A method to measure curved surface of line structured light three-dimension vision system;

Study on Field Calibration Method for Line Structured Light Vision Sensor;

Study on Combined Vision Measurement Based on Line Structured Light;

On-line measurement of axis of part based on technology of linear structured light;

For polynomial fitting measuring model of a linear structured light scanning probe,the extraction and compensation methods for systematic errors of the probe are presented.

A 3D shape acquisition system using linear structured light scan is introduced.

Fast and accurately extracting the centre line of light stripe of image is one of the most important problems of 3D measurement based on line-structure light.

In the report,the author makes deep research on three dimensional profile measurement using the method of line structure light.

As one of the active 3D-measurement technologies, the laser triangulation method, which is based on line structure light scanning, has been widely used in quality-control and Reverse-Engineering.

Since the structural parameters of the line-structured light visual sensor has a great impact on measurement precision of the sensor,a measuring model of line-structured light visual sensor was established based on the perspective principle and coordinate transforming theory,and a measurement error model was also deduced from the measuring model.

Imitating the mode of scene process of humans\' eyes,two CCD cameras are placed in parallel beside the line-structured-light laser according to humans\' eyes-brain imaging principle,and a parallel binocular measurement instrument using single line-structured light is established.

According to the characteristics of line-structured light,two extracting algorithms of light stripes center were proposed including two-value morphological thinning algorithm and Gaussian distribution curve fitting algorithm.