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Method for judging visual perception saturation phenomenon caused by image limit reduction

A visual perception, image technology, applied in the field of computer vision, can solve problems such as not much discussion

Pending Publication Date: 2022-05-06
CHINA JILIANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

How does this phenomenon affect visual perception? There is hardly much discussion in traditional computer vision

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  • Method for judging visual perception saturation phenomenon caused by image limit reduction
  • Method for judging visual perception saturation phenomenon caused by image limit reduction
  • Method for judging visual perception saturation phenomenon caused by image limit reduction

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Embodiment Construction

[0012] The present invention will be further described below with regard to specific examples, but the present invention is not limited only to these examples.

[0013] The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0014] The realization of the judging method of the phenomenon of visual perception saturation caused by image limit reduction of the present invention includes the following steps:

[0015] 1) Use different image reduction ratio K from large to small i Downsample the original image I to construct multiple reduced downsampled images I i , the purpose is to shrink the ima...

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Abstract

The invention discloses a method for carrying out limit reduction on an image and judging perception saturation by utilizing variance of a fixation point probability distribution entropy in a reduced image, which comprises the following steps of: (1) firstly, carrying out down-sampling on an original image I by using a reduction factor Ki from large to small, and constructing a series of reduced images Ii; (2) calculating a fixation point prediction map Si of the Ii, and taking a point of which the saliency is greater than the average value of the Si as a fixation point; (3) calculating the entropy Ei of the fixation point on i image scales according to the probability distribution of the fixation point in the Si; (4) within the scale change range of the Ki image, calculating the variance varE of the entropy Ei; and (5) near an image reduction limit point, the variance varE of the fixation point probability distribution entropy has a minimum value, and the value is an index of visual perception saturation and can be used as a representation of a salient target in the image.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method for judging the saturation phenomenon of visual perception caused by image shrinkage. Background technique [0002] In recent years, some neurophysiological and psychological experimental studies have started from tracking human eyes and observing their performance in the process of visual perception. Related experiments reveal that human beings rely on fixation eye movements to produce visual perception; visual perception is produced by a series of fixation and saccade processes. When gazing, the human eye focuses on a local area to collect information, which is processed by the visual neural network to generate perceptual stimuli. During the fixation period, the human eye is not fixed, but involuntarily shakes with a small amplitude-generating "micro-saccades", forming repeated scanning of the gaze area, and the relevant information is generated through the hu...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06V10/46
CPCG06T3/4046
Inventor 潘晨王涵宇王致畅边疆裴轶敏章涛
Owner CHINA JILIANG UNIV
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