GB/T 41454-2022 in English
VALIDSpecifications for quality inspection and acceptance of real scene image products
- Issued on:2022-04-15
- Implemented on:2022-04-15
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$220.00
$214.00
$214.00
《GB/T 41454-2022实景影像数据产品质量检查与验收》由TC230（全国地理信息标准化技术委员会）归口，主管部门为自然资源部(测绘地理)。
Introduction
Analysis of the core quality indicator system
| Quality elements | Weight | Key indicators |
|---|---|---|
| Mathematical accuracy | 10% | Plane error ≤0.3m0 Elevation detection points ≥20 |
| Image quality | 50% | Noise and stain tolerance Allowable value of stitching seams |
| Metadata compliance | 10% | File naming conventions Coordinate system verification |
Tips for scenario-based implementation
Traffic network survey:Shoot at noon on a sunny day to avoid traffic peaks;
Urban 3D modeling:Ensure that the image reshoot interval is ≤30% of the image format
Urban 3D modeling:Ensure that the image reshoot interval is ≤30% of the image format
Chengdu Longquanyi Project Audit Case
- Problem details: 73 images lack atmospheric refraction compensation
- Solution: Enable deep learning dehazing algorithm for batch repair
- Repair results: PSNR value increased to 38.52Db
Quality dispute handling mechanism
| Defect type | Class A | Class B | Class C |
|---|---|---|---|
| Typical cases | Elevation benchmark error | Image positioning exceeds the limit | Number is not standardized |
| Correction deadline | 72 hours | 120 hours | Updated with version |
International standard benchmark analysis
ISO 19131 connection requirements: Use minute-by-minute latitude offset correction algorithm
OGC specification mapping: WMS extension service is mandatory to pass the test
OGC specification mapping: WMS extension service is mandatory to pass the test
Sample only — not a preview of GB/T 41454-2022
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