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Three-dimensional model searching method based on shape orientation multi-resolution analysis

A multi-resolution analysis and three-dimensional model technology, applied in the field of three-dimensional model retrieval, can solve the problems of low feature discrimination, poor stability, long extraction time, etc., to improve feature discrimination, increase speed, ensure maximum and optimization Effect

Inactive Publication Date: 2012-05-16
NANTONG JINNIU MACHINERY MFR +1
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AI Technical Summary

Problems solved by technology

[0009] In order to overcome the disadvantages of poor stability, long extraction time and low feature discrimination in the prior art, the present invention provides a three-dimensional shape feature extraction method based on multi-resolution analysis of shape orientation, which increases the stability of the method and ensures the prediction The processing has as little impact on the later feature extraction as possible, which improves the speed of feature extraction and enhances the distinguishing power of features

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  • Three-dimensional model searching method based on shape orientation multi-resolution analysis
  • Three-dimensional model searching method based on shape orientation multi-resolution analysis
  • Three-dimensional model searching method based on shape orientation multi-resolution analysis

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Embodiment Construction

[0022] Such as figure 1 Shows a detailed explanation of the system flow chart of the 3D model retrieval. The technology of the present invention can realize the system function of three-dimensional model network search. The user enters a 3D model in the query interface and plans to search for all similar models of the model. The retrieval system transmits the retrieval request of the model to the search engine through the network. The search engine responds and transmits the retrieved 3D model that meets the conditions to Users, and sort the 3D models according to the similarity. The specific process is that when the system receives the retrieval request of the 3D model sent by the client user, it first obtains the feature vector of the 3D model through the feature extraction algorithm. The feature vector can uniquely express a 3D model and has a high degree of discrimination, which can be distinguished The difference with other 3D models. The feature extraction algorithm ana...

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Abstract

The invention discloses a three-dimensional model searching method based on shape orientation multi-resolution analysis, and the method comprises the following steps: obtaining an orientation sampling plane by adopting a three-dimensional plane patch orientation principle component analysis method; sampling orientation distribution of the three-dimensional shape and generating a sampling functionof the orientation distribution; analyzing the sampling function and extracting a multi-resolution low-frequency wavelet coefficient of the sampling function; and calculating feature distance in a self-adaption multi-resolution feature distance calculating method. The method can enhance the precision and speed of searching the three-dimensional model and can be applied to the fields of three-dimensional model multiplex, model identification, robot vision, virtual reality and the like.

Description

Technical field [0001] The invention relates to a three-dimensional model retrieval method. Background technique [0002] In the past two decades, with the popularization of computers, the improvement of hardware performance, and the wide application of multimedia recording and shooting equipment, multimedia information has developed rapidly in various fields, making the entire world very rich and colorful. Multimedia information mainly includes sound, image, video, and three-dimensional model. At present, the Internet, personal and industrial users' hard drives have been flooded with massive amounts of multimedia information, resulting in the explosive growth of information in various media. How to help users find the multimedia information they need in the massive content has become the research object of multimedia matching and retrieval technology. The design and production of each multimedia work requires a lot of effort and a long time. Designers can obtain similar inform...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 刘贞报张超唐小军秦琴
Owner NANTONG JINNIU MACHINERY MFR
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