基于圖像熵的數(shù)字化核電站人機界面復(fù)雜度快速評價
發(fā)布時間:2018-04-08 21:48
本文選題:核電站 切入點:人機界面 出處:《原子能科學(xué)技術(shù)》2014年12期
【摘要】:計算機畫面是數(shù)字化核電站人機界面的基本組成元素,畫面的復(fù)雜程度會影響操縱員對核電站情況的掌握。為對單幅畫面進行快速有效的復(fù)雜度定量評價,本文提出了一種基于圖像熵的定量評價方法。首先對畫面做圖像化處理,并轉(zhuǎn)化為灰度圖,然后利用圖像熵的定義,計算整個畫面的熵值,并將其作為畫面復(fù)雜度的度量。實驗結(jié)果表明,圖像熵作為畫面復(fù)雜度的定量評價指標(biāo),與人工評價結(jié)果具有一致性,能反映人對畫面復(fù)雜度的綜合感受。此方法可應(yīng)用于實際工程設(shè)計,特別是在設(shè)計初期不具備實驗評價和專家評價的條件時,用來對畫面進行復(fù)雜度測量,可避免畫面過度復(fù)雜、改善人機交互。
[Abstract]:Computer picture is the basic component of the human-machine interface in digital nuclear power station. The complexity of the picture will affect the operator's grasp of the nuclear power station.In order to evaluate the complexity of a single picture quickly and efficiently, a quantitative evaluation method based on image entropy is proposed in this paper.Firstly, the image is processed and transformed into gray image, then the entropy of the whole picture is calculated by using the definition of image entropy, and it is regarded as a measure of picture complexity.The experimental results show that the image entropy, as a quantitative evaluation index of picture complexity, is consistent with the result of artificial evaluation, and can reflect the comprehensive perception of picture complexity.This method can be applied to practical engineering design, especially when the conditions of experimental and expert evaluation are not available at the beginning of the design, and can be used to measure the complexity of the picture, which can avoid the excessive complexity of the picture and improve the human-computer interaction.
【作者單位】: 清華大學(xué)核能與新能源技術(shù)研究院先進反應(yīng)堆工程與安全教育部重點實驗室;
【基金】:國家科技重大專項資助項目(ZX06901) 清華大學(xué)自主科研計劃資助項目
【分類號】:TM623
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