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Paper Abstract and Keywords
Presentation 2010-12-15 11:30
The method of generating an invisible image with high-frequency image for smart phone application
Kazuma Kitamura, Takakuni Douseki (Rits Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) We have developed an invisible image for smart phones that consists of semitransparent high-frequency blocks. High-frequency blocks are also placed around the periphery of the code to enable the code to be embedded in several places. Two key technologies were devised to implement this idea. One is semitransparent high-frequency blocks composed of bright and dark elements in a checkerboard pattern. The other is a method of reading the code that employs edge detection to extract the code from a photograph of an image in which the code is embedded. To verify the effectiveness of our invisible code, we estimated the reading accuracy for code embedded in three common types of images. The results show the accuracy to be 100% for all the images at distances of 7-11 cm.
Keyword (in Japanese) (See Japanese page) 
(in English) invisible image / high-frequency image / printable / smart phone / sensor network / / /  
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Conference Information
Committee HCGSYMPO  
Conference Date 2010-12-15 - 2010-12-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyazaki Seagai resort 
Topics (in Japanese) (See Japanese page) 
Topics (in English) HCG Symposium 2010 
Paper Information
Registration To HCGSYMPO 
Conference Code 2010-12-HCGSYMPO 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The method of generating an invisible image with high-frequency image for smart phone application 
Sub Title (in English)  
Keyword(1) invisible image  
Keyword(2) high-frequency image  
Keyword(3) printable  
Keyword(4) smart phone  
Keyword(5) sensor network  
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1st Author's Name Kazuma Kitamura  
1st Author's Affiliation Ritsumeikan University (Rits Univ.)
2nd Author's Name Takakuni Douseki  
2nd Author's Affiliation Ritsumeikan University (Rits Univ.)
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Speaker Author-1 
Date Time 2010-12-15 11:30:00 
Presentation Time 30 minutes 
Registration for HCGSYMPO 
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