated with the artifact and characterizing the motion of the one or more light sources to provide a motion characteristic. The method may further include correcting at least a portion of the image data based on the smear sensitive data and the motion characteristic of the one or more light sources, wherein the correcting is responsive to vertical motion and non-vertical motion of the one or more light sources.
摘要翻译：提供了一种用于校正图像传感器的图像数据的方法和装置。在实施例中，一种方法包括接收传感器数据，包括具有至少一个伪像和拖尾敏感数据的图像数据，检测与该伪像相关联的一个或多个光源的运动并表征一个或多个光源的运动以提供运动特性。所述方法还可以包括基于所述拖影敏感数据和所述一个或多个光源的运动特征来校正所述图像数据的至少一部分，其中所述校正响应所述一个或多个光源的垂直运动和非垂直运动光源。

9. 发明申请

US20080291330A1 Advanced Noise Reduction in Digital Cameras 有权
标题翻译：数码相机先进的降噪技术
公开(公告)号：US20080291330A1
公开(公告)日：2008-11-27
申请号：US11754202
申请日：2007-05-25
申请人： Dudi Vakrat , Noam Korem , Victor Pinto
发明人： Dudi Vakrat , Noam Korem , Victor Pinto
IPC分类号： H04N5/00
CPC分类号： H04N5/217 , G06T5/002 , G06T2207/20192 , H04N5/23229
摘要： A noise reduction apparatus is presented that includes groups of one or more serially connected non-linear filter units. Each of the filter unit groups are driven by decimated input image data at a different level of decimation and the output of at least one of these groups serves as one of a plurality of inputs to another group driven at a different decimation level.
摘要翻译：提出了一种降噪装置，其包括一个或多个串联的非线性滤波器单元的组。每个滤波器单元组由抽取的不同抽取级别的抽取的输入图像数据驱动，并且这些组中的至少一个的输出用作到以不同抽取级别驱动的另一组的多个输入中的一个。

10. 发明授权

US08582878B1 Purple fringing automatic detection and correction 有权
标题翻译：紫色边缘自动检测和校正
公开(公告)号：US08582878B1
公开(公告)日：2013-11-12
申请号：US13206763
申请日：2011-08-10
申请人： Yochay Tzur , Dudi Vakrat
发明人： Yochay Tzur , Dudi Vakrat
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： H04N9/045 , G06T5/006 , G06T2207/10024 , H04N9/68
摘要： A system, method, and computer program product for automatically detecting and correcting the “purple fringing” effect, typically due to axial chromatic aberration in imaging devices, are disclosed and claimed. A chromaticity score is computed, denoting the amount of false color related to a purple fringing artifact. A locality score is computed, denoting the similarity of the purple fringing region to a shape of a narrow ridge, which is typical for purple fringing artifacts. A saturation score is also computed, denoting the proximity of a pixel to saturated pixels. These scores are then combined into a detection score, denoting pixels having strong indications they share properties common to pixels of purple fringing artifacts. The detected pixels are then correspondingly corrected, e.g. by chroma suppression. The scoring and correction may be performed over combinations of image resolutions, e.g. an original version and potentially numerous downscaled versions.
摘要翻译：用于自动检测和校正通常由成像装置中的轴向色差引起的“紫色边缘”效应的系统，方法和计算机程序产品被公开并要求保护。计算色度分数，表示与紫色边缘人造物相关的假色数量。计算一个地方分数，表示紫色边缘区域与窄脊的形状的相似度，这对于紫色边缘人造物是典型的。还计算饱和度分数，表示像素与饱和像素的接近程度。然后将这些分数组合成检测分数，表示具有强指示的像素，它们共享紫色边缘伪像的像素共有的属性。然后相应地校正检测到的像素，例如。通过色度抑制。评分和校正可以通过图像分辨率的组合来执行，例如，原始版本和潜在的许多缩减版本。

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