Non-deforming three-dimensional image parallax quick adjusting method

A technology of stereoscopic images and adjustment methods, applied in image communication, stereoscopic systems, electrical components, etc., can solve problems such as graphic deformation, display screen voids, and information loss, and achieve the effects of reduced deformation, good subjective effects, and improved efficiency

Inactive Publication Date: 2014-06-04
FUZHOU UNIVERSITY
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Problems solved by technology

[0005] It can be concluded that there are problems in the parallax adjustment technology based on translation and stretching. The problems include: the traditional translation-based method has a perceivable deformation of the graphics after the depth perception is adjusted.
At the same time, when the image is panned, there will be holes and information loss at the edge of the display
The stretching method will also cause the deformation of the original graphics, and the information on the left and right edges of the image will disappear after the depth adjustment.

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] In order to eliminate the problem of stereoscopic image deformation caused in the process of parallax adjustment, the present invention proposes a deformation-free and continuous depth-domain parallax adjustment method. This method can be divided into the following steps for analysis: 1), determine a depth value that you want to adjust, that is, the depth change value DA; 2), calculate the parallax adjustment coefficient k=f(DA); 3), according to the human eye can perceive to the minimum error threshold S for depth-of-field changes DA =f(v,d), calculate the value range of the parallax adjustment coefficient k (k 1 ,k 2 ), where v is the viewing distance of the person from the screen, d is the distance of the stereoscopic image from the screen; 4), the original image is scaled according to a fixed stretching coefficient k, and the value range of...

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Abstract

The invention relates to a non-deforming three-dimensional image parallax quick adjusting method which is characterized by comprising the following steps that S01. a depth value to be adjusted is determined, namely a depth changing value DA; S02. a parallax adjusting coefficient k = f(DA) is computed; S03. according to the smallest field depth changing error threshold value SDA = f(v and d) which can be perceived by a human eye, the value range (k1 and k2) of the parallax adjusting coefficient k is computed, wherein v is the watching distance between a person and a screen, and d is the distance between a three-dimensional image and the screen; and S04. an original image is zoomed according to a fixed drawing coefficient k, the value range of k is limited in (k1 and k2), and the fact that deforming cannot be perceived is guaranteed. Compared with a traditional method, the deforming degree is lowered by more than 50%, three-dimensional vision subjectivity effect is better, and method efficiency for high-definition video is improved by 48%.

Description

technical field [0001] The invention relates to the technical field of parallax adjustment, in particular to a method for quickly adjusting the parallax of a distortion-free stereoscopic image. Background technique [0002] At present, some research results have been obtained on the depth perception adjustment technology of 3D stereoscopic video at home and abroad. J. Konrad [2] It is first proposed to estimate the original depth through two views, on this basis, adjust the depth with proportional weight, and finally synthesize a new view. There is some image distortion in this method. D. Kim et al. [3] Add the visual fatigue prediction method before adjusting the depth, and use the method based on view synthesis to adjust the parallax when the visual fatigue occurs in the video content. Chang Yuan et al. [4] A method for adjusting 3D stereoscopic content according to the viewer's comfort and preference is proposed. First, the disparity is estimated by a block matching...

Claims

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Application Information

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IPC IPC(8): H04N13/00H04N13/04
Inventor 兰诚栋李亚格吴宇笙杨秀芝陈建
Owner FUZHOU UNIVERSITY
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