Video compression for missile terminal guidance

Details Video compression for missile terminal guidance Video compression for missile terminal guidance

1996-12-19

1998-07-21

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Remote control

382238, F41G 730

Patent

active

057824290

ABSTRACT:
A method and apparatus for improving aim point accuracy in a programmable flight control missile includes a communication system for receiving at least one frame of imagery in a vision system mounted in a missile, predicting a subsequent frame content based on the content of the previous frame as a function of missile path height, missile velocity, and frame rate, and creating a residual image by determining the difference between a predicted subsequent frame content and actually received frame content. In the preferred embodiment, the residual image can be transferred at a high bit rate through a communication system into a controller at which location correction data can be generated and delivered to the communication system to the missile in flight. Preferably, the predicted subsequent video frame and the sensed subsequent frame content are centrally aligned before creating a residual image. Preferably, a small, high entropy block of pixels is considered to determine an x or y vector for the point of best match, and the residual image is selectively quantized and entropy coded for transmission.

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