1. A vision enhancement apparatus for a vision-impaired user, comprising: a high resolution video camera on the vision-impaired user for filming a scene in front of the vision-impaired user; a video display viewable by the vision-impaired user; and an image processor for processing high resolution video data from the video camera and displaying the resulting images on the video display, the processor automatically detecting one or more objects and human heads in the displayed images of the scene, the processor processing the images to identify human heads and causing an alert to the user of newly identified human heads the processor receiving a signal indicative of the vision-impaired user selecting an object or a head from the one or more objects or human heads in the displayed images, the processor automatically detecting and tracking the user selected human head, and automatically modifying the video data, by displaying the selected head as a separate video tile within the scene, the separate video tile located in a part of the displayed images that is more visible to the vision-impaired user.