Method for constructing projection array high-dynamic-range displaying system
A technology of high dynamic range and construction method, which is applied to the parts of TV system, image reproducer using projection device, TV, etc., can solve the problems of complex construction method, achieve the effect of direct and effective method and improve dynamic range
Active Publication Date: 2014-01-01
XIAN ANMENG INTELLIGENT TECH CO LTD
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Problems solved by technology
[0004] In order to overcome the disadvantages of complex construction methods of existing projection array display systems, the present invention provides a construction method of projection array high dynamic range display systems
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[0017] refer to Figure 1-4 . Taking nine projectors forming a 3*3 projector array as an example, the method for constructing a projection array high dynamic range display system of the present invention specifically includes the following steps:
[0018] 1. Fix 9 projectors with brackets in three rows and three columns, and ensure that each projector can be adjusted horizontally and vertically. In order to facilitate the alignment of the projected images, the 9 projectors are numbered sequentially, namely projector No. 1, projector No. 2, projector No. 3, projector No. 4, projector No. 5, projector No. 6 6, No. 7 projector 7, No. 8 projector 8, and No. 9 projector 9. The fifth projector 5 defining the central position is the reference projector. At the same time, the projection screen 10 is defined. Adjust and fix each projector so that the projection axes of the 9 projectors are perpendicular to the projection screen, and make the projection axes of No.
[0019] 2. Adju...
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The invention discloses a method for constructing a projection array high-dynamic-range displaying system to solve the technical problem that an existing method for constructing a projection array displaying system is complex. According to the technical scheme, a projection machine array perpendicular to a projection plane is fixedly installed, the displacement of a camera lens of a single projection machine is adjusted so enable a plurality of projection machines to be projected to one projection picture in a point-to-point mode, and an external controller is not needed. Low-dynamic-picture sequences acquired under different exposures are allocated to the corresponding projection machines to be projected respectively, and then a high-dynamic-range picture obtained after natural mixing is obtained. The camera lens displacement function and the automatic geometric correction function are adopted in the high-dynamic range displaying system constructed through the method, and the complex geometric correction that the projection machines project the same picture is removed, wherein modern projection machines have the both functions. Natural mixing is carried out on a multi-exposure low-dynamic-range picture through the projection array to display the high-dynamic-range picture, the method is simple, color changing is not needed, and the dynamic range of the displaying result can be improved manyfold.
Description
technical field [0001] The invention relates to a construction method of a projection array display system, in particular to a construction method of a projection array high dynamic range display system. Background technique [0002] High dynamic range research mainly includes two parts: high dynamic range imaging and high dynamic range display. The display terminals that can be purchased in the domestic and foreign markets are basically low dynamic range display devices, while high dynamic range display devices are mostly dedicated systems for research purposes. These dedicated high dynamic range display systems are often expensive and in an immature research stage . In order to solve the problem of high dynamic range display, a large number of high dynamic range researchers have devoted themselves to the tone mapping method, which maps high dynamic range images to low dynamic range images for display on low dynamic range display devices. The complexity of dynamic imaging...
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IPC IPC(8): H04N5/74H04N9/31G03B21/14
Inventor 白本督刘颖范九伦
Owner XIAN ANMENG INTELLIGENT TECH CO LTD