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TO ACHIEVE REAL IMMERSION: THE 3D VIRTUAL AND PHYSICAL RECONSTRUCTION OF CAVE 3 AND CAVE 12 OF YUNGANG GROTTOES
cascade SfM robust detailed MVS 3D printing replica cave
2019/3/1
s the 3D laser scanning and photogrammetry technologies continue to mature, more and more applications founded in numerous areas. The realistic 3D models are mainly adopted for digital display uses, s...
REAL-TIME VIDEO-BASED RECONSTRUCTION OF URBAN ENVIRONMENTS
computer vision, 3D model, stereo reconstruction, large-scale reconstruction, real time processing, geo-registration
2015/10/8
We present an approach for automatic 3D reconstruction of outdoor scenes using computer vision techniques. Our system collects
video, GPS and INS data which are processed in real-time to produce geo-...
2D-3D feature extraction and registration of real world scenes
Cultural Heritage Photogrammetry Laser Scanner Segmentation Registration Texture Mapping
2015/8/24
In this paper we present an efficient edge detection algorithm for the extraction of linear features in both range and intensity image data. The purpose is to simplify the dense datasets and to provid...
Fully On-Chip Integrated Photodetector Front-End Dedicated to Real-Time Portable Optical Brain Imaging
Biochip Analog CMOS Integrated Circuit Trans-Impedance Amplifier fNIRS Brain Imaging Medical Imaging Optical Sensors
2013/1/30
Optical brain imaging using functional near infra-red spectroscopy (fNIRS) offers a portable and noninvasive tool for monitoring of blood oxygenation. In this paper we have introduced a new miniaturiz...
Blur-mask approach (BMA) was developed to simulate the light distribution of locally controlled LED backlight, providing much lower computational complexity which is less than1% of that of conventiona...
Real Time Monitoring of Fluorescent Particles in Micro-Channels by High Resolution Dual Modality Probe Imaging
Microscopy Image Fiber Spectrophotometer Microchannel
2013/1/30
Imaging of micro particles in micro-fluidic channels is one of the recent thrust areas in research as it provides more flexibility in setup and analysis compared to conventional microscopy. However, a...
101.5 Gbit/s Real-Time OFDM Transmitter with 16QAM Modulated Subcarriers
Optical communications Coherent communications
2015/5/25
We demonstrate for the first time a 101.5 Gbit/s single-polarization OFDM transmitter based on real-time FPGA processing. We modulate 58 subcarriers with 16QAM.
Real-time IQ Imbalance Compensation for Coherent Optical OFDM Transmission
Fiber optics links and subsystems Coherent communications
2015/5/25
A FPGA-based receiver side (Rx) IQ imbalance compensation scheme for 10.7-Gb/s 16-QAM CO-OFDM transmission is demonstrated in real time. The compensation scheme performs better with the increase of OS...
Real-time CO-OFDM transmitters and receivers for 10.5Gb/s bit-rate implemented in FPGAs are reported applying 10GSa/s converters and entire algorithms for both terminals. The Q-factors are 22.7dB for ...
Real-Time Ultra-broadband Group Delay Monitoring through Quasi-Incoherent Processing
Fiber Bragg gratings Fiber optics communications Fiber optics components Bragg reflectors Dispersion compensation devices
2015/5/25
Simple method for real-time ultra-broadband group delay measurement of photonic devices is reported, demonstrating accurate group delay ripple monitoring of a 10m-long chirped fiber grating over the f...
Real-time Gigabit Ethernet bidirectional transmission over a single SI-POF up to 75 meters
Fiber optics communications Optical Communications
2015/5/25
In this paper we demonstrate 1Gb/s bidirectional transmission over a single SI-POF,over the record distance of 75m. We successfully tested our system running real time Gigabit Ethernet traffic generat...
Real-Time FPGA-Based Intradyne Coherent Receiver for 40 Gbit/s Polarization-Multiplexed 16-QAM
Coherent communications Optical communications
2015/5/25
Real-time detection of a 40 Gbit/s polarization-multiplexed square 16-QAM signal is demonstrated in an FPGA-based intradyne coherent receiver processing 100% of data. A minimum BER of 3.3×10 -5 is ach...
Real-time FPGA-based Coherent Optical Receiver for 1 Gsymbol/s, 64 QAM Transmission
Coherent communications Fiber optics communications
2015/5/25
We demonstrated the first time real-time FPGA-based coherent optical receiver for a 64 QAM transmission. Error free performance (BER < 1x10 -12 ) was achieved under a back-to-back condition and the BE...
Real-Time Optical OFDM Transceivers for PON Applications
Fibre Optical Communications Modulation Fibres single mode
2015/5/25
Recent real-time optical OFDM (OOFDM) research progress is reviewed extensively in terms of adaptive transceiver design, intensity modulators, synchronisation techniques and network architectures. Res...
Linearized Parametric Gate for Real-Time Photonic- Sampled Analog-to-Digital Conversion
Analog optical signal processing Parametric processes Nonlinear optics four-wave mixing
2015/5/22
A linearized parametric sampling gate was constructed to explore its performance limits in an analog-to-digital conversion (ADC) architecture. Linear response of the sampling gate can be achieved both...