A high precision automatic pricking control point method based on DOM and DEM

doi:10.13474/j.cnki.11-2246.2019.0088

测绘通报 ›› 2019, Vol. 0 ›› Issue (3): 108-112.doi: 10.13474/j.cnki.11-2246.2019.0088

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A high precision automatic pricking control point method based on DOM and DEM

WANG Mingming¹, WANG Jia¹, FENG Zhongke¹, SHEN Chaoyong²

1. Beijing Key Laboratory of Precision Forestry, Beijing Forestry University, Beijing 100083, China;
2. Guizhou Provincial Third Institute of Surveying and Mapping, Guiyang 550004, China

Received:2018-03-15 Online:2019-03-25 Published:2019-04-02

Abstract

Abstract: Referring to the basic geographic data updating requirements,in order to eliminate the field work in laying control points,reduce the office workload in pricking points and improve the precision and density of control points,this paper presents a method based on existing DOM and DEM data by using IPS and auxiliary software to realize high-precision automatic pricking control points.Clipping the existing DOM according to specific matching requirements,loading the DOM and the images into IPS at the same time to match tie points,calculating the object space coordinates of the matched points according to DOM graphic reference,tie points image coordinates,TFW file and DEM.Removing the error points through adjustment detection and visual inspection,then changing the attribute of the matched points to complete the work of pricking control points.After that,we can continue processing in IPS to complete the steps of aerial triangulation,geographic information product production etc.,or export and convert them into other software format for subsequent processing.

Key words: multi-temporal image, high precision matching, automatic pricking point

CLC Number:

P237

WANG Mingming, WANG Jia, FENG Zhongke, SHEN Chaoyong. A high precision automatic pricking control point method based on DOM and DEM[J]. 测绘通报, 2019, 0(3): 108-112.

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A high precision automatic pricking control point method based on DOM and DEM

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