Optimal Bit-Allocation for Wavelet Scalable Video Coding with User Preference
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چکیده
• Fundamentals of Wavelet-Based Scalable Video Coding : The purpose and the general concept of scalable video coding will be introduced in this section. We also give a brief comparison between the major two scalable video coding methods, which are the wavelet-based scalable video coding and H.264/SVC. In addition, we introduce the structure of wavelet-based scalable video coding in this section. A wavelet scalable video encoder consists of two steps. The first step is to decompose each GOP (group of pictures) into multiple subbands, and the second one is to perform entropy coding, which is usually implemented by (embedded zero block coding) [1]. We are going to discuss why and how these two steps achieve video compression and provide universal scalability in a theoretical style.
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تاریخ انتشار 2012