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Perceptual evaluation of color transformed multispectral imagery

机译：色彩变换的多光谱图像的感官评估

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摘要

Color remapping can give multispectral imagery a realistic appearance. We assessed the practical value of this technique in two observer experiments using monochrome intensified (II) and long-wave infrared (IR) imagery, and color daylight (REF) and fused multispectral (CF) imagery. First, we investigated the amount of detail observers perceive in a short timespan. REF and CF imagery yielded the highest precision and recall measures, while II and IR imagery yielded significantly lower values. This suggests that observers have more difficulty in extracting information from monochrome than from color imagery. Next, we measured eye fixations during free image exploration. Although the overall fixation behavior was similar across image modalities, the order in which certain details were fixated varied. Persons and vehicles were typically fixated first in REF, CF, and IR imagery, while they were fixated later in II imagery. In some cases, color remapping II imagery and fusion with IR imagery restored the fixation order of these image details. We conclude that color remapping can yield enhanced scene perception compared to conventional monochrome nighttime imagery, and may be deployed to tune multispectral image representations such that the resulting fixation behavior resembles the fixation behavior corresponding to daylight color imagery.
机译：颜色重新映射可以使多光谱图像具有逼真的外观。我们在两次使用单色增强（II）和长波红外（IR）图像以及彩色日光（REF）和融合多光谱（CF）图像的观察者实验中评估了该技术的实用价值。首先，我们调查了观察者在短时间内感知到的细节量。 REF和CF图像的精度和召回率最高，而II和IR图像的值则低得多。这表明观察者从单色中提取信息比从彩色图像中提取信息更加困难。接下来，我们在免费图像浏览过程中测量了眼睛注视。尽管整个固定方式在整个图像模态中都相似，但是固定特定细节的顺序却有所不同。人员和车辆通常先固定在REF，CF和IR影像中，然后再固定在II影像中。在某些情况下，颜色重新映射II图像以及与IR图像的融合可恢复这些图像细节的固定顺序。我们得出的结论是，与常规的单色夜间图像相比，颜色重新映射可以产生增强的场景感知，并且可以用于对多光谱图像表示进行调整，以使所得的注视行为类似于对应于日光彩色图像的注视行为。

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  • 来源
    《Optical engineering》 |2014年第4期|043101.1-043101.12|共12页
  • 作者

    Alexander Toet; Michael J. de Jong; Maarten A. Hogervorst; Ignace T. C. Hooge;

  • 作者单位

    Netherlands Organization for Applied Scientific Research (TNO), Kampweg 5, 3769 DE Soesterberg, The Netherlands,Utrecht University, Helmholtz Institute, Experimental Psychology, Utrecht, The Netherlands;

    Netherlands Organization for Applied Scientific Research (TNO), Kampweg 5, 3769 DE Soesterberg, The Netherlands;

    Netherlands Organization for Applied Scientific Research (TNO), Kampweg 5, 3769 DE Soesterberg, The Netherlands;

    Utrecht University, Helmholtz Institute, Experimental Psychology, Utrecht, The Netherlands;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    image fusion; color fusion; false color; color mapping; night vision; scene gist; gaze behavior;

    机译：图像融合颜色融合;假色颜色映射;夜间视力;场景要点注视行为;

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