Fast and Memory Efficient 3D-DWT Based Video Encoding Techniques

This paper deals with the video encoding techniques using Spatial and Temporal DWT (Discrete Wavelet transform). Here we will discuss about two video encoding mechanisms and their performance at different levels of DWT. Memory is the major criteria for any video processing algorithm. So, in this paper we will focus on the efficient utilization of the system memory at increased level of spatial and temporal DWT. Out of these two mechanisms, one of the mechanism implements multi resolution analysis in temporal axis. In these mechanisms dynamic (automatic) DWT level selection and manual level selection is implemented. Here we also discuss about implementing the different DWT level in spatial and temporal domain. In this paper, Haar wavelet is taken as the reference. Keywords—Wavelet, Spatial and Temporal DWT, Dynamic level selection, multi-resolution analysis,Haar wavelet.