Land consolidation linear ground object matching method based on mobile computing

A linear feature and land consolidation technology, applied in computing, image data processing, instruments, etc., can solve problems such as inaccurate and timely judgment of the number and location of construction projects, interpretation errors of linear features in the finishing area, etc., to achieve The effect of saving workload and time and improving work efficiency

Inactive Publication Date: 2010-08-04
CHINA AGRI UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for matching linear features in land consolidation based on mobile computing, so as to solve the problem of inability to accurately and timely judge whe

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  • Land consolidation linear ground object matching method based on mobile computing
  • Land consolidation linear ground object matching method based on mobile computing
  • Land consolidation linear ground object matching method based on mobile computing

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[0035] The land consolidation linear feature matching method based on mobile computing proposed by the present invention is described as follows with reference to the drawings and embodiments.

[0036] Such as figure 1 As shown, in step S1, the planning and design drawing of the land consolidation area is imported into the PDA / GPS device, the linear features in the planning and design drawing are vectorized and extracted, and each linear feature curve after extraction is used as a reference Curve, denoted as C p , The linear features are generally roads, ditches, etc. in the land consolidation area.

[0037] Step S2: At the site of the land consolidation area, use PDA / GPS equipment to generate and extract thematic maps of linear features, and use the generated linear features as image curves, denoted as C r .

[0038] Step S3, reference curve C in S1 p Traverse all the image curves C generated in S2 r Matched curve, denoted as C p k , The matching method is as follows:

[0039] In C...

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Abstract

The invention discloses a land consolidation linear ground object matching method based on mobile computing, comprising the following steps: guiding a designing plan of a land consolidation area in a PDA/GPS device, performing vectorization extracting on linear ground objects in the designing plan, taking the extracted linear ground object curves as reference curves and marking as Cp; generating and extracting the thematic map of the linear ground objects on site by using the PDA/GPS device, taking the generated linear ground objects as image curves and marking as Cr; traversing all curves matched with the image curves Cr from the reference curves Cp, and marking as Cpk; and performing rough matching and precise matching on the Cr to obtain the optimum matched curve Cpk, calculating the distance between a control point on the Cpk and a control point on the Cr, and judging whether the distance is within the error range of the construction requirement. The invention can judge whether the quantity and positions and the like of a construction work are consistent with the original designing plan accurately and timely so as to provide real and reliable basic information for land consolidation item areas.

Description

technical field [0001] The invention relates to the technical field of land consolidation linear feature supervision, in particular to a mobile computing-based land consolidation linear feature matching method. Background technique [0002] During the implementation of land consolidation projects, on-site investigation plays an important role in every management link. However, the traditional on-site investigation method cannot realize the real-time linkage between the project area and the drawings, resulting in the quality and efficiency of the investigation work not meeting the requirements. The specific performance is that the quantity and location of the construction projects cannot be accurately and timely judged whether they are consistent with the original planning and design. Figure 1 In particular, there are large errors in the interpretation of linear features in the finishing area. Furthermore, it is impossible to provide true and reliable basic information of th...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 李道亮朱广明陈英义
Owner CHINA AGRI UNIV
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