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A New Hypothesis and its Verification Explaining Exaggeration of Horizon Moon

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Image recognition is an essential theme to be studied for image reproduction with better satisfaction by observers. Study of visual illusion is one of approaches for clarifying recognition process in our eyes and brain. That is why we have chosen the moon illusion as a study theme of imaging technology. A full moon just above the horizon is often recognized as much larger than an elevated moon. The reason remains an open question in spite of having been studied since the ancient Greece period. Here we show a new explanation for this illusion.

We suggested a new explanation that miss-understanding of distance to the horizon moon causes inappropriate compensation of size recognition of the moon.

The validity of our new hypothesis was checked by our simulated observation of a moon. Exaggeration of a moon image was observed by our simulation to look at a moon through a deep corridor as a projected image on a screen. The deeper was the corridor, the larger moon was observed. The observed results were as our hypothesis had predicted; our hypothesis was agreed by our experimental results.
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Document Type: Research Article

Publication date: 01 January 2010

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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