The present invention discloses an image tracking system and an image tracking method thereof. The image tracking system comprises an image capture module, a detection module and a processing module. The image capture captures a real-time image. The detection module analyzes the real-time image, and detects whether positions of a plurality of instruments are disposed in the real-time image. The processing module defines a buffer zone in the real-time image, and analyses whether the plurality of instruments are disposed in the buffer zone based on positions of the plurality of instruments, and determines whether the distance between the plurality of instruments is small than a preset distance. When the spacing distance is small than the preset distance, the processing module emits a controlling signal to control the image capture module move to a capture position. As a result, the present invention can achieve an image tracking real time and provides a stable image.本發明係揭露一種影像追蹤系統及其影像追蹤方法,影像追蹤系統包含一影像擷取模組、一偵測模組及一處理模組。影像擷取模組係擷取即時影像。偵測模組係分析即時影像,並偵測複數個器械之位置是否位於即時影像內。處理模組於即時影像中定義緩衝區域,根據該些器械之位置分析該些器械是否位於即時影像之緩衝區域內,並處理模組計算該些器械間之間隔距離,且判斷該些器械間之間隔距離是否小於預設距離。當間隔距離小於預設距離,則處理模組發出控制訊號以控制影像擷取模組移動至擷取位置。如此一來,本發明可即時完成影像追蹤,並提供穩定的影像。1‧‧‧影像追蹤系統11‧‧‧影像擷取模組111‧‧‧即時影像12‧‧‧偵測模組13‧‧‧處理模組131‧‧‧控制訊號
