Sökning: "Youzhi Xu"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Youzhi Xu.
1. Coding for Improved Perceived Quality of 2D and 3D Video over Heterogeneous Networks
Sammanfattning : The rapid development of video applications for TV, the internet and mobile phones is being taken one step further in 2010 with the introduction of stereo 3D TV. The 3D experience can be further improved using multiple views in the visualization. LÄS MER
2. Spatio-Temporal Pre-Processing Methods for Region-of-Interest Video Coding
Sammanfattning : In video transmission at low bit rates the challenge is to compress the video with a minimal reduction of the percieved quality. The compression can be adapted to knowledge of which regions in the video sequence are of most interest to the viewer. LÄS MER
3. Synthesis, Coding, and Evaluation of 3D Images Based on Integral Imaging
Sammanfattning : In recent years camera prototypes based on Integral Imaging (II) have emerged that are capable of capturing three-dimensional (3D) images. When being viewed on a 3D display, these II-pictures convey depth and content that realistically change perspective as the viewer changes the viewing position. LÄS MER
4. Traffic Analysis, Modeling and Their Applications in Energy-Constrained Wireless Sensor Networks : On Network Optimization and Anomaly Detection
Sammanfattning : Wireless sensor network (WSN) has emerged as a promising technology thanks to the recent advances in electronics, networking, and information processing. A wide range of WSN applications have been proposed such as habitat monitoring, environmental observations and forecasting systems, health monitoring, etc. LÄS MER
5. Design and Optimization of Wireless Remote Monitoring and Control System Using the ZigBee Protocol
Sammanfattning : This thesis presents the design and the optimization of a wireless remote monitoring and control system utilizing the ZigBee protocol.From the system architecture point of view, the remote wireless monitoring and control system is mainly combined by 3 parts, the wireless sensor network, the message gateway and the web service. LÄS MER