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 18 of 18 for “"video communications"”.
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Video Communications over Dynamic Ad Hoc Networks
Video communications play a vital role in present and future wireless ad hoc networks. One of the key requirements for a successful deployment of multimedia applications in multihop wireless networks is the ability to provide an acceptable video quality, even under a highly dynamic and perhaps …
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Multiple Description Video Communications in Wireless Ad Hoc Networks
… regard to supporting content-rich multimedia communications (e.g., video) in such networks, in addition to simple data communications. The recent advances in multiple description (MD) video coding have made it highly suitable for multimedia applications in such networks. In this thesis, we …
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Adaptive multiple description mode selection for error resilient video communications
Streaming video applications must be able to withstand the potentially harsh conditions present on best-effort networks like the Internet, including variations in available bandwidth, packet losses, and delay. Multiple description (MD) video coding is one approach that can be used to reduce the …
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Low-bit-rate joint source-channel decoding aided wireless video communications
Detailed wireless video structures employing novel channel coding schemes for enhancing the achievable performance are designed. Although there is a plethora of papers on both robust video transmission, iterative detection and video telephony, there is a paucity of up-to-date research studies on …
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A Family of Hierarchical Encoding Techniques for Image and Video Communications
<p>As the demand for image and video transmission and interactive multimedia applications continues to grow, scalable image and video compression that has robust behavior over unreliable channels are of increasing interest. These desktop applications require scalability as a main feature due to its …
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Design and Implementation of Multipath Video Communications for Ad Hoc Networks
… in demand with regard to supporting content-rich video streaming in such networks. This is due to the fact that real-time video is far more substantive than simple data communication. This work involves implementing a Genetic Algorithm (GA) based multipath routing methodologies in a proactive …
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Design and Implementation of An Emulation Testbed for Video Communications in Ad Hoc Networks
Video communication is an important application in wireless ad hoc network environment. Although current off-the-shelf video communication software would work for ad hoc network operating under stable conditions (e.g., extremely low link and node failures), video communications for ad hoc network …
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A Low-Power Design of Motion Estimation Blocks for Low Bit-Rate Wireless Video Communications
… of the most important compression methods for video communications. We propose a low-power design of a motion estimation 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 …
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Video quality requirements for South African Sign Language communications over mobile phones.
This project aims to find the minimum video resolution and frame rate that supports intelligible cell phone based video communications in South African Sign Language.
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Error relilient video communications using high level M-QAM. Modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels.
… (QAM) transmission system suitable for video transmission is presented. The communication system is based on layered video coding and unequal error protection to make the video bitstream robust to channel errors. An implementation is described in which H.264 video is protected unequally …
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Advancing Video Communication: From WebRTC Quality Prediction to Green Applications
… and measuring user experience in real-time video communication applications. Therefore, this dissertation presents novel approaches for Quality of Experience (QoE) prediction in Web Real-Time Communication (WebRTC)-based applications through multimodal analysis of naturally available user …
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VLSI implementation of a massively parallel wavelet based zerotree coder for the intelligent pixel array
… on a variety of technologic fronts. Mobile video communications in particular encompasses a number of technical hurdles that generally steer technological advancements towards devices that are low in complexity, low in power usage yet perform the given task efficiently. Devices of this …
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Digital video transmission over wireless networks
… (ISDN) led to the standardisation of the first video codecs for interpersonal video communications, followed closely by the development of standards for the compression, storage and distribution of digital video in the PC environment, mainly targeted at CD-ROM storage. At the same time the …
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Dynamic Switching of GOP Configurations in High Efficiency Video Coding (HEVC) using Relational Databases for Multi-objective Optimization
… computational resources that require optimal video communications solutions. Optimal and dynamic management of video bitrate, quality and energy needs to take into account their inter-dependencies. With emerging network generations providing higher bandwidth rates, there is also a growing need …
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Audio and visual self-confrontation in psychotherapy
… to explore the issue, but to modify it by using video feedback as one of the treatments rather than having the client listen to a tape of a third party being counseled. This was done not only because of the advances in the field of video communications, but also because of perceived ethical …
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Low jitter phase-locked loop clock synthesis with wide locking range
… growing demand of wireless and high speed data communications has driven efforts to increase the levels of integration in many communications applications. Phase noise and timing jitter are important design considerations for these communications applications. The desire for highly complex …
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Analisis model bisnis TalkFusion: Studi kasus di komunitas TalkFusion Kota Malang
… Internet, produk utamanya adalah komunikasi video. TalkFusion datang ke Indonesia sekitar tahun 2012/2013, dan mulai menjalankan bisnisnya. TalkFusion booming di Indonesia sejak dua atau tiga tahun lalu. Tujuan dari penelitiasn ini adalah untuk menganalisis model bisnis yang digunakan …
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Mixed Media Richness and Computer-Mediated Communications
Mixed richness communications occur when a participant in a conversation receives a different media or combination of media than they transmit. Mixed richness communications occur in the workplace when technical, physiological or practical limitations prevent the use of the same media on both ends …