Core line detector of a multi purpose geometry scanner

In cognitive informatics, attention is drawn to create, model, analyze and interact with three-dimensional representation of the objects from the environment. Having a precise 3D scanner solution for an affordable price is an important step to achieve this goal. Our research group focuses on creating such a solution consisting of a scanner device and a software component. As part of the research, a cost effective active triangulation laser scanner hardware is built. Currently we focus on developing a high-precision line tracking method based on software solution instead of using expensive hardware components. More precisely, at the moment, a noise model is set to describe the noise of the imaging system, and it is to be integrated into the triangulation core engine. As the part of this research, a new and accurate algorithm is defined to find the initial point of line tracking. The paper presents an overview of the scanner environment and a detailed discussion is given on the new algorithm. Besides the details of the algorithm, measurements are also presented and a comparison is drawn between our approach and existing algorithms.