We've updated our privacy policy. Click here to review the details. Tap here to review the details.
Activate your 30 day free trial to unlock unlimited reading.
Activate your 30 day free trial to continue reading.
Download to read offline
This slide was presented at SIGGRAPH Asia 2017 "Emerging Technologies Talk: Magic of Light" session.
https://sa2017.siggraph.org/attendees/emerging-technologies?view=session&sid=45
Demonstration of the Unphotogenic Light: Protection from Secret Photography by Small Cameras
https://doi.org/10.1145/3132818.3132819
Unphotogenic light: high-speed projection method to prevent secret photography by small cameras
https://doi.org/10.1145/3102163.3102164
【Project page】
http://digitalnature.slis.tsukuba.ac.jp/2017/07/unphotogenic-light/
【Project movie】
https://www.youtube.com/watch?v=sCrAFTnqnkQ
【Presenter】
Ippei Suzuki (鈴木 一平)
University of Tsukuba, School of Informatics
College of Media Arts, Science and Technology
Digital Nature Group (Yoichi Ochiai)
http://1heisuzuki.tumblr.com/about
【Abstract】
We present a new method to protect projected content from secret photography using high-speed projection. In this study, we aim to realize a protectable projection method that allows people to observe content with their eyes but not record content with camera devices. To achieve this goal, we exploit the difference between the human vision system and the camera vision system. Notably, humans cannot recognize the high-speed changes of light. We were inspired by previous work that used these properties to show on-screen invisible markers. There are several studies that aim to present imperceptible on-screen markers using high-speed projection between the afterimage effect of human eyes and shutter speeds of digital cameras. From another point of view, these techniques show specific content only to the human eye while showing different content to a camera. Thus, we can project images that can be seen by human eyes whereas cameras only capture an incomplete frame. Therefore, this means the projected light is unphotogenic.
This slide was presented at SIGGRAPH Asia 2017 "Emerging Technologies Talk: Magic of Light" session.
https://sa2017.siggraph.org/attendees/emerging-technologies?view=session&sid=45
Demonstration of the Unphotogenic Light: Protection from Secret Photography by Small Cameras
https://doi.org/10.1145/3132818.3132819
Unphotogenic light: high-speed projection method to prevent secret photography by small cameras
https://doi.org/10.1145/3102163.3102164
【Project page】
http://digitalnature.slis.tsukuba.ac.jp/2017/07/unphotogenic-light/
【Project movie】
https://www.youtube.com/watch?v=sCrAFTnqnkQ
【Presenter】
Ippei Suzuki (鈴木 一平)
University of Tsukuba, School of Informatics
College of Media Arts, Science and Technology
Digital Nature Group (Yoichi Ochiai)
http://1heisuzuki.tumblr.com/about
【Abstract】
We present a new method to protect projected content from secret photography using high-speed projection. In this study, we aim to realize a protectable projection method that allows people to observe content with their eyes but not record content with camera devices. To achieve this goal, we exploit the difference between the human vision system and the camera vision system. Notably, humans cannot recognize the high-speed changes of light. We were inspired by previous work that used these properties to show on-screen invisible markers. There are several studies that aim to present imperceptible on-screen markers using high-speed projection between the afterimage effect of human eyes and shutter speeds of digital cameras. From another point of view, these techniques show specific content only to the human eye while showing different content to a camera. Thus, we can project images that can be seen by human eyes whereas cameras only capture an incomplete frame. Therefore, this means the projected light is unphotogenic.
You just clipped your first slide!
Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips.The SlideShare family just got bigger. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd.
Cancel anytime.Unlimited Reading
Learn faster and smarter from top experts
Unlimited Downloading
Download to take your learnings offline and on the go
You also get free access to Scribd!
Instant access to millions of ebooks, audiobooks, magazines, podcasts and more.
Read and listen offline with any device.
Free access to premium services like Tuneln, Mubi and more.
We’ve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data.
You can read the details below. By accepting, you agree to the updated privacy policy.
Thank you!