2D AI vs 3D ToF: A Comparison of Passenger Flow Counting Solutions, and Why the Economical 2D Solution Becomes the Cost-Effective Choice
This article systematically compares the applicability of 2D AI economy passenger flow cameras and 3D ToF solutions in retail scenarios from four dimensions: underlying principles, installation and construction, functional accuracy, and cost budget. The conclusion is that for the vast majority of stores, supermarkets, and exhibition halls, the 2D AI solution meets core statistical needs such as entry/exit passenger flow and zone heat mapping, while offering lower hardware costs and less impact on interior decoration. The article provides a selection comparison table for door width and focal length to help operators make rational decisions based on their own scenarios.