Analýza a detekce definovaných geometrických prvků z obrazového signálu

Abstract

This work deals with design and implementation of software for video signal analysis and detection of geometrical elements. The main task is to detect known geometrical elements (for example numbers). The system consists of camera which scans the picture and the development kit, which processes the image and sends it via serial port on your computer. Designed and implemented algorithms and methods of analysis used in this study can be used to detect any (predefined) of geometrical elements. Each method has been created ant tested in programming language C#. Subsequently, it was selected the most efficient and reliable detection algorithm for detection of geometrical elements. Before detection of geometric elements we need to make some adjustments of the signal. These adjustments are noise removing, binarization of the picture, skeletonization. After the image is segmented that means is separated into individual characters. These characters are converted to vertices connected by lines. Finally tracing is made. The outcome of these methods as well as incremental adjustments to an image will appear in the display element of object programming language.