Lexicographic Bit Allocation for MPEG Video

Lexicographic Bit Allocation for MPEG Video

We consider the problem of allocating bits among pictures in an MPEG video coder to equalize the visual quality of the coded pictures, while meeting bu er and channel constraints imposed by the MPEG Video Bu ering Veri er. We address this problem within a framework that consists of three components: 1) a bit production model for the input pictures, 2) a set of bit-rate constraints imposed by th...

Perceptual bit allocation for MPEG-2 CBR video coding

Optimal Bit Allocation for MPEG-4 Video Coding

In this paper, we propose an optimal bit allocation scheme for MPEG-4 video coding. In the proposed scheme, we assign more bits to I-frames and some selected P-frames. In order to decide optimal target bits for each intra frame, we need to calculate spatial complexity of the intra frame. We also define an absolute temporal correlation factor to measure temporal correlation between successive fr...

Bandwidth Allocation and Analysis of VBR MPEG Video Bit Streams

This paper presents the benefits and challenges in the encoding and delivery of variable bitrate (VBR) MPEG video. The network resources required to transmit stored variable rate MPEG can be reduced by properly analyzing and smoothing the video stream before transmission. A scheduling technique is presented which selects a traffic contract for a pre-encoded MPEG video stream with the criteria o...

Bit allocation for dependent quantization with applications to multiresolution and MPEG video coders

We address the problem of efficient bit allocation in a dependent coding environment. While optimal bit allocation for independently coded signal blocks has been studied in the literature, we extend these techniques to the more general temporally and spatially dependent coding scenarios. Of particular interest are the topical MPEG video coder and multiresolution coders. Our approach uses an ope...