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Method for three-dimensionally reconstructing tender shoot state of tea by combining image and computation model

A technology of 3D reconstruction and calculation model, applied in the field of image processing

Inactive Publication Date: 2011-05-25
SICHUAN AGRI UNIV +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] At present, the research on accurate measurement and three-dimensional reconstruction of tea leaves on site is still rare. The growth status and maturity of tea buds have an important impact on the picking of tea and the quality of tea products in the later stage. Timely grasp the growth status of tea buds It has a positive effect on the standardized scale production of tea

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  • Method for three-dimensionally reconstructing tender shoot state of tea by combining image and computation model
  • Method for three-dimensionally reconstructing tender shoot state of tea by combining image and computation model
  • Method for three-dimensionally reconstructing tender shoot state of tea by combining image and computation model

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Embodiment Construction

[0052] The leaves of the tea are grown on the stem, and the leaves are tall and straight. A slender and hard vein runs through the center of the leaf. The morphological characteristics are very obvious. To reproduce the realistic tea leaves on the computer, it is necessary to construct a space curve describing the veins. , the mathematical model of leaf shape features and leaf edge features.

[0053] On the same branch, the uppermost part is the terminal bud, followed by young leaves and young leaves. Generally, the new leaves on the upper part are relatively upright, and as the leaf age grows, the leaves gradually flatten from top to bottom, and the shape of the leaves is oval. There are small serrations, the tea leaves are reticular veins, with obvious main veins, and many side veins to both sides, and several small veins are divided between the side veins. The main vein and the lateral vein form an angle of about 45-80°. The leaf surface of the tea leaves is curved, and th...

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Abstract

The invention relates to the technical field of image processing and discloses a method for three-dimensionally reconstructing a tender shoot state of tea by combining an image and a computation model. The method comprises the following steps of: acquiring a tea digital image; after the spatial switching of color, segmenting the tender shoots of the tea image by an improved algorithm based on color and region growth; calculating three-dimensional coordinates of the tender shoots by the image of the segmented tender shoots of the tea and extracting all characteristic parameters; matching and calculating according to a data model base of the leaf shapes of the tea; and three-dimensionally reconstructing the tender shoots of the tea through VC++ by combining the image. Test results prove that the method avoids a large amount of calculation, visual effect is good, three-dimensional information of the tender shoots of the tea can be stored well, and the provided modeling method has variability, so the growing of the tender shoots of the tea can be simulated. A new method is proved for the growth monitoring and nondestructive testing of the tea.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a method for three-dimensionally reconstructing the shape of tea buds in the on-site tea image by combining tea images and calculation models. Background technique [0002] Three-dimensional reconstruction of plant morphology is one of the important issues in the field of agronomy and computer vision. Through the three-dimensional reconstruction of plant morphology, the morphological structure of plants can be accurately reproduced, and the qualitative and quantitative characteristics and physiological and ecological processes related to plant morphological structure can be analyzed. In recent years, the precise measurement and three-dimensional reconstruction of crop morphological parameters using images or videos has attracted more and more attention of researchers. The earliest research reports in this area mostly took trees as the research objects, and then there were...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00
Inventor 汪建
Owner SICHUAN AGRI UNIV
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