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1.发明申请DICTIONARY DESIGN FOR COMPUTATIONALLY EFFICIENT VIDEO ANOMALY DETECTION VIA SPARSE RECONSTRUCTION TECHNIQUES 有权通过稀疏重建技术进行计算效能视觉异常检测的词典设计公开(公告)号：US20140270353A1
公开(公告)日：2014-09-18
申请号：US13827222
申请日：2013-03-14
Applicant: XEROX CORPORATION
Inventor： Raja Bala , Zhigang Fan , Aaron Michael Burry , Jose Antonio Rodriguez-Serrano , Vishal Monga , Xuan Mo
CPC classification number: G06K9/00771 , G06K9/6249
Abstract: Methods, systems, and processor-readable media for pruning a training dictionary for use in detecting anomalous events from surveillance video. Training samples can be received, which correspond to normal events. A dictionary can then be constructed, which includes two or more classes of normal events from the training samples. Sparse codes are then generated for selected training samples with respect to the dictionary derived from the two or more classes of normal events. The size of the dictionary can then be reduced by removing redundant dictionary columns from the dictionary via analysis of the sparse codes. The dictionary is then optimized to yield a low reconstruction error and a high-interclass discriminability.
Abstract translation: 用于修剪用于检测来自监视视频的异常事件的训练词典的方法，系统和处理器可读介质。 可以收到培训样本，对应于正常事件。 然后可以构建字典，其包括来自训练样本的两个或更多类的正常事件。 然后针对从两个或多个正常事件类派生的字典为选定的训练样本生成稀疏码。 然后可以通过对稀疏代码的分析从字典中删除冗余字典列来减少字典的大小。 然后对该字典进行优化，以产生低重构误差和高阶间的可辨别性。
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公开(公告)号：US20160092473A1
公开(公告)日：2016-03-31
申请号：US14497417
申请日：2014-09-26
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent Perronnin
IPC: G06F17/30
CPC classification number: G06F17/30253 , G06Q20/145 , G07B15/02 , G07F17/24
Abstract: A privacy-preserving multi-query parking management system and method. An image of a vehicle with respect to a specific part (e.g., license plate) can be captured when the vehicle enters via an entry point. An image signature can be computed by embedding the image into a descriptor space and the image signature can be stored in a database together with relevant metadata. An image of a vehicle with respect to the specific part can be captured when the vehicle exits via at least one exit point and an image signature can be computed. An entry-exit association with respect to the vehicle can be performed by searching for a most similar image signature in the database. Additionally, given a textual query (e.g., a license plate number), a signature can be computed by embedding the text into the same descriptor space.
Abstract translation: 一种隐私保护多查询停车管理系统和方法。 当车辆通过入口点进入时，可以捕获相对于特定部分（例如，牌照）的车辆的图像。 可以通过将图像嵌入到描述符空间中来计算图像签名，并且可以将图像签名与相关元数据一起存储在数据库中。 当车辆经由至少一个出口点离开时，可以捕获相对于特定部分的车辆的图像，并且可以计算图像签名。 可以通过在数据库中搜索最相似的图像签名来执行关于车辆的入口关联。 此外，给定文本查询（例如，牌照号码），可以通过将文本嵌入相同的描述符空间来计算签名。
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公开(公告)号：US09384423B2
公开(公告)日：2016-07-05
申请号：US13903218
申请日：2013-05-28
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent C. Perronnin
CPC classification number: G06K9/72 , G06K9/00872 , G06K9/3258 , G06K9/6232 , G06K2209/15
Abstract: A system and method for computing confidence in an output of a text recognition system includes performing character recognition on an input text image with a text recognition system to generate a candidate string of characters. A first representation is generated, based on the candidate string of characters, and a second representation is generated based on the input text image. A confidence in the candidate string of characters is computed based on a computed similarity between the first and second representations in a common embedding space.
Abstract translation: 用于计算文本识别系统的输出的置信度的系统和方法包括使用文本识别系统对输入文本图像执行字符识别以生成候选字符串。 基于候选字符串生成第一表示，并且基于输入的文本图像生成第二表示。 基于在公共嵌入空间中计算出的第一和第二表示之间的相似度来计算候选字符串的置信度。
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4.发明授权Dictionary design for computationally efficient video anomaly detection via sparse reconstruction techniques 有权通过稀疏重建技术进行计算高效视频异常检测的词典设计公开(公告)号：US09098749B2
公开(公告)日：2015-08-04
申请号：US13827222
申请日：2013-03-14
Applicant: Xerox Corporation
Inventor： Raja Bala , Zhigang Fan , Aaron Michael Burry , Jose Antonio Rodriguez-Serrano , Vishal Monga , Xuan Mo
CPC classification number: G06K9/00771 , G06K9/6249
Abstract: Methods, systems, and processor-readable media for pruning a training dictionary for use in detecting anomalous events from surveillance video. Training samples can be received, which correspond to normal events. A dictionary can then be constructed, which includes two or more classes of normal events from the training samples. Sparse codes are then generated for selected training samples with respect to the dictionary derived from the two or more classes of normal events. The size of the dictionary can then be reduced by removing redundant dictionary columns from the dictionary via analysis of the sparse codes. The dictionary is then optimized to yield a low reconstruction error and a high-interclass discriminability.
Abstract translation: 用于修剪用于检测来自监视视频的异常事件的训练词典的方法，系统和处理器可读介质。 可以收到培训样本，对应于正常事件。 然后可以构建字典，其包括来自训练样本的两个或更多类的正常事件。 然后针对从两个或多个正常事件类派生的字典为选定的训练样本生成稀疏码。 然后可以通过对稀疏代码的分析从字典中删除冗余字典列来减少字典的大小。 然后对该字典进行优化，以产生低重构误差和高阶间的可辨别性。
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公开(公告)号：US20140219563A1
公开(公告)日：2014-08-07
申请号：US13757014
申请日：2013-02-01
Applicant: XEROX CORPORATION
Inventor： Jose Antonio Rodriguez-Serrano , Florent C. Perronnin
IPC: G06K9/18
CPC classification number: G06K9/18 , G06K9/3258 , G06K9/6269 , G06K2209/15
Abstract: A system and method for comparing a text image and a character string are provided. The method includes embedding a character string into a vectorial space by extracting a set of features from the character string and generating a character string representation based on the extracted features, such as a spatial pyramid bag of characters (SPBOC) representation. A text image is embedded into a vectorial space by extracting a set of features from the text image and generating a text image representation based on the text image extracted features. A compatibility between the text image representation and the character string representation is computed, which includes computing a function of the text image representation and character string representation.
Abstract translation: 提供了一种用于比较文本图像和字符串的系统和方法。 该方法包括通过从字符串提取一组特征并基于所提取的特征（诸如空间金字塔包（SPBOC）表示）生成字符串表示来将字符串嵌入向量空间中。 文本图像通过从文本图像提取一组特征并且基于文本图像提取的特征生成文本图像表示来嵌入向量空间中。 计算文本图像表示和字符串表示之间的兼容性，其包括计算文本图像表示和字符串表示的功能。
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Patent Agency Ranking
公开(公告)号：US09792301B2
公开(公告)日：2017-10-17
申请号：US14497417
申请日：2014-09-26
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent Perronnin
CPC classification number: G06F17/30253 , G06Q20/145 , G07B15/02 , G07F17/24
Abstract: A privacy-preserving multi-query parking management system and method. An image of a vehicle with respect to a specific part (e.g., license plate) can be captured when the vehicle enters via an entry point. An image signature can be computed by embedding the image into a descriptor space and the image signature can be stored in a database together with relevant metadata. An image of a vehicle with respect to the specific part can be captured when the vehicle exits via at least one exit point and an image signature can be computed. An entry-exit association with respect to the vehicle can be performed by searching for a most similar image signature in the database. Additionally, given a textual query (e.g., a license plate number), a signature can be computed by embedding the text into the same descriptor space.
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公开(公告)号：US09412031B2
公开(公告)日：2016-08-09
申请号：US14054998
申请日：2013-10-16
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent C. Perronnin , Herve Poirier , Frederic Roulland , Victor Ciriza
CPC classification number: G06K9/3258 , G06F17/30253 , G06K9/00791 , G06K9/6212 , G06K9/6277 , G06K2209/15 , G06K2209/27
Abstract: A method for recognition of an identifier such as a license plate includes storing first visual signatures, each extracted from a first image of a respective object, such as a vehicle, captured at a first location, and first information associated with the first captured image, such as a time stamp. A second visual signature is extracted from a second image of a second object captured at a second location and second information associated with the second captured image is acquired. A measure of similarity is computed between the second visual signature and at least some of the first visual signatures to identify a matching one. A test is performed, which is a function of the first and the second information associated with the matching signatures. Only when it is confirmed that the test has been met, identifier recognition is performed to identify the identifier of the second object.
Abstract translation: 用于识别诸如车牌的标识符的方法包括存储从在第一位置捕获的诸如车辆的相应对象的第一图像提取的第一视觉签名以及与第一拍摄图像相关联的第一信息， 如时间戳。 从第二位置捕获的第二对象的第二图像提取第二视觉签名，并且获取与第二拍摄图像相关联的第二信息。 在第二视觉签名和至少一些第一视觉签名之间计算相似度的度量以识别匹配的一个。 执行测试，其是与匹配签名相关联的第一和第二信息的函数。 只有当确认已经满足测试时，才执行标识符识别以识别第二个对象的标识符。
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公开(公告)号：US09158995B2
公开(公告)日：2015-10-13
申请号：US13803334
申请日：2013-03-14
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Diane Larlus-Larrondo
CPC classification number: G06K9/6217 , G06K9/3233 , G06K9/325 , G06K9/6267 , G06K2209/15
Abstract: A computer implemented method for localization of an object, such as a license plate, in an input image includes generating a task-dependent representation of the input image based on relevance scores for the object to be localized. The relevance scores are output by a classifier for a plurality of locations in the input image, such as patches. The classifier is trained on patches extracted from training images and their respective relevance labels. One or more similar images are identified from a set of images, based on a comparison of the task-dependent representation of the input image and task-dependent representations of images in the set of images. A location of the object in the input image is identified based on object location annotations for the similar images.
Abstract translation: 用于在输入图像中定位对象（例如牌照）的计算机实现的方法包括基于要被本地化的对象的相关性得分来生成输入图像的任务相关表示。 相关性分数由输入图像中的多个位置的分类器输出，例如补片。 对分类器进行训练，从训练图像提取的补丁及其各自的相关标签。 基于输入图像的任务相关表示和图像集合中的图像的任务相关表示的比较，从一组图像中识别一个或多个相似图像。 基于相似图像的对象位置注释来识别输入图像中对象的位置。
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公开(公告)号：US20150104073A1
公开(公告)日：2015-04-16
申请号：US14054998
申请日：2013-10-16
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent C. Perronnin , Herve Poirier , Frederic Roulland , Victor Ciriza
CPC classification number: G06K9/3258 , G06F17/30253 , G06K9/00791 , G06K9/6212 , G06K9/6277 , G06K2209/15 , G06K2209/27
Abstract: A method for recognition of an identifier such as a license plate includes storing first visual signatures, each extracted from a first image of a respective object, such as a vehicle, captured at a first location, and first information associated with the first captured image, such as a time stamp. A second visual signature is extracted from a second image of a second object captured at a second location and second information associated with the second captured image is acquired. A measure of similarity is computed between the second visual signature and at least some of the first visual signatures to identify a matching one. A test is performed, which is a function of the first and the second information associated with the matching signatures. Only when it is confirmed that the test has been met, identifier recognition is performed to identify the identifier of the second object.
Abstract translation: 用于识别诸如车牌的标识符的方法包括存储从在第一位置捕获的诸如车辆的相应对象的第一图像提取的第一视觉签名以及与第一拍摄图像相关联的第一信息， 如时间戳。 从第二位置捕获的第二对象的第二图像提取第二视觉签名，并且获取与第二拍摄图像相关联的第二信息。 在第二视觉签名和至少一些第一视觉签名之间计算相似度的度量以识别匹配的一个。 执行测试，其是与匹配签名相关联的第一和第二信息的函数。 只有当确认已经满足测试时，才执行标识符识别以识别第二个对象的标识符。
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公开(公告)号：US09008429B2
公开(公告)日：2015-04-14
申请号：US13757014
申请日：2013-02-01
Applicant: Xerox Corporation
Inventor： Jose Antonio Rodriguez-Serrano , Florent C. Perronnin
CPC classification number: G06K9/18 , G06K9/3258 , G06K9/6269 , G06K2209/15
Abstract: A system and method for comparing a text image and a character string are provided. The method includes embedding a character string into a vectorial space by extracting a set of features from the character string and generating a character string representation based on the extracted features, such as a spatial pyramid bag of characters (SPBOC) representation. A text image is embedded into a vectorial space by extracting a set of features from the text image and generating a text image representation based on the text image extracted features. A compatibility between the text image representation and the character string representation is computed, which includes computing a function of the text image representation and character string representation.
Abstract translation: 提供了一种用于比较文本图像和字符串的系统和方法。 该方法包括通过从字符串提取一组特征并基于所提取的特征（诸如空间金字塔包（SPBOC）表示）生成字符串表示来将字符串嵌入向量空间中。 文本图像通过从文本图像提取一组特征并且基于文本图像提取的特征生成文本图像表示来嵌入向量空间中。 计算文本图像表示和字符串表示之间的兼容性，其包括计算文本图像表示和字符串表示的功能。
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