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    • 49. 发明授权
    • Visual dictionary
    • 视觉词典
    • US5983237A
    • 1999-11-09
    • US916904
    • 1997-08-21
    • Ramesh JainAmarnath GuptaArun HampapurBradley Horowitz
    • Ramesh JainAmarnath GuptaArun HampapurBradley Horowitz
    • G06F17/30
    • G06F17/30265G06F17/30256Y10S707/99933Y10S707/99937Y10S707/99945Y10S707/99948
    • A system and method for improving the retrieval performance of a query engine in a visual information retrieval (VIR) system by encoding domain-specific knowledge into the VIR system through a visual dictionary or "victionary". The victionary is a dictionary-like information-mapping module that is used to retrieve visual information at a "semantic" level. A VIR system that performs generic image processing is enhanced by adding a query transformation unit and a query expansion unit, i.e., the victionary. With these additional components, a user may present a query either as a text term (such as a keyword or phrase), or as an image (with weights) and execute a "semantic query". During semantic query processing, the victionary-enhanced system transforms the user's original term (or image query) to a set of equivalent queries, and internally executes all the equivalent queries before presenting the results to the user. The victionary unit is responsible for taking the term (or image query) and finding the equivalent feature vectors (and weights). A result processor accumulates the score sheets of each equivalent query and presents a composite ranking that reflects a faithful representation of each equivalent query to the user. The architecture of the victionary-enhanced system is open and extensible, so that one or more domain-specific victionary modules can be plugged into the system. The plug-in architecture of the victionary module is effected through an application programming interface (API).
    • 一种用于通过视觉词典或“词典”通过将领域特定知识编码到VIR系统中来提高视觉信息检索(VIR)系统中的查询引擎的检索性能的系统和方法。 victionary是一个类似字典的信息映射模块,用于在“语义”级别检索视觉信息。 通过添加查询变换单元和查询扩展单元(即victionary)来增强执行通用图像处理的VIR系统。 使用这些附加组件,用户可以将查询呈现为文本项(例如关键字或短语),或作为图像(具有权重)并执行“语义查询”。 在语义查询处理期间,victionary增强系统将用户的原始术语(或图像查询)转换为一组等效查询,并在向用户呈现结果之前内部执行所有等效查询。 victionary单元负责采用术语(或图像查询)并找到等价特征向量(和权重)。 结果处理器累积每个等效查询的分数表,并呈现一个综合排名,反映每个等同查询对用户的忠实表示。 victionary增强系统的架构是开放和可扩展的,因此可以将一个或多个域特定的victionary模块插入系统。 victionary模块的插件架构通过应用程序编程接口(API)来实现。