Method for modulating multiscale semanteme of remote-sensing image
A technology of remote sensing image and modulation method, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of not considering multi-scale change characteristics, affecting the image enhancement ability of remote sensing images, etc., and achieve the effect of maintaining position accuracy
Inactive Publication Date: 2015-05-13
INST OF SOFTWARE - CHINESE ACAD OF SCI
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In the above-mentioned patents, when using scales for analysis, scale features are implicit in the context of remote sensing images, and a single scale feature is used in the application without considering multi-scale change features
As a high-resolution remote sensing image, on the one hand, high precision should reflect the detailed features of the remote sensing image; Based on the fact that if the generated scale feature image cannot explicitly describe the scale feature, it will affect the image enhancement capability of the remote sensing image
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[0028] The present invention belongs to remote sensing image preprocessing technology for remote sensing image object extraction. It is used to visualize the spatial scale semantics of remote sensing image processing objects. It uses a multi-scale semantic modulation method to display remote sensing image scale features to remote sensing image Among the pixels, the scale manifest image is generated, and the generated scale manifest image explicitly describes the scale characteristics of the remote sensing image, which can reflect the scale change characteristics of the remote sensing image. It is a high-level remote sensing image feature and can be used for the recognition of high-level semantic remote sensing image objects. .
[0029] The flow chart of the scale visualization image modulation process is as follows image 3 . This includes selecting the type of local features that can express the remote sensing image processing object, determining the observation scale size range...
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The invention relates to a method for modulating multiscale semanteme of a remote-sensing image. The method comprises the following steps of: selecting local feature types of processing objects of the remote-sensing image; determining the size range of observation scales which are used by the processing objects of the remote-sensing image; partitioning the levels of the observation scales of the processing objects of the remote-sensing image; generating single-pixel feature value sequences; generating multiscale feature values of pixels; and generating a scale manifesting image. According to the method, the internal consistency of the processing objects of the remote-sensing image is improved and the relative property between the processing objects of the remote-sensing image and a background is enhanced by utilizing the acquired scale manifesting image modulated by the principle. Test results prove that the multiscale feature-based scale manifesting image can reflect the actual condition of surface features well, so the method has high using value.
Description
Technical field [0001] The invention relates to a remote sensing image multi-scale semantic modulation method, belonging to remote sensing image preprocessing technology for remote sensing image feature target recognition, and can be applied to remote sensing image-based extraction of roads, buildings and other feature targets. Background technique [0002] In the field of remote sensing image information extraction technology, scale has different meanings. Firstly, it refers to the geometric scale of real features described by remote sensing images. This geometric scale is not known before the feature information can be obtained from remote sensing images; secondly, it refers to the observation scale. The observation scale is expressed as the resolution of the remote sensing image on the original remote sensing image. The remote sensing image with small observation scale (high resolution) can generate remote sensing image with large observation scale (low resolution) according to...
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IPC IPC(8): G06K9/46
Inventor 张金芳徐帆江赵军锁李亚平李邦昱黄志坚
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI