What the Evidence Confirms
DAVID 5 can be operated with two cameras, and a dual-camera upgrade kit was offered for the HP Structured Light Scanner Pro S3 using a second HP 3D HD Camera Pro. The operator reported successful camera and projector calibration but poor scan results that appeared not to fuse correctly. The available evidence does not identify the camera models, software configuration, calibration sequence, or the actual defect because the referenced screenshot is unavailable.
Separate Calibration Failure from Alignment Failure
| Observation | Status | Engineering decision |
|---|---|---|
| Both camera views produce geometry, but the surfaces are displaced | Possible stereo-calibration or physical-alignment problem | Recheck the complete dual-camera calibration without moving either camera, the projector, or the calibration target afterward. |
| Only one camera contributes usable geometry | Possible configuration or acquisition problem | Confirm that DAVID 5 recognizes and uses both cameras in the dual-camera workflow. |
| Each camera scans acceptably alone, but the combined result is poor | Fusion or shared-calibration hypothesis | Verify that both views belong to the same calibration rather than assuming two independent single-camera calibrations are sufficient. |
These are diagnostic hypotheses, not confirmed DAVID 5 behaviors. The evidence does not establish whether DAVID 5 requires one combined stereo calibration, separate calibration of each camera view, or an additional registration operation.
Controlled Troubleshooting Procedure
- Confirm the installed hardware matches a DAVID 5 dual-camera configuration and that the software detects both cameras.
- Capture the result from each camera separately. Determine whether the defect exists in one view or appears only when both views are combined.
- Repeat the documented camera-and-projector calibration for the dual-camera configuration. Do not reposition the cameras, projector, calibration target, or mounts during the calibration and comparison sequence.
- Compare unchanged-object scans from each view. Look for consistent surface displacement, scale disagreement, or missing geometry before attempting further fusion.
- If the required second-camera calibration sequence remains unclear, consult the DAVID 5 manual or HP support documentation for the installed dual-camera kit. Do not substitute a single-camera procedure unless the documentation explicitly permits it.
Verification Criteria
Accept the setup only when both cameras are detected, each view produces usable geometry, and the combined scan aligns the same physical features without repeatable displacement. If separate views are sound but the combined result remains offset, preserve the setup and calibration data for support review; that isolates the fault to the stereo configuration or fusion stage rather than basic image acquisition.
FAQ
Does DAVID 5 support scanning with two cameras?
Yes. The evidence identifies a dual-camera upgrade for the HP Structured Light Scanner Pro S3 using a second HP 3D HD Camera Pro.
Do I calibrate each DAVID 5 camera separately?
The available evidence does not define the required sequence. Follow the DAVID 5 instructions for the installed dual-camera configuration and verify that both views share the calibration used for the combined scan.
Why do two DAVID 5 camera scans fail to fuse?
First test each camera independently. Good individual scans with a displaced combined result point toward the shared stereo calibration, physical alignment, or fusion configuration; a defective individual view points toward acquisition or that camera's calibration.
