Abstract: A light detection and ranging (LIDAR) based object tracking system includes a plurality of light emitter and sensor pairs and an object tracker. Each pair of the plurality of light emitter and sensor pairs is operable to obtain data indicative of actual locations of surrounding objects. The data is grouped into a plurality of groups by a segmentation module. Each group corresponds to one of the surrounding objects. The object tracker is configured to (1) build a plurality of models of target objects based on the plurality of groups, (2) compute a motion estimation for each of the target objects, and (3) feed a subset of data back to the segmentation module for further grouping based on a determination by the object tracker that the subset of data fails to map to a corresponding target object in the model.

Abstract: Automatic calibration between laser and vision sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes evaluating depth-based feature points obtained from the laser sensor with edge information obtained from the vision sensor and generating calibration rules based thereon.

Abstract: Automatic calibration between laser and vision sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes evaluating depth-based feature points obtained from the laser sensor with edge information obtained from the vision sensor and generating calibration rules based thereon.

Abstract: A query having a Union All view is identified. A logical join between Union AH view/derived table and other tables is broken down into multiple physical joins. The physical joins are pushed to the branches. Cost-based processing statistics are obtained for the branches. An optimal plan for the joins is selected based on the statistics; representing an optimal query execution for the query. The optimal query execution plan is provided to a database engine for executing the optimal query execution plan against a data warehouse.

Abstract: Methods of route planning for a moveable device and associated systems are disclosed herein. In representative embodiments, the method includes (1) downsampling a 3-D point cloud generated by a distance-measurement component of the movable device to obtain a downsampled point cloud; (2) extracting ground points from the downsampled point cloud; (3) analyzing the ground points in a surface-detecting direction; and (4) identifying an object based at least in part on the downsampled point cloud and the ground points. The identified object and the ground points can be used for planning a route for the moveable device.

Abstract: Automatic calibration of laser sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes determining an overlapping region of point cloud data generated by laser sensors, comparing surface features of the point clouds within the overlapping region, and generating calibration rules based thereon.

Abstract: Correcting motion-based inaccuracy in point cloud data generated by one or more sensors carried by a scanning platform, and associated systems and methods are disclosed herein. A representative method includes associating a motion model with a target object of the point cloud, estimating adjusting factors based on the motion model, and adjusting scanning points in the point cloud using the adjusting factors.

Abstract: A bond head comprises an insulation block, a heater plate attached to the insulation block and a collet located on the heater plate for holding a semiconductor device. The heater plate is operative to heat the semiconductor device that is held by the collet. A flow generation plate that is detachably mounted between the insulation block and the heater plate is configured to direct cooling gas from the insulation block onto the heater plate so as to rapidly cool the heater plate.

Abstract: Correcting motion-based inaccuracy in point cloud data generated by one or more sensors carried by a scanning platform, and associated systems and methods are disclosed herein. A representative method includes associating a motion model with a target object of the point cloud, estimating adjusting factors based on the motion model, and adjusting scanning points in the point cloud using the adjusting factors.

Abstract: A large scale dense mapping technique utilizes range data that identifies points in three dimensions. The large scale dense mapping technique utilizes the range data obtained from range sensors coupled with a depth integration technique. After dividing the world, or a portion of the world, into cells and voxels, a mapping system collects range data for a portion of the environment. To speed up the processing involving the large number range measurements, Graphics Processing Unit (GPU) memory, can be used to store data relating to the mapping of the environment. Instead of storing all of the cells of volumetric representation in the memory, just the portion of the cells associated with the range data are stored within the memory. The mapping system can use an SDF or a TSDF based volumetric representation format to represent the environment. The SDF or TSDF based volumetric representation is updated using the range data.

Abstract: Automatic calibration of laser sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes determining an overlapping region of point cloud data generated by laser sensors, comparing surface features of the point clouds within the overlapping region, and generating calibration rules based thereon.

Abstract: Automatic calibration of laser sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes determining an overlapping region of point cloud data generated by laser sensors, comparing surface features of the point clouds within the overlapping region, and generating calibration rules based thereon.

Abstract: Automatic calibration between laser and vision sensors carried by a mobile platform, and associated systems and methods are disclosed herein. A representative method includes evaluating depth-based feature points obtained from the laser sensor with edge information obtained from the vision sensor and generating calibration rules based thereon.

Abstract: A bond head comprises an insulation block, a heater plate attached to the insulation block and a collet located on the heater plate for holding a semiconductor device. The heater plate is operative to heat the semiconductor device that is held by the collet. A flow generation plate that is detachably mounted between the insulation block and the heater plate is configured to direct cooling gas from the insulation block onto the heater plate so as to rapidly cool the heater plate.

Abstract: Techniques for updating join indexes are provided. A determination is made to update date criteria in a join index query statement. The join index is parsed for current date and current time criteria. The join index is revised based on the location of the current date and current time criteria as they appear in the original join index. The revisions include new criteria that minimize the effort in maintaining and using the join index.

Abstract: Techniques for ordering predicates in column partitioned databases for query optimization. Predicates on a single CP table within a query are organized to predicate-CP nodes with various sets of column partitions. The predicates within each predicate-CP node and the predicate-CP nodes as a whole are ordered in ascending order of cost which is determined by CPU/IO cost and predicate selectivity. The reorganized query is then executed.

Abstract: Techniques for updating join indexes are provided. A determination is made to update date criteria in a join index query statement. The join index is parsed for current date and current time criteria. The join index is revised based on the location of the current date and current time criteria as they appear in the original join index. The revisions include new criteria that minimize the effort in maintaining and using the join index.