Image registration device based on patch characteristic description
A feature description and image registration technology, applied in the field of image processing, can solve problems such as accuracy, efficiency, stability and adaptability that cannot fully meet application requirements and registration difficulties
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Embodiment 1
[0042] see figure 1 , the image registration device of this embodiment includes a preprocessing module, a feature detection module, a feature description module, a feature matching module and a space transformation module;
[0043] (1) The preprocessing module is used to convert the reference image and the image to be registered into a grayscale image, and the conversion formula is defined as:
[0044] I(x,y=k(G(x,y)+R(x,y)+B(x,y))+2k(G(x,y)+R(x,y))+3k(x ,y)
[0045] Among them, I(x, y) represents the pixel gray value of the image at the coordinates (x, y), G(x, y), R(x, y), B(x, y) represent the coordinates (x, y) respectively The red, green and blue intensity values at y), k is the set weight factor, and the value range of k is [0.08,0.12];
[0046] (2) feature detection module, including local area feature detection sub-module and plaque feature detection sub-module, said local area
[0047] The domain feature detection submodule is used to detect the local area feature...
Embodiment 2
[0073] see figure 1 , the image registration device of this embodiment includes a preprocessing module, a feature detection module, a feature description module, a feature matching module and a space transformation module;
[0074] (1) The preprocessing module is used to convert the reference image and the image to be registered into a grayscale image, and the conversion formula is defined as:
[0075] I(x,y)=k(G(x,y)+R(x,y)+B(x,y))+2k(G(x,y)+R(x,y))+3k( x,y)
[0076] Among them, I(x, y) represents the pixel gray value of the image at the coordinates (x, y), G(x, y), R(x, y), B(x, y) represent the coordinates (x, y) respectively The red, green and blue intensity values at y), k is the set weight factor, and the value range of k is [0.08,0.12];
[0077] (2) feature detection module, including local area feature detection sub-module and plaque feature detection sub-module, said local area
[0078] The domain feature detection submodule is used to detect the local area feat...
Embodiment 3
[0104] see figure 1 , the image registration device of this embodiment includes a preprocessing module, a feature detection module, a feature description module, a feature matching module and a space transformation module;
[0105] (1) The preprocessing module is used to convert the reference image and the image to be registered into a grayscale image, and the conversion formula is defined as:
[0106] I(x,y)=k(G(x,y)+R(x,y)+B(x,y))+2k(G(x,y)+R(x,y))+3k( x,y)
[0107] Among them, I(x, y) represents the pixel gray value of the image at the coordinates (x, y), G(x, y), R(x, y), B(x, y) represent the coordinates (x, y) respectively The red, green and blue intensity values at y), k is the set weight factor, and the value range of k is [0.08,0.12];
[0108] (2) feature detection module, including local area feature detection sub-module and plaque feature detection sub-module, said local area
[0109] The domain feature detection submodule is used to detect the local area feat...
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