scholarly journals CONTRIBUTIONS OF SIGN LANGUAGE RESEARCH TO GESTURE UNDERSTANDING: WHAT CAN MULTIMODAL COMPUTATIONAL SYSTEMS LEARN FROM SIGN LANGUAGE RESEARCH

2008 ◽  
Vol 02 (01) ◽  
pp. 5-19 ◽  
Author(s):  
RONNIE B. WILBUR ◽  
EVGUENIA MALAIA
Keyword(s):  
Internal Structure ◽  
Sign Language ◽  
Motion Capture ◽  
Kinematic Analysis ◽  
Language Research ◽  
Gesture Understanding ◽  
Computational Systems

This paper considers neurological, formational and functional similarities between gestures and signed verb predicates. From analysis of verb sign movement, we offer suggestions for analyzing gestural movement (motion capture, kinematic analysis, trajectory internal structure). From analysis of verb sign distinctions, we offer suggestions for analyzing co-speech gesture functions.

Current and future methodologies for quantitative analysis of information transfer in sign language and gesture data

2017 ◽  
Vol 40 ◽  
Author(s):  
Evie Malaia
Keyword(s):  
Quantitative Analysis ◽  
Data Collection ◽  
Sign Language ◽  
Motion Capture ◽  
Information Transfer ◽  
State Of The Art ◽  
Video Data ◽  
Noninvasive Methods ◽  
Video Recordings ◽  
Biological Differentiation

AbstractState-of-the-art methods of analysis of video data now include motion capture and optical flow from video recordings. These techniques allow for biological differentiation between visual communication and noncommunicative motion, enabling further inquiry into neural bases of communication. The requirements for additional noninvasive methods of data collection and automatic analysis of natural gesture and sign language are discussed.

How long is the sign?

Linguistics ◽  
2015 ◽  
Vol 53 (1) ◽  
Author(s):  
Tommi Jantunen
Keyword(s):  
Sign Language ◽  
Structural Features ◽  
Sign Languages ◽  
Sign Recognition ◽  
Language Research

AbstractThis paper deals with the relative empirical length of signs in sign languages and provides evidence for the view that they are actually longer units than has hitherto been recognized. The evidence is presented from two perspectives: those of sign articulation and sign recognition. Concerning sign articulation, it is suggested that signs are longer units than is currently assumed because most of the structural features of signs are in fact already present before the currently accepted beginnings of signs and they continue after signs' generally accepted endings. Concerning sign recognition, the longer view of the sign is proposed on the grounds that the recognition point of signs is typically located before their alleged beginning, and because signs (as currently understood) can also be recognized on the basis of parts of their subsequent transitions only. The nature of the longer sign is discussed together with some more general consequences for sign language research of the revision of our view of what a sign might be.

scholarly journals Comparison of Lower Limb Segments Kinematics in a Taekwondo Kick. An Approach to the Proximal to Distal Motion

2015 ◽  
Vol 47 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Isaac Estevan ◽  
Coral Falco ◽  
Julia Freedman Silvernail ◽  
Daniel Jandacka
Keyword(s):  
Motion Capture ◽  
Lower Limb ◽  
Kinematic Analysis ◽  
Peak Velocity ◽  
Frontal Plane ◽  
Distal Segment ◽  
Proximal Segment ◽  
Camera Motion ◽  
Motion Capture System ◽  
Sequential Movement

AbstractIn taekwondo, there is a lack of consensus about how the kick sequence occurs. The aim of this study was to analyse the peak velocity (resultant and value in each plane) of lower limb segments (thigh, shank and foot), and the time to reach this peak velocity in the kicking lower limb during the execution of the roundhouse kick technique. Ten experienced taekwondo athletes (five males and five females; mean age of 25.3 ±5.1 years; mean experience of 12.9 ±5.3 years) participated voluntarily in this study performing consecutive kicking trials to a target located at their sternum height. Measurements for the kinematic analysis were performed using two 3D force plates and an eight camera motion capture system. The results showed that the proximal segment reached a lower peak velocity (resultant and in each plane) than distal segments (except the peak velocity in the frontal plane where the thigh and shank presented similar values), with the distal segment taking the longest to reach this peak velocity (p < 0.01). Also, at the instant every segment reached the peak velocity, the velocity of the distal segment was higher than the proximal one (p < 0.01). It provides evidence about the sequential movement of the kicking lower limb segments. In conclusion, during the roundhouse kick in taekwondo inter-segment motion seems to be based on a proximo-distal pattern.

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