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111. 发明申请

US20060126134A1 Camera-based method for calibrating color displays 失效
公开(公告)号：US20060126134A1
公开(公告)日：2006-06-15
申请号：US11012994
申请日：2004-12-15
申请人： Raja Bala , Karen Braun , Robert Rolleston
发明人： Raja Bala , Karen Braun , Robert Rolleston
IPC分类号： H04N1/46
CPC分类号： H04N1/6033 , H04N9/3194
摘要： Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a method for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which corresponds to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.

112. 发明申请

US20050281459A1 Method for scanner characterization for color measurement of printed media having four or more colorants 失效
标题翻译：用于具有四种或更多种着色剂的印刷介质的颜色测量的扫描器表征方法
公开(公告)号：US20050281459A1
公开(公告)日：2005-12-22
申请号：US10871114
申请日：2004-06-18
申请人： Raja Bala , Judith Stinehour , Gaurav Sharma
发明人： Raja Bala , Judith Stinehour , Gaurav Sharma
IPC分类号： G06F15/00 , G06K9/00 , H04N1/407 , H04N1/60
CPC分类号： H04N1/4078 , H04N1/6022
摘要： The present invention is directed to a method and apparatus for the improved characterization of an image scanner or similar image input terminal so as to enable the device to be employed in the measurement and analysis of color images. The invention uses a family of input device characterization targets, each varying in primary colorants and at a fixed level of black (K) colorant. A corresponding family of input device characterizations is derived, one for each level of K, and the final transformation is prepared such that the characterization includes K as an additional input—thereby improving the characterization and accuracy of the input device.
摘要翻译：本发明涉及一种用于改进图像扫描仪或类似图像输入端子的表征的方法和装置，以便能够将该装置用于彩色图像的测量和分析。本发明使用一系列输入设备表征目标，每个变色原色和在黑（K）着色剂的固定水平。导出相应的输入设备特性系列，每个级别为K一个，并且准备最终变换，使得表征包括K作为附加输入，从而改善输入设备的表征和精度。

113. 发明申请

US20050207641A1 Color to grayscale conversion method and apparatus 有权
标题翻译：彩色到灰度转换方法和装置
公开(公告)号：US20050207641A1
公开(公告)日：2005-09-22
申请号：US10802130
申请日：2004-03-16
申请人： Raja Bala , Reiner Eschbach
发明人： Raja Bala , Reiner Eschbach
IPC分类号： G03F3/08 , G06K9/00 , G06T1/00 , G06T5/00 , H04N1/40 , H04N1/409 , H04N1/46 , H04N1/60 , H04N9/64
CPC分类号： H04N1/40012 , H04N5/208 , H04N9/77
摘要： A method and apparatus for translating color to grayscale images, wherein at least some pixels of the color image having the same color are mapped to different grays in the grayscale image depending on the spatial surround of each pixel. Further, the method and apparatus may include applying a high pass filter to at least one chrominance component of a color image to generate at least one high pass filtered chrominance component, and adjusting a luminance component of the color image based upon the at least one high pass filtered chrominance component.
摘要翻译：一种用于将颜色转换为灰度图像的方法和装置，其中根据每个像素的空间环绕，具有相同颜色的彩色图像的至少一些像素被映射到灰度图像中的不同灰度。此外，所述方法和装置可以包括将高通滤波器应用于彩色图像的至少一个色度分量以产生至少一个高通滤波色度分量，并且基于至少一个高频来调整彩色图像的亮度分量通过滤色度分量。

114. 发明授权

US06947597B2 Soft picture/graphics classification system and method 失效
标题翻译：软图片/图形分类系统和方法
公开(公告)号：US06947597B2
公开(公告)日：2005-09-20
申请号：US09965880
申请日：2001-09-28
申请人： Ying-wei Lin , Stuart A. Schweid , Jeng-nan Shiau , Raja Bala , Zhigang Fan
发明人： Ying-wei Lin , Stuart A. Schweid , Jeng-nan Shiau , Raja Bala , Zhigang Fan
IPC分类号： G06K9/20 , G06T5/00 , H04N1/40 , G06K9/62
CPC分类号： H04N1/40062 , G06K9/00456
摘要： A method and system for image processing, in conjunction with classification of images between natural pictures and synthetic graphics, using SGLD texture (e.g., variance, bias, skewness, and fitness), color discreteness (e.g., R_L, R_U, and R_V normalized histograms), or edge features (e.g., pixels per detected edge, horizontal edges, and vertical edges) is provided. In another embodiment, a picture/graphics classifier using combinations of SGLD texture, color discreteness, and edge features is provided. In still another embodiment, a “soft” image classifier using combinations of two (2) or more SGLD texture, color discreteness, and edge features is provided. The “soft” classifier uses image features to classify areas of an input image in picture, graphics, or fuzzy classes.
摘要翻译：一种用于图像处理的方法和系统，结合使用SGLD纹理（例如，方差，偏差，偏度和适应度）的自然图像和合成图像之间的图像分类，颜色离散性（例如，R_L，R_U和R_V归一化直方图）或边缘特征（例如，每个检测到的边缘的像素，水平边缘和垂直边缘）。在另一个实施例中，提供了使用SGLD纹理，颜色离散性和边缘特征的组合的图片/图形分类器。在另一个实施例中，提供了使用两（2）或更多SGLD纹理，颜色离散性和边缘特征的组合的“软”图像分类器。 “软”分类器使用图像特征来对图像，图形或模糊类中的输入图像的区域进行分类。

115. 发明申请

US20050128496A1 Spatially varying luminance compression gamut mapping system and method 有权
标题翻译：空间变化的亮度压缩色域映射系统和方法
公开(公告)号：US20050128496A1
公开(公告)日：2005-06-16
申请号：US10733608
申请日：2003-12-11
申请人： Raja Bala
发明人： Raja Bala
IPC分类号： G06T1/00 , G03F3/08 , G06F15/00 , H04N1/46 , H04N1/60
CPC分类号： H04N1/6027 , H04N1/6072
摘要： A system and method for gamut mapping includes a luminance compression algorithm for gamut mapping that varies across different parts of the image. In shadow regions, a soft compression function is applied to bring out the detail. In other regions, including areas with high local contrast, a hard clipping function is applied to preserve local contrast. The algorithm adaptively blends between these two functions to ensure that the overall compression function is spatially smooth. The system and method may also use chrominance information to compute “perceived lightness”, to be used as input to the low-pass filter. Also, the blending function α( ) could be a function of chrominance as well as luminance.
摘要翻译：用于色域映射的系统和方法包括在图像的不同部分上变化的色域映射的亮度压缩算法。在阴影区域，应用软压缩功能来显示细节。在其他区域，包括局部对比度较高的区域，应用硬切割功能来保持局部对比度。该算法自适应地融合了这两个功能，以确保整体压缩功能在空间上平滑。该系统和方法还可以使用色度信息来计算“感知亮度”，以用作低通滤波器的输入。此外，混合函数alpha（）可以是色度以及亮度的函数。

116. 发明申请

US20050128218A1 Method for determining color space of an image 失效
标题翻译：用于确定图像的颜色空间的方法
公开(公告)号：US20050128218A1
公开(公告)日：2005-06-16
申请号：US10733583
申请日：2003-12-11
申请人： Raja Bala
发明人： Raja Bala
IPC分类号： H04N1/60 , G09G5/02 , H04N1/46
CPC分类号： H04N1/60
摘要： A method for determining whether an input image is defined in accordance with a luminance-chrominance color space, includes receiving an input image in three dimensional color space, S1, S2 and S3, where S1 is an image value in the first dimension, S2 is an image value in the second dimension and S3 is an image value in the third dimension; extracting low and high extrema of S1 values in the image; obtaining deviation of S2 and S3 from a predefined neutral axis for all pixels in the image whose S1 value is either the low or the high extremum; testing a condition that certain of the deviations are within predetermined thresholds; and determining, if the condition holds true, that the image is in a luminance-chrominance color space.
摘要翻译：一种用于确定输入图像是否根据亮度色度色空间来定义的方法包括：在三维色彩空间S 1，S 2和S 3中接收输入图像，其中S 1是第一像素中的图像值尺寸，S 2是第二维中的图像值，S 3是第三维中的图像值; 提取图像中S 1值的低和高极值; 对于S 1值为低或高极值的图像中的所有像素，获得S 2和S 3与预定中性轴的偏差; 测试某些偏差在预定阈值内的条件; 以及如果所述条件成立，则确定所述图像在亮度 - 色度色彩空间中。

117. 发明申请

US20050036171A1 System and method for selecting the best set of devices for rendering color documents 有权
公开(公告)号：US20050036171A1
公开(公告)日：2005-02-17
申请号：US10641205
申请日：2003-08-14
申请人： Raja Bala , Gaurav Sharma , Robert Rolleston
发明人： Raja Bala , Gaurav Sharma , Robert Rolleston
IPC分类号： H04N1/50 , H04N1/56 , H04N1/60
CPC分类号： H04N1/603 , H04N1/6058
摘要： The system for selecting a best device for rendering a color document involves first determining the types of color data included in the color document to be printed. Once the type of color data has been determined, the color characteristics are matched against the strengths of the available output devices to obtain a list of devices best suited for this particular color print job. At least one device from the list of best devices is selected and the color document is rendered onto the selected device. Preferably, the types of color data involved are determined by the mix of defined colorimetry and undefined colorimetry in the color document. Alternatively, the types of color data are determined by analyzing the colorspaces in the document (i.e., RGB, CMYK, LAB, XYZ, etc.), and the embedded profiles, if any, in the document (e.g., sRGB, SWOPCMYK, Euroscale). In the instance wherein a number of devices match the criteria for selection, only those devices which honor embedded color profiles are selected for documents containing embedded profiles. Alternatively, only those devices are selected that produce a consistent rendering across multiple color spaces and profiles for documents with a mix of color spaces and profiles. Selecting the best device may also depend on whether the type of print job is considered to be Job-Balancing or Job-Splitting. With Job-Balancing, at least one of the metrics is used: (i) Intersection Gamut Volume, (ii) Gamut Similarity, or (iii) Mismatch Between Document Colors and Intersection Gamut for device selection. With Job-Splitting, at least one of these metrics are used: (i) Individual Gamut Volume, or (ii) Mismatch Between Document Colors and Device Gamut. Colorimetric definition of the selected colors can be retrieved from either an embedded source profile or by default and mapping the colors to the output gamut.

118. 发明申请

US20170303790A1 MOBILE HYPERSPECTRAL CAMERA SYSTEM AND HUMAN SKIN MONITORING USING A MOBILE HYPERSPECTRAL CAMERA SYSTEM 审中-公开
公开(公告)号：US20170303790A1
公开(公告)日：2017-10-26
申请号：US15397982
申请日：2017-01-04
申请人： Raja Bala , Sourabh Ravindran , Hamid Rahim Sheikh , Youngjun Yoo , Michael Oliver Polley
发明人： Raja Bala , Sourabh Ravindran , Hamid Rahim Sheikh , Youngjun Yoo , Michael Oliver Polley
IPC分类号： A61B5/00 , H04N5/33 , G06T7/11 , H04N5/225 , G06T7/00 , H04N7/18 , H04N5/232 , A61B90/50
CPC分类号： A61B5/0077 , A61B5/0075 , A61B5/1032 , A61B5/441 , A61B5/445 , A61B5/486 , A61B5/6898 , A61B5/7264 , A61B5/744 , A61B5/7445 , A61B5/7485 , A61B2090/502 , A61B2562/0233 , A61B2562/04 , A61B2562/046 , G02B27/017 , G02B2027/0138 , G02B2027/014 , G02B2027/0156 , G02B2027/0178 , G06K9/2018 , G06K9/22 , G06T7/0012 , G06T7/11 , G06T2207/10024 , G06T2207/30088 , G06T2207/30201 , H04N5/2256 , H04N5/2257 , H04N5/2258 , H04N5/23293 , H04N5/332 , H04N7/181 , H04N7/185
摘要： A mobile hyperspectral camera system is described. The mobile hyperspectral camera system comprises a mobile host device comprising a processor and a display: a plurality of cameras, coupled to the processor, configured to capture images in distinct spectral bands; and a hyperspectral flash array, coupled to the processor, configured to provide illumination to the distinct spectral bands. A method of implementing a mobile hyperspectral camera system is also described.

119. 发明授权

US09741249B2 Automated processing method for bus crossing enforcement 有权
公开(公告)号：US09741249B2
公开(公告)日：2017-08-22
申请号：US13210447
申请日：2011-08-16
申请人： Aaron M. Burry , Raja Bala , Zhigang Fan
发明人： Aaron M. Burry , Raja Bala , Zhigang Fan
IPC分类号： H04N7/18 , G08G1/017 , G06K9/32
CPC分类号： G08G1/0175 , G06K9/325 , G06K2209/15
摘要： As set forth herein, systems and methods are described that facilitate to analyze a video stream from a camera mounted on the side of a school bus, wherein a sub-set of video sequences showing cars illegally passing the stopped school bus are automatically identified through image and/or video processing. The described systems and methods provide a significant savings in terms of the amount of manual review that is required to identify such violations. The video sequences also can be analyzed further to additionally produce images of the license plate (for identification of the violator), thereby providing further reduction in required human processing and review time. In one embodiment, automatic license plate recognition (ALPR) is employed to identify text on the violator's license plate, as well as the state by which the license plate was issued, without requiring human review of the license plate image.

120. 发明授权

US09122932B2 Method and system for automatically detecting multi-object anomalies utilizing joint sparse reconstruction model 有权
标题翻译：利用关联稀疏重建模型自动检测多物体异常的方法和系统
公开(公告)号：US09122932B2
公开(公告)日：2015-09-01
申请号：US13476239
申请日：2012-05-21
申请人： Raja Bala , Zhigang Fan , Aaron Burry , Vishal Monga , Xuan Mo
发明人： Raja Bala , Zhigang Fan , Aaron Burry , Vishal Monga , Xuan Mo
IPC分类号： H04N7/18 , G06K9/00 , G08G1/01 , G06K9/62
CPC分类号： G06K9/00771 , G06K9/6249 , G08G1/0129 , H04N7/181
摘要： Methods and systems for automatically detecting multi-object anomalies at a traffic intersection utilizing a joint sparse reconstruction model. A first input video sequence at a first traffic location can be received and at least one normal event involving P moving objects (where P is greater than or equal to 1) can be identified in an offline training phase. The normal event in the first input video sequence can be assigned to at least one normal event class and a training dictionary suitable for joint sparse reconstruction can be built in the offline training phase. A second input video sequence captured at a second traffic location similar to the first traffic location can be received and at least one event involving P moving objects can be identified in an online detection phase.
摘要翻译：利用联合稀疏重建模型自动检测交通路口多物体异常的方法和系统。可以在离线训练阶段中识别在第一交通位置处的第一输入视频序列，并且可以在离线训练阶段识别涉及P个运动对象（其中P大于或等于1）的至少一个正常事件。可以将第一输入视频序列中的正常事件分配给至少一个正常事件类，并且可以在离线训练阶段中构建适合关联稀疏重建的训练字典。可以接收在类似于第一业务位置的第二业务位置处捕获的第二输入视频序列，并且可以在在线检测阶段中识别涉及P个移动对象的至少一个事件。

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