Local contrasts attract human attention to different areas of an image. Studies have shown that orientation, color, and intensity are some basic visual features which their contrasts attract our attention. Since these features are in different modalities, their contribution in the attraction of human attention is not easily comparable. In this study, we investigated the importance of these three features in the attraction of human attention in synthetic and natural images. Choosing 100% percent detectable contrast in each modality, we studied the competition between different features. Psychophysics results showed that, although single features can be detected easily in all trials, when features were presented simultaneously in a stimulus, orientation always attracts subject’s attention. In addition, computational results showed that orientation feature map is more informative about the pattern of human saccades in natural images. Finally, using optimization algorithms we quantified the impact of each feature map in construction of the final saliency map.

中文翻译：

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早期视觉特征在吸引人类注意力方面的内在重要性


局部对比度吸引人们对图像不同区域的注意力。研究表明，方向、颜色和强度是一些基本的视觉特征，它们的对比引起了我们的注意。由于这些特征具有不同的形态，因此它们对吸引人类注意力的贡献不容易比较。在这项研究中，我们研究了这三个特征在合成和自然图像中吸引人类注意力方面的重要性。在每种模式中选择 100% 可检测对比度，我们研究了不同特征之间的竞争。心理物理学结果表明，尽管在所有试验中都可以轻松检测到单一特征，但当刺激中同时呈现特征时，方向总是会吸引受试者的注意力。此外，计算结果表明，方向特征图更能提供自然图像中人类眼跳模式的信息。最后，使用优化算法，我们量化了每个特征图在构建最终显着性图时的影响。