## 摘要

In this paper, a novel variable-rate vector quantizer (VQ) design algorithm using fuzzy clustering technique is presented. The algorithm, termed fuzzy entropy-constrained VQ (FECVQ) design algorithm, has a better rate-distortion performance than that of the usual entropy-constrained VQ (ECVQ) algorithm for variable-rate VQ design. When performing the fuzzy clustering, the FECVQ algorithm considers both the usual squared-distance measure, and the length of channel index associated with each codeword so that the average rate of the VQ can be controlled. In addition, the membership function for achieving the optimal clustering for the design of FECVQ are derived. Simulation results demonstrate that the FECVQ can be an effective alternative for the design of variable-rate VQs.

原文 | 英語 |
---|---|

頁（從 - 到） | 1109-1116 |

頁數 | 8 |

期刊 | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |

卷 | E82-A |

發行號 | 6 |

出版狀態 | 已發佈 - 1999 |

對外發佈 | 是 |

## ASJC Scopus subject areas

- 訊號處理
- 電腦繪圖與電腦輔助設計
- 電氣與電子工程
- 應用數學