Cheng Zhao

ORCID: 0009-0007-3881-8122
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About
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Research Areas
  • Optical Network Technologies
  • Advanced Image Fusion Techniques
  • PAPR reduction in OFDM
  • Infrared Target Detection Methodologies
  • Advanced Photonic Communication Systems
  • Pelvic floor disorders treatments
  • Optical Wireless Communication Technologies
  • Image and Signal Denoising Methods
  • Technology Assessment and Management
  • Cellular Automata and Applications
  • Image Enhancement Techniques
  • Bladder and Urothelial Cancer Treatments
  • Urological Disorders and Treatments
  • Image Processing Techniques and Applications
  • Visual Attention and Saliency Detection
  • Advanced Measurement and Detection Methods
  • User Authentication and Security Systems
  • VLSI and FPGA Design Techniques
  • Spinal Fractures and Fixation Techniques
  • Biometric Identification and Security
  • Pregnancy and preeclampsia studies
  • Endometriosis Research and Treatment
  • Automated Road and Building Extraction
  • Diet, Metabolism, and Disease
  • Lipid metabolism and disorders

Qingdao University
2024-2025

Affiliated Hospital of Qingdao University
2024-2025

Harbin Engineering University
2024

China Academy of Space Technology
2018-2023

Beijing Electronic Science and Technology Institute
2018-2021

Shenzhen University
2021

North Minzu University
2018-2019

Xiangya Hospital Central South University
2019

Central South University
2019

Shanghai Sixth People's Hospital
2018

10.1016/0012-365x(94)00268-n article EN Discrete Mathematics 1996-01-01

In order to improve fused image quality of multi-spectral (MS) and panchromatic (PAN) image, a new remote sensing fusion algorithm based on robust principal component analysis (RPCA) non-subsampled shearlet transform (NSST) is proposed. First, the first principle PC1 MS extracted via (PCA). Then, PAN are decomposed by NSST get low high frequency subbands, respectively. For subband, sparse matrix RPCA decomposition used guide rule; for rule employed adaptive PCNN model. Finally, obtained...

10.1142/s0219691318500376 article EN International Journal of Wavelets Multiresolution and Information Processing 2018-04-09

10.3724/sp.j.1010.2009.00254 article EN JOURNAL OF INFRARED AND MILLIMETER WAVES 2009-09-28

The rolling guidance filtering (RGF) has a good characteristic which can smooth texture and preserve the edges, non-subsampled shearlet transform (NSST) features of translation invariance direction selection based on new infrared visible image fusion method is proposed. Firstly, filter used to decompose images into base detail layers. Then, NSST utilized layer get high-frequency coefficients low-frequency coefficients. uses visual saliency map as rule, subbands use gradient domain guided...

10.1142/s0219691319500450 article EN International Journal of Wavelets Multiresolution and Information Processing 2019-05-31

Accurate placenta super micro-vessels segmentation is the key to diagnose placental diseases. However, current automatic algorithm has issues of information redundancy and low utilization, which reduces accuracy. To solve this problem, we propose a model based on ResNeXt with convolutional block attention module (CBAM) UNet (RC-UNet) for segmentation. In RC-UNet model, choose as backbone network initial feature extraction. At same time, select ResNeXt-CBAM refinement weighting. Specifically,...

10.1109/embc46164.2021.9630773 article EN 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) 2021-11-01

10.1016/j.compeleceng.2021.107659 article EN Computers & Electrical Engineering 2021-12-29

To investigate the mortality, operation time, cystectomy and complications of anterior approach laparoscopic radical (ALRC) in Asian males comparison with posterior (PLRC).One hundred forty-seven male patients bladder cancer (cT2-3NxM0) our hospital from May 2011 to January 2018 having undergone were studied, including 68 PLRC group 79 ALRC group. Baseline patient characteristics, operative postoperative retrospectively collected analyzed between two groups.Patients these groups exhibited...

10.1186/s12957-018-1547-7 article EN cc-by World Journal of Surgical Oncology 2019-01-07

Compared with the conventional orthogonal frequency division multiplexing (OFDM) system, condition of offset quadrature amplitude modulation (OFDM/OQAM) system only holds in real field. Due to relaxation condition, OFDM/OQAM systems could remove cyclic prefix (CP) and obtain higher net bit rate. However, for systems, intrinsic imaginary interference (IMI) seriously deteriorated performance. In order combat IMI, prototype filter well time Iocalization (TFL) property is highly desired system....

10.1109/iccsn.2018.8488213 article EN 2018-07-01

A linear system model for OPLL-based phase modulated RF photonic link is derived. With the model, gain, output noise and nonlinear distortions are analyzed. Theoretical results validated by simulations reachable SFDR when loop delay given discussed.

10.1364/acpc.2020.m4a.344 article EN 2020-01-01

Traditional photoelectric monitoring is monitored using a large number of identical cameras. In order to ensure the full coverage area, this method uses more cameras, which leads and repetition areas, higher costs, resulting in waste. reduce cost solve difficult problem finding, identifying tracking low altitude, slow speed small target, paper presents spatial vision network for low-slow-small targets recognition. Based on camera imaging principle model, modeled optimized. Simulation...

10.1117/12.2287145 article EN 2018-03-08

In this paper, wo proposed to use three loaded OFDM/OQAM pilot blocks perform channel estimation for optical OFDM/OQAM. We theoretically deduced optimal structure method and validated its advantage with simulation result.

10.1109/acp.2018.8595936 article EN 2017 Asia Communications and Photonics Conference (ACP) 2018-10-01

In this paper, we propose the model of filter banks’ TFL property for nonlinear optical OFDM/OQAM systems based on Volterra series. We analyze energy concentration characteristics different typical filters in systems.

10.1364/acpc.2020.m4a.219 article EN 2020-01-01

In this paper, we introduce the NFDM system using multiple eigenvalues and design a train-sequence method to realize frequency-domain channel estimation. Compared pre-compensation method, proposed shows better performance.

10.1364/acpc.2020.m4a.220 article EN 2020-01-01
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