Sökning: "Temporal Filtering"

Visar resultat 6 - 10 av 41 avhandlingar innehållade orden Temporal Filtering.

1. 6. Towards Quantitative Diagnostics using Short-Pulse Laser Techniques

   Författare :Andreas Ehn; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PicoSecond Laser Diagnostics; Raman Scattering; Photo Fragmentation; Fluorescnece Lifetime Imaging; Temporal Filtering; Fysicumarkivet A:2012:Ehn; LIDAR; Laser-Induced Fluorescence;

   Sammanfattning : Laser based diagnostic tools have had an exploding impact on fundamental as well as applied research in a number of disciplines, such as biomedicine, physical chemistry etc over the last decades. Whereas fundamental research often investigate phenomena in extreme conditions, applied research aims at performing in-situ measurements, in order to understand the many aspects and entangled phenomena that affects the research of interest. LÄS MER

3. 7. Development and Application of Single-Ended Picosecond Laser Diagnostics

   Författare :Billy Kaldvee; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Raman Scattering; Temporal Filtering; Picosecond Laser Diagnostics; Rayleigh Scattering; Laser-spectroscopy; DIAL; Laser Combustion Diagnostics; Lidar; Laser-induced Fluorescence; Laser-induced Incandescence; Fysicumarkivet A:2012:Kaldvee;

   Sammanfattning : Light detection and ranging (lidar), a method for nonintrusive, single-ended, and range resolved measurements, has been developed and applied for combustion related diagnostics. Employing picosecond laser pulse durations and detectors providing temporal resolution on the order of picoseconds, lidar has been applied successfully for both quantitative temperature- and species concentration measurements, obtaining an ultimate range resolution of 0. LÄS MER

4. 8. On Enhancement and Quality Assessment of Audio and Video in Communication Systems

   Författare :Andreas Rossholm; Blekinge Tekniska Högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE; video quality assessment; video quality metric; multi-linear regression; artificial neural network; support vector machine; quality predictor; machine learning; temporal scaling; spatial scaling; video compression; deblocking filter; noise cancelling; synchronization; audio delay; video delay; GSM interference signal; noise cancellation; notch filtering;

   Sammanfattning : The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. LÄS MER

5. 9. Studies in Robotic Vision, Optical Illusions and Nonlinear Diffusion Filtering

   Författare :Henrik Malm; Matematik LTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hand-eye calibration; camera calibration; nonlinear diffusion filtering; robotic vision; optical illusions; Mathematics; Matematik;

   Sammanfattning : This thesis is divided into three parts, which all deal with computational analysis and processing of images. However, the settings are quite diverse.They range from robotic camera sensors, over human perception, to physical measurement setups. LÄS MER

7. 10. On the acquisition, analysis and display of echocardiographic image sequences

   Författare :Tomas Gustavsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; motion detection; graphical modelling; ultrasonic imaging; wall motion analysis; three-dimensional reconstruction; image sequence analysis; spatio-temporal filtering; Echocardiography; left ventricular function; time-varying image analysis;

   Sammanfattning : .... LÄS MER