We present an automatic sign language recognition system that is vision-based, person-independent, and non-obtrusive. Its task is to evaluate the correctness of an isolated sign. The unique features are an adaptive skin model to find the hands, 3D features, Dynamic Time Warping for synchronising signs and automatic feature selection for finding the best sign representation. A Dutch 120-sign voc...

Most computer-assisted surgery systems are an isolated standalone system in the operation room with obtrusive and cumbersome wired connections. Surgery data preparation, registration, segmentation, planning, etc. have to be running at one place. Dynamic data acquisition and cooperation during the surgical procedure is not currently possible. We develop the M-CASEngine system which provides a di...

This study attempted to systematically inspect the impact of direct and indirect corrective feedbacks on the writing ability of EFL learners when using product/process based instructions. To do so, 110 female EFL learners, between the ages of 15 and 18, were randomly assigned into four experimental groups to receive four different kinds of treatments, namely product-based instruction with direc...

The present paper proposes a novel methodology to monitor sleep apnea through thermal imaging. First, the nostril region is segmented and it is tracked over time via a network of cooperating probabilistic trackers. Then, the mean thermal signal of the nostril region, carrying the breathing information, is analyzed through wavelet decomposition. The experimental set included 22 subjects (12 men ...

Visual elements such as grids, labels, and contour lines act as reference structures or visual metadata that support the primary information being presented. Such structures need to be usefully visible, but not so obtrusive that they clutter the presentation. Our goal is to determine the physical, perceptual and cognitive characteristics of such structures, ideally in a way that enables their a...

Value reuse improves a processor’s performance by dynamically caching the results of previous instructions and reusing those results to bypass the execution of future instructions that have the same opcode and input operands. However, continually replacing the least recently used entries could eventually fill the value reuse table with instructions that are not frequently executed. Furthermore,...

objectives: verbal self-instruction strategy is one of the useful techniques for treating individual with learning disability. the purpose of the present study was to determine the effect of verbal self-instructional package on the social competence of students with learning disability. methods: the study was done in a quasi-experimental research and pre-test, post-test design with control grou...

background: video-based instruction has been stated as an effective method of teaching and its potentials have encouraged instructors learners to opt this method purpose: the current study has compared the students' cognitive learning in the two approaches of lecture- based and video-based teaching. methods: this quasi-experimental study was conducted on 88 senior nursing students who were rand...