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 filling in points between the transformed points to provide a complete display of the terrain in perspective.

대표청구항 ▼

A system for generating a perspective display of terrain over which a vehicle is moving, comprising: a scene memory for storing 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

A system for generating a perspective display of terrain over which a vehicle is moving, comprising: a scene memory for storing 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, signal supplying means for 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; read-out control means, responsive to the signals from said signal supplying means, for reading elevation data for respective ones of said elevation points out of said scene memory through generation of address signals and the application of said address signals to said scene memory; perspective transform means responsive to the signals from said signal supplying means for transforming the address of each point read out of said scene memory from the address of that point in the scene memory to the address of a respective pixel position in said perspective display; display memory means for storing the elevation data read out of said scene memory in a matrix of memory positions forming storage locations corresponding to said transformed addresses; and display means for displaying the elevation data stored in said display memory means to produce said perspective display.