Abstract：In structured-light vision system

the accuracy of laser stripe center position is one of the main factors that influences the system accuracy. It analyzes current situation of algorithm for detecting the Center of Structured Light Stripe

and compares advantages and disadvantages between current algorithms. We put forward a new algorithm to detect the Center of Structured Light Stripe combining gradient sharpening with barycenter method

which firstly extracts fringe using gradient sharpening

secondly gets quasi-center of Structured Light Stripe

lastly attains the Center of Structured Light Stripe with barycenter method .Experiment results indicate this algorithm can extract Center of Structured Light Stripe accurately

it is of strong anti-noise capability and its accuracy is at sub-pixel level.