Towards the Automatic Detection of Hand Fingertips and Phalanges in Thermal Images

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Elsa Sousa (Author) Other; Ricardo Vardasca (Author) FEUP; Joaquim Mendes (Author) FEUP; António Costa Ferreira (Author) FMUP

Conference proceedings International

Title: European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2017: VipIMAGE 2017

Pages: 1053-1062

6th ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing (VipIMAGE)

Porto, PORTUGAL, OCT 18-20, 2017

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Other information

Authenticus ID: P-00N-5WS

DOI: 10.1007/978-3-319-68195-5_117

Abstract (EN): Manual analysis of thermal images and definition of regions of interest (ROI) of hands is a tedious and time-consuming task. Towards the automatic detection of anatomical thermal ROIs, an algorithm to automatically detect fingertips and phalanges were developed, using MATLAB (R). Two strategies for fingertips detection were applied. The two algorithms were developed using 48 hand thermal images (size 320 x 240) as a training set, while 12 integrated the test set. The algorithms' evaluation metric assesses the hand binarization and edge extraction, as well as the fingertip and phalanges detection. This evaluation metric showed a hit score of 70.2% for the first approach and 88.6% for the second method. The first approach shows a reasonable relationship between the average temperature of the detected phalanges and the manual marked phalanges (R-2 = 0.6477), while the second approach presents a much strongest linear correlation (R-2 = 0.9551), where the variables are highly associated, proving its efficiency. Future work includes improving the algorithm by using a larger training set.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10