Results 11 to 20 of about 30,626 (312)

Influence of particle size distribution on fractal characteristics of waste rock backfill materials under compression

open access: yesJournal of Materials Research and Technology, 2022
Broken waste rock as backfill materials is filled into the underground goaf and will encounter particle breakage under the overburden pressure. The damage degree of the crushed waste rock materials directly affects the compression properties of the ...
Meng Li   +4 more
doaj   +1 more source

Digital Video Compression Using DCT-Based Iterated Function System (IFS)

open access: yesTikrit Journal of Pure Science, 2023
Large video files processing involves a huge volume of data. The codec, storage systems and network needs resource utilization, so it becomes important to minimize the used memory space and time to distribute these videos over the Internet using ...
Nevart A. Minas, Faten H. Al-Qadhee
doaj   +1 more source

Fractal image compression [PDF]

open access: yesSignal Processing: Image Communication, 1993
Abstract Image compression techniques based on fractals have been developed in the last few years and may promise better compression performance. Fractal image compression techniques are being developed due to the recognition that fractals can describe natural scenes better than shapes of traditional geometry.
  +4 more sources

Fractal Compressive Sensing

open access: yes, 2023
This paper introduces a sparse projection matrix composed of discrete (digital) periodic lines that create a pseudo-random (p.frac) sampling scheme. Our approach enables random Cartesian sampling whilst employing deterministic and one-dimensional (1D) trajectories derived from the discrete Radon transform (DRT).
Lorenzana, Marlon Bran   +4 more
openaire   +2 more sources

ECG compression with Douglas-Peucker algorithm and fractal interpolation

open access: yesMathematical Biosciences and Engineering, 2021
In this paper, we propose a new ECG compression method using the fractal technique. The proposed approaches utilize the fact that ECG signals are a fractal curve.
Hichem Guedri   +2 more
doaj   +1 more source

Study on fractal dimension of coal pillar fracture in mining section of short-distance coal seams

open access: yesMeikuang Anquan, 2021
In order to study the compression and stability of coal pillar of short-distance coal seams under downward mining, take the short-distance coal seams in Ningtiaota Coal Mine as the research object, through the edem simulation test, FLAC3D numerical ...
HAN Jinbo
doaj   +1 more source

Increasing the Speed of Fractal Image Compression Using Two-Dimensional Approximating Transformations

open access: yesЖурнал інженерних наук, 2019
Fractal image compression algorithm is known for allowing very high compression rates (the best examples – up to 1 000 times with acceptable visual quality) for real photos of natural objects, which is not possible for other lossy compression methods ...
Maydaniuk V. P.   +2 more
doaj   +1 more source

Fractals: An Eclectic Survey, Part II

open access: yesFractal and Fractional, 2022
Fractals are geometric shapes and patterns that can describe the roughness (or irregularity) present in almost every object in nature. Many fractals may repeat their geometry at smaller or larger scales.
Akhlaq Husain   +3 more
doaj   +1 more source

A Review on Block Matching Motion Estimation and Automata Theory based Approaches for Fractal Coding

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2016
Fractal compression is the lossy compression technique in the field of gray/color image and video compression. It gives high compression ratio, better image quality with fast decoding time but improvement in encoding time is a challenge.
Shailesh Kamble   +2 more
doaj   +1 more source

Fractal-Based Image Encoding and Compression Techniques

open access: yesCommunications, 2013
In computer science and information theory, data compression, source coding, or bit-rate reduction is the process of encoding digital information using fewer bits than the original representation.
Vasileios Drakopoulos
doaj   +1 more source

Home - About - Disclaimer - Privacy