Results 21 to 30 of about 30,626 (312)

Research on fractal image compression hybrid algorithm based on convolutional neural network and gene expression programming

open access: yesJournal of Algorithms & Computational Technology, 2019
Regarding the problems of insufficient image segmentation intelligence, low compression rate, slow speed for global searching to find the optimal fractal image compression encoding, and bad decoding effect, this article proposes the fractal image ...
Wenjing Li   +3 more
doaj   +1 more source

FRACTAL COMPRESSION TECHNIQUE FOR COLOR IMAGES USING VARIABLE BLOCK

open access: yesICTACT Journal on Image and Video Processing, 2017
The main intention of Fractal Image Compression is to reduce the size of image and maintain good level of their reconstructed image. A major issue in Fractal Image Compression is decrease in image quality, compression ratio and PSNR.
Nisar Ahmed, Syed Abdul Sattar
doaj   +1 more source

Region-based fractal image compression [PDF]

open access: yesIEEE Transactions on Image Processing, 2000
A fractal coder partitions an image into blocks that are coded via self-references to other parts of the image itself. We present a fractal coder that derives highly image-adaptive partitions and corresponding fractal codes in a time-efficient manner using a region-merging approach.
Hartenstein, H., Ruhl, M., Saupe, D.
openaire   +3 more sources

An Experimental Study on the Microstructure Evolution of Soil under Lateral Consolidation Compression

open access: yesApplied Sciences, 2022
Based on the lateral consolidation compression experiment of remolded soil simulating the effects of pile driving and soil squeezing, in this paper, the microstructures of soil with different degrees of lateral consolidation were investigated by a ...
Xiao Zhang   +5 more
doaj   +1 more source

On the micro mechanics of one-dimensional normal compression [PDF]

open access: yes, 2015
Discrete-element modelling has been used to investigate the micro mechanics of one-dimensional compression. One-dimensional compression is modelled in three dimensions using an oedometer and a large number of particles, and without the use of ...
Ashby M. F.   +6 more
core   +2 more sources

From colloidal dispersions to colloidal pastesthrough solid–liquid separation processes [PDF]

open access: yes, 2005
Solid–liquid separation is an operation that starts with a dispersion of solid particles in a liquid and removes some of the liquid from the particles, producing a concentrated solid paste and a clean liquid phase.
Botet, Robert   +6 more
core   +6 more sources

Evolutionary fractal image compression [PDF]

open access: yesProceedings of 3rd IEEE International Conference on Image Processing, 2002
This paper introduces evolutionary computing to fractal image compression. In fractal image compression a partitioning of the image into ranges is required. We propose to use evolutionary computing to find good partitionings. Here ranges are connected sets of small square image blocks.
D. Saupe, M. Ruhl
openaire   +1 more source

Simulation experimental investigations on particle breakage mechanism and fractal characteristics of mixed size gangue backfill materials

open access: yesJournal of Materials Research and Technology, 2023
The compression deformation and particle breakage of gangue filling materials are significantly affected by different particle size gradations. To study the mechanical behavior of mixed size gangue backfilling materials in-depth, a physical compression ...
Dongtao Wu   +3 more
doaj   +1 more source

How a colloidal paste flows – scaling behaviors in dispersions of aggregated particles under mechanical stress – [PDF]

open access: yes, 2008
We have developed a novel computational scheme that allows direct numerical simulation of the mechanical behavior of sticky granular matter under stress.
Botet, Robert   +4 more
core   +1 more source

Fractal Lossy Hyperspectral Image Coding Algorithm Based on Prediction

open access: yesIEEE Access, 2017
At present, a hyperspectral image has a significant advantage in the aspect of application because of its high spectral resolution. However, owing to the limit of communication capacity, a hyperspectral image must be compressed. In this paper, we develop
Shiping Zhu, Xianzi Zong
doaj   +1 more source

Home - About - Disclaimer - Privacy