Abstract
This paper presents a novel spatial transcoding technique for H.264/AVC based video applications. With superior coding performance, H.264 will be used in a variety of multimedia applications. For various video applications, spatial transcoding techniques can facilitate compact storage of video sequences with specified resolution and bitstream format. Under demands, we can convert the archival bitstreams to another bitstream with different bitrates and different resolution before transmission. For H.264 video transmission that needs spatial resolution conversion, we propose a bottom-up motion vector re-estimation, rapid rate-distortion (R-D) optimized mode decision, and adaptive motion search range to speed up the spatial transcoding and retain visual quality of transcoded video. The results show that the fast transcoder has the R-D performance close to or better than R-D re-encoding algorithm, which has the highest complexity and best coding efficiency.
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References
Draft ITU-T recommendation and final draft international standard of joint video specification (ITU-T Rec. H.264/ISO/IEC 14 496-10 AVC), in Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, JVTG050 (2003)
Wiegand, T., Sullivan, G.J., Bjntegaard, G., Luthra, A.: Overview of the H.264/AVC video coding standard. IEEE Trans. Circuits and Systems for Video Technology 13(7), 560–576 (2003)
Seo, K., Kim, J.: Fast motion vector refinement for MPEG-1 to MPEG-4 transcoding with spatial down-sampling in DCT domain. In: Proc. ICIP 2001, October 2001, vol. 1, pp. 469–472 (2001)
Kim, N., Kim, Y., Kwon, G., Ko, S.: A fast DCT domain downsampling technique for video transcoder. In: Proc. ICCE 2003, June 2003, pp. 36–37 (2003)
Lee, Y., Lin, C.W., Chen, Y.W.: Computation reduction in cascaded DCTdomain video downscaling transcoding. In: Proc. ISCAS 2003, May 2003, vol. 4, pp. 860–863 (2003)
Xin, J., Sun, M.T., Choi, B.S., Chun, K.W.: An HDTV-to-SDTV spatial transcoder. IEEE Trans. Circuits and Systems for Video Technology 12(11), 998–1008 (2002)
Chen, M.J., Chu, M.C., Lo, S.Y.: Motion vector composition algorithm for spatial scalability in compressed video. IEEE Trans. Consumer Electronics 47(3), 319–325 (2001)
Shen, B., Sethi, I.K., Vasudev, B.: Adaptive motion-vector resampling for compressed video downscaling. IEEE Trans. Circuits and Systems for Video Technology 11(6), 929–936 (1999)
Sun, H., Tan, Y.-P.: Arbitrary downsizing video transcoding using H.26L standard. In: Proc. ICIP 2003, September 2003, pp. 173–176 (2003)
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© 2004 Springer-Verlag Berlin Heidelberg
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Li, CH., Wang, CN., Chiang, T. (2004). A Fast Downsizing Video Transcoder Based on H.264/AVC Standard. In: Aizawa, K., Nakamura, Y., Satoh, S. (eds) Advances in Multimedia Information Processing - PCM 2004. PCM 2004. Lecture Notes in Computer Science, vol 3333. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30543-9_28
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DOI: https://doi.org/10.1007/978-3-540-30543-9_28
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-23985-7
Online ISBN: 978-3-540-30543-9
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