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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Ultrasound image processing and transmission for medical diagnosis /

Zheng, Xing. January 2003 (has links)
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 66-69). Also available in electronic version. Access restricted to campus users.
82

Power control for video transmission over Wireless mesh networks.

Ochieng, Ojwang Dan. January 2011 (has links)
M. Tech. Electrical Engineering. / Proposes a power control algorithm for video transmission over WMNs. The proposed algorithm is implemented and simulation results compared with those of conventional IEEE 802.11b network.
83

Robust image transmission with rate-compatible low-density parity-check codes over noisy channels /

Pan, Xiang, January 1900 (has links)
Thesis (M. App. Sc.)--Carleton University, 2005. / Includes bibliographical references (p. 85-89). Also available in electronic format on the Internet.
84

DYNAMAC media distribution system /

Chong, Luis A. Caceres. January 2007 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references.
85

Meios e modos da composição on-line = um processo poético da busca / Ways and means of composition online : a case of poetic search

Silva, Edilson Ferreira da 17 August 2018 (has links)
Orientador: Ernesto Giovanni Boccara / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-17T08:23:53Z (GMT). No. of bitstreams: 1 Silva_EdilsonFerreirada_M.pdf: 3059702 bytes, checksum: 791b8dbd438482eaae4198fc6e9570db (MD5) Previous issue date: 2010 / Resumo: O presente trabalho propõe a reflexão dos meios e modos de composição utilizando a rede e a manipulação de imagens on-line, em um conjunto de procedimentos de captura por meio digital e aplicações decorrentes de uma pesquisa na busca de uma produção plástica contemporânea. Para esta proposta realizo um recorte na minha produção artística, observo uma série de trabalhos que movem inquietações conceituais e estão direcionadas para a projeção de imagens das diversas faces. Objetivando representar as diferentes humanidades que integram a paisagem urbana. Esta observação dos lugares apresenta o cruzamento de histórias e emoções e a discussão do significado da vigilância na produção artística que interage com as tecnologias. Questões que estão articuladas com o meu percurso. / Abstract: This paper proposes a reflection of the ways and means of using the network composition and manipulation of images on-line in a set of procedures through digital capture and applications resulting from a search in the search for a contemporary artistic production. To realize this proposal a cut in my artistic production, watch a series of works that move and conceptual concerns are directed towards the projection of images of different faces. Aiming to represent the different humanities that make up the urban landscape. This observation shows the places of intersection of stories and emotions and discussion of the significance of monitoring the production of art that interacts with the technologies. Issues that are linked with my route. / Mestrado / Artes Visuais / Mestre em Artes
86

Pokročilá meteostanice s přenosem obrazu / Advanced Weather Station with Image Transmission

Augustin, Stanislav January 2015 (has links)
The content of this diploma thesis is a hardware and software design of advanced weather station with image transmission. The meteostation consist of two units - outdoor and indoor unit. Outdoor unit provide processing measured values from temperature sensor, atmospheric pressure sensors, rain gauge and windmeter. It also provides processing of captured image and wireless transmission of measured values to indoor unit. Indoor unit should provide comfortable meteostation controlling and visualization of weather situation by web interface.
87

Pokročilá meteostanice s přenosem obrazu / Advanced Weather Station with Image Transmission

Augustin, Stanislav January 2015 (has links)
The content of this diploma thesis is a hardware and software design of advanced weather station with image transmission. The meteostation consist of two units - outdoor and indoor unit. Outdoor unit provide processing measured values from temperature sensor, atmospheric pressure sensors, rain gauge and windmeter. It also provides processing of captured image and wireless transmission of measured values to indoor unit. Indoor unit should provide comfortable meteostation controlling and visualization of weather situation by web interface.
88

Secure Encryption and Decryption by Aperture Variations of a Photodetector in an Acousto-Optic Bragg Cell

Chaparala, Suman Krishna 08 September 2016 (has links)
No description available.
89

Low complexity H.264 video encoder design using machine learning techniques

Unknown Date (has links)
H.264/AVC encoder complexity is mainly due to variable size in Intra and Inter frames. This makes H.264/AVC very difficult to implement, especially for real time applications and mobile devices. The current technological challenge is to conserve the compression capacity and quality that H.264 offers but reduce the encoding time and, therefore, the processing complexity. This thesis applies machine learning technique for video encoding mode decisions and investigates ways to improve the process of generating more general low complexity H.264/AVC video encoders. The proposed H.264 encoding method decreases the complexity in the mode decision inside the Inter frames. Results show, at least, a 150% average reduction of complexity and, at most, 0.6 average increases in PSNR for different kinds of videos and formats. / by Paula Carrillo. / Thesis (M.S.C.S.)--Florida Atlantic University, 2008. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2008. Mode of access: World Wide Web.
90

Time-sensitive communication of digital images, with applications in telepathology

Khire, Sourabh Mohan 08 July 2009 (has links)
Telepathology is defined as the practice of pathology at a distance using video imaging and telecommunications. In this thesis we address the two main technology challenges in implementing telepathology, viz. compression and transmission of digital pathology images. One of the barriers to telepathology is the availability and the affordability of high bandwidth communication resources. High bandwidth links are required because of the large size of the uncompressed digital pathology images. For efficient utilization of available bandwidth, these images need to be compressed. However aggressive image compression may introduce objectionable artifacts and result in an inaccurate diagnosis. This discussion helps us to identify two main design challenges in implementing telepathology, 1. Compression: There is a need to develop or select an appropriate image compression algorithm and an image quality criterion to ensure maximum possible image compression, while ensuring that diagnostic accuracy is not compromised. 2. Transmission: There is a need to develop or select a smart image transmission scheme which can facilitate the transmission of the compressed image to the remote pathologist without violating the specified bandwidth and delay constraints. We addressed the image compression problem by conducting subjective tests to determine the maximum compression that can be tolerated before the pathology images lose their diagnostic value. We concluded that the diagnostically lossless compression ratio is at least around 5 to 10 times higher than the mathematically lossless compression ratio, which is only about 2:1. We also set up subjective tests to compare the performance of the JPEG and the JPEG 2000 compression algorithms which are commonly used for compression of medical images. We concluded that JPEG 2000 outperforms JPEG at lower bitrates (bits/pixel), but both the algorithms perform equally well at higher bitrates. We also addressed the issue of image transmission for telepathology by proposing a two-stage transmission scheme, where coarse image information compressed at diagnostically lossless level is sent to the clients at the first stage, and the Region of Interest is transmitted at mathematically lossless compression levels at the second stage, thereby reducing the total image transmission delay.

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