Lag Detection of Digital Ghost Images Based on Cepstral Analysis (第3回International Workshop on Advanced Image Technology(IWAIT2000)〔英文〕)

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概要

• 論文の詳細を見る

• In this paper, we deal with the lag detection of artificial ghost images based on the cepstral technique in order to apply the ghost images to information hiding(digital watermarking). First we express the phenomenon of TV ghost in terms of a mathematical model and explain a procedure of producing a composite image which consists of original and ghost components. Secondly we describe the definition of power cepstrum and formulate the cepstrum of the composite image. After that, we introduce a cepstral difference between composite and original images and discuss some properties of the cepstral difference. Furthermore we consider the role of an exponential window function in the cepstral analysis of composite images. The computer simulated results for some test images show that the lag of ghost component in each image can be detected effectively by the cepstral difference even when the ghost component appears slightly.

• 一般社団法人電子情報通信学会の論文
• 2001-02-01

著者

• Sakata Shojiro

  Faculty Of Electro-communications The University Of Electro-communications

• KODA Hiromu

  Faculty of Electro-Communications The University of Electro-Communications

• KUBO Mayumi

  Faculty of Electro-Communications The University of Electro-Communications

関連論文

• Cepstral Analysis of Invisible Ghost Images for Information Hiding
• Lag Detection of Digital Ghost Images Based on Cepstral Analysis (マルチメディア情報処理,映像表現,ネットワーク映像メディア,画像情報システム第3回International Workshop on Advanced Image Technology(IWAIT2001))
• A New Method of Measuring the Blocking Effects of Images Based on Cepstral Information
• Lag Detection of Digital Ghost Images Based on Cepstral Analysis (第3回International Workshop on Advanced Image Technology(IWAIT2000)〔英文〕)

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