In one aspect, a method comprises: processing data using an encoder neural network to generate a latent representation of the data; processing the latent representation of the data using a hyper-encoder neural network to generate a latent representation of an entropy model; generating an entropy ...
2.4. Entropy Coded Pixel Differences Van Hook suggests compression schemes based on entropy coding of pixel differences =-=[Hoo06]-=-. First, he computes ... TJV Hook - US 被引量: 59发表: 2003年 TPC data compression In this paper, we present several compression schemes, such as entropy ...
Using audio file compression as an example, mp3 is a lossy compression, while FLAC is lossless compression. We will not study any concrete algorithm, but we will see the general laws governing data compression mechanisms. 12.1. Entropy and Coding In coding, each symbol of the message is ...
In particular, if we define a “relevant” random variable (conditioned with respect to some auxiliary data ) to be a random variable for which or equivalently (by the triangle inequality) then we have the useful lower bound whenever and are relevant conditioning on respectively. This is ...
Based on the problem of quantum data compression in a lossless way, we present here an operational interpretation for the family of quantum Rényi entropies. In order to do this, we appeal to a very general quantum encoding scheme that satisfies a quantu
An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with “wasted” or “extra” information removed. In other words, entropy encoding removes information that was not necessary in the first place to accurately encode the message. A high degre...
Therefore, in this example, knowledge of the source output at a specific time completely specifies the corresponding reconstruction. ⧫ Show moreView chapter Chapter Mathematical Preliminaries for Lossy Coding Introduction to Data Compression (Fourth Edition) Book2012, Introduction to Data Compression ...
An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with “wasted” or “extra” information removed. In other words, entropy encoding removes information that was not necessary in the first place to accurately encode the message. A high degre...
Marpe et al., “Entropy Coding in Video Compression Using Probability Interval Partitioning,” 28th Picture Coding Symposium, PCS2010, Dec. 8-10, 2010, pp. 66-69. Marpe et al., “Entropy Encoding and Decoding Scheme Using VLC Coding and Pipe or Entropy Coding for High Compression Efficiency...
data is lost, lossy compression is normally used only for data, such as sound or graphics (still or motion), that can be perceived reasonably accurately despite the loss of information. Lossless compression generally results in lower compression ratios but can reconstitute the original data in its...