This paper evaluates 2D feature detection methods with respect to invariance and efficiency properties. The studied feature detection methods are as follows: Speeded Up Robust Features, Scale Invariant Feature Transform, Binary Robust Invariant Scalable Keypoints, Oriented Binary Robust Independent Elementary Features, Features from Accelerated Segment Test, Maximally Stable Extremal Regions, B...

The determination of Region-of-Interest has been re cognised as an important means by which unimportant image content can be identified and exc luded during image compression or image modelling, however existing Region-of-Interest dete ction methods are computationally expensive thus are mostly unsuitable for managing l arge number of images and the compression of images especially for real-tim...

The purpose of this study is to give a detailed performance comparison about the feature detector and descriptor methods, particularly when their various combinations are used for image matching. As the case study, the localization experiments of a mobile robot in an indoor environment are given. In these experiments, 3090 query images and 127 dataset images are used. This study includes five m...

The purpose of this article is to present a novel method for region based image watermarking that can tolerate local image distortions to a substantially greater extent than existing methods. The first stage of the method relies on computing a normalized version of the original image using image moments. The next step is to extract a set of feature points that will act as centers of the waterma...

The capability of handling anaphora is becoming a key feature for Question Answering systems, as it can play a crucial role at different stages of the QA loop. At the question processing stage, on which this paper is focused, it enhances the treatment of follow-up questions, allowing for a more natural interaction with the user. As much as the QA task evolves towards a realistic dialogue-based ...

In this paper, a new no-reference objective metric for the quality assessment of H.264/AVC encoded video is proposed and evaluated. Quality scores provided by the new metric are computed as a linear combination of simple features extracted from the video sequence received at the decoder. Using a set of 8 video sequences spanning a wide range of spatio-temporal activities, it is shown that the c...

Many people today are using Internet technologies to communicate with others to gather information, research and/or purchase goods and services. One of the most important areas where these activities are occurring is related to healthcare. According to an April 2002Harris Poll, of the 137 million Americans who surf the Internet, more than 60 percent use the resource for health advice. In additi...

Introduction / objectives Partnership between service users and researchers is a cornerstone of the current research and development strategy for England’s National Health Service and is considered by funders as essential throughout the entire research process. To promote and facilitate public involvement in the field of HCAI research, the HCAI Research Network (RN) formed a Service User Resear...