초록 ▼

A digital system for producing a real-time visual display in perspective of the terrain over which an aircraft is passing on the basis of compressed digital data stored on a cassette tape includes a perspective processor for transforming the addresses of points in a two-dimensional data pattern to t

A digital system for producing a real-time visual display in perspective of the terrain over which an aircraft is passing on the basis of compressed digital data stored on a cassette tape includes a perspective processor for transforming the addresses of points in a two-dimensional data pattern to the addresses these points occupy in a three-dimensional scene and for a filing in points between the transformed points to provide a complete display of the terrain in perspective.

대표청구항 ▼

A method for generating a perspective display of terrain over which a vehicle is moving, comprising the steps of: storing, in memory, digital data representing a two-dimensional elevation terrain pattern which is addressable in relation to the coordinate position of each elevation point with respect

A method for generating a perspective display of terrain over which a vehicle is moving, comprising the steps of: storing, in memory, digital data representing a two-dimensional elevation terrain pattern which is addressable in relation to the coordinate position of each elevation point with respect to a selected geographical orientation; providing signals representing the heading angle of said vehicle with respect to said selected geographical orientation, the angle of the desired perspective display with respect to said two-dimensional elevation terrain pattern, and the elevation and current position of said vehicle with respect to said terrain; reading-out of memory, in response to said provided signals, elevation data for respective ones of said elevation points through the generation of address signals and the application of said address signals to said memory; in response to said provided signals, transforming the address of each point read out of said scene memory from the address of that point in memory to the address of a respective pixel position in said perspective display; storing the elevation data read out of said memory in a matrix of memory positions in a display memory, which form storage locations corresponding to said transformed addresses; and displaying the elevation data stored in said display memory to produce said perspective display.