Dynamic Bit Allocation for Multiple Video Object Coding
IEEE Transactions on Multimedia
MPEG-4 rate control for multiple video objects
IEEE Transactions on Circuits and Systems for Video Technology
Rate control and bit allocation for MPEG-4
IEEE Transactions on Circuits and Systems for Video Technology
Scalable rate control for MPEG-4 video
IEEE Transactions on Circuits and Systems for Video Technology
A unified architecture for real-time video-coding systems
IEEE Transactions on Circuits and Systems for Video Technology
A robust and adaptive rate control algorithm for object-based video coding
IEEE Transactions on Circuits and Systems for Video Technology
Asynchronous rate control for multi-object videos
IEEE Transactions on Circuits and Systems for Video Technology
Hi-index | 0.00 |
This paper proposes an improved rate control algorithm for jointly encoding multiple arbitrarily shaped video objects in the context of low-delay MPEG-4 compliant video coding. The algorithm provides adequate mechanisms for dealing with deviations between the ideal and the actual behavior of video scene encoders, notably: 1) compensation mechanisms (e.g., rate control decisions) that are able to track these deviations and compensate them to allow a stable and efficient operation of the encoder, and 2) adaptation mechanisms (e.g., estimation of model parameters) that are able to instantaneously represent the actual behavior of the encoder and its rate controller. The proposed solution efficiently allocates the available resources, i.e., target bit rate and bitstream buffer space, aiming at maximizing the average scene quality and minimizing quality fluctuations along time and among the various video objects. The results show that this solution outperforms the usual reference solutions, notably those specified in the rate control informative annex of the MPEG-4 visual standard.