Robot vision image segmentation method based on multi-scale fractal dimension and neural network

A technology of robot vision and neural network, which is applied in the field of image segmentation based on multi-scale fractal dimension and neural network, can solve the problems of image over-segmentation, missed contour detection, position deviation, etc., and achieve the effect of improving the speed of segmentation

Inactive Publication Date: 2012-06-27
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

If the detection accuracy is improved, the false edges generated by noise will lead to unreasonable contours; if the noise immunity is improved, contour missed detection and position deviation wi

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  • Robot vision image segmentation method based on multi-scale fractal dimension and neural network
  • Robot vision image segmentation method based on multi-scale fractal dimension and neural network
  • Robot vision image segmentation method based on multi-scale fractal dimension and neural network

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific examples.

[0020] Such as figure 1 As shown, the robot vision image segmentation method based on multi-scale fractal dimension and neural network of the present invention includes the following steps:

[0021] Step (1): Take 1000 images of the sky, roads, and trees each (more than 1000 images per image is appropriate, and 1000 images in this specific embodiment), and perform a series of preprocessing on them to form a training library for images (Such as image 3 Shown),

[0022] Preprocessing includes: grayscale, histogram equalization, and adjustment of image size to a uniform size (length and width are both 2 t , To facilitate subsequent calculations).

[0023] Step (2): Perform wavelet transformation on each image in the image training library to obtain a low-frequency approximate image and m high-frequency detail images of each image, where m is a positive integer...

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Abstract

The invention discloses a robot vision image segmentation method based on multi-scale fractal dimension and a neural network, and belongs to the technical field of robot vision. The robot vision image segmentation method adopts a method combing image wavelet transformation and fractal dimension to perform image segmentation, uses a neural network method for distinguishing image areas where extracted characteristics belong and can achieve rapid image segmentation. The robot vision image segmentation method utilizes a character that fractal dimension of surface texture of different objects in nature is different, and can effectively segment three different areas of the sky, trees and roads. In addition, segmentation speed can be improved when image area segmentation is conducted on the basis of existing neural network training results, and the robot vision image segmentation method is suitable for a robot vision system in a movement process.

Description

Technical field [0001] The invention belongs to the field of robot vision, and particularly relates to an image segmentation method based on multi-scale fractal dimensions and neural networks. Background technique [0002] Image segmentation is widely used in various fields related to image processing, including remote sensing images, medical images, traffic images, and so on. Because image segmentation technology occupies an important position in the image processing process, it has been highly valued by researchers for many years, and thousands of segmentation algorithms have been proposed so far. Currently, the widely used segmentation algorithms include threshold-based segmentation methods, edge-based segmentation methods, region-based segmentation methods, and so on. Among them, for the threshold-based segmentation method, the key problem is to determine an optimal threshold. However, when the grayscale difference of the image is not obvious or the grayscale range of differ...

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Application Information

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IPC IPC(8): G06T7/00G06N3/02
Inventor 胡凯杨乐刘太磊曹晶晶王平谈玲
Owner NANJING UNIV OF INFORMATION SCI & TECH
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