中国科学院机构知识库网格系统: 检索

A novel software framework for magnetic particle imaging reconstruction 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY, 2022, 页码: 14
作者: Shen, Yusong; Hu, Chaoen; Zhang, Peng; Tian, Jie; Hui, Hui

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收藏 | 浏览/下载：32/0 | 提交时间：2022/03/17

magnetic particle imaging Python toolkit reconstruction scan simulation software framework

小动物多模成像系统中的软硬件模块开发与图像去噪方法研究 学位论文 OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院大学, 2015
施亮亮

收藏 | 浏览/下载：47/0 | 提交时间：2015/09/02

医学影像多模态成像软硬件开发图像去噪 Medical Imaging Multimodality imaging Hardware and software development Image denoising

光学分子影像手术导航系统的软件开发与临床应用 学位论文 OAI收割
工程硕士, 中国科学院自动化研究所: 中国科学院大学, 2014
作者: 叶津佐

收藏 | 浏览/下载：82/0 | 提交时间：2015/09/02

光学分子影像手术导航应用软件乳腺癌前哨淋巴结活检 Optical molecular imaging surgical navigation imaging software sentinel lymph node breast cancer

Design of reimaging F/1.0 long-wavelength infrared optical system (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

A reimaging F/1.0 long-wavelength infrared optical system is proposed. The design has a flexible opto-mechanical layout. The design process is as follows. Firstly the catadioptric reimaging system consists of two reflecting mirrors and a relay lenses. Two reflecting mirrors make up of the first imaging system and are therefore free of chromatic aberrations while low dispersion lenses were used in the reimaging system so the optical system do not need achromatic design for a high image quality. Then to correct high-order aberrations resulting from large relative aperture more parameters need to be used with aspheric or diffractive surfaces due to modern optic technology development. Here aspheric is selected for easily manufacture. Finally the design is completed with the help of ZEMAX software. The effective focal length of the objective is 120mm and the field of view (FOV) is 4. The simulated final design shows adequate image quality and the modulation transfer function (MTF) is close to diffraction limit. The effect of the surrounding environmental temperature is analyzed using the concept of thermal defocusing and the thermal compensation is discussed. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Design of stable image platform on airborne camera (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
作者: Yang L.; Yang L.

收藏 | 浏览/下载：15/0 | 提交时间：2013/03/25

Modulation transfer function resulting from random vibration was analyzed. To conclude that the effect of angular displacement was the major factor. Allowable MTF degradation was represented and 34dB reduction was achieved at frequency of 100HZ. With the help of MSC.ADAMS simulation software and convert allowable MTF degradation into stable system design parameters simulated curve proves correct for isolator which can guide perfect design for stabilization system. Based on the spatial mechanism and translational principle of parallelogram and the irrotational displacement mechanism was tested by optical method an irrotational displacement isolator was developed. It can meet the requirements of irrotational displacement and damp. An instance was given coupled angle is less than 8? it can satisfy the demand of aerial imaging. (2011) Trans Tech Publications.

Unified reconstruction framework for multi-modal medical imaging 期刊论文 OAI收割
JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY, 2011, 卷号: 19, 期号: 1, 页码: 111-126
作者: Dong, Di; Tian, Jie; Dai, Yakang; Yan, Guorui; Yang, Fei

收藏 | 浏览/下载：34/0 | 提交时间：2015/08/12

Unified Reconstruction Software Framework work flow CT freehand 3D ultrasound imaging acceleration schemes

A study on airborne-SAR data parallel processing using multi-threads technique 会议论文 OAI收割
2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011, Nanjing, China, June 24, 2011 - June 26,2011
Zhao, Yinghui

收藏 | 浏览/下载：22/0 | 提交时间：2014/12/07

Data handling Civil engineering Computer software selection and evaluation Imaging systems Motion compensation Remote sensing Synthetic aperture radar

Timing generator of scientific grade CCD camera and its implementation based on FPGA technology (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者: Li Y.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

The Timing Generator's functions of Scientific Grade CCD Camera is briefly presented: it generates various kinds of impulse sequence for the TDI-CCD video processor and imaging data output acting as the synchronous coordinator for time in the CCD imaging unit. The IL-E2TDI-CCD sensor produced by DALSA Co.Ltd. use in the Scientific Grade CCD Camera. Driving schedules of IL-E2 TDI-CCD sensor has been examined in detail the timing generator has been designed for Scientific Grade CCD Camera. FPGA is chosen as the hardware design platform schedule generator is described with VHDL. The designed generator has been successfully fulfilled function simulation with EDA software and fitted into XC2VP20-FF1152 (a kind of FPGA products made by XILINX). The experiments indicate that the new method improves the integrated level of the system. The Scientific Grade CCD camera system's high reliability stability and low power supply are achieved. At the same time the period of design and experiment is sharply shorted. 2010 Copyright SPIE - The International Society for Optical Engineering.

The design of high speed image acquisition system over Gigabit Ethernet (EI CONFERENCE) 会议论文 OAI收割
2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010, June 25, 2010 - June 27, 2010, Beijing, China
作者: Zhang W.; He X.; Zhang W.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

The applications based on traditional digital cameras have been limited by distance cost and networking. Gigabit Ethernet is a data transmission standard based on the IEEE 802.3 protocol brings several benefits to image transmission. In this paper we compare the main features of Gigabit Ethernet and traditional digital camera interfaces. And we design a high speed image acquisition system which overcomes these application limitations by allowing cameras to send imaging data over Gigabit Ethernet. In this system we design a highly efficient bidirectional conversion device based on FPGA converts imaging data from a camera to IP packets based on UDP protocol and sends it to PCs over inexpensive Cat-5 copper LAN cable. At the PC the Cat-5 cable plugs into a standard Gigabit Ethernet NIC(network interface card) eliminating the need for a frame grabber. An communications application software is used to acquire the network data construct and display the image. A simple and efficient acknowledge and resend mechanism was used to guarantee packet delivery. The system architecture and the communication protocol are discussed in details the experiment and results are presented in this paper. 2010 IEEE.

Design and implementation of a high speed CMOS imaging system (EI CONFERENCE) 会议论文 OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者: He X.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

In order to meet the needs of measurement of highspeed target the timing sequence of LUPA300 an array CMOS image sensor of CYPRESS is analyzed. The driving timing and control software is designed for the array CMOS sensor. High speed CMOS imaging system whose hardware platform is FPGA is emphasized. Real-time non-uniformity correction for CMOS sensor is implemented in the output stage. The experimental result shows that the system could control the CMOS sensor flexibly. The image is clear and stable. The maximum resolution of the image is 640H480V pixels and the system can operate up to 250 frames per second in full resolution. 2010 IEEE.