공연
Helios2+ Performance Results (Normal Modes)
Interactive graphs
Helios2+ Accuracy | Normal Modes| Distance (m) | Accuracy |
|---|
| 1250mm Mode (up to 1.25m) | ± 4 mm |
| 3000mm Mode (up to 3.0m) | ± 10 mm |
| 4000mm Mode (up to 4.0m) | ± 10 mm + 0.25% of depth |
| 5000mm Mode (up to 5.0m) | ± 4 mm + 0.1% of depth |
| 6000mm Mode (up to 6.0m) | ± 10 mm + 0.5% of depth |
| 8300mm Mode (up to 8.3m) | ± 4 mm +0.2% of depth |
Helios2+ Precision | Normal Modes| Distance (m) | 1250mm Mode | 3000mm Mode | 4000mm Mode | 5000mm Mode | 6000mm Mode | 8300mm Mode |
|---|
| 0.5* | 1.0 mm | 1.9 mm | 2.1 mm | 0.7 mm (0.629 mm) | 3.6 mm | 0.8 mm |
| 1 | 0.8 mm | 1.3 mm | 2.1 mm | 0.6 mm (0.287 mm) | 2.7 mm | 0.6 mm |
| 1.5 | 1.1 mm | 2.5 mm | 2.9 mm | 0.9 mm (0.463 mm) | 4.0 mm | 1.1 mm |
| 2 | 1.8 mm | 3.7 mm | 4.9 mm | 1.4 mm (0.726 mm) | 7.8 mm | 1.7 mm |
| 3 | | 5.7 mm | 8.6 mm | 2.2 mm (1.296 mm) | 10.0 mm | 2.5 mm |
| 4 | | | 12.3 mm | 3.3 mm (1.904 mm) | 15.7 mm | 4.1 mm |
| 5 | | | | 5.1 mm (2.845 mm) | 28.1 mm | 6.1 mm |
| 6 | | | | | 30.1 mm | 7.9 mm |
| 7 | | | | | | 11.8 mm |
| 8 | | | | | | 14.48 mm |
The number in brackets () is Precision results of HDR Low Noise Mode. We are only showing the 5000mm mode results to illustrate the benefits but HDR mode is available for all distance modes and improves prevision for all modes.
*0.5 m distance precision measured with 250 µs exposure time, all other distances using 1000 µs exposure time measured with white paper target.
Test Conditions:
- Target: White paper mounted on bar attached to motion stage
- Helios2+ positioning: mounted on tripod, laser distance meter used to measure distance from case front to stage zero position
- Camera setting: Coord3D_C16 Pixel Format, bilateral filtering OFF, camera warmed up for 20 minutes.
- Imaging environment: Room light on during testing, black material used to minimize reflections off floor
- Motion stage moved in 50mm steps, for each step measure depth over 10x10 pixel ROI at image center, repeat 32 times at each position
- Accuracy measured as difference between camera’s average measured depth across the ROI and 32 images and the ground truth depth (stage zero distance + stage position)
HDR Precision (5000mm Mode)
Exposure Time is 250μs for distances of 800mm and below, 1000μs for distance above 800mm.
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