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Compression of Medical Examination Data Based on Modified Gamma-Coding
Journal of The Korea Society of Computer and Information
Abbr :
JKSCI
2014, 19(2), pp.133-142
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science
2014, 19(2), pp.133-142
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science
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According to the development of medical information systems, shortened examination time perpatient could increase the number of treatments, resulting in the rapid growth of the amount ofmedical data. Studies on how to efficiently compress and store medical text data of increasingpatients are in progress. However, previous methods have the shortcoming of compressing medicaltext data as it is, resulting in low compression rate. This research tries to overcome the problem by using the gamma coding method which enables compression in bit unit. We propose a newcompression scheme which encodes the deviations between measured values and normal rangevalues. Furthermore, we suggest to use the previous value with the least deviation from themeasurement as the standard value to encode that deviation. Even though the suggested methodsare simple, they have high compression rates. Through performance evaluation, we show that thesuggested methods are more efficient than the previous methods.
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