Image multi-strength edge detection method having visual photosensitive layer simulation function

An edge detection and photosensitive layer technology, applied in the field of visual neural computing, can solve the problems of edge weakening and unsatisfactory edge detection effect.

Active Publication Date: 2014-08-13
未石互动科技股份有限公司
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Problems solved by technology

In practical applications, there are different degrees of edge weakening in images, such as the common gradient edge, and the detection effect of traditional detection methods is not ideal for such edges

Method used

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  • Image multi-strength edge detection method having visual photosensitive layer simulation function
  • Image multi-strength edge detection method having visual photosensitive layer simulation function
  • Image multi-strength edge detection method having visual photosensitive layer simulation function

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Embodiment Construction

[0020] The present invention utilizes the important functions of excitatory (ON) and inhibitory (OFF) photoreceptor layer neurons in information encoding. The neuron detects the influence of multi-intensity edges to characterize the multi-intensity edges in the image; by adjusting the moving scale to achieve noise filtering to obtain the final image multi-intensity edges. The invention faces the problem of image multi-intensity edge detection, constructs a neuron network to simulate some important characteristics of the visual photosensitive layer, and can obtain a satisfactory edge detection effect compared with the traditional method.

[0021] The specific implementation method of the present invention is as figure 1 and figure 2 shown.

[0022] Step (1) to the original image I 0 (i,j) (i=1,2LM; j=1,2LN), move at a certain distance scale, set the moving distances in the horizontal and vertical directions of the image as xmove and ymove respectively, for the original imag...

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Abstract

The invention relates to an image multi-strength edge detection method having the visual photosensitive layer simulation function. In the image preprocessing stage, in order to avoid the adaptability of a visual system, the multi-direction and multiscale moving operation is performed on an image; a photosensitive layer nerve cell network model is established, and the rejection capability or enhanced synapsis among nerve cells are judged and realized according to nerve cell action potential granting characteristic in the time window; and the detection result of the image multi-strength edge is acquired through the photosensitive layer nerve cell network response mode difference between the mode before the moving image is inputted and the mode after the moving image is inputted. According to the invention, the nerve cell synapsis connection characteristic and the nerve cell action potential granting mechanism are taken into account, and some significant characteristics of the visual photosensitive layer are simulated, so the detection of the image multi-strength edge can be effectively realized.

Description

technical field [0001] The invention belongs to the field of visual neural computing, and relates to an image multi-intensity edge detection method imitating the function of a visual photosensitive layer. Background technique [0002] The edge or outline of an image presents a characteristic of a sudden change in pixel grayscale or brightness, which is an important attribute of an image. Therefore, edge detection is an early step in image processing, analysis and understanding, and the detection effect will directly affect the performance of the entire system. In practical applications, there are different degrees of edge weakening in images, such as the common gradient edge, and the detection effect of traditional detection methods is not ideal for such edges. Contents of the invention [0003] The present invention considers: (1) for the situation that there are multi-intensity edges in the image, the effect of traditional method edge detection is unsatisfactory, especi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00
Inventor 范影乐罗佳骏武薇王典
Owner 未石互动科技股份有限公司
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