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41. 发明授权

US07295703B2 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：US07295703B2
公开(公告)日：2007-11-13
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： G06K9/00 , G06K1/00 , H04N1/46
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，从而提高输入设备的表征和精度。

42. 发明申请

US20070177231A1 Halftone independent color drift correction 有权
标题翻译：半色调独立色差校正
公开(公告)号：US20070177231A1
公开(公告)日：2007-08-02
申请号：US11343656
申请日：2006-01-31
申请人： Shen-ge Wang , Raja Bala , Vishal Monga
发明人： Shen-ge Wang , Raja Bala , Vishal Monga
IPC分类号： H04N1/46
CPC分类号： H04N1/4078 , H04N1/40006
摘要： A method for compensating for color drift in a printer includes determining a first true tone response curve for a color channel when said printer is in a first state. A first estimated tone response curve for the color channel is also determined when said printer is in the first state. A second estimated tone response curve for the color channel is determined when the printer is in a second, color-drifted state relative to the first state. A second true tone response curve for the color channel is mathematically predicted using the first true tone response curve, the first estimated tone response curve, and the second estimated tone response curve. The first and second estimated tone response curves are estimated using a 2×2 printer model. A printing apparatus includes an image processing unit for implementing the color-drift correction process.
摘要翻译：用于补偿打印机中的颜色漂移的方法包括当所述打印机处于第一状态时，确定用于颜色通道的第一真实色调响应曲线。当所述打印机处于第一状态时，还确定色彩通道的第一估计色调响应曲线。当打印机处于相对于第一状态的第二颜色漂移状态时，确定用于颜色通道的第二估计色调响应曲线。使用第一真实色调响应曲线，第一估计色调响应曲线和第二估计色调响应曲线来数学地预测用于色彩通道的第二真正色调响应曲线。使用2x2打印机模型来估计第一和第二估计音响应曲线。打印装置包括用于实现色差校正处理的图像处理单元。

43. 发明申请

US20070035749A1 Color compensation of images 失效
标题翻译：图像颜色补偿
公开(公告)号：US20070035749A1
公开(公告)日：2007-02-15
申请号：US11200227
申请日：2005-08-09
申请人： Yeqing Zhang , Robert Loce , Raja Bala
发明人： Yeqing Zhang , Robert Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6016
摘要： A color correction method includes for each of a plurality of color separations of a digital image, establishing a tone reproduction curve in the form of a vector. The vector is a function of a plurality of basis vectors. The basis vectors account for colorant interactions between a primary colorant with which the color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The vector includes modified input values corresponding to input values for the color separation which vary, depending on the input values of at least the second color separation. For a pixel of interest in the digital image, a modified input value for the color separation which corresponds to the input value of the given color separation is identified from the vector.
摘要翻译：颜色校正方法包括数字图像的多个分色中的每一个，建立矢量形式的色调再现曲线。向量是多个基本向量的函数。基本向量涉及要与其进行分色的主要着色剂和至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行再现。矢量包括对应于颜色分离的输入值的修改的输入值，其根据至少第二颜色分离的输入值而变化。对于数字图像中感兴趣的像素，从向量中识别对应于给定颜色分离的输入值的颜色分离的修改输入值。

44. 发明授权

US06937253B2 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：US06937253B2
公开(公告)日：2005-08-30
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。

45. 发明申请

US20050036159A1 System and method for obtaining color consistency for a color print job across multiple output devices 有权
公开(公告)号：US20050036159A1
公开(公告)日：2005-02-17
申请号：US10640835
申请日：2003-08-14
申请人： Gaurav Sharma , Raja Bala , Robert Rolleston
发明人： Gaurav Sharma , Raja Bala , Robert Rolleston
IPC分类号： H04N1/60
CPC分类号： H04N1/6058 , H04N1/603
摘要： A method for maintaining color consistency in an environment of networked devices is disclosed. The method involves identifying a group of devices to which a job is intended to be rendered; obtaining color characteristics from devices in the identified group; modifying the job based on the obtained color characteristics; and rendering the job on one or more of the devices. More specifically, device controllers associated with each of the output devices are queried to obtain color characteristics specific to the associated output device. Preferably, the original job and the modified job employ device independent color descriptions. Modifications are computed by a transform determined by using the color characteristics of the output devices along with the content of the job itself. The method further comprises mapping colors in the original job to the output devices' common gamut, i.e., intersection of the gamuts of the individual printers wherein the color gamut of each device is obtained from a device characterization profile either by retrieving the gamut tag or by derivation using the characterization data in the profile. The color gamut of each device is computed with knowledge of the transforms that relate device independent color to device dependent color using a combination of device calibration and characterization information. Alternatively, transformations are determined dynamically based on the characteristics of the target group of output devices. From the individual color gamuts of the devices, a common intersection gamut is derived. The common intersection gamut derivation generally comprises an intersection of two three-dimensional volumes in color space. This may be performed geometrically by intersecting the surfaces representing the boundaries of the gamut volumes—which are typically chosen as triangles. Alternately, the intersection may be computed by generating a grid of points known to include all involved device gamuts. This is then mapped sequentially to each individual gamut in turn resulting in a set of points that lie within the common gamut to produce a connected gamut surface. Once the common intersection gamut is derived, the input job colors are mapped to this gamut. The optimal technique generally depends on the characteristics of the input job and the user's rendering intent. Final color correction employs a standard calorimetric transform for each output device that does not involve any gamut mapping.

46. 发明申请

US20050030560A1 Methods and systems for controlling out-of-gamut memory and index colors 有权
标题翻译：用于控制色域内存和索引颜色的方法和系统
公开(公告)号：US20050030560A1
公开(公告)日：2005-02-10
申请号：US10635381
申请日：2003-08-05
申请人： Martin Maltz , Raja Bala , Lalit Mestha
发明人： Martin Maltz , Raja Bala , Lalit Mestha
IPC分类号： H04N1/60
CPC分类号： H04N1/6058
摘要： Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.
摘要翻译：公开了用于控制位于色域外部的颜色的图像处理装置中的方法和系统。可以将多个颜色值自动提供给所述图像处理装置的输入，其中所述图像处理装置处于特定尺寸顺序的控制下，通常为三维顺序，但是可替代地可以是二维顺序。接下来，可以动态地确定多个颜色值中的哪个颜色值已经达到色域限制的操作。此后，可以自动减小特定尺寸顺序，从而对位于所述色域外部的颜色提供改进的控制。分析的多个颜色值通常与三种颜色（青色，品红色和黄色）相关联。

47. 发明授权

US09214137B2 Methods and systems for realistic rendering of digital objects in augmented reality 有权
标题翻译：增强现实中数字物体逼真渲染的方法和系统
公开(公告)号：US09214137B2
公开(公告)日：2015-12-15
申请号：US13525959
申请日：2012-06-18
申请人： Raja Bala , Hengzhou Ding , Yonghui Zhao , Michael R. Furst , Pramod Sankar Kompalli
发明人： Raja Bala , Hengzhou Ding , Yonghui Zhao , Michael R. Furst , Pramod Sankar Kompalli
IPC分类号： G09G5/377 , G09G5/14 , G06F3/147
CPC分类号： G09G5/14 , G06F3/147 , G09G2340/12 , G09G2354/00 , G09G2356/00
摘要： A system and method of rendering in real time a virtual object onto a viewfinder display, the method comprising determining one or more scene properties of a scene on a viewfinder display of a device, receiving a virtual object for insertion into the scene, determining a location for placing the virtual object within the scene, determining a first appearance of the virtual object based on the one or more scene properties, and inserting the virtual object with the first appearance into the scene depicted on the viewfinder display of the device based on the location.
摘要翻译：一种将虚拟对象实时呈现到取景器显示器上的系统和方法，所述方法包括确定设备的取景器显示器上的场景的一个或多个场景属性，接收用于插入到场景中的虚拟对象，确定位置用于将所述虚拟对象放置在所述场景内，基于所述一个或多个场景属性来确定所述虚拟对象的第一外观，以及基于所述位置将所述第一外观的所述虚拟对象插入所述设备的取景器显示器上所示的场景。

48. 发明授权

US09014255B2 System and method for identifying unique portions of videos with validation and predictive scene changes 有权
标题翻译：用于通过验证和预测场景变化识别视频的独特部分的系统和方法
公开(公告)号：US09014255B2
公开(公告)日：2015-04-21
申请号：US13438277
申请日：2012-04-03
申请人： Stuart Schweid , Raja Bala , Yonghui Zhao
发明人： Stuart Schweid , Raja Bala , Yonghui Zhao
IPC分类号： H04B1/66 , H04N21/234 , H04N21/845 , H04N21/8541
CPC分类号： H04N21/23412 , H04N21/23418 , H04N21/8455 , H04N21/8541
摘要： A computer-based method for generating a compressed data stream, including using a specially programmed computer to: access a first compressed data stream including a first plurality of sequentially arranged frames including respective compressed frame data; access a second compressed data stream including a second plurality of sequentially arranged frames including respective compressed frame data; compare respective compressed data for sequentially matched pairs of frames in the first and second pluralities of frames; select, based on the comparison, common and unique portions in the first data stream; and select, based on the comparison, first and second portions in the second data stream, matched with the common and unique portions, respectively, in the sequence. The first portion has respective compressed frame data equal to the respective compressed frame data for the common portion. The second portion has respective compressed frame data unequal to the respective compressed frame data for the common portion.
摘要翻译：一种用于生成压缩数据流的基于计算机的方法，包括使用专门编程的计算机来：访问包括包括各个压缩帧数据的第一多个顺序排列的帧的第一压缩数据流; 访问包括包括相应压缩帧数据的第二多个顺序排列的帧的第二压缩数据流; 比较第一和第二多个帧中的顺序匹配的帧对的各个压缩数据; 基于比较，选择第一数据流中的公共和唯一部分; 并且基于比较，选择第二数据流中的第一和第二部分，分别与序列中的公共部分和唯一部分匹配。第一部分具有等于公共部分的相应压缩帧数据的相应压缩帧数据。第二部分具有与公共部分的各个压缩帧数据不相等的各个压缩帧数据。

49. 发明授权

US08810658B2 Estimating a visible vector representation for pixels in an infrared image 有权
标题翻译：估计红外图像中像素的可见向量表示
公开(公告)号：US08810658B2
公开(公告)日：2014-08-19
申请号：US13364835
申请日：2012-02-02
申请人： Sandra Skaff , Raja Bala , Lalit Keshav Mestha , Beilei Xu
发明人： Sandra Skaff , Raja Bala , Lalit Keshav Mestha , Beilei Xu
IPC分类号： H04N5/33
CPC分类号： H04N5/33 , G06T7/90 , G06T2207/10048 , H04N5/332 , H04N9/045 , H04N9/43
摘要： What is disclosed is a system and method for estimating color for pixels in an infrared image. In one embodiment, an infrared image is received which has been captured using a N-band infrared imaging system comprising a multi-spectral camera or a hyperspectral camera. The IR image is composed of an array of pixels with N intensity values having been collected for each pixel in the image. Then, for each pixel of interest, a search metric is used to search a database of vector samples to identify a visible-IR set which is closest to the intensity values of the IR band vector collected for the pixel. A visible vector representation is then estimated for the pixel based upon the visible portion corresponding to the closest visible-IR set. Thereafter, color coordinates for this pixel are computed from the visible vector. The method repeats for all pixels of interest in the IR image.
摘要翻译：公开的是用于估计红外图像中的像素的颜色的系统和方法。在一个实施例中，接收使用包括多光谱相机或高光谱相机的N波段红外成像系统捕获的红外图像。 IR图像由对图像中的每个像素收集的具有N个强度值的像素阵列组成。然后，对于感兴趣的每个像素，使用搜索度量来搜索向量样本的数据库，以识别最接近为该像素收集的IR带矢量的强度值的可见IR集合。然后基于对应于最接近的可见IR集的可见部分，针对像素估计可见矢量表示。此后，从可见矢量计算该像素的颜色坐标。该方法针对IR图像中所有感兴趣的像素重复。

50. 发明申请

US20140068777A1 METHOD AND SYSTEM FOR DETECTING ANAMOLIES WITHIN VOLUMINOUS PRIVATE DATA 有权
标题翻译：用于检测体内私人数据中的解的方法和系统
公开(公告)号：US20140068777A1
公开(公告)日：2014-03-06
申请号：US13603451
申请日：2012-09-05
申请人： Nischal M. Piratla , Chithralekha Balamurugan , Raja Bala , Aaron M. Burry
发明人： Nischal M. Piratla , Chithralekha Balamurugan , Raja Bala , Aaron M. Burry
IPC分类号： G06F21/24
CPC分类号： G06F21/60
摘要： A method and a system for detecting anomalies within a voluminous private data are provided. The voluminous private data, including sensitive information corresponding to one or more objects within the voluminous private data is received. The sensitive information within the voluminous private data is identified, and identified sensitive information is modified to generate a modified voluminous private data. The sensitive information is marked in the modified voluminous private data to generate a marked voluminous private data. The anomaly within the marked voluminous private data is detected.
摘要翻译：提供了一种用于检测大量私人数据中的异常的方法和系统。收到大量私人数据，包括对应于大量私人数据内的一个或多个对象的敏感信息。识别大量私人数据中的敏感信息，并且识别敏感信息被修改以生成修改的庞大私人数据。敏感信息在修改后的大量私人数据中进行标记，以生成明显的大量私人数据。检测到明显庞大的私人数据中的异常。

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