公开(公告)号：US20160356650A1

公开(公告)日：2016-12-08

申请号：US15106696

申请日：2015-02-10

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu ZHANG ,  Zhihui YANG ,  Jiayu LIU ,  Yutian ZHOU ,  Shoukui YAO ,  Junqing ZHANG

IPC: G01J3/28 ,  H01Q15/14

CPC classification number: G01J3/28 ,  G01J3/0208 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/2823 ,  H01Q15/14

Abstract: The present invention discloses a low-orbit satellite-borne image-spectrum associated detection method and payload. The method includes: (1) detecting and tracking moving targets and dynamic phenomena based on a pixel offset compensation method; and (2) performing multi-dimensional characteristic analysis on infrared spectra of the moving targets and the dynamic phenomena, to identify the moving targets and the dynamic phenomena. The payload includes a two-dimensional servo turntable, an infrared reflector, a multispectral infrared optical system, an infrared imaging unit, a broadband infrared spectrum measuring unit, a data processing unit and a control unit. The present invention can achieve coaxiality of an infrared imaging optical path and a short/medium/long wave infrared spectrum measuring optical path, detect infrared image information and infrared spectra of moving targets and dynamic phenomena simultaneously and realize automatic detection, tracking, spectrum measurement and identification of multiple moving targets and dynamic phenomena in a scene, and has high identification efficiency and high tracking and positioning accuracy.

Abstract translation: 本发明公开了一种低轨道卫星传输的图像频谱相关检测方法和有效载荷。 该方法包括：（1）基于像素偏移补偿方法检测和跟踪移动目标和动态现象; （2）对运动目标的红外光谱和动态现象进行多维特征分析，识别移动目标和动态现象。 有效载荷包括二维伺服转台，红外反射器，多光谱红外光学系统，红外成像单元，宽带红外光谱测量单元，数据处理单元和控制单元。 本发明可以实现红外成像光路和短/中/长波红外光谱测量光路的同轴度，同时检测运动目标的红外图像信息和红外光谱和动态现象，实现自动检测，跟踪，光谱测量和 识别场景中的多个移动目标和动态现象，识别效率高，追踪定位精度高。

公开(公告)号：US20190316908A1

公开(公告)日：2019-10-17

申请号：US16455812

申请日：2019-06-28

Applicant: Huazhong University of Science and Technology

Inventor： Tianxu ZHANG ,  Yutian ZHOU ,  Zongyang CUI ,  Lei ZHANG ,  Shoukui YAO ,  Mingming QUE

IPC: G01C21/02 ,  G01C21/24 ,  B64G1/36 ,  G06K9/00 ,  G01S3/781 ,  G06F9/48 ,  G06F9/38

Abstract: A master control system for a remote-sensing satellite image processing device, the system including: a master control management module, a first FPGA module, and a second FPGA module. The master control management module is in connection and communication with the first FPGA module, the second FPGA module, and a housekeeping computer. The first FPGA module is in connection and communication with the second FPGA module and a remote-sensing satellite image processing device. The master control management module is adapted to perform assignment of tasks. The first FPGA module is adapted to communicate with a processor in the satellite image processing device, monitor an operation state of the satellite image processing device, send the operation state information to the master control management module, receive a task assignment command issued by the master control management module, and transmit the task assignment command to the satellite image processing device.

公开(公告)号：US20190325586A1

公开(公告)日：2019-10-24

申请号：US16458219

申请日：2019-07-01

Applicant: Huazhong University of Science and Technology

Inventor： Tianxu ZHANG ,  Hongtao YU ,  Shoukui YAO ,  Xiaobing DAI

IPC: G06T7/246 ,  G01J5/08 ,  G06T7/73 ,  G06T7/194 ,  H04N5/225

Abstract: A method of measuring infrared spectral characteristics of a moving target, the method including: establishing a multi-dimensional and multi-scale model with infrared spectral features of an object-space target, and extracting an object-space region of interest measurement model; performing target detection on an actually measured infrared image, and identifying position information for each ROI of a target; tracking the target, to obtain the target's pixel differences between two frames, as well as a moving direction of the target, and performing motion compensation for the target; and scanning the target, and after successfully capturing an image of the target being tracked, controlling an inner framework to point to each target of interest, and according to moving-direction information of the target, performing N-pixel-size motion in a direction shifted by 90° with respect to the moving direction, and activating a spectrum measuring module.

公开(公告)号：US20190323894A1

公开(公告)日：2019-10-24

申请号：US16458221

申请日：2019-07-01

Applicant: Huazhong University of Science and Technology

Inventor： Tianxu ZHANG ,  Fenglin WANG ,  Shoukui YAO ,  Lei LU ,  Xu CHENG

IPC: G01J5/00 ,  G06N20/00

Abstract: A method of attitude estimation of a spotted target. The method includes an offline training and an online estimation. The offline training includes establishing a three-dimensional geometric model of a target, performing region division according to the structure of the target, establishing an object-space temperature distribution model for each region of the target, establishing an infrared radiation transmission model of an intra-atmospheric target in six attitudes in observation by a detection system, constructing an image-space radiant energy model of the target in the six attitudes using the object-space temperature distribution model and the infrared radiation transmission model, and performing simulation calculation to obtain an infrared spectral curve of the spotted target regarding wavelength versus image-space-radiant-energy-of-target, so as to establish a mapping database regarding target-attitude versus spectrum.

公开(公告)号：US20160370227A1

公开(公告)日：2016-12-22

申请号：US15104905

申请日：2015-02-10

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu ZHANG ,  Xiaobing DAI ,  Xiangyan LIU ,  Jindong FEI ,  Li LIU ,  Hongtao YU ,  Shoukui YAO

IPC: G01J3/02 ,  H04N5/232 ,  G01J3/28 ,  G01J3/45 ,  G01H9/00 ,  H04N5/33 ,  H04N5/225

CPC classification number: G01J3/0202 ,  G01H9/004 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/2823 ,  G01J3/45 ,  G01J2003/2836 ,  H04N5/2251 ,  H04N5/2252 ,  H04N5/2254 ,  H04N5/23241 ,  H04N5/33

Abstract: The present invention discloses a moving platform infrared image-spectrum associated detection system, including an optical hood, a broadband optical system, a two-dimensional servo system, an infrared optical fiber, a Fourier interference spectrum module, an image-spectrum associated detection processing module, a power supply module, and a display module. Incident light enters from the optical hood to the broadband optical system, and is split by a spectroscope. Transmitted light is focused by a long-wave imaging lens group on an infrared detector for imaging. Reflected light is focused by a broadband spectrum lens group to an optical fiber coupler, enters the Fourier interference spectrum module through the infrared optical fiber to form an interference pattern, and undergoes Fourier transform to obtain spectral data. The image-spectrum associated detection processing module effectively merges infrared imaging and broadband spectral data, and the two-dimensional servo system is used to control a center orientation of the broadband optical system, thereby implementing target detection, tracking and spectrum measurement in a moving platform condition. The present invention can effectively isolate the system from disturbance of the moving platform, has the capability of simultaneously performing scene imaging, local area spectrum measurement, and multi-target tracking spectrum measurement, has a high speed and an adequate data amount, and has a broad application prospect.

Abstract translation: 本发明公开了一种移动平台红外图像相关检测系统，包括光学罩，宽带光学系统，二维伺服系统，红外光纤，傅里叶干涉光谱模块，图像相关检测处理 模块，电源模块和显示模块。 入射光从光学罩进入宽带光学系统，并被分光镜分离。 透射光通过长波成像透镜组聚焦在用于成像的红外检测器上。 反射光由宽带光谱透镜组聚焦到光纤耦合器，通过红外光纤进入傅里叶干涉光谱模块，形成干涉图案，进行傅里叶变换，得到光谱数据。 图像相关检测处理模块有效地融合了红外成像和宽带光谱数据，二维伺服系统用于控制宽带光学系统的中心定向，从而在移动平台中实现目标检测，跟踪和频谱测量 条件。 本发明可以有效地隔离系统与移动平台的干扰，具有同时执行场景成像，局域频谱测量和多目标跟踪频谱测量的能力，具有高速度和足够的数据量，并具有 广泛的应用前景。