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121. 发明申请

US20060232771A1 Gray balance calibration of an imaging system 有权
标题翻译：成像系统的灰度平衡校准
公开(公告)号：US20060232771A1
公开(公告)日：2006-10-19
申请号：US11106956
申请日：2005-04-15
申请人： Robert VanDuyn , Raja Bala
发明人： Robert VanDuyn , Raja Bala
IPC分类号： G01N21/25
CPC分类号： H04N1/6033
摘要： A calibration system includes a printer capable of being calibrated and a printable calibration sheet. The printable calibration sheet includes at least one calibration reference segment printed on the sheet and one or more defined printing spaces on the sheet. The at least one calibration reference segment includes one or more pre-selected colorants on the printable sheet. The one or more defined printing spaces are adjacent to the at least one calibration reference segment. The one or more defined printing spaces are arranged to accept printing of a color pattern from a printer under calibration.
摘要翻译：校准系统包括能够被校准的打印机和可打印的校准片。可印刷校准片材包括至少一个印刷在片材上的校准参考片段和片材上的一个或多个限定的印刷空间。所述至少一个校准参考部分包括可打印片材上的一个或多个预先选择的着色剂。一个或多个限定的打印空间与至少一个校准参考段相邻。一个或多个定义的打印空间被布置成在校准下从打印机接受彩色图案的打印。

122. 发明授权

US07119924B2 Detection and segmentation of sweeps in color graphics images 有权
公开(公告)号：US07119924B2
公开(公告)日：2006-10-10
申请号：US09966030
申请日：2001-09-28
申请人： Salil Prabhakar , Raja Bala , Hui Cheng , John C. Handley , Ying-wei Lin
发明人： Salil Prabhakar , Raja Bala , Hui Cheng , John C. Handley , Ying-wei Lin
IPC分类号： G06F15/00
CPC分类号： G06T7/90 , G06T7/11 , G06T2207/30176
摘要： A process for color graphics image processing, related to detection and segmentation of sweeps, is provided. An input graphics image is transformed into a three-dimensional histogram in an appropriate color space 104 (e.g., CIELUV). Two-dimensional histograms are estimated from the three-dimensional histogram 106. The two-dimensional histograms are processed to detect and segment sweeps 108. Sweep segment information from the processing of the two-dimensional histograms is combined 110. The combined sweep segment information is used to process the input graphics image to identify and segment sweeps 112. Post-processing may be optionally and selectively used to reject false alarms (i.e., areas falsely identified as sweeps) 114.

123. 发明授权

US07070252B2 System and method for digital watermarking in a calibrated printing path 失效
标题翻译：校准打印路径中数字水印的系统和方法
公开(公告)号：US07070252B2
公开(公告)日：2006-07-04
申请号：US10644472
申请日：2003-08-20
申请人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
发明人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
IPC分类号： B41J2/205 , G06F15/00
CPC分类号： B41J2/205 , H04N1/32144 , H04N1/32251 , H04N1/32267 , H04N1/32309
摘要： What is disclosed is a method for digital watermarking in a calibrated printing path and comprises: first receiving a pixel possessing color values from an input image; receiving a plurality of information bits to be encoded at a corresponding pixel in an output image. Then, one of at least two different GCR functions are selected where the selection is based on the state of the received information bits. The number of GCR functions to be selected from is dependent on the number of possible states of the information bits intended to be encoded at each image pixel and preferably equals the number of states of the information bits intended to be encoded at each image pixel such that the GCR spatially varies across the output image. Further, at least two GCR functions are optimized to carry information and information bits intended to be encoded within the output image are represented with a tag. CMYK values are then generated using the selected GCR function and the color values. These CMYK values are assigned to a corresponding pixel in the output image. The information bits to be encoded at a given pixel indicate the type of object to which that pixel belongs, such as: graphics, picture, text, line art, etc. The output image, when printed, exhibits the property that substantially similar colors occurring at different spatial locations in the input image are produced with substantially different CMYK combinations in the print. Preferably, a parameterized function is used for the GCR function and the encoded state sets the parameter of the function. Information bits should be redundantly encoded throughout the output image. Regions that cannot be encoded by GCR information have to be compensated for. A reference mark is applied on the output image to indicate the starting point and order of the information sequence.
摘要翻译：所公开的是在校准打印路径中进行数字水印的方法，包括：首先从输入图像接收具有颜色值的像素; 在输出图像中的相应像素处接收要编码的多个信息比特。然后，选择至少两个不同的GCR功能中的一个，其中选择基于所接收的信息比特的状态。要选择的GCR功能的数量取决于要在每个图像像素处被编码的信息比特的可能状态的数量，并且优选地等于要在每个图像像素处编码的信息比特的状态数，使得 GCR在输出图像之间空间变化。此外，至少两个GCR功能被优化以携带信息，并且用标签表示旨在在输出图像内编码的信息位。然后使用所选的GCR功能和颜色值生成CMYK值。这些CMYK值被分配给输出图像中的相应像素。在给定像素处要编码的信息位指示像素所属于的对象的类型，例如：图形，图片，文本，线条等。输出图像在打印时表现出基本相似的颜色出现的属性在输入图像中的不同空间位置处，在打印中以基本不同的CMYK组合产生。优选地，GCR函数使用参数化函数，编码状态设置函数的参数。信息位应在整个输出图像中进行冗余编码。不能由GCR信息编码的区域必须得到补偿。在输出图像上应用参考标记来指示信息序列的起点和顺序。

124. 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.

125. 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。

126. 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。

127. 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。

128. 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.

129. 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.

130. 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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