Very Low Bit-Rate Video Coding by Combining H.264/AVC Standard and Empirical Wavelet Transform

Abstract

In this paper, a novel video compression approach is proposed for video coding at very low bit-rate with combination of empirical wavelet transform and H.264/AVC standard. The proposed method is used to extract low frequency components in each frame by applying the empirical wavelet transform on each video frame separately. The frames with low frequency are coded by using H.264/AVC codec and high frequency frames are coded by Huffman Coding algorithm. By applying of threshold the low coefficient values are neglected. Experiments of the proposed method show the analysis and better performances in rate distortion. When compared to direct applying of the H.264/AVC standard to all frames, the performances of the proposed method achieved at very low bit rate applications below 16kbits/s. The application of proposed technique video coding includes the video receiving and transmitting over the GSM networks of half-rate traffic channels, video-conferencing and video telephony. The performance analysis shows the efficient and reliable process than the ordinary standard of H.264.