液晶顯示器呈現動態畫面品質在色彩偏移分析之視覺評量方法研究

近年來，液晶顯示器LCD的發展越來越具有國際競爭力，我國目前也致力於創新性技術的研發。由於LCD顯示器屬於新興產業，對於影像之品質評估模式仍屬於發展階段，尤其以往的評估方式較偏向機器量測的物理量數據，反而忽略人眼視覺評量的心理量機制，因此，如何建立一套標準化，並符合人眼與機器評量的影像品質評估模式，是一項非常重要的研究議題。本研究鑒於動態畫面品質評估模式建立與應用之迫切性，導入動態畫面之視覺評估，並以色彩偏移(Color-shift)分析測試為主要架構，藉由高速攝影取像技術與心理之視覺評估影像參數同時進行驗證測試。研究目的：(1)驗證測試動態畫面之視覺評量的方法，並提出有關動態畫面品質之視覺評量模式及改良建議。(2)比對視覺評量與高速攝影取像兩者量測之結果，藉以驗證視覺評量方法的信度與效度。(3)提出一套呈現動態畫面品質影響觀者之視覺評量方法，作為國內產業或設計界應用之參考。

關鍵字

動態影像；色彩偏移；視覺評估

並列摘要

In recent years, the development of liquid crystal display (LCD) in the international market is getting more competitive. The government is also devoted to the study of the innovative technique. Because LCD is a sunrise industry, the image quality evaluation method has not been established. Therefore, it is an important and emerging issue how to build up a standard method for image quality evaluation. This study aims to evaluate the display quality of dynamic pictures on LCD by using the Color-shift analysis and test module. The image picking technique from high speed camera and visualized evaluation data from the mentality were applied for the analysis. The purposes are triple fold: (1) to set up a method for color-shift analysis and the visualized evaluation of moving image quality, (2) to compare and contrast the results of visualized evaluation from moving image quality testing module with the evaluated data from the high speed camera, (3) to build the visualized evaluation method and operational instructions for moving picture quality on LCD. Results from the study can serve as references for the image quality evaluation in domestic industry.