Multispectral image change detection method based on semi-supervised dimensionality reduction and saliency map
A multi-spectral image and change detection technology, which is applied in the field of image processing, can solve problems such as inability to realize automation, achieve the effects of reducing the number of false alarms and false detections, overcoming more false detections, and improving accuracy
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[0042] The present invention will be further described below in conjunction with the accompanying drawings.
[0043] combined with figure 1 , the specific steps to realize the present invention are described as follows:
[0044] Step 1, input two-temporal multispectral image.
[0045] At the same time, two sets of multispectral images in the same region and at different times are input, and one set of multispectral images is selected as the first temporal phase multispectral image, and the other set of multispectral images is selected as the second temporal phase multispectral image. In the embodiment of the present invention, the selected image is as figure 2 and image 3 shown. figure 2 All images in and image 3 All the images in are taken by Landsat7 satellite in a certain river area in Vichada Province, Colombia. figure 2 (a) is an image taken in the blue band of the Landsat7 satellite on November 20, 1999, which is used to represent the image of the first spectr...
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