Тип публикации: статья из журнала
Год издания: 2011
Идентификатор DOI: 10.1364/JOT.78.000817
Ключевые слова: Digital filtering, Filtered images, Half-width, High frequency, Input image, Low-frequency components, Pass bands, Test images, Visual illusions, Visual systems, Wavelet filtering, Engineering, Molecular physics, Spectroscopy
Аннотация: Various images of the Muller-Lyer figures have been obtained by digital filtering. The filtered images contained a definite spatial-frequency spectrum, predominantly low, medium, or high frequencies. The filtering was carried out by convolution of the images with wavelets that are the difference of two Gaussoids with half-width differing by a factor of 2. The equalization threshold of the Muller-Lyer figures was measured by presenting images subjected to digital processing and without processing, thereby measuring the threshold for bringing about the illusion. The Muller-Lyer illusion was caused by all the stimuli, but it was reliably larger in response to the presentation of the image with a predominantly low-frequency component. The modelling of the Muller-Lyer illusion must take into account the spatial-frequency spectrum of the test image and the characteristics of the pass-band filtering in the spatial-frequency channels of not only the primary but also the higher divisions of the visual system, which construct the envelope based on the primary filtering of the image. (C) 2011 Optical Society of America.
Журнал: JOURNAL OF OPTICAL TECHNOLOGY
Выпуск журнала: Vol. 78, Is. 12
Номера страниц: 817-820
ISSN журнала: 10709762
Место издания: WASHINGTON
Издатель: OPTICAL SOC AMER
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