Image-based auto-positioning brush for LCD displays

The interactive devices, which help humans to easily access the computer and video game player, become an important technology to provide interactive multimedia services and entertainments in the 21st century. Considering the cost and the effectiveness of the human machine interface (HMI) devices, in this paper, we design a low cost image-based auto-positioning brush (IA-Brush), which can automatically locate the position of the window and modify the affection of angle displacement of camera. The proposed IA-Brush based on a low cost video camera can be easily implemented for low cost liquid crystal display monitor by using image processing techniques figure with a designated background grids. Simulation results with exhibition of interactive painting games show that we can achieve a low cost and effective HMI by using a video camera only.