Abstract
Nowadays band-limited terminals are very popular in wireless networking environments, with the result that frame-skip** technology is applied to reduce frame rate for video transmission. In this paper, we propose a dynamic frame-skip** transcoding scheme, where a frame being skipped or not is based on its activity. Whether a frame has relatively drastic motion activities or soft motion activities is evaluated among a certain number of its neighboring frames, which keeps the continuity of the transcoded sequence logically. To reduce the drift errors caused by locating overlap** blocks during the motion vector re-construction process in multi-frame skip**, we propose a new efficient overlap** block location method. A transcoder structure with the proposed dynamic frame-skip** scheme is also designed for hardware application. Simulation shows that the proposed dynamic frame-skip** scheme obtains lower complexity and higher performance, which is especially useful for real-time transcoding.
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References
**n J., Lin C.W., Sun M.T. (2005) Digital video transcoding. Proceedings of the IEEE 93(1): 84–97. doi:10.1109/JPROC.2004.839620
Vetro A., Christopoulos C., Sun H. (2003) Video transcoding architectures and techniques: An overview. IEEE Signal Processing Magazine 20(2): 18–29. doi:10.1109/MSP.2003.1184336
Kim J.W., Ji K.I., Kwon G.R., Lee J.S., Ko S.J. (2006) R-D optimized frame-skip** transcoder for low bit rate video transmission. IEEE Transactions on Consumer Electronics 1: 421–422
Fung K.T., Siu W.C. (2003) DCT-based video frame-skip** transcoder. Proceedings of the 2003(International Symposium on Circuits and Systems 2): 656–659
Fung, K. T., Siu, W. C., & Chan, Y. L. (2002, May). A dynamic frame-skip** video combiner for multipoint video conferencing. Paper presented at IEEE International Symposium on Circuits and Systems, Phoenix.
Hwang, J. N., & Wu, T. D. (1998, November). Motion vector re-estimation and dynamic frame-skip** for video transcoding. Paper presented at Conference Record of the Thirty-second Asilomar Conference on Signals, Systems & Computers, Pacific Grove, California.
Hwang, J. N., Wu, T. D., & Lin, C. W. (1998). Dynamic frame-skip** in video transcoding. In IEEE Second Workshop on Multimedia Signal Processing (pp. 616–621).
Fung K.T., Chan Y.L., Siu W.C. (2002) New architecture for dynamic frame-skip** transcoder. IEEE Transactions on Image Processing 11(8): 886–900. doi:10.1109/TIP.2002.800890
Zhang C.R., Zheng S.B., Chi Y., Wang F. (2005) A novel low-complexity and high-performance frame-skip** transcoder in DCT domain. IEEE Transactions on Consumer Electronics 51(4): 1306–1312. doi:10.1109/TCE.2005.1561860
Youn J., Sun M.T., Lin C.W. (1999) Motion vector refinement for high-performance transcoding. IEEE Transactions on Multimedia 1(1): 30–40. doi:10.1109/6046.748169
Chen M.J., Chu M.C., Pan C.W. (2002) Efficient motion-estimation algorithm for reduced frame-rate video transcoder. IEEE Transactions on Circuits and Systems for Video Technology 12(4): 269–275. doi:10.1109/76.999204
Fung K.T., Chan Y.L., Siu W.C. (2004) Low-complexity and high-quality frame-skip** transcoder for continuous presence multipoint video conferencing. IEEE Transactions on Multimedia 6(1): 31–46. doi:10.1109/TMM.2003.819761
Zheng, Y., & Zheng, S. B. (accepted). An efficient overlap** block selection method in multi-frame skip** transcoding. Journal of Circuits, Systems, and Computers.
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Zheng, Y., Zheng, S. A Frame-Activity-Based Dynamic Frame-Skip** Transcoder. Wireless Pers Commun 50, 257–274 (2009). https://doi.org/10.1007/s11277-008-9588-9
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DOI: https://doi.org/10.1007/s11277-008-9588-9