How LiDAR Creates Invisible Multi-Touch Walls in Mid-Air

Introduction: The Evolution of Touch Interaction In the past, interaction meant physical contact — from tapping smartphone screens to touching digital kiosks. But as technology advances, the boundaries of “touch” are being redefined.Today, LiDAR (Light Detection and Ranging) technology makes it possible to interact with invisible walls of light — allowing users to control digital…

Gesture-Based Interactive Projection vs LiDAR Large Screen Interaction: Exploring the Future of Human-Machine Interfaces

I. Technical Principles 1. Gesture-Based Interactive Projection Gesture-based interactive projection technology combines depth cameras and projectors, recognizing user gestures and movements and mapping them onto a virtual interactive interface, enabling contactless control. It involves computer vision techniques such as visual detection, image processing, and 3D reconstruction. 2. LiDAR Large Screen Interaction LiDAR large screen interaction…