This paper discusses a multi-stage matrix quantizer with a tree structure for image encoding wherein the number of searches required is a linear function of ...
A vector quantizer is a system for mapping a sequence of continuous or discrete vectors into a digital sequence suitable for communication over or storage ...
A quantization matrix is defined as a matrix used in DV encoding to quantize the AC coefficients of a segment after the DCT process.
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Quantization, involved in image processing, is a lossy compression technique achieved by compressing a range of values to a single quantum (discrete) value.
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Mar 23, 2015 · The quantization matrices are created in a way where after much experimentation, those numbers are the best that give a good SNR and gives good perceptual ...
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Aug 22, 2024 · We introduce a variant of integer matrix factorization (IMF) to develop a novel quantization-free lossy image compression method.
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Jun 29, 2022 · We investigate the generation of quantization matrices for image coding in the scenario to balance compression ratio and quality.
Jun 9, 2023 · The idea behind DCT is that any function can be represented by the summation of cosine functions. DCT is a reversible process and inherently ...
Nov 17, 2022 · Each software associates this value to a quantization table, which is a 8 × 8 matrix used to quantize the DCT coefficients of an image. We ...
May 25, 2021 · This research focuses on frequency-based lossless new encoding technique with low computation and low memory scheme.
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