作者: 时永刚,张 岳,周治国,李祎,夏卓岩 (北京理工大学信息与电子学院)
出处: 电子与信息学报 2022 第44卷 第1期 P70-77
关键词: 胃镜图像;去模糊;生成对抗网络;梯度指导
摘要: 胃肠镜检查是目前临床上检查和诊断消化道疾病最重要的途径,内窥镜图像的运动模糊会对医生诊断和机器辅助诊断造成干扰。现有的去模糊网络由于缺乏对结构信息的关注,在处理内窥镜图像时普遍存在着伪影和结构变形的问题。为解决这一问题,提高胃镜图像质量,该文提出一种基于梯度指导的生成对抗网络,网络以多尺度残差网络( ...
作者: 时永刚,李祎,周治国,张岳,夏卓岩 (北京理工大学信息与电子学院)
出处: 电子与信息学报 2022 第44卷 第1期 P39-47
关键词: 图像分割;结肠息肉图像;空洞卷积;U-Net
摘要: 结肠息肉的精确分割对结直肠癌的诊断和治疗具有重要意义,目前的分割方法普遍存在有伪影、分割精度低等问题。该文提出一种基于阶梯结构的U-Net结肠息肉分割算法(SU-Net),使用U-Net的U型结构,利用Kronecker乘积来扩展标准空洞卷积核,构成Kronecker空洞卷积下采样有效扩大感受野,弥 ...
作者: Dong Qiao1;Xingyu Zhou2;Zeduan Zhao3;Tong Qin4; (11, Beijing Institute of Technology, Beijing, China ;2Beijing Institute of Technology, 47833 Beijing, Beijing, China ;3School of Aerospace Engineering, Nanjing Research Institute of Electronic Engineering, 154522 Nanjing, Jiangsu, China ;4School of Information and Electronic Systems, Beijing Institute of Technology, 47833 Beijing, Beijing, China)
出处: IEEE Transactions on Aerospace and Electronic Systems 2022 P1
关键词: Solar system;Navigation;Adaptive optics;Optical imaging;Optimization;Space vehicles;Planetary orbits
摘要: An increasing demand for investigating the solar system has envisioned many asteroid exploration missions.Optical navigation is the principal technolo ...
作者: 陈志铭,高一格,张蕾,王兴华 (北京理工大学信息与电子学院)
出处: 北京理工大学学报 2022 第5期
关键词: 2;bit/cycle;逐次逼近型模数转换器;噪声整形
摘要: 基于180nm CMOS 工艺,设计了一种2 bit/cycle 结构的8 bit、100 MS/s 逐次逼近模数转换器(SAR ADC). 采用两个DAC 电容阵列SIG_DAC、REF_DAC 实现了2 bit/cycle 量化,其中SIG_DAC 采用上极板采样大大减少了电容数目,分裂电容式结 ...
作者: 王维昊,蒋逸凡,费泽松,郭婧 (北京理工大学信息与电子学院)
出处: Frontiers of Information Technology & Electronic Engineering 2022 第23卷 第1期 P61-73
关键词: 无人机;泊松点过程;多点协同;干扰统计特性;覆盖性能
摘要: 为满足第六代移动通信的泛在连接需求,无人机作为未来通信网络主要组成部分发挥着关键作用。。频谱共享和视距链路传输造成的干扰是无人机通信的一个主要问题。近年来,为减少无人机—-地面异构网络干扰,提出多点协同传输技术。本文提出一个三维多层无人机—地面异构网络,其中无人机作为空中基站部署于不同高度。利用随机 ...
作者: Yongqiang Feng;Yaoxin Zheng;Luzhao Chen;Xiaodong Qu;Guangyou Fang (Aerospace Information Research Institute, Chinese Academy of Sciences, No. 9 Dengzhuang South Road, Haidian District, Beijing 100094, China Aerospace Information Research Institute, Chinese Academy of Sciences, No. 9 Dengzhuang South Road, Haidian District, Beijing 100094, China Beijing Automation Control Equipment Institute, Beijing 100074, China School of Information and Electronics, Beijing Institute of Technology, No. 5 South Street, Zhongguancun, Haidian District, Beijing 100081, China Aerospace Information Research Institute, Chinese Academy of Sciences, No. 9 Dengzhuang South Road, Haidian District, Beijing 100094, China)
出处: Applied Sciences 2022 Vol.12 No.2065 P2065
关键词: vibration interference field;aeromagnetic compensation;coherent noise suppression method
摘要: The low-frequency electromagnetic fields and magnetic anomalies generated by ships and other underwater platforms are widely recognized as important f ...
作者: Weihao WANG,Yifan JIANG,Zesong FEI,Jing GUO (School of Information and Electronics Beijing Institute of Technology)
出处: Frontiers of Information Technology & Electronic Engineering 2022 第23卷 第1期 P61-72
关键词: Unmanned;aerial;vehicle;Poisson;point;process;Coordinated;multipoint;(CoMP);Statistics;of;interference;Coverage;performance
摘要: To support the ubiquitous connectivity requirement of sixth generation communication, unmanned aerial vehicles (UAVs) play a key role as a major part ...
作者: Zhen ZHANG,Lijuan JIA,Ran TAO,Yue WANG (School of Information and Electronics,Beijing Institute of Technology)
出处: Science China(Information Sciences) 2022 第65卷 第5期 P184-195
摘要: In this paper, two new blind adaptive identification and equalization algorithms based on second-order statistics are proposed. We consider a practica ...
作者: Bowen Zeng,Zhongshan Zhang,Xuhui Ding,Xiangyuan Bu,Jianping An (School of Information and Electronics,Beijing Institute of Technology)
出处: China Communications 2022 第19卷 第1期 P166-185
关键词: space-air-ground;integrated;networks;UAV;communication;air;communication;controlling;predictive;decision;reliable;accessing
摘要: The cooperation of multiple Unmanned Aerial Vehicles(UAVs) has become a promising scenario in Space-Air-Ground Integrated Networks(SAGINs) recently du ...
作者: Yanfei Lin1;Zhiwen Liu1;Xiaorong Gao2; (1the School of Information and Electronics, Beijing Institute of Technology;2the Department of Biomedical Engineering, Tsinghua University)
出处: Tsinghua Science and Technology 2022 第27卷 第1期 P141-149
关键词: audio-visual;speech;auditory;noise;audio-visual;integration;Signal-to-Noise;Ratio;(SNR)
摘要: N400 is an objective electrophysiological index in semantic processing for brain. This study focuses on the sensitivity of N400 effect during speech c ...