GB/T 45632-2025 English PDF

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GB/T 45632-2025: Digital aerophotogrammetry - Control survey specifications
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Basic data

Standard ID: GB/T 45632-2025 (GB/T45632-2025)
Description (Translated English): Digital aerophotogrammetry - Control survey specifications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A77
Classification of International Standard: 07.040
Word Count Estimation: 30,385
Date of Issue: 2025-04-25
Date of Implementation: 2025-08-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45632-2025: Digital aerophotogrammetry - Control survey specifications

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07.040 CCSA77 National Standard of the People's Republic of China Specification for control measurement of digital aerial photogrammetry Released on 2025-04-25 2025-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 2 5 General 3 5.1 Mathematical foundations 3 5.2 Basic control points 3 5.3 Image Control Point 3 5.4 Aerial data 4 5.5 Instruments and Equipment 4 6 Preparation 5 6.1 Data Collection 5 6.2 Survey area exploration 5 6.3 Data Analysis 5 6.4 Technical Design 6 7 Image Control Point Layout 6 7.1 Layout 6 7.2 Layout regulations 6 7.3 Regional network layout 7 7.4 Single route layout 12 8 Image control point measurement 13 8.1 Field Image Control Point Measurement 13 8.2 Graphical image control point measurement 16 9 Control results record and mark 16 9.1 Control point number and results table 16 9.2 Control point marking 17 9.3 Control Points 17 10 Quality Control17 10.1 Basic Provisions17 10.2 Process Quality Control 18 10.3 Quality Inspection and Acceptance of Results 19 11 Results collation and submission 19 11.1 Results Summary 19 11.2 Results Submission 19 Appendix A (Informative) Control Point Results Table 20 Appendix B (Informative) Control Points 21 Reference 22

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed by the Ministry of Natural Resources of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee for Geographic Information Standardization (SAC/TC230). This document was drafted by. Surveying and Mapping Standardization Institute of the Ministry of Natural Resources, the Second Topographic Survey Team of the Ministry of Natural Resources, Shaanxi Surveying and Mapping Geographic Information Bureau, Shaanxi Surveying and Mapping Product Quality Supervision and Inspection Station of the Ministry of Natural Resources, Wuhan University, Chinese Academy of Surveying and Mapping, First Aerial Survey and Remote Sensing Institute of Informatics, the First Topographic Survey Team of the Ministry of Natural Resources, Wuhan Institute of Surveying and Mapping, China Municipal Engineering Central South Design and Research Institute Co., Ltd., Shaanxi Tianrun Technology Co., Ltd., Guangzhou Urban Planning, Survey and Design Institute Co., Ltd., Shenzhen Geological Construction Engineering Co., Ltd., Feiyan Airlines Remote Sensing Technology Co., Ltd., Xinchang County Geographic Information Center, Tianhua Innovation (Beijing) Standardization Technology Co., Ltd., Guangzhou Blueprint Geographic Information Technology Co., Ltd. TECHNOLOGY LIMITED. The main drafters of this document are. Wu Wei, Yan Jingxin, Wang Huanping, Xie Lurong, Zhao Wenpu, Deng Guoqing, Wang Xiaojun, Yuan Xiuxiao, Zhang Li, Zhao Yangang, Chen Jie, Yuan Kun, Xin Anxian, Chen Weiping, Zhou Jian, Wang Xiang, Huang Zhihua, Zhang Eryan, Liu Yang, Xu Wei, Zhao Ziyan, Liu Weigang, Wang Xuwei, Zhou Jinwen, Song Deqiang, Zhao Xiaoyang, Liu Yuqi, and Wang Zenan.

Introduction

At present, the entire process of digital aerial photogrammetry technology from aerial photography, control measurement, aerial triangulation to digital surveying and mapping results production has been extensively studied. The process is based on digital images. Digital aerial photogrammetry uses digital aerial cameras, global navigation satellite systems, inertial measurement units, internal Digital aerial photogrammetry technology has matured and has become an important method for producing surveying and mapping results. It has been widely used in surveying and mapping, urban construction, land and engineering, and other fields. In addition, the current digital aerial photogrammetry generally adopts global navigation. Satellite systems, positioning and attitude measurement systems, and inertial measurement units assist digital aerial photography to achieve rare ground-controlled mapping. This document is to standardize the current digital aerial photogrammetry control measurement production technology and support digital aerial It is formulated for photogrammetric control measurement work to promote the application of digital aerial photogrammetry technology. This document is consistent with GB/T 27919 "Technical Specifications for IMU/GPS-Assisted Aerial Photography" and GB/T 27920.1 "Technical Specifications for Digital Aerial Photography". GB/T 27920.2 "Digital Aerial Photography Specifications Part 2.Push-broom Digital Aerial Photography" Photography", GB/T 23236 "Digital Aerial Photogrammetry Aerial Triangulation Specification", CH/T 3007.1 "Digital Aerial Photogrammetry Mapping Specification Part 1.1.5001.10001.2000 Digital Elevation Model Digital Orthophoto Map Digital Line Drawing, CH/T 3007.2 Specification for Digital Aerial Photogrammetry and Mapping Part 2.1.5000 1.10000 Digital Elevation Model Digital Orthogonal Digital Line Drawing of Photogrammetry", CH/T 3007.3 Specification for Digital Aerial Photogrammetry and Mapping Part 3.1.25000 1.500001.100000 digital elevation model digital orthophoto map digital line drawing together to support digital aerial photography survey A series of standards for quantity. Specification for control measurement of digital aerial photogrammetry

1 Scope

This document specifies the general principles, preparation, image control point layout, image control point measurement, control The results recording and marking, quality control, results compilation and submission, and the corresponding verification methods are described. This document is applicable to the production of basic geographic information digital results using digital aerial photogrammetry methods at scales of 1.500, 1.1000, 1.2000, 1.5000, 1.10000, 1.25000, 1.50000 digital elevation model, digital surface model, digital orthophoto map, Digital line drawings control the measurement phase of production operations.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 7931 1∶5001∶10001∶2000 Field specification for aerial photogrammetry of topographic maps GB/T 12341 1∶250001∶500001∶100000 Field specification for aerial photogrammetry of topographic maps GB/T 13977 1∶50001∶10000 Field specification for aerial photogrammetry of topographic maps GB/T 18314 Global Navigation Satellite System (GNSS) Measurement Specification GB/T 24356 Quality inspection and acceptance of surveying and mapping results GB/T 27919 Technical Specification for IMU/GPS Assisted Aerial Photography GB/T 27920.1 Specification for digital aerial photography Part 1.Frame-type digital aerial photography GB/T 27920.2 Specification for digital aerial photography Part 2.Push-broom digital aerial photography GB/T 39616-2020 Specification for real-time kinematic measurement (RTK) of satellite navigation and positioning base station network CH/T 1001 Rules for the preparation of surveying and mapping technical summaries CH/T 1004 Surveying and Mapping Technical Design Regulations CH/T 1024 Technical Specification for Quality Inspection of Image Control Measurement Results

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Using aircraft, airships, balloons and other aerial vehicles as platforms, digital aerial cameras are used to take photographs at a height within the Earth's atmosphere. The technology of photographing the earth's surface. 3.2 Adopting the principle of digital projection intersection, the digital aerial images are corrected and processed to measure the shape, size, spatial position, properties and Technical approach to interrelationships. ......

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