Process for smoothing the curves generated in a television scanning system
First Claim
1. A process for plotting, from a theoretical curve, a corresponding curve with smoothing on a visualization surface of a visualization module, said visualization surface being divided into pixels in a first mesh network with given pitch, by causing, through scanning, the illumination of a number of pixels whose position is determined so as to obtain the form of the theoretical curve to be plotted, this process comprising the following steps:
- previous storage of a predetermined number of patterns formed from at least two adjacent pixels disposed in the same line or in the same column, and each representing an elementary curve portion, these patterns being addressable as a function of the position in the pattern of said theoretical curve,determination, by an incremental procedure, of the set of points best following said theoretical curve in a second mesh network,determination of the closest pixels of said visualization surface to said determined points,measurement of the distance e from each of said closest pixels to said theoretical curve,determination, as a function of this distance e, of the pattern whose elementary curve portion corresponds to that of said theoretical curve to be plotted, andillumination of said pattern on said visualization surface.
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Accused Products
Abstract
A process for smoothing curves, comprising previous storage of a predetered number of patterns formed from at least two adjacent pixels disposed on the same line or in the same column, step-by-step calculation of the theoretical curve to be plotted, determination for each of the pitches of the pixel closest to the theoretical curve to be plotted, measurement of the distance e from this pixel to the theoretical curve, determination as a function of this distance e of the pattern which corresponds to the elementary position of the curve to be plotted and illumination of the pattern on a visualization surface.
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Citations
14 Claims
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1. A process for plotting, from a theoretical curve, a corresponding curve with smoothing on a visualization surface of a visualization module, said visualization surface being divided into pixels in a first mesh network with given pitch, by causing, through scanning, the illumination of a number of pixels whose position is determined so as to obtain the form of the theoretical curve to be plotted, this process comprising the following steps:
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previous storage of a predetermined number of patterns formed from at least two adjacent pixels disposed in the same line or in the same column, and each representing an elementary curve portion, these patterns being addressable as a function of the position in the pattern of said theoretical curve, determination, by an incremental procedure, of the set of points best following said theoretical curve in a second mesh network, determination of the closest pixels of said visualization surface to said determined points, measurement of the distance e from each of said closest pixels to said theoretical curve, determination, as a function of this distance e, of the pattern whose elementary curve portion corresponds to that of said theoretical curve to be plotted, and illumination of said pattern on said visualization surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification