A new application of exploiting digital watermarking techniques for annotating traffic surveillance videos is presented in this paper. The information of each vehicle collected from other sensors/sources will be embedded into the corresponding pixels in the recorded video to facilitate data management. The traffic scene captured by a video camera will be analyzed first and the individual vehicles are extracted and tracked by using Kalman filtering for effective watermarking. The scheme is integrated with H.264/AVC, which is assumed to be adopted by the visual surveillance system, to achieve an efficient implementation. The issues of payload, effective embedding/detection and rate/distortion are taken into account to fulfill the requirements of such an application. The experimental results demonstrate the feasibility of this potential system.
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