Apparatus and method for producing a zoomed image signal
First Claim
1. An apparatus for producing a zoomed image signal from an input image signal representing an input image, comprising:
- means for separating at least a portion of the input image signal into a plurality of block signals each including plural image data and representing a subarea of the input image represented by the input image signal;
class code producing means for producing a class code for each of selected ones of the plurality of block signals, each class code identifying predetermined image data of a zoomed image portion corresponding to the subarea of the input image represented by the block signal for which the class code is produced;
image data generating means for generating the predetermined image data in response to each class code produced by the class code producing means;
display position shifting means for assigning shifted display positions for the plural image data of the selected ones of the plurality of block signals; and
synthesizing means for synthesizing the zoomed image signal from the plural image data having shifted display positions and the predetermined image data such that the predetermined image data are assigned display positions intermediate the shifted display positions of the plural image data.
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Abstract
Apparatus and methods are provided for producing a zoomed image signal from an input image signal. The input image signal is separated into a number of block signals each representing a subarea of the input image. Class codes are produced based on the block signals. Each class code identifies predetermined image data of a zoomed image portion which corresponds to the subarea represented by the block signal on which the class code is based. The predetermined image data is generated in response to each class code. Shifted display positions are assigned for image data of the selected block signals, and the zoomed image signal is synthesized from the image data having shifted display positions and the predetermined image data such that the predetermined image data are assigned display positions intermediate the shifted display positions of the other data.
47 Citations
12 Claims
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1. An apparatus for producing a zoomed image signal from an input image signal representing an input image, comprising:
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means for separating at least a portion of the input image signal into a plurality of block signals each including plural image data and representing a subarea of the input image represented by the input image signal; class code producing means for producing a class code for each of selected ones of the plurality of block signals, each class code identifying predetermined image data of a zoomed image portion corresponding to the subarea of the input image represented by the block signal for which the class code is produced; image data generating means for generating the predetermined image data in response to each class code produced by the class code producing means; display position shifting means for assigning shifted display positions for the plural image data of the selected ones of the plurality of block signals; and synthesizing means for synthesizing the zoomed image signal from the plural image data having shifted display positions and the predetermined image data such that the predetermined image data are assigned display positions intermediate the shifted display positions of the plural image data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for producing a zoomed image signal from an input image signal representing an input image, comprising the steps of:
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separating at least a portion of the input image signal into a plurality of block signals each including plural image data and representing a subarea of the input image represented by the input image signal; producing a class code for each of selected ones of the plurality of block signals, each class code identifying predetermined image data of a zoomed image portion corresponding to the subarea of the input image represented by the block signal for which the class code is produced; generating the predetermined image data in response to each class code produced by the class code producing means; assigning shifted display positions for the plural image data of the selected ones of the plurality of block signals; and synthesizing the zoomed image signal from the plural image data having shifted display positions and the predetermined image data such that the predetermined image data are assigned display positions intermediate the shifted display positions of the plural image data. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification