Method for constructing integral discrete degraded image in one-way movement by weighted superposition of sub-images

A degraded image, weighted superposition technology, applied in the generation of 2D images, image data processing, instruments, etc., can solve the problems of long operation time, unintuitive degradation method, short operation time, etc., to achieve easy understanding, intuitive degradation process, The effect of short computation time

Active Publication Date: 2015-04-01
HARBIN INST OF TECH
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Problems solved by technology

[0014] The present invention is aimed at the shortcoming of long operation time of the space domain convolution degeneration method, and the shortcoming of the frequency domain Fourier transform degeneration method which is not intuitive and difficult to understand, and needs to move the image after the inverse Fourier transform, and proposes A method for constructing a discrete degraded image with weighted superimposition of sub-images; this method not only has a short calculation time, but also has an intuitive and easy-to-understand degradation process, and does not need to readjust the image

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  • Method for constructing integral discrete degraded image in one-way movement by weighted superposition of sub-images
  • Method for constructing integral discrete degraded image in one-way movement by weighted superposition of sub-images
  • Method for constructing integral discrete degraded image in one-way movement by weighted superposition of sub-images

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Embodiment Construction

[0047]The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] figure 1 In order to obtain an original image with a resolution of 256×256 without degradation, in this embodiment, the original image is uniformly accelerated from its initial position along the column direction for a distance of 10 pixels. And at its initial position, the motion velocity of the original image is:

[0049] v 1 = 2 a · 2 L

[0050] In the formula, v 1 is the motion velocity of the original image, a is the acceleration, and L is the pixel pitch.

[0051] The whole unidirectional motion discrete degraded image construction method of sub-image weighted superimposition includes the following steps:

[0052] a. According to the original image with a resolution of 256×256 moving a dista...

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Abstract

The invention discloses a method for constructing an integral discrete degraded image in one-way movement by weighted superposition of sub-images, belongs to a section using more than one image in the field of general image data processing or generation, and particularly relates to a method for constructing a blurred image in discrete movement. The method includes constructing n sub-images fig (i=1, 2, ..., n) according to n-pixel movement distances of an original image with the resolution of MXN along a row or column direction of the original image; and then carrying out weighted linear superposition for the obtained n sub-images according to a formula. The n is smaller than the N if the original image moves along the row direction, and the n is smaller than the M if the original image moves along the column direction. In the formula, w is a weighting coefficient, and a fig is the constructed discrete degraded image. The method for constructing the discrete degraded image has the advantages that operation time is short, a degradation process is visible and is easy to understand, and the image does not need to be readjusted.

Description

technical field [0001] The method for constructing whole unidirectional motion discrete degraded image by sub-image weighted superposition belongs to the field of image data processing or generation by using more than one image, and in particular relates to a discrete motion blurred image construction method. Background technique [0002] If there is relative motion between the image sensor and the target during imaging, the resulting image will suffer from motion blur. This phenomenon is very common in the fields of daily life, industrial production, and aerospace. Although motion blurred images can show artistic beauty in some special fields, in most fields such as transportation and industrial production, motion blurred images can only give us the recognition of the target in the image and the detailed information of the target. Get in trouble. For example, the electronic eye in the field of transportation, if the blurred degree of the captured image has brought difficu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00
Inventor 谭久彬赵烟桥刘俭
Owner HARBIN INST OF TECH
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