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Circular curtain camera system

A camera system and ring screen technology, applied in the field of photography, can solve problems such as difficulty in fusion

Inactive Publication Date: 2009-10-07
乔楠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned prior art can realize the shooting and projection of ring-screen images, since each individual camera picture is independent of each other, it is difficult to integrate, and there is still a big difference from the real ring-screen projection.

Method used

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  • Circular curtain camera system
  • Circular curtain camera system
  • Circular curtain camera system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0073] In general, since the screens of most ring screen theaters are vertical, vertical images are naturally needed to match them, so it is necessary to shoot ring screen images horizontally; therefore, in figure 1 In the shown embodiment, the camera shoots vertically upwards, and the shooting angle of the virtual image formed by the conical mirror is horizontal. face in front figure 1 In the relevant description of the embodiment, it is also pointed out that the figure 1 The entire system shown is rotated at a certain angle to meet the need for oblique shooting in some special cases.

[0074] Embodiment 2 proposes another kind of implementation scheme that meets the needs of special shooting angles of view, which is the same as figure 1 The main difference of the shown embodiment is that the conical reflector is still vertically arranged with the top of the cone downward, but the camera does not adopt a shooting direction parallel to the central axis of the conical reflect...

Embodiment 3

[0077] figure 1 The conical mirror in the shown embodiment is a positive conical mirror, and the cone angle is 90 degrees, and the conical mirror surface forms an angle of 45 degrees with the horizontal plane. Vertical viewing angle and mirror size of conical mirrors. However, it is easy to know that the cone angle can be changed, but different angle changes will lead to different effects, and those skilled in the art can choose and apply according to needs. pass below Figure 10a , Figure 10b , Figure 10c The comparison is described in detail, for the sake of comparison, Figure 10a , Figure 10b and Figure 10c Both ensure the horizontal shooting of virtual images.

[0078] exist Figure 10a , the conical mirror surface forms an angle of 60 degrees with the horizontal plane, that is, the cone angle is 60 degrees. In order to realize horizontal shooting, the shooting direction of the camera is adjusted and rotated to the right by a certain angle. Preferably, the sh...

Embodiment 4

[0083] Through the introduction of Embodiment 3, it can be known that the cone angle of the conical reflector can be changed. figure 1 The conical reflector in the illustrated embodiment is a positive conical mirror, that is, the angles between the conical reflector surface and the horizontal plane in all directions are the same, and the cross section of the conical reflector is a circle. while embodiment 4 and figure 1 The biggest difference of the illustrated embodiment is that the angles formed by the conical reflectors in all directions and the horizontal plane are not exactly the same, for example, they vary between 30-60 degrees, or between 42-48 degrees. Degrees and angles vary, that is, the cross-section in Example 4 is not a regular circle.

[0084] Since the cross-section in Embodiment 4 is not a regular circle, it is possible that the angles of the conical mirrors faced by each camera are different. From the introduction of Embodiment 3, it can be known that the co...

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Abstract

The invention provides a ring-screen camera system, comprising: a conical reflector, the conical reflector has a continuous mirror surface, and is placed on a column with the top of the cone downward; a plurality of camera devices, the The camera devices are distributed on the side of the column according to the size of the shooting angle of view, and the shooting angles of each camera device overlap each other; the camera devices shoot upwards; The virtual image is located on the central axis of the conical mirror. The invention innovatively uses a conical reflector in the ring-screen camera system, and adopts the conical reflector to collect images, which can make the pictures collected by adjacent cameras have a certain overlapping area, thereby ensuring that the images can be captured by the computer. Adjacent images are merged to form a panoramic screen.

Description

technical field [0001] The camera field of the present invention, in particular, relates to a ring screen camera system. Background technique [0002] A ring screen movie refers to a movie in which the captured scene images within a 360-degree range in the horizontal direction are projected on a ring screen, so that the audience in the screen circle can get a strong sense of presence. According to the number of cameras (or projectors) used, it can be divided into two categories: single-camera surround-screen movies and multi-camera surround-screen movies. At present, the widely used in the world is a ring-screen camera composed of 9 35mm cameras, which shoots 360-degree scenes around through the mirror, and then projects them on a ring-shaped screen composed of 9 screens, equipped with 11 channels of stereo sound reproduction. For example, the Chinese Patent No. 93111105.6 patent document discloses a ring-screen TV projection system, including nine sets of TV projectors of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B35/08G03B35/20G03B35/00G03B37/04G02B5/08G02B5/10H04N5/225
Inventor 乔楠
Owner 乔楠
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