CN205453890U - Camera panorama image device is swept to line - Google Patents

Abstract

The utility model discloses a camera panorama image device is swept to line, which comprises a housin. Driving motor fixes in the casing, rotary platform, one end has the support of fixed camera, and the other end has the balancing piece, the transmission shaft, fixed through transmission bearing and casing, an axle head with rotary platform lies in the partial fixing of support and balanced interblock, drive gear group, install in casing and transmission driving motor's motor shaft with the transmission shaft, central processing unit installs in the casing, and the image signal and the controlled drive motor that locate the output of reason camera rotate. The utility model provides an use the linear array camera in the motion process, 360 degrees panoramic imageries / take video method, and can guarantee that image / video of taking is indeformable, and resolution ratio is high, when it rotates at a high speed at rotary platform, the balance of assurance camera, it is by the drive mechanism that transmission shaft and drive gear constitute, the vibrations that reduce the transmission shaft as far as possible and receive.

Description

Camera panoramic imaging device swept by line

Technical field

This utility model relates to 360 ° of panorama camera fields, generates the field of 360 ° of panoramic picture/videos particularly to line-scan digital camera scanning, and camera panoramic imaging device swept by specifically a kind of line.

Background technology

360 ° of current panoramic imageries (panoramic) use the whole scene of multiple cameras capture often, software is used to carry out seamless spliced one-tenth one greatly in eyes normally effective visual angle (about level 90 °, vertical 70 °) or eyes remaining light visual angle (about level 180 °, vertical 90 °), so the photo of 360 ° of full scene scopes.The forms of expression such as 360 ° of panoramas and conventional modeling, picture are compared, and its advantage is mainly reflected in following several respects: (1) strong sense of reality, and based on producing and generating true picture, comparing other modelings, to generate objects more genuine and believable；(2) can express more image information by ratio than plane picture, it is possible to arbitrarily control, interactive performance is good；(3) through the perspective of image is processed simulation true three-dimension outdoor scene, feeling of immersion is strong, brings sensation on the spot in person to audience；(4) generating conveniently, fabrication cycle is short, and cost of manufacture is low；(5) file is little, and transmission is convenient, is suitable for Web vector graphic, issues form various, is suitable for various forms of application.But show for making 360 ° of panoramas, generally require the multiple cameras of employing (4,6,8,10,16 etc.) and catch whole scene simultaneously, re-use software and carry out seamless spliced process.There are two technical difficulties: the synchronization step of (1) multiple cameras capture scene is difficult to ensure that in the middle of this；(2) increasing substantially due to panoramic picture/video resolution, the requirement to processor is greatly improved.

Utility model content

The purpose of this utility model is to overcome the part in disadvantages mentioned above, hereby provides a kind of line to sweep camera panoramic imaging device, comprising: housing；Drive motor, be fixed in housing；Rotation platform, one end has the support of fixed camera, and the other end has balance weight；Power transmission shaft, is fixed with housing by drive bearing, and the part that an axle head and described rotation platform are positioned between support and balance weight is fixed；Driving gear set, is installed on housing and transmission drives the motor shaft of motor and described power transmission shaft；Central processing unit, is installed in housing, the picture signal of place's reason camera output.

Preferably, the two ends of described rotation platform are respectively provided with regulating tank, and described support and balance weight are respectively provided with installing hole, and bolt is after installing hole and regulating tank, and locking support or balance weight are in rotation platform.

Preferably, it is connected between described rotation platform and power transmission shaft and has slip ring, the part that described rotation platform is positioned between support and balance weight is provided with platform perforation, described power transmission shaft is axially arranged with axle perforation along it, one end of described slip ring connects camera by platform perforation, and the other end connects central processing unit through axle perforation.

Preferably, described driving gear set includes the second gear linked with motor shaft circumference with the first gear of power transmission shaft circumference linkage and engages the idler gear between the first gear and the second gear, described idler gear circumference is connected to jackshaft, and described jackshaft is connected to housing by intermediate bearing.

Preferably, described idler gear includes the first idler gear and the second idler gear all linked with jackshaft circumference, described first idler gear and the engagement of the first gear, described second idler gear and the engagement of the second gear, the modulus of described first idler gear is more than described second idler gear.

This utility model is intended to,

1, provide a kind of line to sweep camera panoramic imaging device, use line-scan digital camera in motor process, the method for 360 degree panoramic imagery/shooting videos, and ensure that the image/video of shooting is indeformable, and resolution height；

2, providing a kind of line to sweep camera panoramic imaging device, it is when rotation platform high-speed rotation, it is ensured that the balance of camera；Its drive mechanism being made up of power transmission shaft and driving gear set, reduces the vibrations suffered by power transmission shaft as far as possible.

Accompanying drawing explanation

Being described more fully these and other aspect of the present utility model now with reference to appended accompanying drawing, it show currently preferred embodiment of the present utility model.Wherein:

Fig. 1 is the structure chart of the present embodiment；

Fig. 2 is the transmission principle figure of the present embodiment；

Fig. 3 is the structure chart of rotation platform；

Fig. 4 is the fundamental diagram of central processing unit；

Fig. 5 is kinestate to the work sheet of line-scan digital camera during resting state.

In figure: 1, housing；2, rotation platform；21, regulating tank；22, installing hole；23, chute is installed；24, platform perforation；31, power transmission shaft；311, drive bearing；32, motor shaft；33, jackshaft；331, intermediate bearing；41, the first gear；42, the second gear；51, the first idler gear；52, the second idler gear；61, support；62, balance weight；7, linear camera.

Detailed description of the invention

Below in conjunction with the accompanying drawings and instantiation, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.

As it is shown in figure 1, a kind of mechanical movement means, including the rotation platform 2 of housing 1 and tabular, it is separately installed with support 61 and balance weight 62 at the two ends of rotation platform 2, support 61 can be fixed the linear camera 7 of different model.Platform perforation 24 is offered at the middle part of rotation platform 2, slip ring is fixing with rotation platform 2 and linear camera 7 is connected with slide block through platform perforation 24, being held by drive bearing 311 in housing 1 and be provided with power transmission shaft 31, power transmission shaft 31 rotates against the other end of platform 2 and fixes and be connected the development board as image processing circuit being positioned at housing 1 through main shaft perforation with slide block.

By technique scheme, when the power transmission shaft 31 being installed on housing 1 rotates, rotation platform 2 is followed power transmission shaft 31 and is carried out high speed rotating, makes to be positioned at the linear camera 7 of rotation platform 2, carries out the periphery scene shot of 360 degree.

During linear camera 7 high-speed rotation, the data wire of linear camera 7 is through being connected with development board by slide block, so that by the data signal transmission of linear camera 7 to development board, this data signal is processed by the image processing circuit integrated by development board, it is thus achieved that image information.

As in figure 2 it is shown, the power transmission shaft 31 of the present embodiment is by being installed on the driving motor of housing 1, it is driven through driving gear set.Driving gear set includes the first gear the 41, first idler gear the 51, second idler gear 52 and the second gear 42；First gear 41 is coaxially fixed with power transmission shaft 31, and the second idler gear 52 and the second gear 42 are coaxially connected at a jackshaft 33, and jackshaft 33 is held by intermediate bearing 331 and is fixedly installed in housing 1, the second gear 42 and motor shaft 32 coaxial linkage.

So, engage at the first gear 41 and the first idler gear 51, after second gear 42 and the engagement of the second idler gear 52, i.e. can realize gear shift by the modulus ratio designing the first idler gear 51 and the second idler gear 52, with the driving motor of limited power, power transmission shaft 31 is driven；Meanwhile, gear drive has preferable stability, makes power transmission shaft 31 during rotating, is difficult to vibrations.

It addition, the present embodiment is in order to improve transmission efficiency further, above-mentioned metalwork all uses aluminium alloy to make.

As it is shown on figure 3, the present embodiment rotation platform 2 be respectively arranged at two ends with regulating tank 21, and one end of its opposite brackets 61 is additionally provided with installation chute 23, and support 61 has support 61 sliding shoe slided in regulating tank 21 in and support 61 installing hole 22 of alignment installation chute 23；Support 61, by the slip in regulating tank 21 of support 61 sliding shoe, regulates its locations of structures rotating against platform 2, and after screw bolt passes support 61 installing hole 22 and installation chute 23, is fixed with rotation platform 2 by support 61.One end of rotation platform 2 relative equilibrium block 62 is provided with multiple rows of installing hole 22 along its length, and balance weight 62 has the balance sliding shoe slided in regulating tank 21 and the balance installing hole 22 coordinating installing hole 22, and balance installing hole 22 has screw thread；Balance weight 62, by balance sliding shoe slip in regulating tank 21, regulates its locations of structures rotating against platform 2, and after screw sequentially passes through installing hole 22 and balance installing hole 22, is fixed with rotation platform 2 by balance weight 62.

By above-mentioned design, the balance weight 62 and the support 61 that are separately fixed at rotation platform 2 two ends can rotate against platform 2 and carry out displacement.When so fixing the linear camera 7 of different model and Different Weight on support 61, by regulation support 61, the balance weight 62 relative position on rotation platform 2, keep the balance of rotation platform 2, prevent rotation platform 2 over-tilting when high-speed rotation, cause the fracture between rotation platform 2 and power transmission shaft 31.

Having above-mentioned, the present embodiment is applicable to set up all types of linear camera, makes linear camera shooting periphery scenery of 360 degree and can keep balance and stable during high-speed rotation, is suitable to practicality, it is simple to the mechanical movement means install, overhauled.

The most as described in Figure 4, the central processing unit of the present embodiment includes linear array CCD camera acquisition module, FPGA cache module, CPU module and mechanical movement means.Linear array CCD camera acquisition module, by camera lens, imageing sensor and the linear array images of camera controller Real-time Collection scene, after being converted by A/D, view data is input in FPGA cache module, then is input in CPU module carry out split process acquisition panoramic picture.

Additionally, the central processing unit of the present embodiment is flush bonding processor, to a plurality of vertical pixel band split collected, the speed of rotation of the white balance of feedback regulation linear array CCD camera, time of exposure, analog gain, color rendition, focusing and mechanical movement means simultaneously, it is ensured that obtain higher-quality panoramic picture.

The present embodiment uses above-mentioned mechanical movement means and line-scan digital camera exemplarily to disclose a kind of method that camera panoramic imagery swept by line, and it has following steps:

1, preferably set up the circumference linkage between mechanical movement means and line-scan digital camera, and installation mechanical movement means divides into resting state and kinestate relative to the kinestate on ground.

Resting state, mechanical movement means circumferentially rotates with line-scan digital camera, and mechanical movement means is relative to ground static；Kinestate, mechanical movement means circumferentially rotates with line-scan digital camera, and mechanical movement means is relative to ground linearly displacement.

2 as it is shown in figure 5, duty described by the present embodiment, is by kinestate to resting state, in the line-scan digital camera application to panoramic imagery.

Aprowl, mechanical movement means rotates according to preset rotation speed f, and line-scan digital camera is by the vertical pixel bar presetting frame frequency picked-up scene.Terminating at kinestate, after mechanical movement means is relative to ground no longer displacement, central processing unit combines formula:

$\mathrm{\Θ}=\mathrm{\π}-\mathrm{\α}-arcsin\frac{rsin\mathrm{\α}}{\sqrt{r^2+{\left(\stackrel{\‾}{O_1{O}_2}\right)}^2+2r\left(\stackrel{\‾}{O_1{O}_2}\right)cos\mathrm{\α}}}$ (Mechanical movement means is relative to the displacement on ground；α, the prime direction that line-scan digital camera circumferentially rotates and mechanical movement means are relative to the angle of the direction of displacement on ground；R, the radius of gyration of line-scan digital camera), calculate the numerical value of compensation cycle Θ.

3, after mechanical movement means is relative to ground static, the rotating speed of central processing unit elevating mechanism telecontrol equipment is n*f (f is initial speed), and control mechanical movement means first rotated for 2 π+Θ weeks, in rear stopping 2 π (n-1)-Θ week, line-scan digital camera absorbs vertical pixel bar all the time.

Preferably, machinery first rotates at least 2 weeks, rear stopping n-2 week, and line-scan digital camera only absorbs vertical pixel bar under mechanical movement means uniform rotation.

4, central processing unit combine resting state and kinestate picked-up vertical pixel band synthesize panoramic picture/video.

Claims (5)

1. camera panoramic imaging device swept by a line, it is characterised in that including: housing；Drive motor, be fixed in housing；Rotation platform, one end has the support of fixed camera, and the other end has balance weight；Power transmission shaft, is fixed with housing by drive bearing, and the part that an axle head and described rotation platform are positioned between support and balance weight is fixed；Driving gear set, is installed on housing and transmission drives the motor shaft of motor and described power transmission shaft；Central processing unit, is installed in housing, and picture signal and the control of place's reason camera output drive electric machine rotation.

Camera panoramic imaging device swept by line the most according to claim 1, it is characterized in that, the two ends of described rotation platform are respectively provided with regulating tank, and described support and balance weight are respectively provided with installing hole, bolt is after installing hole and regulating tank, and locking support or balance weight are in rotation platform.

Camera panoramic imaging device swept by line the most according to claim 1 and 2, it is characterized in that, it is connected between described rotation platform and power transmission shaft and has slip ring, the part that described rotation platform is positioned between support and balance weight is provided with platform perforation, described power transmission shaft is axially arranged with axle perforation along it, one end of described slip ring connects camera by platform perforation, and the other end connects central processing unit through axle perforation.

Camera panoramic imaging device swept by line the most according to claim 3, it is characterized in that, described driving gear set includes the second gear linked with motor shaft circumference with the first gear of power transmission shaft circumference linkage and engages the idler gear between the first gear and the second gear, described idler gear circumference is connected to jackshaft, and described jackshaft is connected to housing by intermediate bearing.

Camera panoramic imaging device swept by line the most according to claim 4, it is characterized in that, described idler gear includes the first idler gear and the second idler gear all linked with jackshaft circumference, described first idler gear and the engagement of the first gear, described second idler gear and the engagement of the second gear, the modulus of described first idler gear is more than described second idler gear.