Patent
Automatic character recognition system
TLDR
In this article, an apparatus and method for automatic character recognition is presented, which automatically locates and recognizes alphanumeric characters in a scene viewed by a raster-scan type of sensor.Abstract:
An apparatus and method for automatic character recognition is presented ch automatically locates and recognizes alphanumeric characters in a scene viewed by a raster-scan type of sensor. By this method the apparatus can search the entire scene and recognize up to seven alphanumeric characters in a bounded area of known size by the correlation technique in less than 1.5 seconds. The technique used first locates the bounded area and alphanumeric characters and then performs the recognition. Two different feature extraction methods are used to locate the characters in the scene. The recognition function is performed by correlation using an incoherent electrooptical processor.read more
Citations
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References
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Patent
Pattern recognition apparatus and method
TL;DR: In this paper, a fine search is made around the coarse location previously determined by convolving in two dimensions previously stored information against information in real time from the scene under investigation to again determine the highest correlation as a measure of the location where the best possible match can be determined.
Patent
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Haruo Yoda,Jun Motoike +1 more
TL;DR: An image data processor for recognizing the degree of variation in the object in the image by dividing an image plane into a plurality of block regions and by sequentially comparing an input image and a background image for each of the divided block regions.
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Multi-font optical character recognition apparatus
TL;DR: In this paper, a program controlled image dissector tube scans the printed information recorded on a storage medium in a first raster to provide analog information signals representative of segments of the recorded information and in a second raster, the analog signals represented of all the stored information are converted into digital form and scaled to reduce the digital character data to a predetermined scan length.
Patent
Scan control and normalization for a character recognition system
Stephen B Gray,James C Stoddard +1 more
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TL;DR: In this article, a method for pattern recognition provided with convertion means for converting a two-dimensional image carried on a picture into pattern signals, memory means for temporally storing the pattern signals from said convertion mean, and recognition means for recognizing the patterns read out from said memory means is disclosed.