Method for realizing displaying of high dynamic luminance range images by a plurality of projecting cameras

A technology of brightness range and projector, which is applied in photography, static indicators, wide-screen photography, etc., can solve the problem of not being able to project and display high dynamic brightness range images, and achieve the effect of improving lumens

Inactive Publication Date: 2009-10-14
杭州镭星科技有限公司
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Problems solved by technology

These projectors not only take on the important task of continuing to improve the projection lumens and brightness contrast, but also cannot project and display high dynamic brightness range images.

Method used

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  • Method for realizing displaying of high dynamic luminance range images by a plurality of projecting cameras
  • Method for realizing displaying of high dynamic luminance range images by a plurality of projecting cameras
  • Method for realizing displaying of high dynamic luminance range images by a plurality of projecting cameras

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] The method for realizing displaying high dynamic brightness range images by using multiple projectors includes the following steps:

[0023] 1) By adjusting the position, projection angle, and display size of each projector, the projection display areas of all projectors on the screen have overlapping areas;

[0024] Then place a video camera, which can completely shoot the picture projected by the projector on the screen. After the camera is fixed and the focal length is adjusted, the position and viewing angle of the camera cannot be changed, and the focal length cannot be changed.

[0025] Use a video camera to take a photo of the projected display area of ​​all projectors on the screen, and then outline the area where the high dynamic brightness range image will be displayed on the photo, which is recorded as the HDR area. The HDR area does ...

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Abstract

The invention discloses a method for realizing the displaying of high dynamic luminance range images by a plurality of projecting cameras. The method comprises the following steps: firstly, the position, the projecting angle and the display size of each projecting camera is adjusted to ensure that the projection display regions of all the projecting cameras on a screen have an overlap region; secondly, all sub controllers synchronistically receive high dynamic luminance range images, conducting coordinate conversion and color conversion on each pixel of the received images, and then synchronistically transmitting the processed images to the controlled projecting cameras; thirdly, a main controller is used for controlling all the sub controllers to synchronously receive the high dynamic luminance range images, and synchronously transmit the processed images to the controlled projecting cameras. The method has the advantages that the projecting lumen and the projecting luminance contrast can be improved, the black level can be better shown, and HDR images can be displayed by projecting, namely, the color value which exceeds the common range (0 to 255) can be displayed by projecting so as to ensure that the projecting image is full of sense of reality on the aspects of deepness, detail and color and the like.

Description

technical field [0001] The invention relates to a method for displaying high dynamic brightness range images, in particular to a method for realizing the display of high dynamic brightness range images by using multiple projectors. Background technique [0002] Projectors have developed into three series since their inception: Liquid Crystal Display (LCD) projectors, Digital Lighting Process (DLP) projectors and Cathode Ray Tube (CRT) projectors. These projectors not only take on the important task of continuing to improve the projection lumens and brightness contrast, but also cannot project and display high dynamic brightness range images. A high dynamic brightness range image is an HDR image, and HDR is the abbreviation of High-Dynamic Range. Contents of the invention [0003] The object of the present invention is to solve the deficiency of the prior art, that is, projectors cannot project and display high dynamic brightness range images, and propose a method for real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00G03B37/04
Inventor 华炜鲍虎军何凤明
Owner 杭州镭星科技有限公司
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