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Three-dimensional green quantity method for arbors

A three-dimensional, green volume technology, applied in the field of measurement, can solve problems such as unfavorable large-area measurement, neglect of the space density occupied by leaves, and neglect of the space structure of leaves.

Inactive Publication Date: 2016-06-01
申茂军
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Problems solved by technology

[0003] From the current domestic and foreign research on green quantity, it can be seen that no matter from two-dimensional or three-dimensional measurement of green quantity, there are certain limitations. Two-dimensional leaf area index ignores the spatial structure of leaves and is not conducive to large-area measurement. Three-dimensional The green amount simulates the canopy as a geometric body, but the space density occupied by the leaves in the geometry is ignored. Both limitations are mainly due to the limitation of measurement methods

Method used

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Embodiment Construction

[0020] The present invention includes the following steps.

[0021] (1) Use a three-dimensional laser scanner to scan standing trees of different tree species and different diameter steps; scan individual sample trees.

[0022] The specific process of internal business processing is as follows.

[0023] Coordinate registration; use the same-name point pairing method to force the data of each station to be in the same instrument coordinate system; 3D modeling; combine the point cloud data measured by each station into a complete point cloud model of the measurement target; Model the details of the measurement target, complete the modeling of the measurement target, and generate tree point cloud data; apply processing; generate cross-sectional diagrams, projection diagrams, and contour diagrams, and output the point cloud data through data interfaces; The measurement of the model obtains diameter at breast height, tree height, diameter at any part of the trunk, trunk volume, cr...

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Abstract

The invention provides an arbor three-dimensional green quantity method and belongs to the technical field of measurement methods, which particularly relates to a three-dimensional green quantity method for arbors. Based on three-dimensional green quantity method for arbors, the crown actual shape of an arbor can be truly reflected. The method comprises the steps of scanning standing trees of different tree species and different diameter classes by means of a three-dimensional laser scanner; scanning each individual sample tree; conducting the treatment within the industry according to the specific process of coordinate correction; conducting the corresponding point matching method and compulsively constraining the data of each observation station in the coordinate system of a single instrument; three-dimensionally modeling; piecing together point cloud data measured by all observation stations to be a complete point cloud model of a measurement target; modeling the detail of the measurement target to complete the modeling of the measurement target; generating the point cloud data of trees; application handling; generating a cross-section drawing, a projection drawing and a contour map; processing the point cloud data and outputting the processed point cloud data via a data interface; and conducting the measurement on the model.

Description

technical field [0001] The invention belongs to the technical field of measurement methods, in particular to a method for the three-dimensional green quantity of trees. Background technique [0002] "Green amount" was first proposed as a quantification of the ecological effect of vegetation. Starting from the ecological energy conversion and the physiological functions of plant stems and leaves, the more leaves and the larger the canopy, the greater the chance of photosynthesis of the plant. The associated ecological effects are relatively high. The three-dimensional green quantity was first proposed as the level of urban landscaping, called "green three-dimensional quantity", which refers to the space volume occupied by the stems and leaves of green plants. [0003] From the current domestic and foreign research on green quantity, it can be seen that no matter from two-dimensional or three-dimensional measurement of green quantity, there are certain limitations. Two-dimens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
Inventor 申茂军
Owner 申茂军
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