2D和3D視覺模式下觀看跆拳道品勢動作之視覺差異

Visual Differences When Watching 3D Versus 2D Videoed Poomsae Movements in Taekwondo

目的：探討在2D與3D不同視覺模式下，公開組跆拳道選手在觀看跆拳道品勢（平原型）的總凝視次數、總凝視時間以及在觀看不同動作部位（軀幹、手部、步伐、頭部、踢擊）凝視時間和凝視次數的差異。方法：招募11名公開組跆拳道品勢選手運用2D及3D視覺眼動器材系統觀看平原型分析凝視次數及凝視時間差異，並以配對樣本t檢定進行資料統計分析。結果：在2D與3D不同視覺模式下，3D在總凝視次數顯著多於2D的總凝視次數，在平原型各部位凝視時間中2D的步伐及踢擊觀看時間顯著多於3D。在平原型各部位觀看次數中3D在觀看手部、踢擊及軀幹上顯著多於2D的觀看次數。結論：2D和3D視覺模式下觀看跆拳道品勢動作之視覺有所差異，運用3D視覺模式可以影響選手在觀看影片上的視覺搜索次數。

 

Purposes: Identify the differences on total gazing frequency, time, and fixation (trunk, arms, steps, head, or kicks) of Taekwondo athletes in class A when viewing 3D and 2D videoed Poomsae (Pyongwon) movements. Methods: 11 class A Poomsae athletes were recruited to watch both 3D and 2D videos on an integrated Stereoscopic System. Data regarding total gazing frequency, time, and fixation were collected for t-test statistical analysis. Results: the total gaze frequency is higher in 3D video than 2D video. For Pyongwon movements, the gazing time on steps and kicks in 3D was significantly longer than in 2D. Conclusions: there are visual differences between watching 2D and 3D videoed Pyongwon movements. The visual search frequency of athletes is increased when viewing 3D videos.