A5072237940- Optical Wireless Communication Technologies
- Optical Polarization and Ellipsometry
- Image Enhancement Techniques
- Optical Network Technologies
- Photonic and Optical Devices
- Spectroscopy and Chemometric Analyses
- Leaf Properties and Growth Measurement
- Advanced Vision and Imaging
- Adaptive optics and wavefront sensing
- Digital Holography and Microscopy
- Image Retrieval and Classification Techniques
- Rough Sets and Fuzzy Logic
- Video Surveillance and Tracking Methods
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Remote Sensing and LiDAR Applications
- Error Correcting Code Techniques
- Satellite Communication Systems
- Medical Image Segmentation Techniques
- Advanced optical system design
- Advanced Optical Network Technologies
- Random lasers and scattering media
- Advanced Wireless Communication Techniques
- Advanced Image Fusion Techniques
- Infrared Target Detection Methodologies
Xi'an Institute of Optics and Precision Mechanics
2015-2023
University of Chinese Academy of Sciences
2015-2023
Xi'an Jiaotong University
2023
Chinese Academy of Sciences
2017
Polarimetric dehazing methods have been proven to be effective in enhancing the quality of images acquired turbid media. We report a new full-Stokes polarimetric camera, which is based on division aperture structure. design kind automatic algorithm and load it into field programmable gate array (FPGA) modules our designed achieving real-time image haze removal with an output rate 25 fps. demonstrate that can significantly improved together good color restoration. This technique might...
Satellite free-space optical (FSO) communication is very promising in improving the bandwidth and capacity of space information networks future. However, inter-satellite transmission distance over 1000 km leads to unstable beam pointing, acquisition, tracking then generates power jitter by a large margin before detection-demodulation. Therefore, it difficult realize high-stability long-time FSO between satellites due generated bit error rate (BER) jitter. In this paper, we report an...
In recent years, the thriving satellite laser communication industry has been severely hindered by limitations of incompatible modulation formats and restricted Size Weight Power (SWaP). A multi-modulation compatible method serving for free-space optical (FSO) proposed assisted chirp-managed (CML). The corresponding demonstration system established realizing free-switching between intensity (OOK) phase (RZ-DPSK). feasibility performance have evaluated sufficiently when loading with 2.5 5...
Image haze removal has attracted much attention in optics and computer vision fields recent years due to its wide applications. In particular, the fast real-time dehazing methods are of significance. this paper, we propose a method hue, saturation intensity colour space based on polarimetric imaging technique. We implement channel, distortion image is corrected using white patch retinex method. This not only reserves detailed information restoration capacity, but also improves efficiency...
Shortwave infrared (SWIR) polarimetric imaging has been found very effective in various applications. However, the low resolution of SWIR camera severely limits capacity this technique. Image reconstruction methods have developed to improve spatial resolution, but these typically do not consider polarized information that images may contain. In paper, we propose a high-resolution method for based on visible without losing image. Experimental results demonstrate is feasible reconstruct...
It is hard to achieve low bit error rate (BER) and high-quality signals in free-space optical (FSO) communication systems due atmospheric link interference. For the sake of seeking solutions, we proposed an experimental scheme laser based on middle-wave infrared (MWIR) near (NIR) for obtaining transmission characteristic 1 km turbulence path. Compared with NIR waveband, MWIR-based more suitable FSO since it owns higher anti-interference ability attenuation, skylight background noise. The...
The deployment of low earth orbits is seen as a promising way enlarging data capacities well high rates. Catering to these interests, optical communication presents possible ways larger bandwidth than microwave communication. current generation mainstream systems are classified coherent and incoherent systems, in particular, have received more attention owing their receiving sensitivity. This study investigates digital transceiver, based on binary phase-shift keying technology. As...
To overcome the power jitters in satellite-to-ground communications caused by atmospheric turbulence, a type of DPSK free-space communication system, assisted self-designed real-time phase lock controller, has been established. The system can effectively compensate for swings links and hence achieve high sensitivity. wavelength division multiplexing technique is applied to four-channel provide greater link capacity. With data rate single channel as 2.5 Gbps unencoded BER 1 × 10 –3 ,...
When an object is illuminated by incoming light described a Stokes vector, the outgoing scattered, reflected or transmitted from modulated and its polarization property can be expressed another vector. The transformation relation between vectors called Mueller matrix. matrix completely characterizes optical properties of scattered object, including diattenuation, retardance depolarization. So, how to measure efficiently accurately becomes considerably significant for practical applications....
With the rapid development of digital technology, data increased greatly in both static image and dynamic video image. It is noticeable how to decrease redundant order save or transmit information more efficiently. So research on compression becomes important. Using GPU achieve higher ratio has superiority interactive remote visualization. Contrast CPU, may be a good way accelerate compression. Currently, NIVIDIA evolved into eighth generation, which increasingly dominates high-powered...
Polarimetric dehazing methods are proven very effective in enhancing the contrast and visibility of images captured hazy weather. In this paper, we analyze capability enhancement experiments.
In this paper, we discuss the challenges and limitations of current free-space optical (FSO) networks toward scaling beyond 100 Gbps switch capacity era while achieving low-latency high-reliability. Owing to slowdown Moore’s law, avoid electronically-induced bottlenecks, construct an FSO network experimentally evaluate feasibility ultrafast packet architecture based on polarization-independent plomb lanthanum zirconate titanate (PLZT) without buffering. The bit error ratio 160 ([Formula: see...