background the number of laparoscopic procedures done each year continues to rise substantially. clinically significant hemorrhage from secondary port sites at laparoscopy is an uncommon but serious complication and can become unrecognized intraoperatively. abdominal wall hemorrhage and bruising may complicate laparoscopic operative procedures. methods we propose an easy technical gesture to st...

Modal verbs in English are challenging to learn by speakers of other languages. The purpose of thiswas to shed light on the use of gesture in learning English modal verbs by Persian-speaking children.To achieve this, 60 elementary Iranian learners, studying at some institutes in Karaj took part in thisstudy. The participants were randomly put into one experimental group and one control group. T...

The study aimed to shed light on the use of gesture in resolving lexical ambiguity employed by TEFL students. To this end, 60 intermediate Iranian learners, studying at Kish Way Language School in Iran were recruited. The participants were randomly put into two experimental groups and one control group. Both of the experimental groups received the same teaching approach, i.e. teaching homonyms ...

with the rapid emergence of 3d applications and virtual environments in computer systems; the need for a new type of interaction device arises. this is because the traditional devices such as mouse, keyboard, and joystick become inefficient and cumbersome within these virtual environments. in other words, evolution of user interfaces shapes the change in the human-computer interaction (hci). in...

Hand gesture recognition is very important to communicate in sign language. In this paper, an effective object tracking and hand gesture recognition method is proposed. This method is combination of two well-known approaches, the mean shift and the motion detection algorithm. The mean shift algorithm can track objects based on the color, then when hand passes the face occlusion happens. Several...

This study explores the coordination between manual pointing gestures and gestures of the vocal tract. Using a novel methodology that allows for concurrent collection of audio, kinematic body and speech articulator trajectories, we ask 1) which particular gesture (vowel gesture, consonant gesture, or tone gesture) the pointing gesture is coordinated with, and 2) with which landmarks the two ges...

Aiming at the problem that segmented gesture by Kinect depth information usually contains wrist data, which easily causes subsequent false gesture recognition, a gesture segmentation and positioning algorithm based on improved depth information was proposed.Firstly, the gesture binary image was detected based on depth information threshold limit in experimental space.Secondly, according to char...