Keywords:Fingertip Blob detection; Multi-touch surface;FTIR;TUIO protocol; Object recognition; Computer Vision
Multi-touch surface computing is the term for the use of specialized computer in which, instead of keyboard &
mouse, the user interacts directly with a touch sensitive screen. Multi-touch system is based on touch technology that
utilizes touch sensing as an input. It exists in our daily life such as on smart phones or different types of portable devices.
However, current touch systems suffer from many limitations. Natural User Interface community has proposed numerous
methodologies to implement surface computers based on imaging touch-screens. In this paper we elucidate a blob
detection algorithm for touch sensing. The algorithm has been implemented using Community Core Vision.