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

A multi-resolution analysis, 3D model technology, applied in the field of 3D model retrieval, can solve the problems of low feature discrimination, long extraction time, poor stability, etc., to improve feature discrimination, ensure maximization and optimization, and improve speed. Effect

Inactive Publication Date: 2010-12-15
NANTONG JINNIU MACHINERY MFR +1
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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 1A detailed system flow diagram for 3D model retrieval is shown in Fig. The technology of the present invention can realize the system function of three-dimensional model network search. The user inputs a 3D model in the query interface and plans to search for all similar models of the model. The retrieval system sends the retrieval request of the model to the search engine through the network, and the search engine responds by sending the retrieved 3D models that meet the requirements to users, and sort the 3D models according to the degree of 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 a feature extraction algorithm. The feature vector can uniquely express a 3D model and has a high degree of discrimination, which can It is different from other 3D models. Feature extraction algorithms analyze shape orientatio...

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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 function of 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 whole world very rich and colorful. Multimedia information mainly includes sound, image, video and three-dimensional model. At present, massive amounts of multimedia information have been flooded on the Internet and hard disks of individual and industrial users, resulting in explosive growth of information in various media. How to help users find the multimedia information they need in the mass 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 Applications(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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