A sensor array and computing apparatus are located on the human body while maintaining said sensors and apparatus within a proximity zone of the body such that the mobility and flexibility of the body are not deleteriously affected by the presence of the apparatus. Such a target application can, as examples, be a software program running on a computer or a workstation, an image forming device, an appliance, etc. In one arrangement, the video segment can contain at least one introductory predictive picture, and the converting step can further include selectively decoding a predetermined number of the introductory predictive pictures to obtain a properly decoded predictive picture. The first object is therefore deflected by the deflector and prevented from impacting second object.