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OPTICAL INFORMATION PROCESSING APPARATUS, METHOD OF CALCULATING PROBABILITY FOR OPTICAL INFORMATION AND METHOD OF DECODING OPTICAL INFORMATION USING THE SAME
OPTICAL INFORMATION PROCESSING APPARATUS, METHOD OF CALCULATING PROBABILITY FOR OPTICAL INFORMATION AND METHOD OF DECODING OPTICAL INFORMATION USING THE SAME
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机译:光学信息处理设备,计算光学信息概率的方法以及使用相同方法解码光学信息的方法
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摘要
An optical information processing apparatus, a method for calculating a probability value for decoding optical information by using the same, and a method for decoding the optical information are provided to divide a data page of reproduced optical information into a plurality of local blocks and correct an error of optical information by using probability values for the respective local blocks. A light source(110) irradiates a beam on a storing medium. An optical information detector(160) detects optical information reproduced from the storing medium. A probability value calculating unit(170) divides the optical information detected in the optical information detector(160) into a plurality of local blocks, and calculates probability values for pixels of the local blocks. A data decoding unit(200) decodes optical information of the local blocks by using the probability values calculated in the probability value calculating unit(170).
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