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: 2013-02-13
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 the remote sensing image preprocessing technology oriented to remote sensing image object extraction, which is used to manifest the spatial scale semantics of the remote sensing image processing object, and it manifests the remote sensing image scale features to the remote sensing image through a multi-scale semantic modulation method In the pixel, a scale explicit image is generated. The generated scale explicit image explicitly describes the scale characteristics of the remote sensing image, which can reflect the scale change characteristics of the remote sensing image. It belongs to the 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 scale manifest image modulation process is as follows: image 3 . It includes selecting the local feature type that can express the remote sensing image processing object, determining the observat...
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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 modulation method for multi-scale semantics of remote sensing images, which belongs to remote sensing image preprocessing technology for remote sensing image object recognition, and can be applied to the extraction of roads, buildings and other object objects based on remote sensing images. Background technique [0002] In the field of remote sensing image information extraction technology, scale has different meanings. First, it refers to the geometric scale of the real ground objects described by remote sensing images. This geometric scale is unknown before the ground feature information can be obtained through 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. A remote sensing image with a small observation scale (high resolution) can generate a remote sensing image with a large observat...
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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