Mode decision acceleration for H.264/AVC to SVC temporal video transcoding

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mode decision acceleration for H.264/AVC to SVC temporal video transcoding

This study presents a fast video transcoding architecture that overcomes the complexity of different coding structures between H.264/AVC and SVC. The proposed algorithms simplify the mode decision process in SVC owing to its heavy computations. Two scenarios namely transcoding with the same quantization parameter and bitrate reduction are considered. In the first scenario, SVC’s modes are deter...

متن کامل

Fast Mode Decision Algorithm for H.264/AVC-to-SVC Transcoding with Temporal Scalability

Scalable Video Coding (SVC) uses a notion of layers within the encoded bitstream for providing temporal, spatial and quality scalability, separately or combined. By truncating layers the bitstream can be adapted to devices with different characteristics and to varying network constraints. Since the majority of the existing video content is encoded using H.264/AVC without scalability, they canno...

متن کامل

Video Conferencing Oriented Low-Complexity Coarse-Level Mode-Mapping Based H.264/AVC to H.264/SVC Spatial Transcoding

As an extension of H.264/AVC, Scalable Video Coding (SVC) provides flexible adaptation to heterogeneous networks and end-users, which provides great scalability for applications such as video conferencing. However, due to the existence of legacy H.264/AVC-based systems, transcoding between AVC and SVC becomes necessary. Currently there are few works done on AVC-to-SVC spatial transcoding, and r...

متن کامل

Efficient Motion Vector Composition for H.264/AVC to SVC Video Transcoding

To reduce the transcoding overhead between H.264/AVC and Scalable Video Coding, this paper proposes an efficient motion vector composition algorithm combined with adaptive search range decision. In our proposal, the decoded motion vectors of H.264/AVC are reused to derive the motion vectors in compliance with the hierarchical B prediction structure of Scalable Video Coding. Furthermore, the dec...

متن کامل

Efficient Mode Decision for H.264 Down-sizing Video Transcoding Using Support Vector Machines

This paper presents an efficient mode decision scheme for down-sizing video transcoding in H.264 using support vector machines (SVMs). In order to reduce the high computational complexity of using conventional mode decision in the H.264 re-encoder, the proposed scheme uses SVMs to exploit the correlation between coding information extracted from the input high-resolution bit-stream and the codi...

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

ژورنال

عنوان ژورنال: EURASIP Journal on Advances in Signal Processing

سال: 2012

ISSN: 1687-6180

DOI: 10.1186/1687-6180-2012-204