✦ LIBER ✦

A new vector quantization for wavelet image coding

✍ Scribed by Shuitsu Matsumura; Tsuyosi Takebe

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 1010 KB
Volume: 80
Category: Article
ISSN: 1042-0967
DOI: 10.1002/(sici)1520-6440(199712)80:12<37::aid-ecjc5>3.0.co;2-p

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Noise Filtering for Subband Image Coding

Noise Filtering for Subband Image Coding Using Vector Quantization

✍ C.J. Kuo; J.H. Leu 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 463 KB

Image coding based on wavelet feature ve

Image coding based on wavelet feature vector

✍ Shinfeng D. Lin; Shih-Chieh Shie; Kuo-Yuan Lee 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 129 KB

## Abstract In this article, an efficient image coding scheme that takes advantages of feature vector in wavelet domain is proposed. First, a multi‐stage discrete wavelet transform is applied on the image. Then, the wavelet feature vectors are extracted from the wavelet‐decomposed subimages by coll

A New Side-Match Finite-State Vector Qua

A New Side-Match Finite-State Vector Quantization Using Neural Networks for Image Coding

✍ Yu-Len Huang; Ruey-Feng Chang 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 310 KB

The side-match finite-state vector quantization (SMVQ) schemes improve performance over the vector quantization by exploiting the neighboring vector correlations within the image. In this paper, we propose a neural network side-match finite-state vector quantization (NN-SMVQ) scheme that combines th

Adaptive Vector Quantization for Speech

Adaptive Vector Quantization for Speech Spectrum Coding

✍ John Leis; Sridha Sridharan 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 300 KB

We address the problem of speech compression at very low rates, with the short-term spectrum compressed to less than 20 bits per frame. Current techniques apply structured vector quantization (VQ) to the short-term synthesis filter coefficients to achieve rates of the order of 24 to 26 bits per fram

A new shape-vector quantization-based ad

A new shape-vector quantization-based adaptive predictive image coder

✍ Jian Wang; Golshah Naghdy 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 156 KB

In this paper, a new lossless image compression technique, shape-vector quantization (VQ)-based adaptive predictive coder (SAPC), is introduced. In the proposed scheme, the local shape information of the image block is obtained through shape-VQ. This information is utilized by a novel predictive cod

Content-Based Hybrid DPCM/Classified Vec

Content-Based Hybrid DPCM/Classified Vector Quantization for Coding Video Telephony Sequences

✍ Chichyang Chen; Chiun-Wen Hsu 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 286 KB

A novel hybrid DPCM/CVQ (classified vector quantization) method is proposed to encode and decode video telephony sequences. The CVQ coding method is based on the detection of human faces within a video signal. This detection will improve three aspects of video coding efficiency. First, knowledge of