coal mine classification images pdf
COAL CHARACTERISTICS
Geologists also classify coal types according to the organic debris, called macerals, from which the coal is formed. Macerals (microscopic organic constituents found in coal) are identified (microscopically) by reflected light - the reflective or translucent properties of the coal indicating the individual component macerals
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Coal mining
Coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then …
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Deep convolutional neural networks for surface coal mines …
This is achieved using Convolutional Neural Networks (CNN) that has proven to be capable of complex land use/land cover classification tasks. With a list of …
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Classification of Surrounding Rock of Bolt Supported in Coal Mine …
The mine pressure appearance of the mining roadway is much more complicated than that of the single roadway in the solid coal that is not affected by the mining [1].Its maintenance depends on not ...
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(PDF) Research on image classification of coal and gangue …
It is vital to differentiate between coal and gangue in coal mining effectively. In recent years, classification methods for images of coal‐ and gangue‐based convolutional neural networks have ...
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The Origin and Classification of Coal
Coal is classified as a biogenic sedimentary rock within the group of sedimentary hydrocarbons. It is a combustible black rock consisting mainly of carbon. Coal is formed …
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A texture fused superpixel algorithm for coal mine waste rock image …
A new superpixel segmentation algorithm that combines color, spatial position, and texture in clustering is proposed, which integrates texture information into SLIC algorithm, which has better segmentation effect. ABSTRACT In coal production, it is necessary to separate waste rock from raw coal. With the development of computer …
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(PDF) Image classification method of underground coal …
A coal image dataset that can reflect the destruction type and a classification method that focuses on the texture features of the tectonic coal are needed for the study of coal destruction type ...
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Monitoring ecosystem restoration of multiple surface coal mine …
Request PDF | Monitoring ecosystem restoration of multiple surface coal mine sites in China via Landsat images on Google Earth Engine | The restoration of surface mining sites is key to meeting ...
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Coal and gangue classification in actual environment of …
Fig. 1 compares the surface state differences of coal and gangue in various situations based on the proposed model. In the ideal laboratory environment, the light …
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(PDF) Research on Automatic Classification of Coal Mine …
Efficient and accurate classification of the microseismic data obtained in coal mine production is of great significance for the guidance of coal mine production safety, disaster prevention and ...
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Remote sensing classification method of vegetation …
Time series remote sensing image is an important resource for dynamic monitoring of resources and environment, and its abundant time spectrum information can be used to characterize the dynamic change of vegetation coverage. This paper proposes a comprehensive clustering and pixel classification method for extracting the vegetation …
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Quantitative assessment of landscape transformation due to coal mining …
Opencast (coal) mining activities significantly affect the society and environment in several aspects, including land-useland-cover (LULC) alteration. The present study aims to quantify the alteration in LULC patterns in every 4 year from 2006 to 2018 in the Jharsuguda coal mining region in Odisha, India. The study has used the …
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The Origin and Classification of Coal | SpringerLink
Abstract. This chapter describes the process of coalification, which gradually turns plant debris into coal, involving heat, pressure and the effects of time. Chemical …
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Coal mine area monitoring method by machine learning and …
DOI: 10.1016/j.infrared.2019.103070 Corpus ID: 209988379; Coal mine area monitoring method by machine learning and multispectral remote sensing images @article{He2019CoalMA, title={Coal mine area monitoring method by machine learning and multispectral remote sensing images}, author={Dakuo He and Ba Tuan Le and …
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An open dataset for intelligent recognition and classification …
The coal mine image dataset produced in this work is of great significance for the application of deep learning object detection algorithm for the intelligent identification and classification of ...
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Coal and gangue classification in actual environment of mines …
Fig. 1 compares the surface state differences of coal and gangue in various situations based on the proposed model. In the ideal laboratory environment, the light intensity is high, the coal and gangue image acquisition process is simple, and the camera receives more light signals, so it is easy to distinguish coal and gangue; however, in the …
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Coal and Rock Classification with Rib Images and Machine …
The classification of rock from coal on rib images has been studied with machine learning techniques to assist for the automated rib stability analysis and enables the shearer to adjust the drums without human intervention. Classification of rock and coal is one preliminary problem for fully automated or intelligent mining. It assists for the …
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A Novel Index to Detect Opencast Coal Mine Areas from …
The results showed that SVM classification method can effectively be utilized for high spatial resolution multispectral satellite images for identifying the changes in surface coal mine area ...
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(PDF) Remote Sensing for Surface Coal Mining and
The mean NDVI for coal mining areas was 0.252 km2, and for areas of reclamation, it was 0.292 km2 in 2020, while in 2019, the value for coal mining sites was 0.133 km2, and 0.163 km2 for ...
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(PDF) COAL MINING METHODS
The continuous miner cutter (CMC) sleeve is an integral part of the mining tools, including the boxes and picks. It is designed to allow free rotation of the pick in its bore while cutting the coal.
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Intelligent Identification of Maceral Components of Coal Based on Image
Scientists and researchers performed various approaches for coal classification. Image segmentation and classification-based approaches are applied to identify the maceral components of the coal ...
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A novel coal-gangue recognition method in underground coal mine …
Accurate and rapid recognition of coal and gangue is an important prerequisite for safe and efficient mining in top coal caving face. In this paper, a novel coal-gangue recognition method is put ...
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A New Identification Method for Surface Cracks from UAV Images …
Obtaining real-time, objective, and high-precision distribution information of surface cracks in mining areas is the first task for studying the development regularity of surface cracks and evaluating the risk. The complex geological environment in the mining area leads to low accuracy and efficiency of the existing extracting cracks methods from …
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Intelligent Identification of Maceral Components of Coal Based on Image
An intelligent analytical technique which is able to accurately identify maceral components is highly desired in the fields of mining and geology. However, currently available methods based on fixed-size window neglect the shape information, and thus do not work in identifying maceral composition from one entire photomicrograph. To …
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[PDF] Low-light images enhancement method in coal mine …
This method has certain advantages, which can significantly improve the overall brightness of the image, reduce the noise, and is more in line with the human visual perception, and meets the needs of the construction of intelligent mine video monitoring system. In order to solve the problems of low illumination and poor image quality in video monitoring …
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Identification and Monitoring of Surface Elements in Open-Pit Coal Mine
Coal mining has brought a series of environmental problems. Local government departments have issued relevant governance policies, but the premise of scientific prevention and control is to correctly grasp the actual distribution of various ground objects in the mining area. Using classification methods to extract ground object …
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Land characteristic information and classification in opencast coal …
Coal mining, particularly surface mining, inevitably disturbs land. According to Landsat images acquired over Xilingol grassland in 2005, 2009 and 2015, land uses were divided into seven classes ...
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This publication has been compiled by Coal Mine …
1.1 Radiology practices involved in acquiring digital chest X-ray images for coal mine workers are required to comply with all relevant State or Territory and Commonwealth legislation. 2. RANZCR and DIAS standards . Radiology practices and the personnel involved in acquiring digital chest X-ray images for coal mine workers are required to:
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STATISTICS OF MINES IN INDIA Vol I Coal
1.15 Classification of coal mines by size of overall output: ownerwise 33 1.16 Average daily employment and output by type of mine workings: statewise 34 1.17 Average daily employment and output by type of mine workings: ownerwise 39 1.18 Productivity in coal mines: statewise 42 ...
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