Patent ID: 6219460
Filing Date: 2001-04-17
Classification: G06K

Abstract:
An information reproducing system comprising:code reading means for reading a dot code from an information recording medium on which multimedia information including at least any one of audio information, image information and digital code data has been recorded in the form of a dot code which can optically be read;binarizing means for generating binarized data from an image signal corresponding to an image of the dot code read by said code reading means; andinformation reproducing means for restoring binarized data generated by said binarizing means to the multimedia information and to reproduce the multimedia information, whereinsaid binarizing means includes:image dividing means for dividing the screen image of the dot code into a plurality of regions;characteristic value extracting means for extracting a characteristic value for binarization in each of said plurality of regions;threshold value calculating means for calculating a threshold value for binarization in accordance with the characteristic value extracted by said characteristicvalue extracting means; andsaid binarizing means binarizing the image signal corresponding to the image of the dot code based on the threshold value calculated by said threshold value calculating means.