Digital Image Processing allows you to apply powerful transform domain techniques to your data. Transform methods are typically used in filtering, compression, and image texture analysis. Transform coding compresses image data by representing the original signal with a small number of transform ...
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i.e., the coding tree. The CTB size may range from 8×8 to 64×64 luma samples, but typically 64×64 is used. Each CTB can be further split into smaller square blocks called coding blocks (CBs). After the CTB is split recursively into...
Inthiscorrespondence,weproposetheimprovedDCTtransform codingtechniquesthatretaintheadvantagesofblock-basedcoding anddiminishthevisibilityofblockingeffectsbyexploitingandallevi- ating interblock correlation. To iniiiate the problem, the conventional transform coder, JPEG, is briefly discussed in Section II. In Sec...
Transform coding is commonly used in image processing algorithms to provide high compression ratios, often at the expense of processing time and simplicity of the system. We have recently proposed a pixel value prediction scheme in order to exploit adjacent pixel correlation, providing a low-complexit...
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An image coding system which can implement an optimal bit ... H Katata,Y Noguchi,H Akagi - US 被引量: 195发表: 1994年 High Quality Digital Audio Encoding with 3.0 Bits/Sample Using Adaptive Transform Coding A new method for coding high quality audio signals with a very low bit-rate is...
The images to be considered in this section are confined to scalar “mass-thickness contrast” images (see section 4.2 in Chapter 4). We decided to consider transform coding, generally based on the coding scheme proposed by Chen and Smith (1977), where a reversible linear transform is ...
1. A transform coding system for digital signals which performs a four-element discrete cosine transform, comprising: means for approximating the four-element discrete cosine transform with an integer linear transform represented by a matrix of ##EQU21## and means for performing the four-element di...