Image analysis – Image sensing – Optical
Patent
1996-07-12
1998-10-20
Chang, Jon
Image analysis
Image sensing
Optical
382287, 382288, 382309, 235456, 235494, G06K 920, G06K 946
Patent
active
058259473
ABSTRACT:
An image pickup unit optically reads, from an information recording medium having a portion that records multimedia information including at least one of audio information, video information, and digital code data in the form of an optically readable code pattern, the code pattern. A conversion unit converts the code pattern read by the image pickup unit into code data as an image. A block extraction unit extracts a block as a predetermined data unit from the code data by processing the code data converted by the conversion unit. A reference coordinate calculation unit calculates a reference coordinate position for determining the data reading coordinate position in the block by approximation using an Nth-degree curve passing the centers of a plurality of dots arranged at predetermined relative positions on the image upon extraction of the block as the predetermined unit of data from the code data by the block extraction unit.
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Sasaki Hiroshi
Tsuruoka Takao
Chang Jon
Olympus Optical Co,. Ltd.
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