Stereo image comfort level and contrast ratio range measurement method based on significant area

A technology of stereoscopic images and measurement methods, applied in the field of image processing, can solve the problems of not fully considering the visual characteristics of the human eye, achieve reasonable and feasible quantitative standards, and make up for the time-consuming and labor-intensive effect

Inactive Publication Date: 2018-02-09
TIANJIN UNIV
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Problems solved by technology

Literature [12] quantitatively studied the influence of contrast factors on the comfort of stereoscopic images. This paper adopts the research method based on the whole stereoscopic image without fully considering the visual characteristics of human eyes.

Method used

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  • Stereo image comfort level and contrast ratio range measurement method based on significant area
  • Stereo image comfort level and contrast ratio range measurement method based on significant area
  • Stereo image comfort level and contrast ratio range measurement method based on significant area

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Embodiment Construction

[0034] Providing quantitative standards for the production of 3D content is a key issue to be solved urgently in the popularization of 3D products. The present invention combines the visual attention mechanism for the first time to quantitatively study the influence of contrast factors on the visual comfort of stereo images through a large number of subjective experiments. The present invention first combines the plane saliency map and the stereo disparity map to obtain the stereo saliency map, then uses the fuzzy membership and the mask to optimize it to obtain the final salient stereo image, and uses the eye tracker to verify its rationality; and then contrast the left and right views. Transform and perform subjective experiments. After data screening, the comfortable contrast matching map and the difference map of the significant stereo image are obtained. The experimental results show that the contrast difference threshold of the left and right views changes with the contra...

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Abstract

The invention belongs to the image processing field and aims at providing a reasonable and feasible quantitative standard for making of a stereo content. A stereo image comfort level and contrast ratio range measurement method based on a significant area comprises the following steps of 1) extracting a stereo significance graph: combining a two-dimensional image significance graph and a stereo image parallax graph so as to acquire the stereo significance graph; 2) acquiring a significant stereo image: carrying out optimization processing on the stereo significance graph, and carrying out a fuzzy principle and mask optimization on the stereo significance graph so as to acquire the significant stereo image; 3) carrying out a subjective experiment: carrying out contrast ratio conversion on the significant stereo image under the condition of taking 0.1 as a step and carrying out the subjective experiment; and 4) acquiring a comfort and contrast ration matching graph and a comfort and contrast ration difference graph. The method is mainly applied to image processing.

Description

Technical field [0001] The present invention belongs to the field of image processing, and relates to the research of factors affecting the viewing comfort of stereo images, and in particular to a method for quantitative research of comfort contrast based on prominent regions of stereo images. Background technique [0002] Stereoscopic display technology not only brings users an immersive visual experience, but also makes viewers feel uncomfortable to varying degrees. Visual fatigue, decreased visual sensitivity, decreased binocular adjustment ability and other visual discomforts are considered to be the main obstacles to the rapid expansion of 3D products in the market [1][2] . Studies have shown that the main factors that cause visual discomfort include: viewing environment, stereoscopic display equipment, human physiological and psychological conditions, and stereoscopic content. The lack of comfortable stereoscopic content is one of the important factors restricting the popul...

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Application Information

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IPC IPC(8): G06T7/00G06T7/12G06T7/136G06T7/90
CPCG06T7/0002G06T7/12G06T7/136G06T7/90G06T2207/10021G06T2207/30168
Inventor 李素梅胡佳洁朱兆琪侯春萍
Owner TIANJIN UNIV
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