Vector quantization and signal compression
Vector quantization and signal compression
High-speed closest codeword search algorithms for vector quantization
Signal Processing
Image Compression Using Fast Transformed Vector Quantization
AIPR '00 Proceedings of the 29th Applied Imagery Pattern Recognition Workshop
Tree Structured Vector Quantization with Dynamic Path Search
ICPP '99 Proceedings of the 1999 International Workshops on Parallel Processing
An Anomaly Intrusion Detection System Based on Vector Quantization
IEICE - Transactions on Information and Systems
A fast VQ codebook generation algorithm using codeword displacement
Pattern Recognition
Face detection using quantized skin color regions merging andwavelet packet analysis
IEEE Transactions on Multimedia
Lossless compression of VQ index with search-order coding
IEEE Transactions on Image Processing
Inverse error-diffusion using classified vector quantization
IEEE Transactions on Image Processing
A fast exact GLA based on code vector activity detection
IEEE Transactions on Image Processing
Hybrid LMS-MMSE inverse halftoning technique
IEEE Transactions on Image Processing
Fast Planar-Oriented Ripple Search Algorithm for Hyperspace VQ Codebook
IEEE Transactions on Image Processing
Signature recognition using vector quantization
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
Iris recognition using discrete cosine transform and Kekre's fast codebook generation algorithm
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
Image retrieval by Kekre's transform applied on each row of Walsh transformed VQ codebook
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
A comparative study of DCT and Kekre's median code book generation algorithm for face recognition
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
Coloring gray scale digital images using Kekre's fast code book generation algorithm
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
Kekre's Fast Codebook Generation algorithm for tumor detection in mammography images
Proceedings of the International Conference and Workshop on Emerging Trends in Technology
Vector quantization using global codebook technique
Proceedings of the International Conference & Workshop on Emerging Trends in Technology
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In this paper we propose partial yet efficient codebook search algorithm which uses sorting technique and uses only comparison. Our proposed algorithm does not use Euclidean distance computation and hence it is fastest as compared to other search methods ES, HOSM, DTPC. Form the results it is observed that proposed algorithm gives more MSE as compared to the exhaustive search method but with good execution speed. We also discuss codebook design methods LBG and FCG. The codebooks of different sizes 128, 256, 512 and 1024 are generated using LBG and FCG algorithm. Both the codebook generation algorithms are compared with respect to the execution speed. All the various search algorithms are implemented on the codebooks of different sizes 128, 256, 512 and 1024 obtained from LBG and FCG algorithms. From the results it is observed that FCG codebook gives better performance parameters MSE and PSNR as compared to LBG codebook and among the search algorithm proposed algorithm gives least time to encode the image with slight degradation in image quality.