Image resolution enhancement method and apparatus
AssigneeRCA Corporation
InventorKazuo Katagi
Life of this patent
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Abstract
A frame of information to be displayed in the form of a row and column matrix of display elements is created from a corresponding group of data cells stored functionally in the form of a row and column matrix where the number of rows and columns in the stored matrix is less than the number of rows and columns in the displayed matrix. The value of each display element is determined by obtaining the average of the values of the data cells with which the display elements immediately adjacent the display element, the value of which is to be determined, correspond summed with n times the value of the data cell corresponding to the display element, the value of which is to be determined, where n is an integer greater than one.
Claims10
In an apparatus for displaying, in response to digitized signals representing data cells, variable intensity display elements in a matrix of rows and columns, said signals representing data cells derived from a data image defined by a matrix of rows and columns of said data cells, each cell having a discrete value of a plurality greater than 2 of values, comprising in combination:
- means generating a first signal representing the value of a particular one of said data cells, and second signals representing respectively the values of selected ones of data cells adjacent said one particular data cell,
- means responsive to said first signal and said second signals for generating a third signal which is the average of n times the value of said one particular data cell and not greater than n-1 times the value of each of said adjacent selected data cells, where n is one of the number 2 and 3 equal to the number of said selected adjacent data cells;
- and
- display means responsive to said third signal for intensity modulating the display surface thereof at an intensity corresponding to the value of said third signal.
A method for increasing the resolution of a system for displaying images, said images being stored as a data image comprising a matrix of rows and columns of data cells, each cell being one of a fixed plurality of discrete values and each representing an area of the physical image to be displayed, comprising the steps of:
- (a) computing the averages of n times the value of each said data cell and one of each of the four combinations of the value of only one adjacent row data cell and only one adjacent column data cell and each of the four combinations of twice the value of a data cell in the same row as and adjacent each said data cell, twice the value of a data cell in the same column as and adjacent each said data cell and the value of a data cell which is in the same column as said adjacent row data cell and same row as said adjacent column data cell, where n equals the number of adjacent data cells utilized to compute the average;
- (b) partitioning each of said areas of said physical image representing each data cell into four quadrantal sections, each having an edge adjacent an area represented by an adjacent column data cell and an edge adjacent an area represented by an adjacent row data cell;
- and
- (c) displaying each of said four quadrantal sections of said areas of said physical image as a function of said average value computed with said adjacent row and column data cells representing areas of physical image adjacent respective row and column edges of said each quadrantal section.
Dependencies are inferred from the claim text.