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System and method for aligning sub-image projected on screen

A projection system and sub-image technology, applied in the field of projection systems, can solve problems such as affecting image quality

Inactive Publication Date: 2006-11-01
QISDA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a large-scale projected image cannot be achieved by a single projector, but several projectors must project sub-images on the screen separately, and then combine the projected sub-images to form a complete image
Therefore, there must be a problem of connecting and combining multiple sub-images, which also affects the quality of the image projected by the entire projection system

Method used

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  • System and method for aligning sub-image projected on screen
  • System and method for aligning sub-image projected on screen
  • System and method for aligning sub-image projected on screen

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Embodiment Construction

[0020] see figure 1 , figure 1 is a schematic diagram of a projection system 10 according to a first preferred embodiment of the present invention. The projection system 10 is used for projecting an image onto a screen 12 divided into N areas 13 , where N is an integer greater than 1.

[0021] Such as figure 1 As shown, the projection system 10 includes a processing apparatus (Processing apparatus) 14 , N projection apparatus (Projecting apparatus) 16 and at least one sensing apparatus (Sensingdevice) 18 . figure 1 In the example, N is equal to 2, that is, the screen 12 is divided into two areas 13 , and the processing device 14 includes two projection devices 16 . also in figure 1 In the example shown, only one sensing device 18 is shown in order to illustrate the first preferred embodiment of the invention.

[0022] The processing device 14 is used for dividing an input image into N sub-images. Each sub-image corresponds to an area 13 . In order to cooperate with the ...

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PUM

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Abstract

A projection system being used to project an image on N numbers of regions at screen is prepared as dividing an image to be N numbers of sub images by processing unit and receiving these sub images separately by N numbers of projection units for projecting N numbers of sub images on N numbers of region at screen, sensing sub image by at least one sensing unit and transmitting these sub images to processing unit being used to calculate multiple calibration diversity value between these sub images, regulating these sub images projected on screen to eliminate calibration diversity value according to multiple calibration diversity value.

Description

technical field [0001] The present invention relates to a projection system, in particular to a projection system for projecting an image onto a screen divided into N regions. Background technique [0002] With the advancement of optical technology and projection technology, as well as the impact of the downward trend of market prices, projectors with high resolution and large screens have become the best choice for corporate presentations, conferences, education and training, and even home entertainment. An integral part of the visual image. Therefore, the high image quality, high brightness, compact size, reasonable price and after-sales service requirements of projectors have become important indicators for consumers when purchasing. [0003] A single projector currently on the market can project an image with a maximum size of about 200 inches. Under the current pursuit of high quality of life, the size of the projection screen that the projector can project in the pas...

Claims

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Application Information

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IPC IPC(8): G03B21/00
Inventor 李昌鸿
Owner QISDA CORP