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To calculate the inter-reflection between real objects and virtual ones in augmented reality, recovery of material for the real objects is necessary. In this paper, an approach is proposed to recover the material properties from a single high dynamic range image for a homogeneous object under complex illumination conditions. By the method, we first acquire(More)
In recent years, with the increasing amount of internet-connected devices, people tend to access the internet more frequently. User authentication protocol has become one of the most widely used techniques to construct communication between valid users and remote servers via a public network. In 2015, An proposed an enhanced smart card based remote user(More)
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