| abstract |
Imaging device is trained (e.g., panned, zoomed, focussed) on environmental navigation feature, such as street sign or house number, by operator input and computer control. Optional illumination in visible, infrared, ultraviolet, or other spectrum enhances (especially nighttime) imaging. Optional processing is applied to image to increase brightness, sharpness and/or size, and/or to counter positional or other distortion or error. Computer controlled motion tracking, affected by pattern recognition algorithms with optional artificial intelligence, and/or freeze frame function, and/or optical or digital image stabilization, are used to stabilize view from moving vehicle. |