9.5 HD Enhancement

What HD Enhancement Does

HD Enhancement raises the detail and texture quality of specific areas in a model by adding supplementary photos shot with a high-resolution camera, a smartphone, or a DSLR. LCC combines those photos with the original scan during reconstruction, so a landmark facade, a piece of machinery, or fine decorative detail comes out sharper than the scan alone would render it. Use it on the few areas that carry the deliverable, not the whole site.

Photo Requirements

• One camera for all photos. Every supplementary photo in a job must come from the same device. Mixing cameras affects recognition or fails it outright.
• Supported formats. JPG, JPEG, and PNG.
• Wide-angle lens. Shoot with roughly a 100-degree horizontal field of view. A wide frame gives the matcher more context to lock onto.
• Fixed focal length and frame size. Set them once and do not change them during capture. Changing focal length or frame size mid-shoot breaks the photo set.

Capture the Supplementary Photos

Shoot the HD photos after you finish the primary scan, targeting only the areas that need the extra detail.

1. Work one area at a time. Aim at a key area and shoot it continuously from multiple angles before moving to the next.
2. Take 20 or more consecutive photos per area, holding at least 80% overlap between adjacent frames.
3. Overlap the scan too. Make sure the photos share coverage with the original scan of that area, so LCC can register them to the model.
4. Move smoothly. Avoid large, sudden camera moves between frames. Keep focus sharp and exposure steady, and avoid motion blur.

Photo Count Limits

The number of supplementary photos a job accepts depends on the device, and on PortalCam, on whether HD Enhancement control points are used.

Stay within the range for your device. Fewer than 20 photos of an area does not give the matcher enough to work with, and exceeding the ceiling is not accepted.

Run It in LCC Studio

1. Create the project and enable HD Enhancement in the reconstruction settings for the scene. Like other reconstruction settings, it is chosen before the run.
2. Import the supplementary photos when prompted, keeping the whole set from the one camera together.
3. Confirm the workstation meets the 8 GB GPU memory floor, then start the reconstruction. LCC combines the photos with the scan automatically and delivers the enhanced areas in the finished model.