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Akio Ogihara,Naoya Inoue,Motoi Iwata,Akira Shiozaki 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
The objective of this work is to reduce the length of the synchronization code which is used as synchronization signal in the audio watermarking method based on amplitude modification.
Hand Gesture Region Extraction Using Skin-Color Histogram
Akio Ogihara,Hiroshi Matsumoto,Akira Shiozaki 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
The objective of this work is to improve the precision of extracting the region of hand gesture by using the color histogram of the hand gesture region.
A Music Watermark in Consideration of Global Gain and Scalefactor in MP3 Compression
Akio Ogihara,Nobuhiko Maeda,Motoi Iwata,Akira Shiozaki 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
The objective of this work is to demonstrate a new watermarking method for audio data in consideration of MP3 (MPEG audio layer-3) compression which is usually used in personal computer, portable IC audio player, etc.
Akio Ogihara,Ryota Sawada,Motoi Iwata,Akira Shiozaki 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, we aim to improve the sound quality of the audio watermarking method using smearing transformation, which is proposed by M.Wakai et al. Since noise is caused by the signature impulse, we aim to reduce the power of the signature impulse. In our method, the signature impulse is filtered by low-pass filter, and then the filtered impulse is embedded.