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Camera calibration method for an infrared horizon sensor with a large field of view Research Article

Huajian DENG, Hao WANG, Xiaoya HAN, Yang LIU, Zhonghe JIN,roger@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1,   Pages 141-153 doi: 10.1631/FITEE.2200079

Abstract: The camera is mounted on a rotary table.three-step parameter estimation algorithm is proposed to avoid precisely measuring the positions of the camera

Keywords： Infrared horizon sensor     Ultra-field infrared camera     Camera calibration    

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Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1268-1276 doi: 10.1631/FITEE.1700556

Abstract: is a technique in photography that records the process of light propagation before it reaches a stationary state such that events at the light speed level can be observed. In this review we introduce three main models for with a : correlation model, frequency-domain model, and compressive sensing model. applications usually involve resolving the problem of light transport and separating the light rays arriving along different paths. We discuss two of the applications: imaging objects inside and recovering both the shape and texture of an object around a corner.

Keywords： Transient imaging     Time-of-flight (ToF) camera     Scattering media     Around corners    

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Molecular aspects of MERS-CoV

Ali A. Rabaan, Ali M. Bazzi, Shamsah H. Al-Ahmed, Jaffar A. Al-Tawfiq

Frontiers of Medicine 2017, Volume 11, Issue 3,   Pages 365-377 doi: 10.1007/s11684-017-0521-z

Abstract: Evolutionary changes in the virus, particularly in the viral spike protein which mediates virus-hostSynthetic peptides and candidate vaccines based on regions of the spike protein have shown promise in

Keywords： MERS-CoV     Saudi Arabia     spike protein     transmission     evolution     vaccine    

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Multi-aperture optical imaging systems and their mathematical light field acquisition models Review Article

Qiming QI, Ruigang FU, Zhengzheng SHAO, Ping WANG, Hongqi FAN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6,   Pages 823-844 doi: 10.1631/FITEE.2100058

Abstract:

Inspired by the compound eyes of insects, many s have been proposed to improve the imaging quality, e.g., to yield a high-resolution image or an image with a large field-of-view. Previous research has reviewed existing s, but few papers emphasize the which is essential to bridge the gap between configuration design and application. In this paper, we review typical s (i.e., , , and ), and then summarize general mathematical s for different configurations. These mathematical models provide methods for calculating the key indexes of a specific , such as the field-of-view and sub-image overlap ratio. The mathematical tools simplify the quantitative design and evaluation of imaging systems for researchers.

Keywords： Multi-aperture optical imaging system     Artificial compound eye     Light field camera     Camera array     Light    

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Interspecies transmission and evolution of the emerging coronaviruses: perspectives from bat physiology and protein spatial structure

Baicheng HUANG, Kegong TIAN

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2,   Pages 218-226 doi: 10.15302/J-FASE-2020324

Abstract: The relationship of spatial structural characteristics of the spike protein, a protein that is critical

Keywords： bat     coronavirus     evolution     host receptor     spike protein     transmission    

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1000× Faster Camera and Machine Vision with Ordinary Devices Article

Tiejun Huang, Yajing Zheng, Zhaofei Yu, Rui Chen, Yuan Li, Ruiqin Xiong, Lei Ma, Junwei Zhao, Siwei Dong, Lin Zhu, Jianing Li, Shanshan Jia, Yihua Fu, Boxin Shi, Si Wu, Yonghong Tian

Engineering 2023, Volume 25, Issue 6,   Pages 110-119 doi: 10.1016/j.eng.2022.01.012

Abstract: justify;">In digital cameras, we find a major limitation: the image and video form inherited from a film cameracomplementary metal-oxide-semiconductor (CMOS) sensors and integrated circuits, we have developed a vidar cameraBy treating vidar as spike trains in biological vision, we have further developed a spiking neural networkWe demonstrate the utility of the vidar camera and the super vision system in an assistant referee and

Keywords： Vidar camera     Spiking neural networks     Super vision system     Full-time imaging    

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Mass Spectrometry Analysis of Newly Emerging Coronavirus HCoV-19 Spike Protein and Human ACE2 Reveals Article

Zeyu Sun, Keyi Ren, Xing Zhang, Jinghua Chen, Zhengyi Jiang, Jing Jiang, Feiyang Ji, Xiaoxi Ouyang, Lanjuan Li

Engineering 2021, Volume 7, Issue 10,   Pages 1441-1451 doi: 10.1016/j.eng.2020.07.014

Abstract: this mass spectrometry (MS)-based study, we reveal that out of 21 possible glycosites in the HCoV-19 spike

Keywords： N-glycosylation     COVID-19     Spike protein     hACE2     Structure    

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Multi-camera systems for rehabilitation therapies: a study of the precision of MicrosoftKinect sensors

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 4,   Pages 348-364 doi: 10.1631/FITEE.1500347

Abstract: This paper seeks to determine how the overlap of several infrared beams affects the tracked position of the user, depending on the angle of incidence of light, distance to the target, distance between sensors, and the number of capture devices used. We also try to show that under ideal conditions using several Kinect sensors increases the precision of the data collected. The results obtained can be used in the design of telerehabilitation environments in which several RGB-D cameras are needed to improve precision or increase the tracking range. A numerical analysis of the results is included and comparisons are made with the results of other studies. Finally, we describe a system that implements intelligent methods for the rehabilitation of patients based on the results of the tests carried out.

Keywords： Kinect sensor     Rehabilitation system     Capture precision     Multi-camera system    

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A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 12,   Pages 1088-1098 doi: 10.1631/FITEE.1500111

Abstract: the continual increase in switching speed and rating of power semiconductors, the switching voltage spikethe driving circuit based on complex programmable logic devices (CPLDs), and the switching voltage spike

Keywords： Driving pulse edge modulation     Switching voltage spike     Complex programmable logic device (CPLD)     Active    

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Transient imaging with a time-of-flight cameraand its applications

Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1268-1276 doi: .org/10.1631/FITEE.1700556

Abstract: In thisreview we introduce three main models for transient imaging with atime-of-flight (ToF) camera:

Keywords： Transient imaging     Time-of-flight(ToF) camera     Scattering media     Around corners    

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Design and calibration of a new high-definition three-dimensional laparoscopic system

Jia TANG,Li-qiang WANG,Bo YUAN,Hong JIANG,Qi-ming ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 79-84 doi: 10.1631/FITEE.1400149

Abstract: high-definition (HD) 3D laparoscopic system including a dual channel optical system, two cameras, a cameraA modified pinhole camera model is used for camera calibration and a new method of depth measurement

Keywords： Dual optical channels     Three dimensional     Camera calibration     Pinhole model     Depth measurement     Laparoscopic    

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Light field imaging for computer vision: a survey Review Article

Chen JIA, Fan SHI, Meng ZHAO, Shengyong CHEN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1077-1097 doi: 10.1631/FITEE.2100180

Abstract: Light field (LF) imaging has attracted attention because of its ability to solve problems. In this paper we briefly review the research progress in in recent years. For most factors that affect development, the richness and accuracy of visual information acquisition are decisive. LF imaging technology has made great contributions to because it uses cameras or s to record the position and direction information of light rays, acquiring complete three-dimensional (3D) scene information. LF imaging technology improves the accuracy of depth estimation, image segmentation, blending, fusion, and 3D reconstruction. LF has also been innovatively applied to iris and face recognition, identification of materials and fake pedestrians, acquisition of s, shape recovery, and LF microscopy. Here, we further summarize the existing problems and the development trends of LF imaging in , including the establishment and evaluation of the LF dataset, applications under high dynamic range (HDR) conditions, LF image enhancement, virtual reality, 3D display, and 3D movies, military optical camouflage technology, image recognition at micro-scale, image processing method based on HDR, and the optimal relationship between spatial resolution and four-dimensional (4D) LF information acquisition. LF imaging has achieved great success in various studies. Over the past 25 years, more than 180 publications have reported the capability of LF imaging in solving problems. We summarize these reports to make it easier for researchers to search the detailed methods for specific solutions.

Keywords： Light field imaging     Camera array     Microlens array     Epipolar plane image     Computer vision    

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Molecular Characteristics, Functions, and Related Pathogenicity of MERS-CoV Proteins Review

Yan-Hua Li, Chen-Yu Hu, Nan-Ping Wu, Hang-Ping Yao, Lan-Juan Li

Engineering 2019, Volume 5, Issue 5,   Pages 940-947 doi: 10.1016/j.eng.2018.11.035

Abstract:

Middle East respiratory syndrome (MERS) is a viral respiratory disease caused by a de novo coronavirus—Middle East respiratory syndrome coronavirus (MERS-CoV)—that is associated with high mortality. However, the mechanism by which MERS-CoV infects humans remains unclear. To date, there is no effective vaccine or antibody for human immunity and treatment, other than the safety and tolerability of the fully human polyclonal Immunoglobulin G (IgG) antibody (SAB-301) as a putative therapeutic agent specific for MERS. Although rapid diagnostic and public health measures are currently being implemented, new cases of MERS-CoV infection are still being reported. Therefore, various effective measures should be taken to prevent the serious impact of similar epidemics in the future. Further investigation of the epidemiology and pathogenesis of the virus, as well as the development of effective therapeutic and prophylactic anti-MERS-CoV infections, is necessary. For this purpose, detailed information on MERS-CoV proteins is needed. In this review, we describe the major structural and nonstructural proteins of MERS-CoV and summarize different potential strategies for limiting the outbreak of MERS-CoV. The combination
of computational biology and virology can accelerate the advanced design and development of effective peptide therapeutics against MERS-CoV. In summary, this review provides important information about the progress of the elimination of MERS, from prevention to treatment.

Keywords： MERS-CoV     Spike protein     Structural protein     Accessory protein     Nonstructural protein    

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Title Author Date Type Operation

Camera calibration method for an infrared horizon sensor with a large field of view

Huajian DENG, Hao WANG, Xiaoya HAN, Yang LIU, Zhonghe JIN,roger@zju.edu.cn

Journal Article

Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Journal Article

Molecular aspects of MERS-CoV

Ali A. Rabaan, Ali M. Bazzi, Shamsah H. Al-Ahmed, Jaffar A. Al-Tawfiq

Journal Article

Multi-aperture optical imaging systems and their mathematical light field acquisition models

Qiming QI, Ruigang FU, Zhengzheng SHAO, Ping WANG, Hongqi FAN

Journal Article

Interspecies transmission and evolution of the emerging coronaviruses: perspectives from bat physiology and protein spatial structure

Baicheng HUANG, Kegong TIAN

Journal Article

1000× Faster Camera and Machine Vision with Ordinary Devices

Tiejun Huang, Yajing Zheng, Zhaofei Yu, Rui Chen, Yuan Li, Ruiqin Xiong, Lei Ma, Junwei Zhao, Siwei Dong, Lin Zhu, Jianing Li, Shanshan Jia, Yihua Fu, Boxin Shi, Si Wu, Yonghong Tian

Journal Article

Mass Spectrometry Analysis of Newly Emerging Coronavirus HCoV-19 Spike Protein and Human ACE2 Reveals

Zeyu Sun, Keyi Ren, Xing Zhang, Jinghua Chen, Zhengyi Jiang, Jing Jiang, Feiyang Ji, Xiaoxi Ouyang, Lanjuan Li

Journal Article

Multi-camera systems for rehabilitation therapies: a study of the precision of MicrosoftKinect sensors

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

Journal Article

A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

Journal Article

Transient imaging with a time-of-flight cameraand its applications

Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU

Journal Article

Design and calibration of a new high-definition three-dimensional laparoscopic system

Jia TANG,Li-qiang WANG,Bo YUAN,Hong JIANG,Qi-ming ZHU

Journal Article

Light field imaging for computer vision: a survey

Chen JIA, Fan SHI, Meng ZHAO, Shengyong CHEN

Journal Article

Molecular Characteristics, Functions, and Related Pathogenicity of MERS-CoV Proteins

Yan-Hua Li, Chen-Yu Hu, Nan-Ping Wu, Hang-Ping Yao, Lan-Juan Li

Journal Article