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| 1 | Estimating fisheye camera parameters from homography显示文摘This paper presents a method to linearly estimate fisheye camera model parameters from the homography induced by the space plane between two fisheye images.The homography is firstly calculated by using four feature points,instead of three points on the same line,in the fisheye image.And the constraint on the model parameters of fisheye camera can be derived from the homography under the assumption that fisheye camera model is a polynomial model.Then the model parameters for different order polynomials are computed.The proposed technique requires only multiple fisheye images to include a planar scene and need not a priori knowledge of 3D coordinate of the planar scene.Experimental results with synthetic data and real fisheye images demonstrate the validity of our method.The method can also be extended to fisheye image of other planar scene excluding the planar calibration object. | ZHU HaiJiang YANG Ping LI ShiGang | 2012 | Science China(Information Sciences)2012，55，9： | 3 |
| 2 | Synthesis and properties of high tap-density cathode material for lithium ion battery by the eutectic molten-salt method显示文摘 | Zhaorong Chang Zhongjun Chen Feng Wu Hongwei Tang Zhihong Zhu Xiao Zi Yuan Haijiang Wang | 2008 | Solid State Ionics2008，，39： | 1 |
| 3 | Synthesis and characterization of high-density non-spherical Li(Ni 1/3 Co 1/3 Mn 1/3 )O 2 cathode material for lithium ion batteries by two-step drying method显示文摘 | Zhaorong Chang Zhongjun Chen Feng Wu Hongwei Tang Zhihong Zhu Xiao Zi Yuan Haijiang Wang | 2008 | Electrochimica Acta2008，，20： | 1 |
| 4 | Auto - scanning and visualizing system for the acoustic field of transducer 显示文摘 | Haijiang Zhu Yanqiang Feng Ping Yang | 2012 | Robotics and Computer Integrated Manufacturing2012，28，5： | 1 |
| 5 | Achieving high yield of Ti3C2Tx MXene few-layer flakes with enhanced pseudocapacior performance by decreasing precursor size显示文摘Ti3C2Tx,a most studied member of MXene family,shows promise as a candidate electrode for pseudocapacitor due to its electronic conductivity and hydrophilic surface.However,the unsatisfactory yield of Ti3C2Tx few-layer flakes significantly restricted it in real applications.Here,we proposed a simple solution to boost the yield of Ti3C2Tx few-layer flakes by decreasing precursor size.When using the small500 mesh Ti3AlC2 powders as raw material,high yield of 65%was successfully achieved.Moreover,the asreceived small flakes also exhibit an enhanced pseudocapacior performance owing to their excellent electrical conductivity,expanded inte rlayer space and more O content on the surface.This work not only sheds light on the cost effective mass production of Ti3C2Tx few-layer flakes,but also provides an efficient solution for the design of MXene electrodes with high pseudocapacior performance. | Jianguang Xu Jiale Zhu Chen Gong Zexin Guan Dan Yang Zhihan Shen Wei Yao Haijiang Wu | 2020 | Chinese Chemical Letters2020，31，4： | 1 |
| 6 | Manganese dioxide nanotube and nitrogen-doped carbon nanotube based composite bifunctional catalyst for rechargeable zinc-air battery显示文摘 | Zhu Chen Aiping Yu Raihan Ahmed Haijiang Wang Hui Li Zhongwei Chen | 2012 | Electrochimica Acta2012，，： | 1 |
| 7 | Camera calibrationwith moving one-dimensional objects 显示文摘 | WUFuchao HU Zhanyi ZHU Haijiang | 2005 | PatternRecognition2005，38，5： | 1 |
| 8 | Visualization and measurement of the acoustic field of the piston transducer显示文摘 | Yanqiang Feng Haijiang Zhu Ping Yang | 2013 | Sensor Review2013，33，2： | 1 |
| 9 | Camera calibration with moving one-dimensional objects显示文摘 | Wu Fuchao Hu Zhanyi Zhu Haijiang | 2005 | Pattern Recognition2005，38，5： | 1 |
| 10 | Camera calibration with moving one-dimensional objects 显示文摘 | Wu Fuchao Hu Zhanyi Zhu Haijiang | 2005 | Pattern Recognition2005，38，5： | 1 |
| 11 | A model study of the equation of state,quark-number susceptibility and scalar susceptibility of QCD at finite chemical potential and zero temperature显示文摘In this article,we try to calculate the equation of state(EOS) of quantum chromodynamics(QCD) at finite chemical potential and zero temperature in the framework of a nonperturbative QCD model.Compared with the cold,perturbative EOS of QCD proposed by Fraga et al.,our EOS approaches more fastly to the free quark gas result at large chemical potential.It is expected that our EOS can provide a possible new tool for the study of neutron star.We also try to provide a direct approach for calculating quark number susceptibility and scalar susceptibility at finite chemical potential and zero temperature. | ZHU HuiXia WANG HaiJiang PAN DanFeng ZONG HongShi | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，12： | 1 |
| 12 | Photoresponse and carrier transport of protocrystalline silicon multilayer films显示文摘Alternating multilayer films of hydrogen diluted hydrogenated protocrystalline silicon (pc-Si:H) were prepared using a plasma-enhanced chemical vapor deposition technique.The microstructure of the deposited films and photoresponse characteristics of their Schottky diode structures were investigated by Raman scattering spectroscopy,Fourier transform infrared spectroscopy and photocurrent spectra.Microstructure and optical absorption analyses suggest that the prepared films were pc-Si:H multilayer films with a two-phase structure of silicon nanocrystals (NCs) and its amorphous counterpart and the band gap of the films showed a decreasing trend with increasing crystalline fraction.Photocurrent measurement revealed that silicon NCs facilitate the spatial separation of photo-generated carriers,effectively reduce the non-radiative recombination rate,and induce a photoresponse peak value shift towards the short-wavelength side with increasing crystallinity.However,the carrier traps near the surface defects of silicon NCs and their spatial carrier confinement result in a significant reduction of the diode photoresponse in the longwavelength region.An enhancement of the photoresponse from 350 to 1000 nm was observed when applying an increased bias voltage in the diode,showing a favorable carrier transport and an effective collection of photo-generated carriers was achieved.Both the spatial separation of the restricted electron-hole pairs in silicon NCs and the de-trapping of the carriers at their interface defects are responsible for the red-shift in photoresponse spectra and enhancement of external quantum efficiency.The results provide fundamental data for the carrier transport control of high-efficiency pc-Si:H solar cells. | YU Wei ZHU HaiRong ZHAO Yi SUN YuKai LU HaiJiang FU GuangSheng | 2012 | Chinese Science Bulletin2012，57，20： | 0 |
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