Principles of online projected image measurement technology

On-line projected image measurement technology captures the projected image of the object being measured in real time by means of a high-resolution camera or sensor, and combines it with image processing algorithms (e.g. edge detection, feature matching, 3D reconstruction) to realize non-contact accurate measurement of size, shape or position. The core principles include:

1. Optical projection: projecting a specific pattern onto the surface of an object using lasers, LEDs, or structured light; 

2. Image acquisition: synchronized recording of the deformed projection pattern by a high-speed camera; 

3. Algorithmic processing: calculating the measured parameters by triangulation, phase analysis, or deep learning models.

On-line projected image measurement features

1. Instant Measurement: No need for physical contact or complex fixtures, the measurement can be triggered by placing the object, which significantly shortens the inspection cycle;

2. High Accuracy: Sub-pixel image processing technology supports micron or even nanometer accuracy;

3. Multi-scene Adaptation: Applicable to flat, curved, transparent or reflective materials, supporting dynamic or static measurement;

4. Real-time Feedback: Data is synchronously displayed and can be integrated into the production system, realizing closed-loop control of quality. Closed-loop control.

On-line projected image measurement applications

(1) Precision manufacturing: In precision parts processing, real-time monitoring of dimensional accuracy to ensure product quality.

(2) Quality control: rapid inspection of finished products on the production line, timely detection of problems and reduction of scrap rate.

(3) Automation Integration: Integrate into automated production line to realize precise assembly guided by robots.