User manual

Inadequate Exposure and/or Missing Points

Objects that have stark, contrasting colors necessitate different camera

exposures and might prove difficult during automatic “tuning.” Tuning is the

process by which the software determines the best camera exposure for

capturing the color of the object and the best exposure for capturing where the

laser is hitting the object.

Repositioning the object on the turntable so the camera can tune to a different

side of the object might resolve this problem. A second option is to utilize the

“High Contrast Scanning” function under the Advanced Scanning menu.

Some objects that have intertwined high constrasting colors can’t be scanned

with one exposure. Dual exposure will yield impressively better results.

Spending a few extra minutes manually setting the exposures for objects with

stark color contrasts will likely lead to complete point clouds and watertight

meshes. See High Contrast Scanning (p. 52) for more details.

In the following example, an attempt to scan an apple with a very light spot near

the stem proved very difficult using automatic tuning.

Bad Exposure

Point Cloud PLY File Format

Note the area of the apple where the Color

was light wasn’t captured at all.

Bad Exposure Final Outcome

Meshed OBJ File Format

Note where the missing data led to the apple

looking like a bite was taken from it.

Proper Exposure

Point Cloud PLY File Format

Note the light spot on the apple has been

captured.

Proper Exposure Final Outcome

Meshed OBJ File Format

Final mesh has better Color and more

accurate surface detail overall.