Κανονική συνθήκη ορισμού, λίστα ορισμών, διεύθυνση, σχεδίαση και υλοποίηση αρχιτεκτονικής υψηλής απόδοσης για τους αλγόριθμους μετασχηματισμού και κβαντοποίησης του Η.264
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Autore
Owaida, MuhsenSupervisor name
Σταμούλης, Γεώργιος
Data
2007Language
en
Access
free
Abstract
Efficient digital video coding techniques are increasingly gaining
importance due to the widespread of low bit rate video streaming applications
(like videotelephony and videoconferencing). This raises the need for an
industry standard for compressed video representation with substantially
increased coding efficiency and enhanced robustness to network environments.
In 2001, the Joint Video Team (JVT) was formed to represent the
cooperation between the ITU-T Video Coding Expert Group (VCEG) and the
ISO/IEC Moving Picture Expert Group (MPEG) aiming for the development of
a new Standard. The JVT aim was to finalize the H.26L proposal and convert it
into an international standard (H.264/MPEG-4 Part 10) published by both
ISO/IEC and ITU-T.
H.264 provides similar functionality to earlier standards such as
H.263+and MPEG-4 Visual (Simple Profile) but with significantly better
compression performance and improved support for reliable transmission. It
does not use the traditional 8^8 DCT transform as the basic transform, instead
it suggests 4x4 DCT-based transform that can be implemented only using
integer addition and shift units and avoids use of multiplication.
In this project, a hardware prototype is designed for the H.264 supported
quantization and variant types of supported transforms (core transform, 2x2
and 4x4 hadmard transforms). Also the inverse transform and quantization path
is considered. The architecture is prototyped and simulated using ModelSim
6.1®. It is synthesized using Synopsys Design Compiler®.
Academic publisher
Πανεπιστήμιο Θεσσαλίας. Πολυτεχνική Σχολή. Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών.