| Title |
Galvos pozicijos nustatymas ekrano atžvilgiu naudojant ant galvos pritvirtintą kamerą / |
| Translation of Title |
Tracking of head position relative to the screen using head mounted camera. |
| Authors |
Borcovas, Evaldas ; Daunys, Gintautas |
| DOI |
10.3846/mla.2013.10 |
| Full Text |
|
| Is Part of |
Mokslas – Lietuvos ateitis = Science – Future of Lithuania.. Vilnius : Technika. 2013, vol. 5, no. 2, p. 65-69.. ISSN 2029-2341 |
| Keywords [eng] |
image processing ; computer vision ; head positioning |
| Abstract [eng] |
In this paper head position locating systems were analyzed. There were reviewed scientific articles with different proposed methods. The chosen system is with the camera located on the user head. The main parameters of the head positioning systems are found. The diagram of the system and detail block diagram of the algorithm were provided. Realization of the algorithm used: edge detection method (Sobel), the adjustment algorithm (Subpixel). System is realized in Matlab and C# environment. Determine the optimal parameters for the algorithm execution. Execution of the algorithm in Matlab environment is 1.2 s and C # environment – 126 ms. During the examination of the longest executing algorithm segment, it was found that image filtering is carried out in 107 ms. It is noted that the uncertainty of the algorithm can be divided into static and measurement. The maximum static uncertainty while measuring head position parameters is 1.63 mm and orientation parameters – 0.16°. The maximum measurement uncertainty while measuring head position parameters is 4 mm and orientation parameters – 0.11°. |
| Published |
Vilnius : Technika |
| Type |
Journal article |
| Language |
Lithuanian |
| Publication date |
2013 |
| CC license |
|
