Visibility of noise in natural images
Visibility of noise in natural images
复制标题
自然图像中噪声的可见性
DOI：
10.1117/12.526752
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
S. Süsstrunk
中科院分区：
文献类型：
--
作者：
S. Winkler;S. Süsstrunk
任何类型的刺激的可见度很大程度上取决于其显示的背景，这种属性通常称为掩蔽。迄今为止，已经进行了许多心理物理学实验，以了解类似掩蔽器和噪声对正弦曲线或 Gabor 目标的掩蔽，并且已经提出了各种掩蔽模型。然而，这些刺激是人为的，与自然场景内容相比相当简单。对于更复杂的掩蔽情况，基于此类实验的掩蔽模型可能不准确。我们将噪声本身的可见性作为目标进行研究，并使用自然图像作为掩蔽器。我们的目标是高斯白噪声和不同能量的带通滤波噪声。我们进行了心理物理学实验，以确定这些噪声目标对许多不同类型的图像内容的检测阈值，并在此展示结果。潜在的应用包括图像水印或质量评估。
The degree of visibility of any kind of stimulus is largely determined by the background on which it is shown, a property commonly known as masking. Many psychophysical experiments have been carried out to date to understand masking of sinusoids or Gabor targets by similar maskers and by noise, and a variety of masking models have been proposed. However, these stimuli are artificial and quite simplistic compared to natural scene content. Masking models based on such experiments may not be accurate for more complex cases of masking. We investigate the visibility of noise itself as a target and use natural images as the masker. Our targets are Gaussian white noise and band-pass filtered noise of varying energy. We conducted psychophysical experiments to determine the detection threshold of these noise targets on many different types of image content and present the results here. Potential applications include image watermarking or quality assessment.
DOI：
10.1364/josaa.9.001880
发表时间：
1992-11-01
影响因子：
1.9
作者：
GEGENFURTNER, KR;KIPER, DC
通讯作者：
KIPER, DC
影响因子：
--
作者：
LEGGE, GE;FOLEY, JM
通讯作者：
FOLEY, JM