Architectures of Incorporating Mpeg-4 Avc into Three-dimensional Wavelet Video Coding

نویسندگان

  • Xiangyang Ji
  • Jizheng Xu
  • Debin Zhao
  • Feng Wu
چکیده

3D wavelet video coding provides an elegant fulldimensional solution for scalable video coding. However, due to the Motion-Compensated Temporal Filtering (MCTF) with open-loop structure and no good rate distortion optimization trade-off between the texture coding and overhead coding of the corresponding mode and motion vectors within narrow bandwidth, its performance is unsatisfactory at low bit-rates. On the other hand, video data below a certain spatial, temporal or SNR resolution are not required in most applications of scalable video coding. The introduction of a base layer in three-dimensional scalable video coding scheme can provide a lot of advantages such as close-loop temporal prediction, in-loop filter and rate-distortion optimization without any constraint occurred in pure 3D wavelet codec and also compatibility with existing video compression standards. This paper presents the architectures about how to efficiently incorporate base layer codec MPEG-4 AVC into 3D wavelet video coding.

برای دانلود 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

Architectures of Incorporating Mpeg-4 Avc into Three-dimensional Subband Video Coding

3D subband video coding provides an elegant fulldimensional solution for scalable video coding. However, due to the Motion-Compensated Temporal Filtering (MCTF) with open-loop structure and no good rate distortion optimization trade-off between the texture coding and overhead coding of the corresponding mode and motion vectors within narrow bandwidth, its performance is unsatisfactory at low bi...

متن کامل

Low complexity bit-plane entropy coding for 3-D DWT based video compression

This paper is dedicated to entropy coding for scalable video compression based on three-dimensional discrete wavelet transform (3-D DWT). A new simple bit-plane entropy coding of wavelet subband matrices is proposed. Practical results show that 3-D DWT video codec with proposed entropy coding allows to increase the encoding speed 2-3 times for the same quality level in comparison with x.264 cod...

متن کامل

Very Low Bit-Rate Video Coding by Combining H.264/AVC Standard and 2-D Discrete Wavelet Transform

In this paper, we propose a new method for very low bit-rate video coding that combines H.264/AVC standard and two-dimensional discrete wavelet transform. In this method, first a two dimensional wavelet transform is applied on each video frame independently to extract the low frequency components for each frame and then the low frequency parts of all frames are coded using H.264/AVC codec. On t...

متن کامل

A Hybrid Transformation Technique for Advanced Video Coding

A Video encoder performs video data compression by having combination of three main modules such as Motion estimation and compensation, Transformation, and Entropy encoding. Among these three modules, transformation is the module of removing the spatial redundancy that exists in the spatial domain of video sequence. Discrete Cosine Transformation (DCT) is the defacto transformation method in ex...

متن کامل

Advances of MPEG Scalable Video Coding Standard

To support clients with diverse capabilities, the MPEG committee is defining a novel scalable video coding (SVC) framework that can simultaneously support multiple spatial, temporal and SNR resolutions under the constraints of low complexity and low delay. To fulfill the requirements, two major approaches have been considered as the potential technologies. One is the wavelet-based scheme and th...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004