Yuan Heng, Wang Zhihong, Jiang Wentao. Coal pile location and recognition method based on entropy energy[J]. Journal of Image and Graphics, 2015, 20(8): 1062-1069. DOI: 10.11834/jig.20150809.
A novel approach to coal pile location and recognition
which is based on entropy energy
is proposed in this paper to solve interference problems in a complex environment
which inhibit detection efficiency in coal mines. First
continuous information sampling units are scattered in the image
and the distribution area and gray levels of the larger probability density in the sampling unit are determined. All energy frequencies of the sampling unit are then calculated
the weakest of which is removed by filtration
and the edge of coal pile is calculated by second-order partial derivatives. The sampling unit is moved to the edge of the coal pile. Finally
the early warning based on the coal pile height and radius is ready for the upper limit
which is calculated according to the sampling unit. The average processing speed of the single image is 0.35 seconds per frame
the maximum of coal accident warning time interval is 0.35 seconds
and the average recognition accuracy is 97.1 percent
which is the method text results on the coal pile videos of coal mines. Experiments show that. This method can overcome the effects of noise and blurred image on the recognition of coal pile by taking advantage of the ability of entropy energy to identify a fuzzy edge and its resistance to environmental noise. Experiments show that the proposed approach has good adaptability to coal pile location and recognition
and is of significant and practical value to improve the efficiency and safety of coal mine production.