原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
12期
2370-2374
,共5页
核电站%人机界面%图像熵%定量评价
覈電站%人機界麵%圖像熵%定量評價
핵전참%인궤계면%도상적%정량평개
nuclear power plant%human-machine interface%image entropy%quantitative assessment
计算机画面是数字化核电站人机界面的基本组成元素,画面的复杂程度会影响操纵员对核电站情况的掌握。为对单幅画面进行快速有效的复杂度定量评价,本文提出了一种基于图像熵的定量评价方法。首先对画面做图像化处理,并转化为灰度图,然后利用图像熵的定义,计算整个画面的熵值,并将其作为画面复杂度的度量。实验结果表明,图像熵作为画面复杂度的定量评价指标,与人工评价结果具有一致性,能反映人对画面复杂度的综合感受。此方法可应用于实际工程设计,特别是在设计初期不具备实验评价和专家评价的条件时,用来对画面进行复杂度测量,可避免画面过度复杂、改善人机交互。
計算機畫麵是數字化覈電站人機界麵的基本組成元素,畫麵的複雜程度會影響操縱員對覈電站情況的掌握。為對單幅畫麵進行快速有效的複雜度定量評價,本文提齣瞭一種基于圖像熵的定量評價方法。首先對畫麵做圖像化處理,併轉化為灰度圖,然後利用圖像熵的定義,計算整箇畫麵的熵值,併將其作為畫麵複雜度的度量。實驗結果錶明,圖像熵作為畫麵複雜度的定量評價指標,與人工評價結果具有一緻性,能反映人對畫麵複雜度的綜閤感受。此方法可應用于實際工程設計,特彆是在設計初期不具備實驗評價和專傢評價的條件時,用來對畫麵進行複雜度測量,可避免畫麵過度複雜、改善人機交互。
계산궤화면시수자화핵전참인궤계면적기본조성원소,화면적복잡정도회영향조종원대핵전참정황적장악。위대단폭화면진행쾌속유효적복잡도정량평개,본문제출료일충기우도상적적정량평개방법。수선대화면주도상화처리,병전화위회도도,연후이용도상적적정의,계산정개화면적적치,병장기작위화면복잡도적도량。실험결과표명,도상적작위화면복잡도적정량평개지표,여인공평개결과구유일치성,능반영인대화면복잡도적종합감수。차방법가응용우실제공정설계,특별시재설계초기불구비실험평개화전가평개적조건시,용래대화면진행복잡도측량,가피면화면과도복잡、개선인궤교호。
Computerized displays are the basic elements of the human‐machine interface in the digital nuclear power plant ,of which the complexity will impact the situation awareness of operators .In order to make a fast and effective quantitative assessment of complexity of a display ,a method based on the image entropy was presented . The human‐machine interface was converted into a gray scale image ,and then the entropy of the display was calculated using the image entropy formula as a measurement of the complexity . T he experiment result show s that the complexity measurement of the display based on the image entropy is according with the assessment result by human being ,and can reflect the cognitive feeling of the operator .This method can be used in practice ,especially at the early stage of the design ,w here the validation by experiment or by expert is not ready .It can be used to measure the complexity of a display to avoid a too complex design and to improve the human‐machine interaction .