公开(公告)号：US20020099721A1

公开(公告)日：2002-07-25

申请号：US10020346

申请日：2001-10-30

申请人： Lucent Technologies Inc.

发明人： S. Kicha Ganapathy ,  Jianying Hu ,  Jelena Kovacevic ,  Aleksandra Mojsilovic ,  Robert James Safranek

IPC分类号： G06F007/00

CPC分类号： G06F17/30262 ,  G06F17/3025 ,  G06K9/626 ,  Y10S707/99932 ,  Y10S707/99933 ,  Y10S707/99936 ,  Y10S707/99945 ,  Y10S707/99948

摘要： The invention provides a perceptually-based system for pattern retrieval and matching, suitable for use in a wide variety of information processing applications. An illustrative embodiment of the system uses a predetermined vocabulary comprising one or more dimensions to extract color and texture information from an information signal, e.g., an image, selected by a user. The system then generates a distance measure characterizing the relationship of the selected image to another image stored in a database, by applying a grammar, comprising a set of predetermined rules, to the color and texture information extracted from the selected image and corresponding color and texture information associated with the stored image. The vocabulary may include dimensions such as overall color, directionality and orientation, regularity and placement, color purity, and pattern complexity and heaviness. The rules in the grammar may include equal pattern, overall appearance, similar pattern, and dominant color and general impression, with each of the rules expressed as a logical combination of values generated for one or more of the dimensions. The distance measure may include separate color and texture metrics characterizing the similarity of the respective color and texture of the two images being compared. The invention is also applicable to other types of information signals, such as sequences of video frames.

摘要翻译： 本发明提供了一种基于感知的用于模式检索和匹配的系统，适用于各种各样的信息处理应用。 系统的说明性实施例使用包括一个或多个维度的预定词汇表从用户选择的信息信号（例如，图像）中提取颜色和纹理信息。 然后，系统通过将包括一组预定规则的语法应用于从所选择的图像提取的颜色和纹理信息以及相应的颜色和纹理，生成表征所选图像与存储在数据库中的另一图像的关系的距离度量 与存储的图像相关联的信息。 词汇可以包括诸如整体颜色，方向性和取向，规则性和放置，颜色纯度和图案复杂性和沉重性的尺寸。 语法中的规则可以包括相等的模式，整体外观，类似的模式以及主要颜色和一般的印象，其中每个规则表示为为一个或多个维度生成的值的逻辑组合。 距离测量可以包括表征正在比较的两个图像的相应颜色和纹理的相似性的分离的颜色和纹理度量。 本发明也可应用于其他类型的信息信号，例如视频帧序列。

公开(公告)号：US20030044062A1

公开(公告)日：2003-03-06

申请号：US10188687

申请日：2002-07-03

申请人： Lucent Technologies Inc.

发明人： S. Kicha Ganapathy ,  Jianying Hu ,  Jelena Kovacevic ,  Aleksandra Mojsilovic ,  Robert James Safranek

IPC分类号： G06K009/00

CPC分类号： G06F17/30262 ,  G06F17/3025 ,  G06K9/626 ,  Y10S707/99932 ,  Y10S707/99933 ,  Y10S707/99936 ,  Y10S707/99945 ,  Y10S707/99948

摘要： The invention provides a perceptually-based system for pattern retrieval and matching, suitable for use in a wide variety of information processing applications. An illustrative embodiment of the system uses a predetermined vocabulary comprising one or more dimensions to extract color and texture information from an information signal, e.g., an image, selected by a user. The system then generates a distance measure characterizing the relationship of the selected image to another image stored in a database, by applying a grammar, comprising a set of predetermined rules, to the color and texture information extracted from the selected image and corresponding color and texture information associated with the stored image. The vocabulary may include dimensions such as overall color, directionality and orientation, regularity and placement, color purity, and pattern complexity and heaviness. The rules in the grammar may include equal pattern, overall appearance, similar pattern, and dominant color and general impression, with each of the rules expressed as a logical combination of values generated for one or more of the dimensions. The distance measure may include separate color and texture metrics characterizing the similarity of the respective color and texture of the two images being compared. The invention is also applicable to other types of information signals, such as sequences of video frames.