Refine
Year of publication
- 2008 (311) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (61)
- Fachbereich Wirtschaftswissenschaften (49)
- Fachbereich Elektrotechnik und Informationstechnik (41)
- IfB - Institut für Bioengineering (34)
- Fachbereich Maschinenbau und Mechatronik (30)
- Fachbereich Energietechnik (28)
- Fachbereich Bauingenieurwesen (23)
- Fachbereich Luft- und Raumfahrttechnik (19)
- Fachbereich Chemie und Biotechnologie (16)
- INB - Institut für Nano- und Biotechnologien (16)
Document Type
- Article (180)
- Conference Proceeding (61)
- Book (34)
- Part of a Book (13)
- Doctoral Thesis (6)
- Patent (6)
- Report (4)
- Part of a Periodical (3)
- Other (2)
- Lecture (1)
Keywords
Optimization of the reaeration potential on embankment stepped spillways in skimming flow regime
(2008)
Entwicklung eines Bemessungsmodells für punktförmige Verbindungen textibewehrter Betonbauteile
(2008)
Solar tower power plants
(2008)
Enterprise SOA Roadmap
(2008)
Time-of-flight (ToF) sensors have become an alternative to conventional distance sensing techniques like laser scanners or image based stereo. ToF sensors provide full range distance information at high frame-rates and thus have a significant impact onto current research in areas like online object recognition, collision prevention or scene reconstruction. However, ToF cameras like the photonic mixer device (PMD) still exhibit a number of challenges regarding static and dynamic effects, e.g. systematic distance errors and motion artefacts, respectively. Sensor calibration techniques reducing static system errors have been proposed and show promising results. However, current calibration techniques in general need a large set of reference data in order to determine the corresponding parameters for the calibration model. This paper introduces a new calibration approach which combines different demodulation techniques for the ToF- camera 's reference signal. Examples show, that the resulting combined demodulation technique yields improved distance values based on only two required reference data sets.
Beyond ClearPET: Next Aims
(2008)
The CRYSTAL CLEAR collaboration, in short CCC, is a consortium of 12 academic institutions, mainly from Europe, joining efforts in the area of developing instrumentation for nuclear medicine and medical imaging. In the framework of the CCC a high performance small animal PET system, called ClearPET, was developed by using new technologies in electronics and crystals in a phoswich arrangement combining two types of lutetium- based scintillator materials: LSO:Ce and LuYAP:Ce. Our next aim will be the development of hybrid image systems. Hybrid MR-PET imaging has many unique advantages for brain research. This has sparked a new research line within CCC for the development of novel MR-PET compatible technologies. MRI is not as sensitive as PET but PET has poorer spatial resolution than MRI. Two major advantages of PET are sensitivity and its ability to acquire metabolic information. To assess these innovations, the development of a 9.4T hybrid animal MR-PET scanner is proposed based on an existing 9.4T MR scanner that will be adapted to enable simultaneous acquisition of MR and PET data using cutting- edge technology for both MR and PET.