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首页> 外文期刊>Journal of Imaging Science and Technology >Evaluation for Faithful Reproduction of Star Fields in a Planetarium
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Evaluation for Faithful Reproduction of Star Fields in a Planetarium

机译：忠实再现天文馆中星空的评估

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In order to investigate factors necessary for reproducing actual star images in a planetarium, for this article, the authors conducted a psychophysical experiment using projection stimuli generated by changing three parameters of the stars: color, luminance, and size. A reference projection pattern was designed to be faithful to the actual starry sky perceptually (rather than physically) by an experienced group with abundant astronomical observation experience. A reproduction system was constructed to project ten types of star image patterns to a planetarium dome using different parameters. Then, evaluation experiments with twenty observers were conducted. The results of the experiment indicate that the intensity of the stars was sensitive to the fidelity of the reproduction, and in either case of change (whether the star was bright or dark compared to the reference pattern), the result was a loss of fidelity. In addition, although the fidelity was improved when the size of the projected star was small, for stars that were projected larger than the reference pattern, the result was remarkably negative. As for differences in color, the evaluation results suggested that the tolerance to loss of fidelity was wide. (C) 2017 Society for Imaging Science and Technology.
机译：为了研究在天象馆中再现实际恒星图像所必需的因素，对于本文，作者使用通过改变恒星的三个参数（颜色，亮度和大小）生成的投影刺激进行了心理物理实验。由具有丰富天文观测经验的经验丰富的团队设计了一种参考投影模式，使其在感知上（而不是在物理上）忠实于实际的星空。构建了一个复制系统，以使用不同的参数将十种类型的星形图像图案投射到天文馆圆顶上。然后，进行了二十名观察员的评价实验。实验结果表明，恒星的强度对复制的保真度敏感，在两种情况下（与参考图案相比，恒星是亮还是暗），结果都是保真度的损失。另外，尽管当投影的恒星的尺寸较小时保真度得到改善，但是对于投影大于参考图案的恒星，结果明显为负。至于颜色的差异，评估结果表明对保真度损失的容忍度很宽。 （C）2017年影像科学与技术学会。

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