Technical Report CIS-2009-12

TR#:CIS-2009-12
Class:CIS
Title: Scalable resource allocation for H.264 video encoder: Frame-level controller
Authors: Michael M. Bronstein
PDFCIS-2009-12.pdf
Abstract: Tradeoff between different resources (bitrate, computational time, etc.) and compression quality, often referred to as rate-distortion optimization (RDO), is a key problem in video coding. With a little exaggeration, it can be claimed that what distinguishes between a good and a bad codec is how optimally it finds such a tradeoff. This is the second part of our paper presenting an algorithm for resource allocation in a scalable H.264 video codec. Here, we discuss a frame-level resource allocation and control scheme, capable of shaping the PSNR in the encoded frame. Coupled with a visual perception model, it allows to achieve perceptually-optimal quality within given resource constraints. The proposed region-wise resource allocation allows for scalable complexity.

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