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Intelligent virtual assembly action recognition method

An action recognition and virtual assembly technology, applied in the field of virtual assembly, can solve the problems of inability to perceive user action semantics, combination of user and scene, etc.

Active Publication Date: 2015-09-23
UNIV OF JINAN
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  • Abstract
  • Description
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Problems solved by technology

[0005] None of the above methods combine the user with the scene, but only specify the constraints on the scene and identify the user's actions in isolation, and cannot perceive the user's action semantics

Method used

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Embodiment Construction

[0050] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0051] Aiming at the problem that the existing virtual assembly system lacks situational analysis capability and cannot perceive user intentions, the present invention proposes a scene knowledge base model and a user knowledge base model, respectively establishes a scene knowledge base and a user knowledge base, and utilizes an expert system to perform uncertainty analysis. Reasoning, intelligent perception of user action semantics, inference of user action semantics in different assembly task scenarios, that is, user interaction intentions, solves the problem of intelligent perception of user interaction intentions in virtual assembly.

[0052]This method makes full use of scene information and user information, and combines the two closely, so that the scene can intelligently perceive the user's operation intention. This method can reduce the number of gestures used...

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Abstract

The invention provides an intelligent virtual assembly action recognition method and belongs to the field of virtual assembly. The method comprises the following steps of determining a current operation object in a scene according to a task number and a current operation number in a scene model; recognizing an action of a user to obtain a user action recognition result; and taking operational attribute of the current operation object and the user action recognition result as a fact, traversing a rule base of an expert system, searching a rule matched with a rule premise and reasoning out a conclusion, namely an operation intention of the user.

Description

technical field [0001] The invention belongs to the field of virtual assembly, and in particular relates to an action recognition method for intelligent virtual assembly. Background technique [0002] Virtual assembly is a popular application in manufacturing today. In the process of virtual assembly, human actions are often ambiguous. The same action may have different semantics in different contexts, but the semantics in a specific context is often fixed. Therefore, accurate detection of user actions in different contexts The semantics represented become very important. [0003] At present, researchers have carried out a lot of related research. Literature (] Wu Dianliang, Yang Rundang, Ma Dengzhe, Fan Xiumin. Research on assembly model expression technology in virtual assembly environment [J]. Computer Integrated Manufacturing System, 2004, 11: 1364-1369.) and literature (Ming C.Leu, Hoda A.ElMaraghy, Andrew Y.C.Nee, Soh Khim Ong, Michele Lanzetta, Matthias Putz, Wenju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0487G06K9/00
Inventor 冯志全梁丽伟
Owner UNIV OF JINAN
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