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A method and system for adjusting light field contrast of a multi-projection 3D system

A contrast, multi-projection technology, applied in the field of 3D system display, can solve the problems of poor display image quality and poor 3D experience, and achieve the effect of improving light field contrast, avoiding influence, and improving 3D image display quality

Active Publication Date: 2020-01-10
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The present invention provides a multi-projection 3D system light field contrast adjustment method and its system, which can adjust the contrast of the 3D image display light field in real time according to the actual reflected light brightness to provide good 3D image display quality, so as to solve the problem of existing 3D display screen display. Defects of poor image quality and poor 3D experience

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  • A method and system for adjusting light field contrast of a multi-projection 3D system
  • A method and system for adjusting light field contrast of a multi-projection 3D system
  • A method and system for adjusting light field contrast of a multi-projection 3D system

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[0054] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0055] see figure 1 Shown, a kind of multi-projection 3D system light field contrast adjustment method of the present invention, it comprises the following steps:

[0056] S1. Based on the luminous brightness calculation function of a single projector, obtain a reference light field brightness map sequence, and obtain the perceived intensity of the reference light field brightness map sequence according to the contrast measurement function;

[0057] S2. Based on the calculation function of the luminance of multiple projectors, the fusion light field brightness map sequence is obtained, and based on the contrast measurement function, the perceived intensity of the fusion l...

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Abstract

The invention discloses a multi-projection 3D system optical field contrast adjusting method and a multi-projection 3D system optical field contrast adjusting system, wherein a display model aiming ata multi-projection 3D system is established and perceptibility of reference optical field brightness and perceptibility of fused optical field brightness are acquired, consequently, contrast minimumvalues of a fused optical field and a target optical field are calculated through a contrast difference measuring function, and then, according to an optimal hue mapping curve, a fused optical field brightness graphic sequence is adjusted. Thus, the optical field contrast of display of a 3D display screen is improved, influence on 3D display effects in a 3D display process caused by reflected light is avoided, and the display effects of 3D images in the 3D display process are improved.

Description

technical field [0001] The present invention relates to the technical field of 3D system display, and more specifically, to a method and system for adjusting light field contrast of a multi-projection 3D system. Background technique [0002] The 3D display system of the multi-projection system has the characteristics of scalable size, high resolution and high dynamic range. At present, the principle of a typical multi-projection 3D stereoscopic display system is as follows: figure 1 As shown, it consists of a projection array and a 3D projection screen. According to the structure of the 3D projection screen, this technology can be divided into 3D display systems based on holographic optical elements, 3D display systems based on cylindrical lens gratings or slit gratings, and 3D display systems based on the combination of the above elements and other optical elements. Based on the positional relationship between the projection array and the 3D projection screen, it can be d...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/363H04N13/324H04N9/31
CPCH04N9/3147
Inventor 桑新柱王鹏解松林陈铎郭楠崔璨曾霞颜玢玢
Owner BEIJING UNIV OF POSTS & TELECOMM
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