Two-dimensional invariant pattern recognition using a back-propagation network improved by distributed associative memory

Jau Ling Shih, Pau-Choo Chung

研究成果: Conference contribution

摘要

A system combining the BackPropagation Network (BPN) and the Distributed Associative Memory (DAM) for 2D pattern recognition is proposed. In the system, a sequence of image processes and transformations, including complex transform, Laplacian, and Fourier transform are used for invariant feature extraction. Two modified neural networks are proposed for pattern recognition: (1) the DAM combined with BPN, and (2) the BPN improved by DAM. In the DAM combined with BPN, a fine training is provided by the BPN to take the pattern variations within each class into the training procedure. Experimental results indicate that this improved DAM has higher recognition rates compared to a traditional DAM. In the BPN improved by DAM, the weights of the first layer used the memory matrix of DAM as initial values. This network is compared with the BPN. Experimental results show that this network not only has slightly higher recognition rate, but also requires less training time than a BPN. Finally, the system is also tested with noisy patterns. According to the experiments results, it is found that the system also has high recognition rate even on the noisy images.

原文English
主出版物標題Proceedings of SPIE - The International Society for Optical Engineering
發行者Society of Photo-Optical Instrumentation Engineers
頁面140-147
頁數8
版本1/-
ISBN(列印)0891418587
出版狀態Published - 1995 一月 1
事件Visual Communications and Image Processing '95 - Taipei, Taiwan
持續時間: 1995 五月 241995 五月 26

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
號碼1/-
2501
ISSN(列印)0277-786X

Other

OtherVisual Communications and Image Processing '95
城市Taipei, Taiwan
期間95-05-2495-05-26

    指紋

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

引用此

Shih, J. L., & Chung, P-C. (1995). Two-dimensional invariant pattern recognition using a back-propagation network improved by distributed associative memory. 於 Proceedings of SPIE - The International Society for Optical Engineering (1/- 編輯, 頁 140-147). (Proceedings of SPIE - The International Society for Optical Engineering; 卷 2501 , 編號 1/-). Society of Photo-Optical Instrumentation Engineers.