http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : ( Sheikh Ziauddin ) (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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An Image-Based CAPTCHA Scheme Exploiting Human Appearance Characteristics
( Sajida Kalsoom ),( Sheikh Ziauddin ),( Abdul Rehman Abbasi ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.2
CAPTCHAs are automated tests that are there to avoid misuse of computing and information resources by bots. Typical text-based CAPTCHAs are proven to be vulnerable against malicious automated programs. In this paper, we present an image-based CAPTCHA scheme using easily identifiable human appearance characteristics that overcomes the weaknesses of current text-based schemes. We propose and evaluate two applications for our scheme involving 25 participants. Both applications use same characteristics but different classes against those characteristics. Application 1 is optimized for security while application 2 is optimized for usability. Experimental evaluation shows promising results having 83% human success rate with Application 2 as compared to 62% with Application 1.
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Interactive Slide Navigation: An Approach for Manipulating Slides with Augmented Reality Markers
Muhammad Tahir,Muhammad Arshad Awan,Aniqa Hafeez,Mohsin Yazdanie,Sheikh Ziauddin 한국산학기술학회 2012 SmartCR Vol.2 No.2
The use of PowerPoint slides is an interactive way of communication in a classroom environment. To make it more effective, different techniques for the manipulation, annotation, and navigation of slides have been utilized. We presented the use of Augmented Reality technology to manipulate, annotate and navigate through PowerPoint slides. We used Augmented Reality marker recognition techniques by employing an Augmented Reality ToolKit. We performed tests by analyzing Augmented Reality marker IDs and their translational and rotational gestures. We used 1) simple flat Augmented Reality markers, 2) finger Augmented Reality markers, 3) cube markers, 4) illuminated markers, and 5) retro-reflective markers to manipulate slides. The results indicate that finger Augmented Reality markers are easy to handle and perform better than other types of markers. Cube markers are especially helpful in performing rotational gestures, while illuminated and retro-reflective markers provide moderate results in comparison with simple flat markers. As far as we know, we are the first to use Augmented Reality technology for handling slides and providing the presenter with distant access to the presentation.
ScienceON
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