Hyperspectral target tracking method based on joint spectral dimension reduction and feature fusion

A target tracking and spectral dimensionality reduction technology, applied in character and pattern recognition, image data processing, instruments, etc., can solve the problems of estimation error, poor real-time performance, and large amount of calculation.

Active Publication Date: 2021-04-02
南京信息工程大学滨江学院
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Problems solved by technology

The disadvantage of this method is that this method processes hyperspectral video of all bands simultaneously, and uses the spectral correlation filter Spe-CF and spatial correlation filter Spa-CF to estimate and determine the target position, and pre-training is required Filter, with a large amount of calculation, poor real-time performance, and when the target is occluded and deformed, it is easy to fail to track
The shortcomings of this method are: it is necessary to build a target sample library to train the deep convolutional network, which requires a large amount of calculation, and the algorithm is easily affected by target occlusion and deformation, resulting in estimation errors and tracking deviations.

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  • Hyperspectral target tracking method based on joint spectral dimension reduction and feature fusion

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[0081] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The present invention is described in further detail now in conjunction with accompanying drawing.

[0082] Embodiments of the present invention provide a hyperspectral target tracking method based on joint spectral dimensionality reduction and feature fusion, such as figure 1 The method shown is:

[0083] Step 1: Load the first frame image of the hyperspectral image sequence, and preprocess the first frame image of the hyperspectral image sequence;

[0084] Specific steps are as follows:

[0085] Step 101, read in the first frame image of the hyperspectral image sequence;

[0086] Specifically, ...

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Abstract

The invention provides a hyperspectral target tracking method based on joint spectral dimension reduction and feature fusion. The hyperspectral target tracking method comprises the following steps: firstly, performing dimension reduction processing on an original hyperspectral image sequence by utilizing a joint spectral dimension reduction method based on multi-dimensional scaling and principal component analysis; respectively extracting four pairs of features of the image sequence obtained after dimension reduction processing, and fusing the four pairs of features; sending the fused featuresto a kernel correlation filter, and obtaining four weak response graphs based on the first to fourth features; weighting the weak response graph by using the weight coefficient to obtain a strong response graph; taking the position of the maximum value in the strong response graph as the position of the target; and adaptively updating the parameters of the base sample and the weight coefficient.According to the invention, the defects of large calculation amount and poor real-time performance in the prior art are overcome, the target tracking speed in the hyperspectral image sequence under the complex background is increased, and a good tracking effect is achieved when the target deforms and is shielded.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a hyperspectral target tracking method based on joint spectral dimensionality reduction and feature fusion. Background technique [0002] Target tracking in hyperspectral image sequences under complex background is an important part of hyperspectral image processing technology. practical application. In recent years, target tracking methods based on improved kernel correlation filtering have been widely used in the field of computer vision. The kernel correlation filtering algorithm uses the gray features of the basic samples to track, but the gray features of the hyperspectral target are not enough to distinguish the complex background from the target in the background. [0003] In the existing target tracking method, by extracting the spectral features in the target search area, training the spectral correlation filter Spe-CF, selecting the target search ...

Claims

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Application Information

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IPC IPC(8): G06T7/246G06T3/40G06T5/20G06K9/62
CPCG06T7/246G06T3/40G06T5/20G06T2207/10036G06F18/2135G06F18/241G06F18/253
Inventor 赵东汪磊李晨张见牛明郜云波王青马弘宇陶旭刘朝阳杨成东
Owner 南京信息工程大学滨江学院
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