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Author: search.filters.author.Gupta, NeetikaSubject: search.filters.subject.Augmented Reality

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    Image feature detection using an improved implementation of maximally stable extremal regions for augmented reality applications
    (Taylor & Francis, 2017-05) Rohil, Mukesh Kumar; Gupta, Neetika
    Augmented Reality for all practical purposes requires extensive computation, accurate view alignment and real-time performance. To address some of these limitations, an improved method of feature detection is proposed using Maximally Stable Extremal Regions. The approach used for feature detection extracts the regions of interest using a true flood fill approach for building and maintaining the component tree. This approach has true worst-case linear complexity (Linear-MSER). In the present work, Linear-MSER is implemented at multiple scales of an image in order to increase the affine invariance properties of the detector (MSLinear-MSER). The two detectors, Linear-MSER and MSLinear-MSER, are then combined separately with Scale Invariant Feature Transform and Speeded-Up Robust Feature descriptors for performance comparison. Performance evaluation is done under varying imaging conditions like changes in viewpoint, scale, blur, illumination and JPEG compression. Results show that, MSLinear-MSER+SIFT performs best in terms of time-complexity and number of keypoint matches when executed at six octaves and five levels. This observation is true for all image-sets taken into consideration, containing images that are affine transformed in one way or other. To exhibit the efficiency of MSLinear-MSER+SIFT, a prototype of an AR system is also developed and discussed in this article using this approach.
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    Exploring Possible Applications of Augmented Reality in Education
    (IEEE, 2017) Rohil, Mukesh Kumar; Gupta, Neetika
    In recent years, use of Augmented Reality (AR) has been explored in a wide range of applications in various fields. Among these, one of the most inquired is the field of education. Many of these studies have shown that the use of AR in any learning environment promotes critical thinking, better understanding and motivates the learner for further studies. This is due to the real-time experience that AR brings with it to the learners. This paper reports some of the recent studies that list positive and negative impact of AR in an educational setting and how beneficial the employment of this technology is. The paper also gives an overview of some of the possible and promising applications of AR in the fields of science, social science, mathematics and language. Furthermore, the paper discusses trends and the vision towards future opportunities for possible research in augmented reality for education.