Realtime wavelet video coder based on reduced memory accessing

• Published in: Proceedings of the 2001 Asia and South Pacific Design Automation Conference pp. 15 - 16
• Main Authors: Omaki, Roberto Y., Dong, Yu, Miki, Morgan H., Furuie, Makoto, Taki, Daisuke, Tarui, Masaya, Fujita, Gen, Onoye, Takao, Shirakawa, Isao
• Format: Conference Proceeding
• Language: English
• Published: New York, NY, USA ACM 30.01.2001
• Series: ACM Conferences
• Subjects: Applied computing > Physical sciences and engineering > Electronics; Computing methodologies > Artificial intelligence > Computer vision > Computer vision problems > Video segmentation; Computing methodologies > Artificial intelligence > Computer vision > Computer vision tasks > Video summarization; Computing methodologies > Artificial intelligence > Computer vision > Image and video acquisition; Hardware > Robustness; Hardware > Very large scale integration design; Information systems > Data management systems > Data structures > Data layout > Data compression
• ISBN: 0780366344; 9780780366343
• DOI: 10.1145/370155.370211

In this paper, the VLSI implementation of a real-time EZW video coder is presented. The proposed architecture adopts a modified 2-D DWT subband decomposition scheme, with the purpose of reducing the transposition memory requirements of 2-D DWT. In addition, through the use of a parallelized partial zerotree EZW scheme, temporary buffer requirements between the DWT and EZW modules are also reduced. The video encoder is integrated in a 0.35 um 3LM chip by using 341 K transistors on a 4.93 x 4.93 mm2 die.