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Non-rigid incomplete shape corresponding method based on maximum stable region and application

A maximum stable area, non-rigid technology, used in image data processing, instruments, calculations, etc., can solve the problem of inaccurate correspondence between the overall shape and the incomplete shape of the non-rigid change

Pending Publication Date: 2022-04-12
CAPITAL NORMAL UNIVERSITY
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Problems solved by technology

[0004] The present invention intends to provide a non-rigid incomplete shape correspondence method and its application based on the maximum stable area to solve the problem of inaccurate correspondence between the overall shape with non-rigid changes and the incomplete shape

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  • Non-rigid incomplete shape corresponding method based on maximum stable region and application
  • Non-rigid incomplete shape corresponding method based on maximum stable region and application
  • Non-rigid incomplete shape corresponding method based on maximum stable region and application

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0028] Such as figure 1 A non-rigid incomplete shape correspondence method and its application based on the maximum stable region are shown, and a given complete shape model and partial shape model are characterized according to the diffusion geometry, and the feature description and the maximum stable region are calculated, and then the It performs area, landmark point and dense correspondence to solve the problem of inaccurate correspondence between the overall shape with non-rigid changes and the incomplete shape. The method includes:

[0029] S1: if figure 1 with figure 2 As shown, two non-rigid shape models are extracted from the non-rigid 3D model library, one of which has an overall shape and the other has only a partial shape.

[0030] S2: Based on diffusion geometry, perform feature detection on the two non-rigid shape models in S1 and find ...

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Abstract

The invention discloses a non-rigid incomplete shape corresponding method based on a maximum stable region and application, and relates to the field of three-dimensional shape analysis, and the method comprises the steps: S1, extracting two non-rigid shape models from a non-rigid three-dimensional model library; s2, on the basis of diffusion geometry, feature detection is carried out on the two non-rigid shape models in the S1, feature points or feature areas on the shapes are found, then feature description is carried out on each feature, and a vector describing local information is given to each feature; s3, pre-defining a component tree, setting an edge descriptor, performing maximum stable region calculation based on the edge descriptor, and defining a calculation result as a set X and a set Y; and S4, sequentially carrying out region correspondence, landmark point correspondence and dense correspondence on each region by utilizing the prediction function. By adopting the technical scheme of the invention, the problem of inaccurate correspondence between an integral shape with non-rigid change and an incomplete shape can be solved.

Description

technical field [0001] The invention relates to the field of three-dimensional shape analysis, in particular to a non-rigid incomplete shape correspondence method and application based on the maximum stable region. Background technique [0002] The basic prerequisite for the large-scale application and development of 3D models is to use computers to analyze and process their shapes. Shape correspondence mainly studies the search for meaningful relationships or mappings between shape elements from multiple given shapes. A typical problem in the field of shape correspondence research is the calculation of the correspondence between three-dimensional shapes with non-rigid changes. In this field The more challenging one is the non-rigid incomplete shape correspondence; due to the characteristics of the non-rigid incomplete shape itself, the difference in acquisition methods and the influence of noise, it not only has non-rigid deformation, but also includes other changes, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60G06T7/62G06T19/00
Inventor 王康
Owner CAPITAL NORMAL UNIVERSITY
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