Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"H.263"”.
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On the Low Power Design of DCT and IDCT for Low Bit Rate Video Codecs
… bit rate and low power dissipation. The ITU-T H.263 video codec standard is suitable for low bit rate wireless video systems, however it is computationally intensive. Some of the most computationally intensive operations in H.263 are the Discrete Cosine Transform (DCT) and the Inverse Discrete …
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Fast implementation of integer transforms in H.264/AVC video encoders
… video standards such as the H.261, H.262 and H.263 use Discrete Cosine Transform (DCT).
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Arquitectura versátil para la codificación de vídeo multi-estándar: aportaciones metodológicas para el diseño de sistemas reutilizables y sistemas en un chip
… de codificación híbrido como la Recomendación H.263 o los estándares ISO/IEC 13818-2 (MPEG-2) e ISO/IEC 14496-2 (MPEG-4). Con el doble objetivo de validar la arquitectura propuesta y experimentar con las metodologías de diseño de sistemas en un chip se diseña una realización de la mencionada …
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A Low-Power Design of Motion Estimation Blocks for Low Bit-Rate Wireless Video Communications
… block for a low bit-rate video codec standard H.263. Since the motion estimation is computationally intensive to result in large power consumption, a low-power design is essential for portable or mobile systems. Our block employs the Four-Step Search (4SS) method as its primary algorithm. The …
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Analog parallel processor solutions for video encoding
… terminals are defined by either the MPEG-4/H.263 or H.264 video standard. All of these standards are based on the block-based hybrid approach. As block-based motion estimation (ME) is responsible for most of the power consumption of such hybrid video encoders, this thesis deals mostly with …
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Design and Implementation of An Emulation Testbed for Video Communications in Ad Hoc Networks
… different network conditions; 3. A modified H.263+ video codec that employs Unequal Error Protection (UEP) approach to generate MD video; 4. Implementation of three experiments that • compared the GA-based routing with existing technologies (NetMeeting video conferencing plus AODV routing); • …