Digital image processing (2nd ed.)
Digital image processing (2nd ed.)
Binary picture thinning by an iterative parallel two-subcycle operation
Pattern Recognition
Secure Device Pairing based on a Visual Channel (Short Paper)
SP '06 Proceedings of the 2006 IEEE Symposium on Security and Privacy
Securing interactive sessions using mobile device through visual channel and visual inspection
Proceedings of the 26th Annual Computer Security Applications Conference
Visual highlighting on public displays
Proceedings of the 2012 International Symposium on Pervasive Displays
WebClip: a connector for ubiquitous physical input and output for touch screen devices
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
Using mobile devices to enable visual multiplexing on public displays: three approaches compared
Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia
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We present 'Screen codes' - a space- and time-efficient, aesthetically compelling method for transferring data from a display to a camera-equipped mobile device. Screen codes encode data as a grid of luminosity fluctuations within an arbitrary image, displayed on the video screen and decoded on a mobile device. These 'twinkling' images are a form of 'visual hyperlink', by which users can move dynamically generated content to and from their mobile devices. They help bridge the 'content divide' between mobile and fixed computing.