A data embedding scheme for H.263 compatible video coding

نویسندگان

  • Jie Song
  • K. J. Ray Liu
چکیده

We propose a novel data embedding scheme for H.263 video coding. The proposed method, which can protect important information such as picture header and motion vector, is specifically suitable to noisy and bandwidth limited channels such as in wireless communications. The method can exactly recover the motion vectors of corrupted macroblocks, therefore has better performance than other error resilient methods.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A data embedded video coding scheme for error-prone channels

We propose a novel data embedding scheme for fractional-pixel based video coding algorithms such as H.263 and MPEG-2. By modifying the motion estimation procedure at fractional-pel precision, two bits data can be embedded in a motion vector (MV) for a inter-mode coded macroblock (MB). For half-pel precision motion estimation, the resulted bitstream is compatible with the current video coding st...

متن کامل

Steinbach, Wiegand, Girod: Using Multiple Global Motion Models for Improved Block-Based Video Coding, submitted to ICIP'99 USING MULTIPLE GLOBAL MOTION MODELS FOR IMPROVED BLOCK-BASED VIDEO CODING

We present a new motion representation and estimation scheme that leads to improved coding eeciency of block-based video coders like e.g. H.263. The proposed scheme is based on motion-compensated prediction from more than one reference frame. The reference pictures are warped versions of the previously decoded frame. AAne motion parameters are used as warping parameters approximating the motion...

متن کامل

Steinbach, Wiegand, Girod: Using Multiple Global Motion Models for Improved Block-Based Video Coding, in Proc. ICIP'99 USING MULTIPLE GLOBAL MOTION MODELS FOR IMPROVED BLOCK-BASED VIDEO CODING

A novel motion representation and estimation scheme is presented that leads to improved coding e ciency of blockbased video coders like, e.g., H.263. The proposed scheme is based on motion-compensated prediction from more than one reference frame. The reference pictures are warped or globally motion-compensated versions of the previous frame. A ne motion models are used as warping parameters ap...

متن کامل

Adaptive joint H.263-channel coding for memoryless binary channels

The main purpose of this paper is to show that once the video source coding is dependent on the channel characteristics, better performance can be achieved in terms of reconstructed video quality. Our study considers a fixed overall bit rate transmission of 64 kbit/s over error prone memoryless binary channels and the source coder is the ITU-T H.263 video standard. The variable H.263 source cod...

متن کامل

Improved H.263+ Rate Control via Variable Frame Rate Adjustment and Hybrid I-Frame Coding

A novel rate control algorithm consisting of two major components , i.e. a variable encoding frame rate method and a hybrid DCT/wavelet I-frame coding scheme, is proposed in this work for low bit rate video coding. Most existing rate control algorithms for low bit rate video focus on bit allocation at the macroblock level under a constant frame rate assumption. The proposed rate control algorit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999