傳統以照度計測量光源照度，不僅效率低、測量需占大空間、花費高，且容易有人工讀數上的錯誤，為了改善缺點，本研究發展視覺化照度量測技術，提升照度量測的效率及便利性。
以一般商用光源作為待測光源，將校正後的CCD影像感測器放置於量測平台並對待測光源所照射之平面擷取影像，將影像代入演算後，可得待測光源的面型影像強度，接著利用影像瓦片切割概念，對於影像強度變動較大的區域進行影像切割，將有效的提高精確度；同步採用照度感測器進行陣列式照度量測，對每一點的照度值與所擷取之影像強度值進行比對與擬合，透過線性迴歸分析及圖形處理，獲得視覺化2-D光源照度圖。至此，完成影像強度與照度值的轉換系統之建立，最後利用數種光源進行系統檢測、與實際照度值之誤差分析。
由實驗結果顯示，本研究所設計之視覺化照度量測系統，其計算照度值與量測照度值比較，其誤差低於10%，並可使量測照度的時間由數分鐘縮短到幾秒鐘，就可獲得視覺化2-D光源照度圖，最後將此結果運用於水下燈具的照度量測。

The visual technology of illuminance measurement is more efficient and convenient for underwater optical measurement, and it solves the problem of the single point limitation in traditional illuminance measurement.
The CCD image sensors are used for capturing picture of the light source illumination. The image intensity of the picture can be acquired by using image signal algorithm. Within the areas of similar image intensity, the tile pyramid cutting technology can process image segmentation to enhance the accuracy of the calculated illuminance values. After that, the pictures of light source illuminance can be produced by using linear regression analysis and graphic processing method.
The experiment result demonstrates that the error of the calculated illuminance value between using 2-D visual technique of illuminance measurement and the single point of traditional measured illuminance value is less than 10%. Furthermore, the time is shortened from minutes to seconds by using 2-D visual technique of illuminance measurement. This result is suitable for light source illumination measurement in the underwater environment.

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