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Paper Abstract and Keywords
Presentation 2022-03-04 13:05
[Invited Talk] Recovery of the True Appearance from Depth-Exaggerated Images
Kokichi Sugihara (Meiji Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) It is widely known among photographers that the size of a room is exaggerated in an image taken using a wide-angle lens; such pictures are commonly found in hotel-reservation web sites. The present paper points out that the size exaggeration is a kind of optical illusion caused by an inappropriate viewpoint from which the image is seen, and develops a method for removing the illusion and thus recovering the true appearance of the room. This method requires only a single imae together with the lens center at which the image is taken. From those data, we can generate images that would be obtained if we stand at the same point as the camera and see around the original scene, changing the view direction. The validity of the method is shown by examples. Possible applications to size-exaggerated images posted in web sites are also discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical Illusion / Depth / Wide-angle Lens / Viewpoint / Room Size / / /  
Reference Info. ITE Tech. Rep., vol. 46, no. 8, IDY2022-12, pp. 1-5, March 2022.
Paper # IDY2022-12 
Date of Issue 2022-02-25 (IDY) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee IDY SID-JC  
Conference Date 2022-03-04 - 2022-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) online 
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To IDY 
Conference Code 2022-03-IDY-JC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Recovery of the True Appearance from Depth-Exaggerated Images 
Sub Title (in English)  
Keyword(1) Optical Illusion  
Keyword(2) Depth  
Keyword(3) Wide-angle Lens  
Keyword(4) Viewpoint  
Keyword(5) Room Size  
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1st Author's Name Kokichi Sugihara  
1st Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2022-03-04 13:05:00 
Presentation Time 25 minutes 
Registration for IDY 
Paper # IDY2022-12 
Volume (vol) vol.46 
Number (no) no.8 
Page pp.1-5 
#Pages
Date of Issue 2022-02-25 (IDY) 


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