Deteção e reconhecimento de faces em tempo real
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Deteção e reconhecimento de faces em tempo real

Deteção e reconhecimento de faces em tempo real


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International Edition


About the Book

A segurança e a vigilância são os dois aspectos mais importantes da vida quotidiana do ser humano. Neste projeto, propõe-se que o sistema de deteção e reconhecimento de rostos seja capaz de processar imagens muito rapidamente a 15 ou 20 fotogramas/segundo com 544 x 288, 640 x 480 ou qualquer outra resolução da webcam C270HD Logitech, obtendo ao mesmo tempo uma taxa máxima de deteção verdadeira e uma taxa muito baixa de falsos positivos. No nosso sistema de implementação, seguimos três aspectos que são importantes. O primeiro é o algoritmo de Viola e Jones para a deteção de rostos, o segundo é o algoritmo de análise de componentes principais para a extração de características faciais e o último é a base de dados criada por nós. Recolhemos um total de 80 imagens na base de dados com um tamanho de pixel (resolução) de 182 x 182. Cada um dos 8 sujeitos tem 10 imagens com diferentes aspectos, como iluminação, ângulos da cabeça, obstáculos, etc. A técnica de medição da distância euclidiana é utilizada para obter uma correspondência excelente entre a imagem de entrada e a imagem da base de dados. A distância mínima é a máxima e a correspondência é a máxima. O sistema tem uma precisão de classificação global de 87,5%, com uma falsa aceitação de 91,6667% e uma falsa rejeição de 87,5%.


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Product Details
  • ISBN-13: 9786206920724
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 159 gr
  • ISBN-10: 6206920720
  • Publisher Date: 07 Dec 2023
  • Height: 229 mm
  • No of Pages: 64
  • Spine Width: 4 mm
  • Width: 152 mm


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