منابع مشابه
Rate Distortion Bounds for Voice and Video
Numerous voice, still image, audio, and video compression standards have been developed over the last 25 years, and significant advances in the state of the art have been achieved. However, in the more than 50 years since Shannon’s seminal 1959 paper, no rate distortion bounds for voice and video have been forthcoming. In this volume, we present the first rate distortion bounds for voice and vi...
متن کاملRate-Distortion Bounds for an Epsilon-Insensitive Distortion Measure
Direct evaluation of the rate-distortion function has rarely been achieved when it is strictly greater than its Shannon lower bound. In this paper, we consider the rate-distortion function for the distortion measure defined by an ε-insensitive loss function. We first present the Shannon lower bound applicable to any source distribution with finite differential entropy. Then, focusing on the Lap...
متن کاملRate-Distortion Bounds for Kernel-Based Distortion Measures
Kernel methods have been used for turning linear learning algorithms into nonlinear ones. These nonlinear algorithms measure distances between data points by the distance in the kernel-induced feature space. In lossy data compression, the optimal tradeoff between the number of quantized points and the incurred distortion is characterized by the rate-distortion function. However, the rate-distor...
متن کاملRate-distortion optimization for compressive video sampling
The recently introduced compressed sensing (CS) framework enables low complexity video acquisition via subNyquist rate sampling. In practice, the resulting CS samples are quantized and indexed by finitely many bits (bit-depth) for transmission. In applications where the bit-budget for video transmission is constrained, ratedistortion optimization (RDO) is essential for quality video reconstruct...
متن کاملTechniques for Improved Rate - Distortion Optimized Video
We present techniques recently developed by our research group at Stanford University to improve the performance of existing algorithms for rate-distortion optimized video streaming. In rate-distortion optimized streaming, media packet transmissions are controlled in a way that gives an optimal tradeoff between the expected bit-rate that will be required for the transmissions and the expected m...
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ژورنال
عنوان ژورنال: Foundations and Trends® in Communications and Information Theory
سال: 2014
ISSN: 1567-2190,1567-2328
DOI: 10.1561/0100000061