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公开(公告)号：US08238687B1
公开(公告)日：2012-08-07
申请号：US12236261
申请日：2008-09-23
申请人： Suk Hwan Lim , Pavel Kisilev
发明人： Suk Hwan Lim , Pavel Kisilev
IPC分类号： G06K9/40
摘要： A set of local noise variation values characterizing local noise levels in the input image is calculated. Local contrast enhancement is performed on image forming element values derived from the input image to produce a contrast enhanced image. Values of local noise amplification caused by the local contrast enhancement are ascertained. Noise in the contrast enhanced image is reduced based on the set of local noise variation values and the local noise amplification values.
摘要翻译： 计算表征输入图像中的局部噪声水平的一组局部噪声变化值。 对从输入图像导出的图像形成元素值执行局部对比度增强以产生对比度增强图像。 确定由局部对比度增强引起的局部噪声放大值。 基于本地噪声变化值和局部噪声放大值的集合，减小对比度增强图像中的噪声。
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公开(公告)号：US20120069195A1
公开(公告)日：2012-03-22
申请号：US12885528
申请日：2010-09-19
IPC分类号： H04N17/02
CPC分类号： H04N17/002 , H04N5/3572 , H04N17/02
摘要： A pattern includes a spatial configuration of color codes. Each color code is a unique configuration of colors selected from a number of basis colors. The color codes each include the same number of colors.
摘要翻译： 模式包括颜色代码的空间配置。 每个颜色代码是从多种基本颜色中选择的颜色的独特配置。 颜色代码各自包含相同数量的颜色。
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公开(公告)号：US07865032B2
公开(公告)日：2011-01-04
申请号：US11534622
申请日：2006-09-22
申请人： Peng Wu , Suk Hwan Lim
发明人： Peng Wu , Suk Hwan Lim
CPC分类号： G06T7/41 , G06T2207/20021
摘要： The present invention provides methods, systems and a machine readable medium including machine readable code for identifying an ill-exposed image. An image including a first image block is received. The luminance data and the texture energy data associated with the first image block are assessed. A determination is made regarding whether the received image is an ill-exposed image based on the assessment of the luminance data and the assessment of the texture energy data associated with the first image block.
摘要翻译： 本发明提供了方法，系统和机器可读介质，其包括用于识别不良曝光图像的机器可读代码。 接收包括第一图像块的图像。 评估与第一图像块相关联的亮度数据和纹理能量数据。 基于对亮度数据的评估和与第一图像块相关联的纹理能量数据的评估，确定接收到的图像是否是不良曝光图像。
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公开(公告)号：US20100066849A1
公开(公告)日：2010-03-18
申请号：US12375669
申请日：2007-07-24
申请人： Suk Hwan Lim , D. Amnon Silverstein , Qian Lin
发明人： Suk Hwan Lim , D. Amnon Silverstein , Qian Lin
IPC分类号： H04N5/228
CPC分类号： H04N5/2351 , H04N5/343 , H04N5/347 , H04N5/351
摘要： An image processing method and device are described. The method includes the steps of capturing the contents a scene in a first pass (310), determining a binning pattern for pixels representing the scene (350) based on measured brightness values of the pixels (320) and capturing contents of the image in a second pass using the binning pattern (360).
摘要翻译： 描述图像处理方法和装置。 该方法包括以下步骤：在第一遍（310）中捕获场景的内容，基于所测量的像素的亮度值（320）和捕获图像的内容来确定表示场景（350）的像素的合并模式 使用分档模式（360）进行第二遍。
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公开(公告)号：US07643699B2
公开(公告)日：2010-01-05
申请号：US11174685
申请日：2005-07-05
申请人： Suk Hwan Lim , Pavel Kisilev
发明人： Suk Hwan Lim , Pavel Kisilev
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/003 , G06T5/008 , G06T5/20 , G06T2207/20012 , G06T2207/20028 , G06T2207/20192
摘要： Processing of a digital image includes applying a function to a plurality of pixels in the image, the function relating a noise statistic to pixel intensity values. By applying the noise statistic function, a noise statistic value is produced for each of the pixels. Each of the pixels is processed with respect to its noise statistic value.
摘要翻译： 数字图像的处理包括将功能应用于图像中的多个像素，该功能将噪声统计量与像素强度值相关联。 通过应用噪声统计功能，对于每个像素产生噪声统计值。 相对于其噪声统计值处理每个像素。
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公开(公告)号：US07643062B2
公开(公告)日：2010-01-05
申请号：US11148985
申请日：2005-06-08
申请人： D. Amnon Silverstein , Suk Hwan Lim
发明人： D. Amnon Silverstein , Suk Hwan Lim
IPC分类号： H04N5/228
CPC分类号： H04N5/23248 , H04N5/23258 , H04N5/23287
摘要： A method and system for deblurring an image based on motion tracking. light is recorded at an image sensor of an imaging device to capture an image. motion of said image sensor is recorded at a motion sensor of the imaging device during the recording of the light at the image sensor. A blur kernel is generated based on the motion.
摘要翻译： 一种基于运动跟踪去除图像的方法和系统。 光被记录在成像装置的图像传感器上以捕获图像。 在图像传感器记录光时，所述图像传感器的运动被记录在成像装置的运动传感器上。 基于运动生成模糊内核。
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公开(公告)号：US20090034863A1
公开(公告)日：2009-02-05
申请号：US11888395
申请日：2007-07-31
申请人： Pavel Kisilev , Suk Hwan Lim
发明人： Pavel Kisilev , Suk Hwan Lim
IPC分类号： G06K9/40
CPC分类号： G06T5/20 , G06T5/004 , G06T2207/20016
摘要： Embodiments of the present invention employ robust filtering at each of a number of scales, or resolutions, within a signal, such as a still image or video sequence. In certain embodiments of the present invention, robust filtering comprises or includes a non-linear neighborhood operation at each scale in order to produce both a denoised, sharpened and contrast-enhanced signal and a correction signal at each scale. Correction signals and sharpened and contrast-enhanced signals are combined to produce a denoised, sharpened and contrast-enhanced output signal. Scale-appropriate enhancements at each scale or resolution, including denoising, sharpening and contrast enhancement, ameliorate artifacts introduced by re-enhancement, at a second scale or resolution, features previously enhanced at another scale or resolution and inhibit over enhancement.
摘要翻译： 本发明的实施例在诸如静止图像或视频序列之类的信号中的多个尺度或分辨率的每一个处采用鲁棒滤波。 在本发明的某些实施例中，鲁棒滤波包括或包括每个尺度上的非线性邻域运算，以便产生去噪，锐化和对比度增强的信号以及每个比例的校正信号。 校正信号和锐化和对比度增强的信号被组合以产生去噪，锐化和对比度增强的输出信号。 在每个尺度或分辨率下进行尺度适应的增强，包括去噪，锐化和对比度增强，通过再次增强，第二尺度或分辨率引入的人为因素，以先前在另一个尺度或分辨率下增强的特征，并抑制过度增强。
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公开(公告)号：US09412164B2
公开(公告)日：2016-08-09
申请号：US12787329
申请日：2010-05-25
申请人： Nelson Liang An Chang , Suk Hwan Lim , Feng Tang
发明人： Nelson Liang An Chang , Suk Hwan Lim , Feng Tang
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/30208
摘要： A reference set of image features is determined from an electronic data file specifying a reference image in a reference coordinate space. Rendering information describing a physical rendering of the reference image is ascertained. Calibration-enabling data is derived from the reference set of the image features and the ascertained rendering information. The calibration-enabling data is provided to calibrate an imaging system. The calibration-enabling data may be stored. The imaging system may capture an image of the physical rendering of the reference image in relation to a capture coordinate space. An extracted set of image features may be extracted from the captured image. Respective ones of the image features in the reference and extracted sets may be matched. The imaging system may be calibrated based on matched ones of the image features and the rendering information.
摘要翻译： 从指定参考坐标空间中的参考图像的电子数据文件确定参考图像特征集。 确定描述参考图像的物理渲染的渲染信息。 校准使能数据从图像特征的参考集和确定的渲染信息中导出。 提供校准使能数据以校准成像系统。 可以存储校准使能数据。 成像系统可以相对于捕获坐标空间捕获参考图像的物理渲染的图像。 可以从捕获的图像中提取一组提取的图像特征。 可以匹配参考和提取集中的图像特征中的各个图像特征。 成像系统可以基于匹配的图像特征和渲染信息进行校准。
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公开(公告)号：US09142012B2
公开(公告)日：2015-09-22
申请号：US13484991
申请日：2012-05-31
申请人： Suk Hwan Lim , Mark A. Zimmer
发明人： Suk Hwan Lim , Mark A. Zimmer
CPC分类号： G06T5/20 , G06T5/002 , G06T2207/10024
摘要： Systems and methods for reducing chrominance (chroma) noise in image data are provided. In one example of such a method, image data in YCC format may be received into logic of an image signal processor. Using the logic, noise may be filtered from a first chrominance component or a second chrominance component, or both, of the image data, using a sparse filter and a noise threshold. The noise threshold may be determined based at least in part on two of the components of the YCC image data.
摘要翻译： 提供了降低图像数据中色度（色度）噪声的系统和方法。 在这种方法的一个示例中，YCC格式的图像数据可以被接收到图像信号处理器的逻辑中。 使用该逻辑，可以使用稀疏滤波器和噪声阈值从图像数据的第一色度分量或第二色度分量或两者中滤除噪声。 噪声阈值可以至少部分地基于YCC图像数据的两个分量来确定。
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公开(公告)号：US08953882B2
公开(公告)日：2015-02-10
申请号：US13485299
申请日：2012-05-31
申请人： Suk Hwan Lim , D. Amnon Silverstein , Mark A. Zimmer , Guy Cote
发明人： Suk Hwan Lim , D. Amnon Silverstein , Mark A. Zimmer , Guy Cote
CPC分类号： G06T1/20 , H04N17/002
摘要： The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may compute noise statistics associated with image data by receiving a frame of the image data having a plurality of pixels. The image processing pipeline may then identify a plurality of portions of the frame of the image data such that each portion of the plurality of portions has a flat surface. The image processing pipeline may then calculate a plurality of gradients for each portion of the plurality of portions, determine one or more dominant gradient orientations for each portion of the plurality of portions, and generate a histogram that represents a plurality of dominant gradient orientations that corresponds to the plurality of portions. After generating the histogram, the image processing pipeline may store the histogram, which may represent the noise statistics, in a memory.
摘要翻译： 本公开通常涉及用于图像数据处理的系统和方法。 在某些实施例中，图像处理流水线可以通过接收具有多个像素的图像数据的帧来计算与图像数据相关联的噪声统计。 然后，图像处理流水线可以识别图像数据的帧的多个部分，使得多个部分的每个部分具有平坦表面。 然后，图像处理流水线可以为多个部分的每个部分计算多个梯度，为多个部分的每个部分确定一个或多个主要梯度取向，并且生成表示对应于多个部分的多个主要梯度取向的直方图 到多个部分。 在生成直方图之后，图像处理流水线可以将可以表示噪声统计的直方图存储在存储器中。
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