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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.
171

Video analysis and compression for surveillance applications

Savadatti-Kamath, Sanmati S. 17 November 2008 (has links)
With technological advances digital video and imaging are becoming more and more relevant. Medical, remote-learning, surveillance, conferencing and home monitoring are just a few applications of these technologies. Along with compression, there is now a need for analysis and extraction of data. During the days of film and early digital cameras the processing and manipulation of data from such cameras was transparent to the end user. This transparency has been decreasing and the industry is moving towards `smart users' - people who will be enabled to program and manipulate their video and imaging systems. Smart cameras can currently zoom, refocus and adjust lighting by sourcing out current from the camera itself to the headlight. Such cameras are used in the industry for inspection, quality control and even counting objects in jewelry stores and museums, but could eventually allow user defined programmability. However, all this will not happen without interactive software as well as capabilities in the hardware to allow programmability. In this research, compression, expansion and detail extraction from videos in the surveillance arena are addressed. Here, a video codec is defined that can embed contextual details of a video stream depending on user defined requirements creating a video summary. This codec also carries out motion based segmentation that helps in object detection. Once an object is segmented it is matched against a database using its shape and color information. If the object is not a good match, the user can either add it to the database or consider it an anomaly. RGB vector angle information is used to generate object descriptors to match objects to a database. This descriptor implicitly incorporates the shape and color information while keeping the size of the database manageable. Color images of objects that are considered `safe' are taken from various angles and distances (with the same background as that covered by the camera is question) and their RGB vector angle based descriptors constitute the information contained in the database. This research is a first step towards building a compression and detection system for specific surveillance applications. While the user has to build and maintain a database, there are no restrictions on the size of the images, zoom and angle requirements, thus, reducing the burden on the end user in creating such a database. This also allows use of different types of cameras and doesn't need a lot of up-front planning on camera location, etc.
172

Analysis and applications of some practical source coding systems

Bist, Anurag January 1994 (has links)
Thesis (Ph. D.)--University of Hawaii at Manoa, 1994. / Includes bibliographical references (leaves 159-166). / Microfiche. / xiv, 166 leaves, bound ill. 29 cm
173

Error resilience in JPEG2000 /

Natu, Ambarish Shrikrishna. January 2003 (has links)
Thesis (M.E.)--University of New South Wales, 2003. / Also available online.
174

Optimization of a new digital image compression algorithm based on nonlinear dynamical systems /

Sinha, Anurag R. January 2008 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2008. / Typescript. Includes bibliographical references (leaves 83-85).
175

Data compression for inference tasks in wireless sensor networks

Chen, Mo. January 2006 (has links)
Thesis (Ph. D.)--State University of New York at Binghamton, Department of Electrical Engineering, Thomas J. Watson School of Engineering and Applied Science, 2006. / Includes bibliographical references.
176

Multiresolution strategies for the numerical solution of optimal control problems

Jain, Sachin. January 2008 (has links)
Thesis (Ph. D.)--Aerospace Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Tsiotras, Panagiotis; Committee Member: Calise, Anthony J.; Committee Member: Egerstedt, Magnus; Committee Member: Prasad, J. V. R.; Committee Member: Russell, Ryan P.; Committee Member: Zhou, Hao-Min.
177

A study of image compression techniques, with specific focus on weighted finite automata /

Muller, Rikus. January 2005 (has links)
Thesis (MSc)--University of Stellenbosch, 2005. / Bibliography. Also available via the Internet.
178

Nonlinear wavelet compression methods for ion analyses and dynamic modeling of complex systems /

Cao, Libo. January 2004 (has links)
Thesis (Ph.D.)--Ohio University, November, 2004. / Includes bibliographical references (p. 168-177)
179

Speaker identification based on an integrated system combining cepstral feature extraction and vector quantization

Sanchez, Jose Boris. Meyer-Baese, Anke. January 2005 (has links)
Thesis (M.S.)--Florida State University, 2005. / Advisor: Dr. Anke Meyer-Baese, Florida State University, College of Engineering, Dept. of Electrical Engineering. Title and description from dissertation home page (viewed June 15, 2005). Document formatted into pages; contains vii, 30 pages. Includes bibliographical references.
180

Design of a hardware efficient key generation algorithm with a VHDL implementation /

Goeke, James A. January 1993 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1993. / Typescript. Includes bibliographical references.

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