Retinally stabilized differential resolution television display

A differential resolution television apparatus for displaying images of a remote site comprising:

• a raster-scanned CRT display means having a viewing screen for displaying said images, said display means adapted for selectable raster scan operation at a first resolution level and at a second resolution level;
• eye tracking means for sensing the line of sight of an observer's eye relative to the viewing screen and generating first position signals indicative of the position of the observer's line of sight relative to the viewing screen;
• video camera means adapted for selectable raster scan sampling at said first resolution level and at said second resolution level such that a first region of the image of predetermined size is sampled at said first resolution level and the remainder of said image is sampled at said second resolution level;
• camera control means for controlling the resolution level of said camera means and the location of said first region in dependence upon said position signals from said eye tracking means, said camera control means including means for encoding video data generated by said camera means in a format wherein each field of a frame includes a first set of data representing the position of said first portion of said image, and second and third sets of data representative, respectively, of said first region of said image, and the remainder of said image, said first set of data including data representative of the position of the upper left-hand corner of said first region relative to said display;
• and
• means for transmitting video data generated by said camera means to said CRT display means, said CRT display means being further adapted to display said image at said first resolution level within said first region and at said second resolution level for the remainder of said image.

A differential resolution television apparatus for displaying images of a remote site comprising:

• a raster-scanned CRT display means having a viewing screeen for displaying said images, said display means adapted for selectable raster scan operation at a first resolution level and at a second resolution level;
• eye tracking means for sensing the line of sight of an observer's eye relative to the viewing screen and generating first position signals indicative of the position of the observer's line of sight relative to the viewing screen;
• video camera means adapted for selectable raster scan sampling at said first resolution level and at said second resolution level such that a first region of the image is sampled at said first resolution level and the remainder of said image is sampled at said second resolution level;
• camera control means for controlling the resolution level of said camera means and the location of said first region in dependence upon said position signals from said eye tracking means;
• means for transmitting video data generated by said camera means to said CRT display means, said CRT display means being further adapted to display said image at said first resolution level within said first region and at said second resolution level for the remainder of said image;
• eye position receiver means for receiving said first position signals;
• first region detector means for decoding said first position signals, said means including storing means for storing said first position signals;
• and
• field region detector means adapted to monitor the raster scan line count of said camera means and the raster line position relative to said first region.