초록 ▼

A system for displaying data to produce a three-dimensional image, and interactively modifying and transforming the data and the resultant image in response to user commands comprises control circuitry, a high-speed processor linked to the control circuitry, a memory linked to the control circuitry

A system for displaying data to produce a three-dimensional image, and interactively modifying and transforming the data and the resultant image in response to user commands comprises control circuitry, a high-speed processor linked to the control circuitry, a memory linked to the control circuitry and to the high-speed processor, and a raster-based display linked to the control circuitry and to the memory. The control circuitry is programmed to transfer data from the memory to the high-speed processor, to control the high-speed processor in modifying and transforming the data in response to, and in accordance with, the user command to obtain transformed data representative of a plurality of two-dimensional rasters of pixels, to transfer the transformed data from the high-speed processor to the memory, and to control the raster-based display in displaying the transformed data.

대표청구항 ▼

A method for processing a plurality of two-dimensional arrays of input data wherein each array of input data corresponds to a plane of sample data in an object and each corresponds to the value of an attribute of the object at a particular location therein, the method for producing and displaying hi

A method for processing a plurality of two-dimensional arrays of input data wherein each array of input data corresponds to a plane of sample data in an object and each corresponds to the value of an attribute of the object at a particular location therein, the method for producing and displaying high-quality three-dimensional images of the object, and for interactively modifying and transforming the data to produce and display resultant transformed images in response to user commands comprising the steps of: (a) initializing the system comprising the substeps of receiving the arrays of input data representing the two-dimensional planes of samples of an attribute of the object; formatting the received arrays of input data to obtain image data arrays representative of the plurality of sample planes, each of said image data arrays including a plurality of image datum, each of said image datum corresponding to a different location within the object and including sample magnitude bits having a value determined by the sample of the attribute of the object at said corresponding location, and transformation control bits, and setting up look-up tables in accordance with the user commands; (b) compressing each of said image data arrays at different degrees of compression to obtain a singly compressed data array and a doubly compressed data associated with each of said image data arrays; (c) selecting detail level arrays comprising selected ones of said singly compressed data arrays or said double compressed data arrays in response to a user command to display selected corresponding image data arrays; (d) modifying the values of the transformation control bits of said selected detail level arrays in response to, and in accordance with, said user commands to obtain modified image data arrays, each of said modified image data arrays comprising a plurality of modified image datum; (e) transforming said modified image data arrays to obtain corresponding transformed data arrays, each of said transformed data arrays including a two-dimensional raster of pixel values, said step of transforming including the substeps of selecting for each modified image datum a look-up table and transforming the value of each of said modified image datum according to said selected look-up table to obtain a corresponding transformed image datum having a brightness magnitude value; (f) forming a block of control data corresponding to a different one of each of said transformed data arrays wherein each of said control blocks comprises address data necessary to locate the transformed image data array representative of a corresponding raster, synchronization data indicative of a pixel display interval to begin displaying the transformed data representative of said corresponding raster, and deflection data necessary to correct for anomalous perspective in the display of said corresponding transformed image data array; and (g) displaying a selected transformed image data array according to said corresponding block of control data.