The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Devido ao crescente número de câmeras de segurança, é fundamental estabelecer um sistema que proteja a privacidade dos objetos nas imagens gravadas. Para tanto, propomos uma estrutura de processamento de imagens e ocultação de dados para monitoramento de segurança e proteção de privacidade. Primeiro, declaramos os requisitos dos sistemas de monitorização propostos e sugerimos uma possível implementação que satisfaça esses requisitos. O conceito subjacente ao nosso enquadramento proposto é o seguinte: (1) nas imagens gravadas, os objectos cuja privacidade deveria ser protegida são deteriorados pelo processamento adequado da imagem; (2) os objetos originais são criptografados e marcados com marca d'água na imagem de saída, que é codificada usando um padrão de compactação de imagem; (3) o processamento em tempo real é realizado de forma que nenhum quadro futuro seja necessário para gerar o fluxo de bits de saída. Deve-se notar que neste quadro qualquer pessoa pode observar a imagem decodificada que inclui os objetos deteriorados, irreconhecíveis ou invisíveis. Por outro lado, para investigação criminal, este sistema permite que um número limitado de utilizadores observe os objectos originais através da utilização de um visualizador especial que descodifica e descodifica os objectos com marca de água com uma palavra-passe de descodificação. Além disso, o visualizador especial permite selecionar os objetos a serem decodificados e exibidos. Fornecemos um exemplo de implementação, resultados experimentais e avaliações de desempenho para apoiar a estrutura proposta.
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Kenichi YABUTA, Hitoshi KITAZAWA, Toshihisa TANAKA, "Privacy Protection by Masking Moving Objects for Security Cameras" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 3, pp. 919-927, March 2009, doi: 10.1587/transfun.E92.A.919.
Abstract: Because of an increasing number of security cameras, it is crucial to establish a system that protects the privacy of objects in the recorded images. To this end, we propose a framework of image processing and data hiding for security monitoring and privacy protection. First, we state the requirements of the proposed monitoring systems and suggest possible implementation that satisfies those requirements. The underlying concept of our proposed framework is as follows: (1) in the recorded images, the objects whose privacy should be protected are deteriorated by appropriate image processing; (2) the original objects are encrypted and watermarked into the output image, which is encoded using an image compression standard; (3) real-time processing is performed such that no future frame is required to generate on output bitstream. It should be noted that in this framework, anyone can observe the decoded image that includes the deteriorated objects that are unrecognizable or invisible. On the other hand, for crime investigation, this system allows a limited number of users to observe the original objects by using a special viewer that decrypts and decodes the watermarked objects with a decoding password. Moreover, the special viewer allows us to select the objects to be decoded and displayed. We provide an implementation example, experimental results, and performance evaluations to support our proposed framework.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.919/_p
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@ARTICLE{e92-a_3_919,
author={Kenichi YABUTA, Hitoshi KITAZAWA, Toshihisa TANAKA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Privacy Protection by Masking Moving Objects for Security Cameras},
year={2009},
volume={E92-A},
number={3},
pages={919-927},
abstract={Because of an increasing number of security cameras, it is crucial to establish a system that protects the privacy of objects in the recorded images. To this end, we propose a framework of image processing and data hiding for security monitoring and privacy protection. First, we state the requirements of the proposed monitoring systems and suggest possible implementation that satisfies those requirements. The underlying concept of our proposed framework is as follows: (1) in the recorded images, the objects whose privacy should be protected are deteriorated by appropriate image processing; (2) the original objects are encrypted and watermarked into the output image, which is encoded using an image compression standard; (3) real-time processing is performed such that no future frame is required to generate on output bitstream. It should be noted that in this framework, anyone can observe the decoded image that includes the deteriorated objects that are unrecognizable or invisible. On the other hand, for crime investigation, this system allows a limited number of users to observe the original objects by using a special viewer that decrypts and decodes the watermarked objects with a decoding password. Moreover, the special viewer allows us to select the objects to be decoded and displayed. We provide an implementation example, experimental results, and performance evaluations to support our proposed framework.},
keywords={},
doi={10.1587/transfun.E92.A.919},
ISSN={1745-1337},
month={March},}
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TY - JOUR
TI - Privacy Protection by Masking Moving Objects for Security Cameras
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 919
EP - 927
AU - Kenichi YABUTA
AU - Hitoshi KITAZAWA
AU - Toshihisa TANAKA
PY - 2009
DO - 10.1587/transfun.E92.A.919
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2009
AB - Because of an increasing number of security cameras, it is crucial to establish a system that protects the privacy of objects in the recorded images. To this end, we propose a framework of image processing and data hiding for security monitoring and privacy protection. First, we state the requirements of the proposed monitoring systems and suggest possible implementation that satisfies those requirements. The underlying concept of our proposed framework is as follows: (1) in the recorded images, the objects whose privacy should be protected are deteriorated by appropriate image processing; (2) the original objects are encrypted and watermarked into the output image, which is encoded using an image compression standard; (3) real-time processing is performed such that no future frame is required to generate on output bitstream. It should be noted that in this framework, anyone can observe the decoded image that includes the deteriorated objects that are unrecognizable or invisible. On the other hand, for crime investigation, this system allows a limited number of users to observe the original objects by using a special viewer that decrypts and decodes the watermarked objects with a decoding password. Moreover, the special viewer allows us to select the objects to be decoded and displayed. We provide an implementation example, experimental results, and performance evaluations to support our proposed framework.
ER -