Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 63-68 | DOI: 10.11118/actaun201159060063

Mathematical descriptive characteristics of potato tubers' shape

Aneta Bubeníčková1, Jana Simeonovová1, Vojtěch Kumbár2, Miroslav Jůzl1, ©árka Nedomová1
1 Ústav technologie potravin, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika
2 Ústav techniky a automobilové dopravy, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika

Precise modeling of sorting, manipulation, and transport processes of potatoes are conditioned by exact knowledge of tubers shape geometrical characteristics. The paper presents and quantifies some mathematical descriptive characteristics of potatoes. Ten selected varieties of potato tubers were analyzed. The basic dimensions were used for calculation of geometric mean diameter and volume. The maximum/minimum values were in both cases found for the same variety, Karin and Vera respectively. Calculated sphericity ranged from 0.007732 to 0.009803 for Krasa and Marilyn. The contour profiles were calculated by use of descriptive function and satisfying correlation (r2 up to 0.9972) between computed and measured values was achieved. Radius of curvature was determined and evaluated in several positions. No statistically significant dependences of differences in curvature radius on neither variety nor position was found.

Keywords: geometrical characteristics, radius of curvature, potato tubers, image analysis
Grants and funding:

The research has been supported by the project IGA 234/2101/SP2110201.

Received: July 29, 2011; Published: March 16, 2014  Show citation

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Bubeníčková, A., Simeonovová, J., Kumbár, V., Jůzl, M., & Nedomová, ©. (2011). Mathematical descriptive characteristics of potato tubers' shape. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 59(6), 63-68. doi: 10.11118/actaun201159060063
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