聲門在動物中佔有非常重要的地位，其動態變化在目前生理研究也是一重要的議題。本研究主要目的為探討大鼠聲門的影像處理運用Matlab電腦程式運算大鼠聲門面積並描繪曲線，改善目前人工每張數位影像套圈聲門範圍並計算面積的繁瑣。本研究以Canny邊緣檢測法與形態學分割方法來探討大鼠聲門面積曲線，研究結果發現本實驗的演算法可以成功的找出貼近大鼠聲門的邊緣，並且可以形成一封閉的輪廓線以取得大鼠聲門的面積，可以更進ㄧ步的分析，在速度上也是較傳統主動輪廓線模型要來的有效率。

Glottis servers a very major function in animals and its dynamic change is also a critical subject in physiological research. This research aims to analyze the image processing methods for glottis by using Matlab computer programming tools to estimate the glottal area and to plot the correspondent charts. We hope to simplify the manual processing of targeting glottal area in digital image and the calculation of area. The study employs Canny edge detection method and morphological segmentation method to make the curves of glottal area. The results show that the algorithm adopted by our experiments could successfully locate the edge of glottal area and form a closed-end contour to obtain the measure of glottal area. Not only would the method help further analyses, but they create higher efficiency than does the traditional active contour liner model.

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