ALEXANDRIA, Va., April 2 -- United States Patent no. 12,266,205, issued on April 1, was assigned to SHOPPERTRAK RCT LLC (Chicago).

"System and method for detecting, tracking and counting human objects of interest with an improved height calculation" was invented by Zhiqian Wang (Lisle, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for evaluating height data are disclosed herein. Height values for a tracked object are obtained over a specified period of time. Clusters including at least one of the height values are generated. The cluster having the largest amount of height values is identified. A height of the tracked object is estimated from the identified cluster."

The patent was filed on ...