Abstract: Disclosed are techniques for detecting presence of shadowing introduced in a system. The techniques entail geometrically projecting, along a virtual or actual propagation direction of laser beam scanning, points of a lower convex hull (CH) planar object in a direction toward a higher CH planar object to establish projection locations of the points of the lower CH planar object along the propagation direction. Detection of whether the projection locations are in proximity to locations of points of the higher CH planar object is performed. In response to detecting locations in proximity for each source laser beam scanning, a shadowing event indication is generated to alert a user of the system that shadowing has been introduced in the system.

Abstract: Disclosed are techniques for detecting presence of shadowing introduced in a system. The techniques entail geometrically projecting, along a virtual or actual propagation direction of laser beam scanning, points of a lower convex hull (CH) planar object in a direction toward a higher CH planar object to establish projection locations of the points of the lower CH planar object along the propagation direction. Detection of whether the projection locations are in proximity to locations of points of the higher CH planar object is performed. In response to detecting locations in proximity for each source laser beam scanning, a shadowing event indication is generated to alert a user of the system that shadowing has been introduced in the system.

Abstract: Methods and systems for measuring volume and size of features such as lesions, tumors, sores, and wounds external to animal, human and plant skin, using 3D structured light scanners are provided. These methods and systems obtain a point cloud of the scanned feature, and employ algorithms to adjust the suggested feature geometry parameters to minimize deviations of the point cloud from suggested feature geometry. Obtained geometry parameters permit the calculation of the features' sizes and volumes.