Abstract: A system and method are presented for using a two-dimensional (2D) LiDAR for three dimensional (3D) laser mapping. The 2D-LiDAR is mounted in a chassis. The method laser ranges a planar slice of the environment. Simultaneous with laser ranging the planar slice, the 2D LiDAR chassis is rotated about an axis to create a 3D laser mapping of at least a portion of the environment. More explicitly, the 2D LiDAR may include a laser ranger with a planar actuator, typically the combination of a laser and a rotating mirror. In addition, the 2D LiDAR chassis is mounted on a reciprocating actuator. Thus, the step of laser ranging the planar slice includes laser ranging the planar slice in response to the planar actuator. The step of rotating the 2D LiDAR chassis includes rotating the 2D LiDAR chassis around an axis parallel to the planar slice, in response to the reciprocating actuator.

Abstract: A system and method are provided for a mobile unit to select a wireless access point. The method provides a mobile unit with a wireless transponder and a location determination device, such as a global positioning satellite (GPS) receiver. A local features database is stored in the memory, cross-referencing a plurality of wireless access points (APs) to corresponding geographic locations. In response to receiving location information, a wireless AP selection application determines the geographic position of the mobile unit, accesses the local features database, and selects the wireless AP associated with the geographic position of the mobile unit. Finally, the wireless AP selection application directs the transponder to communicate with the selected wireless AP. In one aspect, the local features database divides a geographic region into sub-regions, with a corresponding wireless AP assigned to each sub-region. For example, each sub-region may assigned to the closest wireless AP.

Abstract: A system and method are presented for using a two-dimensional (2D) LiDAR for three dimensional (3D) laser mapping. The 2D-LiDAR is mounted in a chassis. The method laser ranges a planar slice of the environment. Simultaneous with laser ranging the planar slice, the 2D LiDAR chassis is rotated about an axis to create a 3D laser mapping of at least a portion of the environment. More explicitly, the 2D LiDAR may include a laser ranger with a planar actuator, typically the combination of a laser and a rotating mirror. In addition, the 2D LiDAR chassis is mounted on a reciprocating actuator. Thus, the step of laser ranging the planar slice includes laser ranging the planar slice in response to the planar actuator. The step of rotating the 2D LiDAR chassis includes rotating the 2D LiDAR chassis around an axis parallel to the planar slice, in response to the reciprocating actuator.

Abstract: Aspects of the present invention comprise systems and methods for efficient image processing. Some aspects relate to non-sequential processing of image data to reduce processing time Some aspects relate to image processing methods that reduce memory read and/or write operations. Some aspects relate to image processing methods that combine image resizing and image halftoning processes.