Here are some general guidelines to keep in mind:
Camera/Lens Properties:
- Use a high-resolution camera
- Opt for a monochromatic sensor if possible
- Opt for a high-quality, non-zoom lens
- Set the focus to manual
- Stick with one focal length for the entire project
Camera Placement:
- Use a stable platform or the right shutter speed to avoid blurred images
- Frame the subject tightly to cover the entire sensor area
- Maintain 40-70% overlap between photos
- Ensure all areas of the object are visible in at least three images
- Follow the camera geometry required by your software
Camera Settings:
- Use shutter speed priority mode based on your camera and/or object movements
Camera system:
- Selecting a single, stereo or multi camera system will depend on the project at hand
Following these tips should help you avoid common pitfalls and produce more reliable
3D models.
In photogrammetry, precision is paramount. Each image requires optimal focus, proper illumination, and minimal lens distortion to generate superior 3D reconstructions. The image on the left likely failed to meet these critical specifications.
Using the right tools, the left image can produce results, but it has to be manually added to the processing.
