Electro-optical & Remote Sensing Technology
Development of VCDi-II
Purpose
In 2003, ITRC developed the Vegetation and Change Detection Imager (VCDi), which is the first airborne multispectral remote sensing instrument developed in Taiwan. VCDi is developed for Agriculture, land usage planning, pollution monitoring , and disaster surveillance. As the 2nd version of VCDi, VCDi-II has several improvements beyond VCDi on band selection, swath, and operation, and the improvements make it more versatile on application.
Specifications & Features
| Spec | VCDi-II VNIR | VCDi-II SWIR |
|---|---|---|
| Lens | 4 lens with changeable 4 bands | 1 lens with changeable 1 bands |
| Bands | B1: 0.45 µm – 0.52 µm B2: 0.50 µm – 0.64 µm B3: 0.62 µm – 0.77 µm B4: 0.75 µm – 0.90 µm |
1.3 µm – 1.7 µm |
| Focal Length | 36 mm | 9.58 mm |
| hFOV | 31°, 26.6° (H) × 18.5° (V) 2 km swath (2000m altitude) |
32.5°, 26.6° (H) × 21.4° (V) 2 km swath (2000m altitude) |
| IFOV | 0.25 mrad 0.5m GSD (2000m altitude) |
3.13 mrad 6.25m GSD (2000m altitude) |
| F-number | F/4 | F/4 |
| Distortion | < 3% | < 3% |
| Telecentricity | < 6 | < 6 |
Applications
- Investigations on Agriculture and Wood
- Land Usage, Urban Planning
- Monitoring Pollutions of Environment
- Rescuing, Recovering of Disasters
VCDi-II Lens design
Synthesized RGB image of Hsinchu Science-based Industrial Park form VCDi
Contact
Ting-Ming Huang
E-mail: tmw@itrc.org.tw
