Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/62576
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dc.contributor.authorToh, Esther Sin Rong
dc.date.accessioned2015-04-21T03:50:10Z
dc.date.available2015-04-21T03:50:10Z
dc.date.copyright2015en_US
dc.date.issued2015
dc.identifier.urihttp://hdl.handle.net/10356/62576
dc.description.abstractThis project aims to provide a new way of sending data such as images and text files through mobile devices without existing technologies such as WiFi, Bluetooth and Cellular Data Network. This application, ColorQR aims to send text files and images through the use of colors and camera and enable QR to send more data and at a higher throughput. Data is encoded into Red, Blue and Green colors QR code and are multiplexed to form multiple 1 multi-color QR code that will be flashed on the device screen. Then a camera will be used to video record the flashing images and convert the images into RGB channels using grayscale conversion. Thus 1 image will be split to 3 black and white QR codes. Finally, it is able to decode the image and text file that are sent. Several testing were done to find the decoding speed and accuracy among 4 devices and results show that LG Nexus 4 performs the best and has a decoding accuracy of 100% when sending text files. Different transmission rates are also experimented to find out if it will affect the decoding accuracy and results show that for Samsung devices, the faster the transmission rate, the lower decoding accuracy it gets. Encoding speed test was performed as well.en_US
dc.format.extent52 p.en_US
dc.language.isoenen_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Engineering::Computer science and engineering::Computing methodologies::Image processing and computer visionen_US
dc.titleNon-radio communication using mobile devices (screen-camera communication)en_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.supervisorGoh Weihan
dc.contributor.supervisorYeo Chai Kiaten_US
dc.contributor.schoolSchool of Computer Engineeringen_US
dc.description.degreeBachelor of Engineering (Computer Science)en_US
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Appears in Collections:SCSE Student Reports (FYP/IA/PA/PI)
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