A5004068236- Random lasers and scattering media
- Terahertz technology and applications
- Advanced Optical Imaging Technologies
- Acoustic Wave Resonator Technologies
- Photonic and Optical Devices
- Visual perception and processing mechanisms
- Image and Video Quality Assessment
- Digital Media Forensic Detection
- Advanced Biosensing Techniques and Applications
- Image and Signal Denoising Methods
- Ocular and Laser Science Research
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Optical Sensing Technologies
- Advanced Chemical Sensor Technologies
- Microwave and Dielectric Measurement Techniques
- Optical Coherence Tomography Applications
Koito Manufacturing (Japan)
2020
Tohoku University
2017
The terahertz (THz) frequency range corresponds to molecular vibrations or relaxation modes such as those for the hydrogen bond. Most biomolecules are activated only in aqueous solutions, thus, understand function and structure of biomolecules, it is necessary investigate characteristics electromagnetic waves hydrated samples. THz radiation causes little damage human body, thus expected that can be applied noninvasive examinations. However, spectrometry transmitted light difficult, since...
In the conventional ghost imaging, it requires to illuminate a large number of patterns in order reconstruct good quality image under low signal-to-noise ratio. We propose new method so called time division imaging improve noisy environment. this procedure, total calculation process correlation function are divided into sub-units with fewer illuminated patterns. Then one calculates for each sub-unit, and synthesizes intermediate images obtained at sub-unit. The validation effectiveness...
The image quality of ghost imaging (“GI”) is degraded by noise such as ambient light. In this experiment, we evaluated the robustness to periodic normal GI using random patterns and that inverse (“IPGI”) simulation experiment. results confirmed increasing number illuminated per period improved IPGI noise. On other hand, with a high signal-to-noise ratio, system reconstructed better images than IPGI.