Although it is often noted that the process of data compression forms an illuminating metaphor for concept learning mechanisms, the computational basis of the metaphor is not usually made explicit. In this paper, an algorithm is described which implements climbing-tree inductive gener-alisation as a form of clustering process. The algorithm is correctly clas-siied as a generalised data compress...

Submarine pipeline is a key part in the development of deep sea and ultra-deep oil gas. In order to reduce ovality pipes improve their compressive strength, two-roller continuous calibration (TRCC) process by compression proposed. A springback analysis compress bending carried out, an analytical model established, which predicts after provides theoretical basis for roller shape design parameter...

metal forming processes, compared with machining ones, reduce production steps and increasemanufacturing speed in addition to saving raw material. in this paper, forming process of column ofa steering mechanism is investigated by finite element analyses and experimental tests; andoptimum die design parameters are found. forming process parameters including die opening angle,bearing length, clea...

In this work we apply reversible integer wavelet transform to lossless compression of computerized tomography projections (sinograms). Lossy image compression methods can achieve high compression ratios, but sinograms should not loose information during compression process to not affect the image reconstruction.

Image compression often leads to undesired artifacts. This paper shows an image restoration approach to correct for these artifacts by an associative memory. Investigations for modeling the coder-decoder process by a linear system are described. A compensating system consisting of a neural network based associative memory has been developed to process the degraded result after compression/decom...

In this paper we will provide a new way of images compression based on two mathematic concepts, these two concepts are Singular Value Decomposition (SVD), and Block Truncation Coding. The input image either is in JPEG format or in BMP format, and the current way suitable for both color and gray scale images. The input image will be compressed first by reducing the image matrix rank, which achie...

A new technique for denoising and compression of multispectral satellite images to remove the effect of noise on the compression process is presented. One type of multispectral images has been considered: Landsat Enhanced Thematic Mapper Plus. The discrete wavelet transform (DWT), the dual-tree DWT, and a simple Huffman coder are used in the compression process. Simulation results show that the...

In this paper an Adaptive Fractal Image Compression (AFIC) algorithm is proposed to reduce the long time of the Fractal Image Compression (FIC). AFIC worked on; minimizing the complexity and the number of matching operations by reducing both of the range and domain blocks needed in the matching process, for this purpose Zero Mean Intensity Level Fractal Image Compression based on Quadtree parti...