Browsing by Author "Wijebandara, C"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    item: Conference-Abstract
    Feature point tracking algorithm evaluation for augmented reality in handheld devices
    Perera, A; Pemasiri, A; Wijayarathna, S; Wijebandara, C; Gamage, CD
    In augmented reality applications for handheld devices, accuracy and speed of the tracking algorithm are two of the most critical parameters to achieve realism. This paper presents a comprehensive framework to evaluate feature tracking algorithms on these two parameters. While there is a substantial body of knowledge on these aspects, a novel feature introduced in this paper is the use of error associated with the estimated directional movement in performance measurements to improve the evaluation framework. The work described in this paper is a comparative evaluation of nine widely used feature point tracking algorithms using the developed measurement framework and the results are interpreted based on the characteristics of the algorithms as well as the characteristics of test image sequences.
  • Thumbnail Image
    item: Conference-Abstract
    An Online lighting model estimation using neural networl(s for augmented reality in handheld devices
    (2015) Pemasiri, A; Wijebandara, C; Wijayarathna, S; Perera, A; Gamage, CD
    The level of realism in augmented reality applications is heavily dependent on the consistency of illumination between real objects and virtual objects. This paper presents a comprehensive methodology to model the real world lighting and synthesize it with virtual objects which are rendered. While there is a substantial body of knowledge on this aspect, the novel methodology suggested in this paper has its own advantages of not having to have any prior knowledge on the environment or any special hardware, which increases the usability of the system while making it possible to be utilized in online systems.