IEEE Transactions on Circuits and Systems for Video Technology
A new rate control scheme using quadratic rate distortion model
IEEE Transactions on Circuits and Systems for Video Technology
Rate-distortion optimized frame type selection for MPEG encoding
IEEE Transactions on Circuits and Systems for Video Technology
Rate control in DCT video coding for low-delay communications
IEEE Transactions on Circuits and Systems for Video Technology
Scene-context-dependent reference-frame placement for MPEG video coding
IEEE Transactions on Circuits and Systems for Video Technology
Differential video coding of face and gesture events in presentation videos
Computer Vision and Image Understanding - Special issue on event detection in video
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To prevent the loss of the information embedded in the generated variable bit rate data that is transmitted over a constant bit rate channel, several methods were proposed in MPEG TMN5, H.263 TMN5, and TMN8. In these methods, the quantity of coded data is controlled by adjusting the coding parameters according to the amount of data remaining in the buffer. Because this control is based on the past coded information and does not reflect the nature of the image being coded, there is no assurance that sufficient image quality will be obtained. In this paper, we present a Scene Context Dependent coding scheme to control the generated variable bit rate data over a constant bit rate channel for non real-time video applications and show the improvements over the encoding using the TMN H263 codec. This can be considered as a method to control the bit rate in accordance with the characteristics of human visual perception using the combination of feedforward control, feed-backward control, and model-based approaches.