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Temporal sampling and spatial coding for rate control of video transmission on mobile cameras

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5 Author(s)
Chien-Ting Kuo ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; I-Iming Chen ; Feng-Li Lian ; Yi-Chun Lin
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The paper proposes a receiver-based, rate and quality control mechanism. The main principle is to regulate encoding rate to guarantee the video quality is acceptable, especially in region of interest. Transmitting the encoded bit stream in multicast delivery not only improves bandwidth efficiency but also provides different quality for receivers with different length of bit stream. The overall mechanism can be separated into temporal sampling and spatial coding. Temporal sampling chooses the clearest frame to reduce the cost of encoding and transmitting blur or similar frame. On the spatial coding, embedded coding is performed to discard partial wavelet coefficients to provide multi-resolution of the frame. Experimental results show that the correctness of moving object detection in mobile cameras. Besides, the quality of received video and the bandwidth efficiency under different bandwidth limitation are also analyzed.

Published in:

Control Applications (CCA), 2010 IEEE International Conference on

Date of Conference:

8-10 Sept. 2010

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