Takizawa Kenichi, Hamaguchi Kiyoshi
Medical ICT Group, National Institute of Information and Communications Technology (NICT), 3-4 Hikarino-oka, Yokosuka, 2390847, Japan.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:3479-82. doi: 10.1109/IEMBS.2010.5627839.
This paper presents a low-complexity video encoding method applicable for wireless image transmission in capsule endoscopes. This encoding method is based on Wyner-Ziv theory, in which side information available at a transmitter is treated as side information at its receiver. Therefore complex processes in video encoding, such as estimation of the motion vector, are moved to the receiver side, which has a larger-capacity battery. As a result, the encoding process is only to decimate coded original data through channel coding. We provide a performance evaluation for a low-density parity check (LDPC) coding method in the AWGN channel.
本文提出了一种适用于胶囊内窥镜无线图像传输的低复杂度视频编码方法。该编码方法基于Wyner-Ziv理论，其中发射端可用的边信息被视为接收端的边信息。因此，视频编码中的复杂过程，如运动矢量估计，被转移到具有更大容量电池的接收端。结果，编码过程仅通过信道编码对编码后的原始数据进行抽取。我们对加性高斯白噪声（AWGN）信道中的低密度奇偶校验（LDPC）编码方法进行了性能评估。
