IEEE Signal Processing Letters · 2004 · 14 citations · 7 references
ComputingCybersecurityComputer GraphicsDigital ImagingReal-time SystemsData CompressionDigital Image ProcessingDigital Signal ProcessingDistortion AnalysisImage CompressionImage ProcessingEqual Error RateMean Squared ErrorRate-distortion CodingRate-distortion FunctionRate-distortion TradeoffTransformUnequal Error ProtectionVideo Compression
In this letter, a novel and computationally inexpensive analytic mean square error (mse) distortion rate (D-R) estimator for SPIHT which generates a nearly exact D-R function for the two- and three-dimensional SPIHT algorithm is presented. Utilizing our D-R estimate, we employ unequal error protection and equal error protection in order to minimize the end to end MSE distortion of the transform domain. A major contribution of this letter is the simple and extremely accurate analytical D-R model which potentially improves upon pre-existing methodologies and applications that rely on an accurate and computationally inexpensive D-R estimate.
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