Presentation 2009-12-14
Associative-Memory-Based LSI with Adaptive-Learning Capability
Akio KAWABATA, Wataru IMAFUKU, Tania ANSARI, Hans Jurgen MATTAUSCH, Tetsushi KOIDE,
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Abstract(in English) When pattern recognition is achieved by conventional techniques, processing time becomes long and it is difficult to design an LSI. In the present research, the associative memory architecture for finding the most similar data among previously stored reference data is investigated for an application involving recognition and learning. We achieve high speed, low power consumption and a small area for the recognition function by using a mixed digital-analog fully parallel associative memory. For implementing the learning function of new reference data, we propose an associative memory based learning algorithm which imitates the concept of human's short/long-term memory. We apply the proposed learning algorithm to codebook-based image compression for evaluation and analysis of its efficiency. The created codebook with the proposed learning algorithm is evaluated for capturing the learning effect quantitatively with the Peak Signal Noise Ratio (PSNR). PSNR is an index of the image quality, and it can analyze the learning parameter dependence. In addition, we apply Huffman Coding to the codebook-based image compression, and verify that the compression ratio is improved from 12.8 to 14.1.
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Keyword(in English) Associative Memory / Codebook-based Image Compression / Adaptive Learning / Huffman Coding
Paper # ICD2009-93
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Conference Date 2009/12/7(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Associative-Memory-Based LSI with Adaptive-Learning Capability
Sub Title (in English)
Keyword(1) Associative Memory
Keyword(2) Codebook-based Image Compression
Keyword(3) Adaptive Learning
Keyword(4) Huffman Coding
1st Author's Name Akio KAWABATA
1st Author's Affiliation Research Institute for Nanodevice and Bio Systems, Hiroshima University()
2nd Author's Name Wataru IMAFUKU
2nd Author's Affiliation Research Institute for Nanodevice and Bio Systems, Hiroshima University
3rd Author's Name Tania ANSARI
3rd Author's Affiliation Research Institute for Nanodevice and Bio Systems, Hiroshima University
4th Author's Name Hans Jurgen MATTAUSCH
4th Author's Affiliation Research Institute for Nanodevice and Bio Systems, Hiroshima University
5th Author's Name Tetsushi KOIDE
5th Author's Affiliation Research Institute for Nanodevice and Bio Systems, Hiroshima University
Date 2009-12-14
Paper # ICD2009-93
Volume (vol) vol.109
Number (no) 336
Page pp.pp.-
#Pages 6
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