Atribuição de Índices para QV Robusta Usando o Algoritmo Variable Neighborhood Search
DOI:
https://doi.org/10.5540/tema.2017.018.02.0197Keywords:
Quantização Vetorial Robusta, Algoritmos de Otimização, Processamento Digital de Imagens.Abstract
Este trabalho aborda o problema da Quantização Vetorial Robusta no cenário de transmissão de imagens por canal binário simétrico. É introduzida uma aplicação do algoritmo Variable Neighorhood Search (VNS) para atribuição de indices para vetores-código do dicionário. Resultados de simulações revelam que o algoritmo VNS, quando comparado ao Simulated Annealing e ao Algoritmo Genético, produz dicionários com a mesma robustez aos erros de canal, gastando, para tanto, um menor tempo de execução.References
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