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.
Results
Showing 1 to 20 of 124 for “"frame rate"”.
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High-Frame-Rate Oil Film Interferometry
<h1><a></a></h1> <p>High-Frame-Rate Oil Film Interferometry</p> <p>Jonathan Charles White</p> <p>This thesis presents the design and implementation of a high-frame-rate oil film interferometry technique (HOFI) used to directly measure skin friction in time dependent flows. Experiments were …
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Motion estimation for frame-rate conversion
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science.
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A Unified Framework for High-Frame-Rate High-Dynamic-Range Video Synthesis
Creating high-dynamic-range (HDR) video at high-frame rates is a technically demanding and application-critical problem, particularly in domains such as cinematography and autonomous perception. The challenge arises from the limitations of conventional image sensors in capturing both temporal and …
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Video resolution, frame rate and grayscale tradeoffs under limited bandwidth for undersea teleoperation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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End-to-end video adaptation using frame rate optimization and TCP-friendly rate control
… we focus on two areas of video adaptation: video rate control and frame rate control. The first part is on video rate control, which aims to adjust video bitrate to meet the network constraint. To that end, we propose a joint source rate and congestion control scheme called video TCP-friendly rate …
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Operator-adjustable frame rate, resolution, and gray scale tradeoff in fixed-bandwidth remote manipulator control
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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A Framework for Object Recognition in Construction Using Building Information Modeling and High Frame Rate 3D Imaging
… enable a recognition task. The ability to integrate a diverse set of object recognition data for different components in a Building Information Model (BIM) will enable many autonomous systems to access and use these data in an on-demand learning capacity, and will accelerate the integration of …
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Empirical Methods for Evaluating Video-Mediated Collaborative Work
… approaches to the problem of reduced video frame rate in desktop video conferencing. In the first study, a psychophysical method was used to evaluate video image quality as a function of frame rate for a series of different scenes. Scenes varied in terms of level of detail, velocity of …
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A versatile I/O system for a real time image processor
… on a standard RS l7O 2:l video monitor. Variable frame rate reduction. circuits and. bit reduction techniques such as line, column and dot interlace are incorporated during output conditioning. Experiments on reducing the frame rate and bit rate of a processed image can be carried out using this …
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Stereo Vision System Module for Low-Cost FPGAs for Autonomous Mobile Robots
… image data needs to be processed at a reasonable frame rate. Real-time stereo vision allows for mobile robots to more easily navigate terrain and interact with objects by providing both the images from the cameras and the depth of the objects. Fortunately, the image processing can be parallelized …
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Video quality requirements for South African Sign Language communications over mobile phones.
… 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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Active Thermography Using Cellphone Attachment Infrared Camera
… limitations, in this thesis, we aim to demonstrate feasibility of performing AT with cell-phone attachment infrared cameras with cost of -$250 and size significantly less than the research-grade infrared cameras. This involves developing a hardware-level code/software for controlling camera …
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Distributed visibility servers
… visible geometry before rendering increases the frame-rate of real-time applications. However, computing this exact set is computationally intensive and prohibitive in real-time for large models. For many densely occluded environments that contain a small number of large occluding objects (such …
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Advancing Multimedia: Application Sharing, Latency Measurements and User-Created Services
… and keyboard events are delivered and regenerated at the server. Application and desktop sharing enables collaborative work, software tutoring, and e-learning over the Internet. I have developed a high performance application and desktop sharing system called BASS which is efficient, …
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Efficient compression of synthetic video
… of video sequences were used with different frame rates and resolutions. The effects of changing frame rate and resolution on compression efficiency and viewers‟ satisfaction are also presented. Results showed that the compression process and perceptual satisfaction are severely affected by …
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Measurement and Enhancement of Cloud-based Online Gaming Systems
… existing cloud gaming implementations, we migrate the entire gaming system into a fully virtualized local cloud environment and compare its performance to a pure datacenter-based deployment. From our experiments, we find that the virtualized environment will significantly affect the latency as …
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Metodi sperimentali per la caratterizzazione di schiume sintattiche e leghe metalliche ad elevato strain rate
… la caratterizzazione a differenti strain rate di diverse tipologie di materiali impiegati in ambito aerospaziale e le problematiche sperimentali ad essa connesse. Tale lavoro si inserisce nell¿ambito dell¿attività svolta dall¿Impact Engineering Lab dell¿Università di Oxford durante il …
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Ultrasonic Methods to Measure Shear Wave Velocity and Absorption for Tissue Viscoelasticity Characterization
… Advanced ultrasound imaging system with high frame rate may be able to overcome these problems, yet the configuration of such system was complex and thus expensive. In this thesis, methods to solve the above-mentioned problems were proposed by using conventional ultrasound imaging system with …
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Finding perceptually optimal operating points of a real time interactive video-conferencing system
… exist one objective quality metric that can accurately and fully describe the perceptual quality of a real time video conversation. Hence there is a need for a controlled environment to allow tests to be conducted in and in which we can study different metrics and identify the best trade-offs …
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3D task performance using head-coupled stereo displays
… path through a complex 3D tree structure. Error rates for this task showed an order of magnitude improvement with head-coupled stereo viewing compared to a static display, and the error rates achieved under head-coupling alone were significantly better than those obtained under stereo alone. The …
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