English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The separation of coal and gangue is an important part in the coal-preparation process, which can be realized by image recognition technique. The unique optical texture of coal is the most obvious visual features to distinguish coal and gangue. The current research represented the attempt to implement the multifractal analysis in the optical texture of coal and gangue. Firstly, fractal theory is applied to verify the multiscale characteristics of coal and gangue images. Then a new method of using the multifractal spectrum to describe and identify the optical texture characteristics of coal and gangue is constructed. Finally, we analyzed the coal and gangue images according to the physical meaning of the parameters in the multifractal spectrum. The results demonstrate that the optical texture of coal and gangue presents the characteristics of complexity and self-similarity, and the multifractal spectrum is an appropriate tool for characterizing the optical texture structure of the coal and gangue. The representative parameters in multifractal spectrum can be used as efficient features for the recognition of coal and gangue. It is thus clear that the multifractal model is a novel and feasible method to describe and recognize the optical texture characteristics of coal and gangue images.

Discrimination analysis of coal and gangue using multifractal properties of optical texture