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We envision a conference room of the future where depth sensing systems are able to capture the 3D position and pose of users, and enable users to interact with digital media and contents being shown on immersive displays. The key technical barrier is that current depth sensing systems are noisy, inaccurate, and unreliable. It is well understood that passive stereo fails in non-textured, featureless...
In this paper, we intended to seek a method to retrieval media files on personal mobile devices efficiently. We aimed at finding media-generated event accurately to provide support for annotation and retrieval of multimedia files. In this paper, the event-cluster positioning is realized by spatio-temporal clustering. Time clustering uses a method that maps the time difference to image, and then finds...
Copyright protection of digital media is still a challenge today. In this paper we proposed a robust watermarking method for embedding copyright information in spatial domain of the color image. Each byte of the data has been encrypted with a secret key and the data bits has been transposed on the cover media by using the well known MD5 Hash function with the combination of the secret key, and thus...
In digital rights management (DRM) systems, digital media is often distributed by multiple levels of distributors in a compressed and encrypted format. The distributors in the chain face the problem of embedding their watermark in compressed, encrypted domain for copyright violation detection purpose. In this paper, we propose a robust watermark embedding technique for JPEG2000 compressed and encrypted...
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