مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

480
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

2,204
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

AN EFFICIENT CONTENT-BASED VIDEO CODING METHOD FOR DISTANCE LEARNING APPLICATIONS

Pages

  85-103

Abstract

 This paper presents a novel method for cooperative educational dissemination systems. Taking into consideration the inherent characteristics of DISTANCE LEARNING video streams (existence of a few slow moving objects in a classroom), we have proposed a novel CONTENT-BASED VIDEO CODING method that is very efficient at low bitrate channels. On the encoding side, we have applied a background subtraction algorithm for MOTION SEGMENTATION using a novel statistical background modeling approach. At each frame, the moving objects are extrapolated with a rectangular model and tracked frame by frame (which forms the only data needed to be sent over the channel). On the decoding side, we have used a new error concealment algorithm (based on edge information of frames) to eliminate probable channel errors in the received data. Moreover, a new fuzzy scene modeling algorithm is proposed that adaptively computes the alpha blending coefficient (used in dynamic video MOSAICING) and reconstructs the original video scene from partially overlapped frames. Our experiments show that the proposed coding system is very efficient in real-time video webcasting with approximately 24 fps for CIF formatted sequences (and at a minimum of 13 fps transmission for 720 x 576 frame sizes). Applying our proposed system has reduced the required bitrate of H.264 and MPEG-4 coding standards by about 2.5% to 8%, respectively, with almost the same, or even better, reconstructed video qualities.

Multimedia

  • No record.
  • Cites

  • No record.
  • References

  • No record.
  • Cite

    APA: Copy

    LOTFI, T., BAGHERI, M., DARABI, A.A., & KASAEI, S.. (2009). AN EFFICIENT CONTENT-BASED VIDEO CODING METHOD FOR DISTANCE LEARNING APPLICATIONS. SCIENTIA IRANICA, 16(2 (TRANSACTIONS D: COMPUTER SCIENCE AND ENGINEERING)), 85-103. SID. https://sid.ir/paper/289862/en

    Vancouver: Copy

    LOTFI T., BAGHERI M., DARABI A.A., KASAEI S.. AN EFFICIENT CONTENT-BASED VIDEO CODING METHOD FOR DISTANCE LEARNING APPLICATIONS. SCIENTIA IRANICA[Internet]. 2009;16(2 (TRANSACTIONS D: COMPUTER SCIENCE AND ENGINEERING)):85-103. Available from: https://sid.ir/paper/289862/en

    IEEE: Copy

    T. LOTFI, M. BAGHERI, A.A. DARABI, and S. KASAEI, “AN EFFICIENT CONTENT-BASED VIDEO CODING METHOD FOR DISTANCE LEARNING APPLICATIONS,” SCIENTIA IRANICA, vol. 16, no. 2 (TRANSACTIONS D: COMPUTER SCIENCE AND ENGINEERING), pp. 85–103, 2009, [Online]. Available: https://sid.ir/paper/289862/en

    Related Journal Papers

  • No record.
  • Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops






    Move to top
    telegram sharing button
    whatsapp sharing button
    linkedin sharing button
    twitter sharing button
    email sharing button
    email sharing button
    email sharing button
    sharethis sharing button