Clustering validity assessment: Finding the optimal partitioning of a data set

M Halkidi, M Vazirgiannis - Proceedings 2001 IEEE …, 2001 - ieeexplore.ieee.org
Clustering is a mostly unsupervised procedure and the majority of clustering algorithms
depend on certain assumptions in order to define the subgroups present in a data set. As a …

On-tree mango fruit size estimation using RGB-D images

Z Wang, KB Walsh, B Verma - Sensors, 2017 - mdpi.com
In-field mango fruit sizing is useful for estimation of fruit maturation and size distribution,
informing the decision to harvest, harvest resourcing (eg, tray insert sizes), and marketing. In …

Effect of processing parameters on pore structures, grain features, and mechanical properties in Ti-6Al-4V by laser powder bed fusion

Q Luo, L Yin, TW Simpson, AM Beese - Additive Manufacturing, 2022 - Elsevier
In this study, the process-structure-property linkages in laser powder bed fusion of Ti-6Al-4V
were investigated experimentally and quantified via correlation analysis. Forty-two different …

A Hu moment invariant as a shape circularity measure

J Žunić, K Hirota, PL Rosin - Pattern Recognition, 2010 - Elsevier
In this paper we propose a new circularity measure which defines the degree to which a
shape differs from a perfect circle. The new measure is easy to compute and, being area …

Automatic detection of blue-white veil and related structures in dermoscopy images

ME Celebi, H Iyatomi, WV Stoecker, RH Moss… - … Medical Imaging and …, 2008 - Elsevier
Dermoscopy is a non-invasive skin imaging technique, which permits visualization of
features of pigmented melanocytic neoplasms that are not discernable by examination with …

Segmentation and classification of road markings using MLS data

M Soilán, B Riveiro, J Martínez-Sánchez… - ISPRS Journal of …, 2017 - Elsevier
Traffic signs are one of the most important safety elements in a road network. Particularly,
road markings provide information about the limits and direction of each road lane, or warn …

A new convexity measure for polygons

J Zunic, PL Rosin - IEEE Transactions on Pattern Analysis and …, 2004 - ieeexplore.ieee.org
Convexity estimators are commonly used in the analysis of shape. In this paper, we define
and evaluate a new convexity measure for planar regions bounded by polygons. The new …

Machine learning metrology of cell confinement in melt electrowritten three-dimensional biomaterial substrates

F Tourlomousis, C Jia, T Karydis, A Mershin… - Microsystems & …, 2019 - nature.com
Tuning cell shape by altering the biophysical properties of biomaterial substrates on which
cells operate would provide a potential shape-driven pathway to control cell phenotype …

[PDF][PDF] Circular object detection using a modified Hough transform

M Smereka, I Dulęba - International Journal of Applied …, 2008 - intapi.sciendo.com
A practical modification of the Hough transform is proposed that improves the detection of
low-contrast circular objects. The original circular Hough transform and its numerous …

Sagittal otolith shape used in the identification of fishes of the genus Serranus

VM Tuset, PL Rosin, A Lombarte - Fisheries Research, 2006 - Elsevier
Shape descriptors of saccular otoliths (sagittae) obtained by image analysis were
investigated for the identification of three species of genus Serranus inhabiting the Canary …