Computer Vision and Human-Computer Interaction: artificial vision techniques and use cases with creating interfaces and interaction models

Here is described how Computer Vision could give improvements to Human-Computer Interaction. Starting from a brief description of computers and human beings, follows a description of computer interfaces and Computer Vision. Then there's a description of how a human being can be recognized by Computer Vision and follow some cases in which these techniques are applied. The last part is about describing Computer Vision for Human-Computer Interaction models based on the use cases