GB/T 12979-2024 in English
VALIDSpecifications for close-range photogrammetry
- Issued on:2024-08-23
- Implemented on:2025-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
| Standard No: | GB/T 12979-2024 |
| Document status: | VALID |
| Title in English: | Specifications for close-range photogrammetry |
| Title in Chinese: | 近景摄影测量规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2024-08-23 |
| Implemented on: | 2025-03-01 |
| Superseding: |
GB/T 12979-2008 Specifications for close-range photogrammetry
|
| ICS Classification: | 07.040-Astronomy. Geodesy. Geography |
| Chinese Classification: | A77-Photogrammetry and Remote Sensing |
| Professional Classification: | GB-National Standard |
| Related Keywords: | close range photogrammetry close range photogrammetry
close-range photogrammetry close-range photogrammetry technical requirements close-range photogrammetry introduction overview photogrammetry mean error image acquisition choose |
| Related Topics: | Measure
GBT12979 GB/T 12979-1991 GB/T 12979-2008 close range photogrammetry The latest version of the specifications for close range photogrammetry Close-range photogrammetry fieldwork |
《GB/T 12979-2024近景摄影测量规范》由TC230（全国地理信息标准化技术委员会）归口，TC230SC2（全国地理信息标准化技术委员会测绘分会）执行，主管部门为自然资源部(测绘地理)。
Introduction
Overview of Close Range Photogrammetry
Close range photogrammetry is an important branch of photogrammetry, which uses photography to obtain the geometric information and motion state of the target object. It has a wide range of applications, covering construction engineering, machinery manufacturing, aerospace, cultural heritage protection and other fields.
Background and significance of standard update
GB/T 12979-2024 replaces the old version GB/T12979-2008. The main updates include:
- Adjustment of scope and technical requirements
- Addition of new chapters on terms and definitions
- Optimization of object space control and image acquisition methods
- Introduction of structured light photogrammetry technology
- Improvement of data processing and accuracy verification process
Core elements of close-range photogrammetry
| Technical requirements | Specific specifications | Key indicators |
|---|---|---|
| Accuracy indicators | Use relative mean error, $md/D$ or $ms/S$ can be selected, or point mean error can be used. | $m_d/ D$, $m_s/S$ |
| Object space control | Deploy 3D, 2D or 1D control points, and use standard ruler method or GNSS measurement. | Point mean error is less than 1/3 of photogrammetry mean error |
| Image acquisition | Choose a suitable camera and lens to ensure that the object space resolution is better than the point mean error. | The field of view angle is not less than $15^{\circ}$, and the depth of field covers the target object. |
Implementation Suggestions and Application Cases
1. Application in Engineering Surveying
In large-scale construction projects, close-range photogrammetry can be used for elevation mapping and structural deformation monitoring. For example, in a modern building design, a multi-camera station layout combined with structured light projection technology was used to achieve high-precision three-dimensional modeling.
2. Cultural Heritage Protection
In ancient building restoration projects, close-range photogrammetry provides accurate three-dimensional models and structural analysis data. The standard ruler method and the angle measurement forward intersection method are used to ensure the accuracy of control points and provide a reliable basis for subsequent restoration work.
Conclusion and Prospects
With the advancement of technology, close-range photogrammetry has shown broad application prospects in many fields. Future research should focus on high-precision algorithm optimization, automated data processing and multi-source data fusion technology.
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