Hyperspectral image target detection method and device

A hyperspectral image and target detection technology, which is applied in the field of hyperspectral image target detection method and device, can solve the problems of data redundancy, large amount of calculation, large amount of hyperspectral image data, etc., and achieve low power consumption and strong parallel capability Effect

A hyperspectral image and target detection technology, which is applied in the field of hyperspectral image target detection method and device, can solve the problems of data redundancy, large amount of calculation, large amount of hyperspectral image data, etc., and achieve low power consumption and strong parallel capability Effect

CN113269726APending Publication Date: 2021-08-17INFORMATION SCI RES INST OF CETC
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  • Hyperspectral image target detection method and device
  • Hyperspectral image target detection method and device
  • Hyperspectral image target detection method and device

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Embodiment Construction

[0047] Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for thorough understanding of the application and to fully convey the scope of the application to those skilled in the art.

[0048] It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

[0049] In order to solve the above-mentioned technical problems, in order to be able to efficiently and quickly perform hyperspectral image target detection, this embodiment researches and analyzes existing processors, and fi...

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Abstract

The invention provides a hyperspectral image target detection method and device, the method is realized based on an FPGA development board, and the method comprises the steps: obtaining a to-be-detected hyperspectral image, and forming an original matrix of the hyperspectral image; calling an IP core realized based on an FPGA development board, and calculating the hyperspectral image matrix by adopting an RX algorithm to obtain a target information result matrix; and comparing the target information result matrix with a preset judgment threshold, and if the target information result matrix is greater than the judgment threshold, determining the target information corresponding to the target information result matrix as the target information of the hyperspectral image. The complex calculation process is transplanted through the FPGA device, and compared with a traditional processor, hyperspectral image target detection can be rapidly and efficiently carried out.

Description

technical field [0001] The application belongs to the technical field of hyperspectral image processing, and in particular relates to a hyperspectral image target detection method and device. Background technique [0002] Hyperspectral image (Hyperspectral Image, a spectral image with a spectral resolution in the order of 10l) can efficiently separate the background and Noise, find specific target information, so as to realize unsupervised target detection (also known as anomaly detection). [0003] The RX algorithm is one of the most common hyperspectral target detection algorithms at present. It assumes that the background and abnormal targets conform to the multivariate Gaussian distribution. By calculating the mean value and covariance matrix of the image, and comparing it with the set threshold to determine whether it is an abnormal value, it has Better detection performance and real-time processing efficiency. However, when implementing the algorithm, the actual hype...

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Application Information

Patent Timeline
17 Aug 2021
Publication
CN113269726A
IPC
G06T7/00; G06T7/136; G06T1/20
CPC
G06T7/0002; G06T7/136; G06T1/20; G06T2207/10032
Inventors
张国亮; 张芳沛