Parallax correction apparatus for a head-up display
First Claim
1. Imaging apparatus for producing a video signal for display on a head-up display, comprising imaging means for providing a first video signal corresponding to an image of a field of view, and signal processing means operable to process said first video signal to derive a second video signal for display by the head-up display in which the dimension of the image in at least one direction is progressively varied to compensate at least partially for a difference between the location of the imaging means and the location of the head-up display.
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Abstract
Thermal imaging apparatus particularly but not exclusively for use on an aircraft with a head-up display is provided with signal processing means which progressively expands or compresses the image in the vertical and/or horizontal direction to compensate for parallax arising from the difference in the positions of the observer and the scanner. The adjustment is performed, in the preferred embodiment, as a function of height of the aircraft.
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Citations
8 Claims
- 1. Imaging apparatus for producing a video signal for display on a head-up display, comprising imaging means for providing a first video signal corresponding to an image of a field of view, and signal processing means operable to process said first video signal to derive a second video signal for display by the head-up display in which the dimension of the image in at least one direction is progressively varied to compensate at least partially for a difference between the location of the imaging means and the location of the head-up display.
Specification