Shape characterization of particles via generalized Fourier analysis

Réti, Tamás; Czinege, Imre

doi:10.1111/j.1365-2818.1989.tb02903.x

Cited by 19 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to analyze the main reasons for data fluctuations and realize signal remolding and regression, the various frequency signals are decomposed through Fourier analysis to form waveforms with different frequencies and amplitudes [38].…”

Section: Influence Of Operating Conditions On Dynamic Weighingmentioning

confidence: 99%

Influence of Piping on On-Line Continuous Weighing of Materials inside Process Equipment: Theoretical Analysis and Experimental Verification

Jing

Feng²,

Wang

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

Due to the continuity and complexity of chemical systems, piping and operating conditions will have a significant effect on the on-line continuous weighing of materials inside process equipment. In this paper, a mathematical model of the weighing system considering piping and operating conditions was established based on the gas–liquid continuous heat transfer weighing process. A theoretical criterion which can be extended to any continuous weighing system of the materials inside equipment with connected piping is obtained through the mechanical derivation between the material mass, the cantilever beam deflection, the strain gage deformation, and the bridge output voltage. This criterion can effectively predict the influence of piping on weighing results with specific accuracy, and provide a basis for engineering optimization design. On this basis, a set of gas–liquid continuous contact weighing devices was built. The static/dynamic experimental results showed that the accuracy of the system meets the set requirements.

show abstract

Section: Influence Of Operating Conditions On Dynamic Weighingmentioning

confidence: 99%

Influence of Piping on On-Line Continuous Weighing of Materials inside Process Equipment: Theoretical Analysis and Experimental Verification

Jing

Feng²,

Wang

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Very little has been done to derive local shape parameters from chain code descriptions. The major research area in this field is Fourier shape analysis (Ehrlich & Weinberg, 1970;Reti & Czinege, 1989;Luerkens, 1991). It is not within the scope of this paper to discuss the many problems related to Fourier methods.…”

Section: On)mentioning

confidence: 99%

Shape processing and analysis using the calypter

Pirard¹

1994

Journal of Microscopy

View full text Add to dashboard Cite

Summary After presenting some elementary criteria that should be respected by any automatic shape analysis technique, this paper focuses on the importance of the binary image encoding method. Most image analysers simply use a raster image to represent a binary object. If, occasionally, a vectorial description is available, it is merely chosen for its performances in data compression. Data compression and shape analysis have different goals and usual methods cannot satisfy both. The calypter is a new descriptor vectorizing the shape as a set of maximal inscribed discs. It is the most efficient means of accomplishing Euclidean mathematical morphology transformations and allows for further developments in binary shape processing. A simple adaptive contour filtering technique is presented. The calypter offers local and global perception of shape characteristics. It permits complete automation of the morphometric roundness charts used in many laboratories and also generates new shape parameters. A case study of three sand populations is presented to show the pertinence of a new ‘equivalent roundness' parameter.

show abstract

“…The most characteristic shape functions are the methods based on the Fourier-analysis, the socalled distance-function and curvature-function. One of the advantages of the methods based on the Fourier-analysis is that the shape functions have information of the symmetry properties and the geometrical similarity [17], [22]. In these methods numerical algorithms are not needed to use because the results can be determined directly from an integration.…”

Section: Introductionmentioning

confidence: 99%

Shape Features of 2D Figures

Szakál

Zsoldos

2010

MSF

View full text Add to dashboard Cite

The symmetry-diagram was originally defined for symmetry recognition. As a consequence it has been proven that the symmetry-diagram shows the unique shape property of the two-dimensional (2D) figures. The symmetry-diagram is different in the case of 2D figures having a different shape. It is very sensitive to the smallest change in the shape. The only exception for its applicability is the 2D figure having two or more concentric boundary loops.

show abstract

Shape characterization of particles via generalized Fourier analysis

Cited by 19 publications

References 7 publications

Influence of Piping on On-Line Continuous Weighing of Materials inside Process Equipment: Theoretical Analysis and Experimental Verification

Influence of Piping on On-Line Continuous Weighing of Materials inside Process Equipment: Theoretical Analysis and Experimental Verification

Shape processing and analysis using the calypter

Shape Features of 2D Figures

Contact Info

Product

Resources

About