Half ball curtain projection system
Technical field
The utility model relates to image projection device, refers to particularly a kind of half ball curtain projection system.
Background technology
Ball-screen projection technology is a kind of emerging display technique, it has broken projected image in the past can only be the limitation of planar graph, pass through optical lens, coordinate ball-screen projection apparatus for correcting, common three-dimensional emulation flat image is converted, project in a spherical screen, form a spheroid image.By advanced computer vision technique and projection display technique, can on ball curtain, demonstrate the dynamic effect of shock.
At present in disclosed half ball curtain projection system, mostly adopt fish eye lens to carry out projection, but because fish eye lens need be erected at hemisphere curtain centre of sphere place, blocked people's sight line, and centre of sphere place is the best pickup position of human eye, therefore, weakened people's three-dimensional impression, made troubles alternately also to people's body sense simultaneously.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the utility model provides a kind of half ball curtain projection system, this half ball curtain projection system utilizes short-focus lens with ball curtain picture apparatus for correcting, can in compared with short distance, project larger picture, thereby solved, in prior art, use fish eye lens to cause the technical matters of block vision.
The technical scheme that realizes the employing of the utility model object is: a kind of half ball curtain projection system, comprising:
Graphics workstation, comprises graphical information output terminal;
Ball-screen projection apparatus for correcting, comprises and corrects input end and correct output terminal, described rectification input end is connected with described image information output terminal;
Four-way fusion device, comprises a signal input part and four signal output parts, and described signal input part is connected with described rectification output terminal;
Four projectors, are connected with described four signal output parts respectively; And
Hemisphere curtain, the output image of described four projectors is projected on described hemisphere curtain.
Further, described half ball curtain projection system also comprises:
Body sense interactive device, is connected with described graphics workstation.
Further, described half ball curtain projection system also comprises:
Stereo set, is connected with described graphics workstation.
In technique scheme, described projector adopts short-focus lens.
In technique scheme, the diameter of described hemisphere curtain is 2~5 meters.
Graphics workstation output pattern information in the utility model half ball curtain projection system is in ball-screen projection apparatus for correcting, ball-screen projection apparatus for correcting becomes image represented this graphical information into fish eye images, then fish eye images is input in four-way fusion device, four-way fusion device is divided into fish eye images the image information of four parts, then the image information of these four parts is input to respectively in four projectors, each projector outputs to respective regions on hemisphere curtain by image, thereby is spliced into a secondary complete picture on whole hemisphere curtain.In addition, projector of the present utility model adopts short-focus lens, can, project larger picture compared with short distance, can not cause obstruction to vision, has solved prior art and has used fish eye lens to cause the problem that stops operator's sight line.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model half ball curtain projection system.
Fig. 2 is the front view of the utility model half ball curtain projection system.
Fig. 3 is the left view of the utility model half ball curtain projection system.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, the utility model half ball curtain projection system comprises: body sense interactive device 1, four projectors 2, be located at four short-focus lens 3, hemisphere curtain 4, four-way fusion device 5, ball-screen projection apparatus for correcting 6 and the graphics workstation 7 in four projectors 2 respectively.
Wherein, graphics workstation 7 can be computing machine or other intelligent terminal, for storing the information of graph image.Graphics workstation 7 comprises image information output terminal, and the information exchange of graph image is crossed the output of image information output terminal.
Ball-screen projection apparatus for correcting 6 comprises to be corrected input end and corrects output terminal, corrects input end and is connected with image information output terminal.The present embodiment balls curtain projection correction device 6 is for changing normal image into 180 ° of fish eye images.Ball-screen projection apparatus for correcting 6 carries out image processing by corresponding software to the normal image of input, thereby obtains 180 ° of fish eye images.By corresponding software is set, by obtaining fish eye images after the normal image image processing of input, be those skilled in the art's common technology means, repeat no more herein.
Four-way fusion device 5 comprises a signal input part and four signal output parts, and signal input part is connected with the rectification output terminal of ball-screen projection apparatus for correcting 6.Four-way fusion device 5 obtains needed four parts of images information after the fish eye images of input is processed, and this four parts of images information is spliced into an entire image after four projectors 2 are projected in respectively on hemisphere curtain 4.Four-way fusion device 5, for those skilled in the art institute common technology means, repeats no more herein, for example, can adopt the MVB anastomosing and splicing controller of Beijing Shan Tu Science and Technology Ltd..
Four projectors 2, are connected with four signal output parts of four-way fusion device 5 respectively, and the output image light signal of four projectors 2 is projected on hemisphere curtain 4.The camera lens 2 of the present embodiment projector adopts common short-focus lens 3, can compared with short distance, project larger picture.
The course of work of the present utility model is as follows: graphics workstation 7 exports image information in ball-screen projection apparatus for correcting 6 to, ball-screen projection apparatus for correcting 6 is transformed to 180 ° of fish eye images by Image Information Processing, and then ball-screen projection apparatus for correcting 6 is input to 180 ° of fish eye images in four-way fusion device 5.Four-way fusion device 5 is divided into 180 ° of fish eye images the image information of four parts, then the image information of these four parts is input to respectively in four projectors 2, each projector 2 will receive image information and be converted to light signal and output to respective regions on hemisphere curtain, and the picture that four video cameras 2 are exported is spliced into a secondary complete image on whole hemisphere curtain 4.
Hemisphere curtain 4 in the present embodiment is 180 ° of seamless hemisphere curtains of hard, on this hemisphere curtain 4, the image quality of Projection Display is determined by the diameter of hemisphere curtain 4 and the performance parameter of projector 2, diameter is larger, resolution, the lumen number of the projector 2 needing are larger, can guarantee so reasonable picture display effect, therefore, the diameter of the preferred hemisphere curtain 3 of the present embodiment is 2~5 meters.
In addition, in order to increase body sense effect of the present utility model, graphics workstation 7 of the present utility model is also connected with body sense interactive device 1, the virtual reality emulation software of the customization of operation on image workstation 7, virtual reality emulation software control body sense interactive device 1 is realized man-machine interaction, thereby strengthens people's said three-dimensional body sense.Body sense interactive device 1 can adopt the Kinect body sense interactive device of Microsoft.Meanwhile, graphics workstation 7 is gone back connecting sound equipment equipment 8, and stereo set 8 is synchronously play the sound effect in interactive process, has further increased people's body sense effect.
The utility model is by common short-focus lens 3, ball-screen projection apparatus for correcting 6 and four-way fusion device 5; make normal pictures be incident upon on hemisphere curtain 4 picture without obvious metamorphopsic distortion; and the centre of sphere place that beholder 9 can stand in hemisphere curtain 4 is watched and man-machine interaction; at the picture of watching hemisphere curtain 4 at sphere center position place, beholder 9 can be taken in the strong three-dimensional world of a when participating in the cintest shock, feeling of immersion, thereby improve people's said three-dimensional body sense.