基于增强现实ar装配系统研究.pptx

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基于增强现实ar装配系统研究

A comprehensive survey of augmented reality assembly research;Abstract provide a concise overview of the technical features,characteristics and broad range of applications of ARbased assembly systems published between 1990 and 2015. Introduction 1.traditional computer-aided assembly technology:requir to identify constraint information between the mating parts;difficult to foresee the impact of individual mating specifications on other aspects of the assembly process;lacks direct interaction between users andthe components. 2.VR assembly system:lacking of realistic experience,decreasing the fidelity and credibility ;not easy to fully and accurately model the real-time and actual working environments. 3.AR assembly system:does not need the entire real world to be modeled;enhances the interaction between the systems and the users,manipulate the objects naturally.;Six functional modules of AR assembly system;Three main categories AR assembly system;AR multi-media and interactive instructions Disadvantage: focus solely on providing step-based instructions,overlooking user’s need of timely guidance in assembly operations; could not keep track of theassembly status in real-time and recognize errors and completion states ; when assisting complex assembly processes,time-consuming authoring procedures, integration with enterprise data; the interaction scheme may disturb or interrupt user’s on-going assembly task. Target: detecting and recognizing the users’ actions in order to provide an industrial robust hands free interaction. examine the appropriateness of AR guidance for more complex, multi-step assembly tasks. ;Context-awareness and authoring AR assembly system keeps track of the status of users in real-time, automatically recognizing manual errors and completion

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