Patent ID: 8294881

Claim:
A security sensor, comprising: at least one laser detection and ranging (LADAR) device configured for accumulation of three-dimensional image data by transmitting a plurality of laser pulses; a data processor in operative communication with the LADAR device and comprising: a plurality of quantizers configured to each respectively receive elevation values, azimuth values, or range values, based on a laser pulse transmission direction, and generate discrete coordinate values for the LADAR device; an address converter configured to convert the discrete coordinate values from the quantizers into single address values; a processing element selector configured to receive the single address values from the address converter, and to receive returned signal strength values from the LADAR device; and a plurality of processing elements each corresponding to a discrete address value and in operative communication with the processing element selector; wherein the processing element selector is configured to direct a returned signal strength value to a selected one of the plurality of processing elements such that the selected processing element is associated with a volume of space represented by the discrete coordinate values.