A dome ball screen projection imaging system based on multi-projection imaging

Abstract

The present invention provides a dome ball screen projection imaging system based on multi-projection imaging, which respectively projects and images the dome projection segmented image data received by a plurality of projection devices onto a part of the dome screen area of ​​the dome screen, by The dome projection segmented images projected by each projection device on the dome ball screen are spliced ​​together to present a complete image image, which effectively improves the overall imaging clarity and overall brightness of the imaging image of the system projection imaging, and avoids additional data processing load and limited by the technical conditions of the projection light source; in addition, the system also uses a series of optimization techniques to avoid image discontinuity, image splicing dislocation, part of the image missing, ghosting, and blurring in the overlapping projection parts of multiple projection devices , and there is a color block boundary between the projection overlapping area and the non-projection overlapping area, which affects the projection imaging quality, so as to ensure that the system has good projection imaging performance.

Description

technical field [0001] The invention relates to the technical fields of dome ball screen projection technology and image processing, in particular to a dome ball screen projection imaging system based on multi-projection imaging. Background technique [0002] The dome projection imaging system is more and more widely used, for example, it can be used as a dome astronomical imager, a dome movie projection system, etc. [0003] The current dome ball screen projection imaging system usually consists of a dome ball screen, imaging data processing equipment and a projection device. After necessary data processing such as storage and conversion, it is output to the projection device for projection, and only one projection device is needed, and the image is projected from the inner side of the hemispherical ball screen of the dome ball screen to the ball screen at a certain angle. The complete image can be projected and presented on the entire dome screen. [0004] However, due t...

AI Technical Summary

Problems solved by technology

For example, to improve the imaging definition of the system, the image definition of the image data source can be increased by increasing the pixel size and pixel density of the image data, so that the imaging definition of the system projection can be improved accordingly; but such a solution will make For image data sources with the same content, the data storage capacity increases geometrically, which takes up a lot of data storage capacity in the system. At the same time, the image data with doubled data volume also brings image data processing pressure to imaging data processing equipment, which needs to be improved accordingly. The hardware configuration of imaging data processing equipment to ensure the corresponding data storage performance and data processing performance will lead to increased equipment hardware costs and maintenance costs, and the large amount of data processing may also bring data processing delays, reduced processing effects, and even data processing. Format does not support and other aspects of the problem

To improve the overall brightness of the system imaging image, it can be solved by increasing the brightness of the projection light source of the projection device, but the increase in the brightness of the projection light source correspondingly leads to an increase in the heat dissipation of the light source, which brings new problems in the heat dissipation performance of the projection device, and the projection projection The brightness of the light source has always been the goal pursued by the technical field of projection equipment. However, under the current technical conditions, there is already a bottleneck in the technical realization of the further improvement of the brightness of the projection light source, which makes further pursuit of improving the brightness of the projection light source technically limited.

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