Search results for "gesture"
showing 10 items of 186 documents
Signals of intensification and attenuation in orchestra and choir conduction
2017
Based on a model of communication according to which not only words but also body signals constitute lexicons (Poggi, 2007), the study presented aimes at building a lexicon of conductors’ multimodal behaviours requesting intensification and attenuation of sound intensity. In a corpus of concerts and rehearsals, the conductors’ body signals requesting to play or sing forte, piano, crescendo, diminuendo were analysed through an annotation scheme describing the body signals, their meanings, and their semiotic devices: generic codified (the same as in everyday language); specific codified (shared with laypeople but with specific meanings in conduction); direct iconic, (resemblance between visua…
A DGS gesture dictionary for modelling on mobile devices
2017
ABSTRACTInteractive or Dynamic Geometry System (DGS) is a tool that help to teach and learn geometry using a computer-based interactive environment. Traditionally, the interaction with DGS is based on keyboard and mouse events where the functionalities are accessed using a menu of icons. Nevertheless, recent findings suggest that such a traditional model of interaction has a steep learning curve and is inadequate to develop DGS for devices with multi-touch screens. Thus, we propose a new interaction model for DGS based on a gesture dictionary which enables the construction and manipulation of geometric objects without the need of accessing a menu of icons. The dictionary is divided into thr…
Designing Gesture-Based Control for Factory Automation
2013
We report the development and evaluation of a gesture-based interaction prototype for controlling the loading station of a factory automation system. In this context, gesture-based interaction has the potential to free users from the tedious physical controls but it must also account for safety considerations and users’ perceptions. We evaluated the gesture interaction concept in the field to understand its applicability to industrial settings. Our findings suggest that gesture-based interaction is an emotional, physically charged experience that has the potential to enhance the work process. Participants’ feedback also highlighted challenges related to the reliability of gesture recognitio…
Komunikatīvie žesti agrīnajā valodas apguvē
2018
Samērā nesen zinātnieki sāka pievērst uzmanību agrīnājai valodas apguvei, jo pirms tam nepastāvēja būtiskas atšķirības starp valodu macīšanās procesu un valodu apguvi. Mūsdienās ir veikti pētījumi saistībā ar pirmās valodas apguvi (Lust un Foley, 2008; Clark, 2009), tāpat arī veikti pētījumi otras valodas apguvē (Saville-Troike, 2006), bilingvālās valodas apguves pētījumi (Houwer, 2009), kā arī mazbērnu valodas pētījumi (Crystal, 2005). Šajā maǧistra darbā tika ietverti bērnu žestu pētījumi (Iverson et al., 1999; Blake, 2007; Cochet and Vauclair, 2012; Hoff, 2014). Blake (2007) un Hoff (2014) pētījumi balstīti uz komunikatīviem žestiem, bet (Iverson et al.(1999) un Cochet un Vauclair (2012)…
The Importance of “Empty Gestures” in Recovery: Being Human Together
2017
What do clients/patients want or value from their encounters with healthcare providers? Based on ethnographic research conducted with individuals suffering from drug addiction and mental health issues, this article argues that clients/patients treasure “everyday” or “human” interaction with medical staff. Everydayness is accomplished through three generic social processes: **co-silence, inclusion in back-stage activity, and physical dramatizations of authenticity. These processes and other ordinary interactional strategies for “being human together” should be seen as vital tools for recovery.
AcouMotion – An Interactive Sonification System for Acoustic Motion Control
2006
This paper introduces AcouMotion as a new hard-/software system for combining human body motion, tangible interfaces and sonification to a closed-loop human computer interface that allows non-visual motor control by using sonification (non-speech auditory displays) as major feedback channel. AcouMotion's main components are (i) a sensor device for measuring motion parameters (ii) a computer simulation to represent the dynamical evolution of a model world, and (iii) a sonification engine which generates an auditory representation of objects and any interactions in the model world. The intended applications of AcouMotion range from new kinds of sport games that can be played without visual di…
A Posture Sequence Learning System for an Anthropomorphic Robotic Hand
2003
The paper presents a cognitive architecture for posture learning of an anthropomorphic robotic hand. Our approach is aimed to allow the robotic system to perform complex perceptual operations, to interact with an human user and to integrate the perceptions by a cognitive representation of the scene and the observed actions. The anthropomorphic robotic hand imitates the gestures acquired by the vision system in order to learn meaningful movements, to build its knowledge by different conceptual spaces and to perform complex interaction with the human operator.
Automated Characterization of Mouth Activity for Stress and Anxiety Assessment
2016
International audience; Non-verbal information portrayed by human facial expression, apart from emotional cues also encompasses information relevant to psychophysical status. Mouth activities in particular have been found to correlate with signs of several conditions; depressed people smile less, while those in fatigue yawn more. In this paper, we present a semi-automated, robust and efficient algorithm for extracting mouth activity from video recordings based on Eigen-features and template-matching. The algorithm was evaluated for mouth openings and mouth deformations, on a minimum specification dataset of 640x480 resolution and 15 fps. The extracted features were the signals of mouth expa…
Hand Gestures Recognition and Tracking
2013
In this project we develop a system that uses low cost web cameras to recognise gestures and track 2D orientations of the hand. This report is organized as such. First in section 2 we introduce various methods we undertook for hand detection. This is the most important step in hand gesture recognition. Results of various skin detection algorithms are discussed in length. This is followed by region extraction step (section 3). In this section approaches like contours and convex hull to extract region of interest which is hand are discussed. In section 4 a method is describe to recognize the open hand gesture. Two additional gestures of palm and fist are implemented using Haar-like features. …
Lines or Dots? Reproduction Processes in Handbooks on Illustration, 1890s-1910s
2016
International audience; This chapter examines the way that black and white illustrators came to terms with the industrial use of photomechanical processes and the major changes that occurred in the reproduction of illustrations from the 1890s to the early decades of the 20th century. It explores how handbooks on illustration and illustrators’ autobiographies reflected the need to preserve the so-called “vitality” of the graphic line, an autographic trace of the artist’s gesture. It focuses on the contemporary description and reception of half-tone, the screened process that breaks up tone into dots and that was used to reproduce wash, watercolour, and photographs. This process was often cri…