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Segmentação de vídeo em tempo real

Authors: Varela, Luís Miguel;

Segmentação de vídeo em tempo real

Abstract

A segmentação temporal de vídeo é o processo de automaticamente detetar transições entre unidades estruturais de um vídeo (shots, cenas ou histórias). É um problema que tem atraído muita atenção por parte da comunidade cientifica pois é uma fase essencial de qualquer ferramenta de análise de vídeo. Este trabalho descreve algoritmos de segmentação de vídeos de programas noticiosos por shots e por histórias desenvolvidos no âmbito no Mestrado em Engenharia Eletrotécnica, Ramo de Eletrónica e de Computadores. O Algoritmo de Segmentação por Shots consiste numa métrica calculada a partir da deteção de contornos e num limiar adaptativo. Por outro lado, o Algoritmo de Segmentação por Histórias é baseado na deteção de pivôs através da análise de histogramas do vestuário dos mesmos.

Country
Portugal
Keywords

Processamento de vídeo, Programas noticiosos, Segmentação por shots, MEEC, Segmentação por histórias

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green