Design on Dance Appreciation Video System Based on MVC Mode

Abstract In this paper authors describe in details a system dedicated to scene configuration. The user can define different important 2D regions of the scene. There is a possibility to define the following kinds of regions: flour, total covering, down covering, up covering, middle covering, entrance/exit, protected area, prohibited area, allowed direction, prohibited direction, reflections, moving objects, light source, wall and sky. The definition of this regions is very important to further analysis of live stream camera data in the guardian video system.

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Compact disc video system. 12 cm CD-V

10.3403/00289882 ◽

1993 ◽

Cited By ~ 1

Keyword(s):

Compact Disc ◽

Video System

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Sound source localization based on audio-video system of mobile robot

Journal of Computer Applications ◽

10.3724/sp.j.1087.2009.02471 ◽

2009 ◽

Vol 29 (9) ◽

pp. 2471-2472

Author(s):

Tao CHEN ◽

Ming-lu ZHANG ◽

Ling-li FU

Keyword(s):

Mobile Robot ◽

Source Localization ◽

Sound Source ◽

Sound Source Localization ◽

Video System ◽

Audio Video

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MARVEL IN VIVO WIRELESS VIDEO SYSTEM

Technology & Innovation ◽

10.3727/194982412x13500042169090 ◽

2012 ◽

Vol 14 (3) ◽

pp. 329-340 ◽

Cited By ~ 1

Author(s):

A. Alqassis ◽

T. Ketterl ◽

C. Castro ◽

R. Gitlin ◽

S. Ross ◽

...

Keyword(s):

Wireless Video ◽

Video System

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A digital video system for the CATV industry

Proceedings of the IEEE ◽

10.1109/proc.1970.7846 ◽

1970 ◽

Vol 58 (7) ◽

pp. 1026-1035

Author(s):

D. Kirk ◽

M.J. Paolini

Keyword(s):

Digital Video ◽

Video System

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Ball Impact Position in Recreational Male Padel Players: Implications for Training and Injury Management

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18020435 ◽

2021 ◽

Vol 18 (2) ◽

pp. 435

Author(s):

Bernardino Javier Sánchez-Alcaraz ◽

Rafael Martínez-Gallego ◽

Salvador Llana ◽

Goran Vučković ◽

Diego Muñoz ◽

...

Keyword(s):

Motion Tracking ◽

Center Of Gravity ◽

Musculoskeletal Injuries ◽

Ball Impact ◽

Video System ◽

Injury Management ◽

Racket Sports ◽

Impact Position ◽

Proper Training

Racket sports such as padel are characterized by the repetition of unilateral gestures, which can lead to negative adaptations like asymmetries or overuse musculoskeletal injuries. The purpose of this study was to determine the differences in ball impact positions (i.e., forward or backward of the center of gravity) in nine stroke types in a sample of forty-eight recreational male padel players. The sample included 14,478 shots corresponding to 18 matches from six tournaments. Forty-eight male padel players were classified into two groups according to their level: trained (n = 24) and novice (n = 24). Type of stroke and ball impact position were registered using a computerized motion tracking video system. The ball impact position was computed from the distance (cm) between the coordinates of the ball and the player’s center of gravity. Results show that trained players hit the ball in a more backward position (from 11 to 25 cm, compared to novice) in serve and offensive strokes (volleys, trays, and smashes) but used more forward strokes (from 7 to 32 cm, compared to novice) in defensive shots (groundstrokes, wall strokes, and lobs). Because the current differential variables are trainable and demonstrated to be of relevance for performance, the findings of this study may assist padel coaches in designing proper training plans to improve effectiveness and to prevent musculoskeletal injuries regarding the type of stroke and ball impact position. Such knowledge may constitute a very important factor affecting technique, biomechanics, and injury management in padel players of different competitive levels.

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