CN112929534A - Panoramic view monitoring recorder and application thereof - Google Patents
Panoramic view monitoring recorder and application thereof Download PDFInfo
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- CN112929534A CN112929534A CN202110093461.8A CN202110093461A CN112929534A CN 112929534 A CN112929534 A CN 112929534A CN 202110093461 A CN202110093461 A CN 202110093461A CN 112929534 A CN112929534 A CN 112929534A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
- B60R2300/102—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using 360 degree surveillance camera system
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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
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- Automation & Control Theory (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a panoramic monitoring recorder and application thereof, wherein the panoramic monitoring recorder comprises: the panoramic image monitoring system comprises a base, a transparent fixing component, a camera component, a panoramic reflector and an image processing module, wherein the camera component comprises a collecting lens, the collecting lens is used for collecting panoramic images reflected by the panoramic reflector, the image processing module comprises a video processing unit in communication connection with the camera component, and the video processing unit converts the panoramic images collected by the camera component into rectangular panoramic images.
Description
Technical Field
The invention relates to the technical field of monitoring equipment, in particular to a panoramic view monitoring recorder and application thereof.
Background
The panoramic monitoring and recording device is widely applied to various fields as a monitoring device with large range and no blind spot, wherein the monitoring and recording device based on the wide-angle/fisheye camera is widely applied to the security field due to the characteristic of large visual angle and low cost. For example, the invention patent "vehicle-mounted monitoring device" with the publication number "CN 110001524A" includes three wide-angle cameras, and further includes a first controller and a display screen, where the three wide-angle cameras are supported on the top of the vehicle body through a support rod and are uniformly distributed in an angle range of 360 degrees, and the first controller receives signals of the three wide-angle cameras, synthesizes the signals into a complete image signal, and outputs the complete image signal to the display screen. Because the wide-angle cameras are arranged in a mode of uniform distribution within the range of 360 degrees, 360-degree camera monitoring without dead angles can be really realized.
However, the above design of the above design is complex in structure and high in cost, and on the other hand, the images of the 3 cameras need to be spliced to form a complete image, wherein a correction process is performed, the image distortion of the wide-angle camera is large, the brightness uniformity is poor, the spliced image has three barrel-shaped distortions with poor brightness uniformity, and a more complex correction process is performed on the barrel-shaped distortion.
Moreover, similar to the panoramic monitoring and recording device, due to the characteristics of the wide-angle/fisheye camera, the image distortion is large, the brightness uniformity is poor, especially in a large viewing angle area, the image distortion, the deterioration of the resolution and the brightness have poor resolution performance on an object, a certain limitation is imposed on the installation position, and in many applications requiring relatively good image quality and only requiring circular panoramic viewing in the viewing angle range, the panoramic monitoring and recording device cannot meet the requirements, and the requirements of the applications are continuously increased.
Therefore, there is a need to provide a novel panoramic view monitoring recorder and an application thereof to solve the above problems in the prior art.
Disclosure of Invention
The invention aims to provide a panoramic monitoring recorder and application thereof, which can effectively improve the quality of monitored images and reduce the cost.
In order to achieve the above object, the panoramic monitoring recorder of the present invention comprises:
a base;
a transparent fixed component;
the camera assembly is mounted at the bottom end of the base;
the panoramic reflector is arranged at the top end of the base through the transparent fixing component;
the image processing module is in communication connection with the camera assembly;
wherein;
the camera component comprises a collecting lens, the collecting lens is used for collecting panoramic images reflected by the panoramic reflector, the image processing module comprises a video processing unit in communication connection with the camera component, and the video processing unit converts the panoramic images collected by the camera component into rectangular panoramic images.
The invention has the beneficial effects that: the camera assembly comprises the collecting lens, the collecting lens is used for collecting the panoramic view image reflected by the panoramic reflector, and the video processing unit converts the panoramic view image collected by the camera assembly into the rectangular panoramic view image, so that the external annular panoramic view image can be displayed in the form of the rectangular panoramic view image, the viewing is convenient, and the image resolution is effectively improved.
Furthermore, the image processing module further comprises a video display unit, and the video display unit is in communication connection with the video processing unit and is used for displaying the rectangular panoramic image. The beneficial effects are that: the processed rectangular panoramic image is displayed through the video display unit, so that an operator can conveniently check the image.
Furthermore, the image processing module further comprises a video storage unit, the video storage unit is in communication connection with the video processing unit, and the video storage unit is used for storing the rectangular panoramic image. The beneficial effects are that: the processed rectangular panoramic image is stored through the video storage unit, so that subsequent processing is facilitated.
Further, the video storage unit is in communication connection with the video display unit and is used for playing back the stored rectangular panoramic image in the video display unit. The beneficial effects are that: the stored rectangular panoramic image is convenient to play back through the video display unit so as to be convenient to call for viewing.
Further, transparent fixed subassembly includes transparent ring, transparent ring connects the base top, just the panorama speculum setting is in transparent ring top. The beneficial effects are that: the transparent ring is convenient for fix the panoramic mirror on the top of the base, and enables the panoramic image to be imaged on the panoramic mirror without blocking and collected by the camera component.
Furthermore, the focus of the panoramic reflector, the circle center of the transparent ring and the focus of the collecting lens are positioned on the same axis. The beneficial effects are that: the panoramic image collected by the camera assembly through the panoramic reflector has the same visual angle and the same proportion, so that the image quality of the panoramic image collected by the camera assembly is improved.
Furthermore, a reflecting surface for reflecting images is arranged at the bottom of the panoramic reflector, and the reflecting surface is right opposite to the collecting lens.
Further, the reflecting surface includes any one of a conical surface, a circular table surface, a spherical surface and a paraboloid.
Further, a hollow hole is formed in the base, and the camera assembly collects the reflected image of the panoramic reflector through the hollow hole.
Furthermore, the panoramic image collected by the collecting lens is an image of an annular area, and pixel points of the annular area are converted by the video processing unit and then displayed on the rectangular panoramic image.
The invention also provides application of the panoramic monitoring recorder, and the panoramic monitoring recorder is arranged on an automobile. The beneficial effects are that: the automobile parking monitoring system is convenient for carrying out all-around monitoring on the periphery of the automobile and improves the safety of the automobile in the driving and parking processes.
Further, a shark fin antenna is installed on the automobile, and the panoramic monitoring recorder is installed on the shark fin antenna. The beneficial effects are that: the panoramic image acquisition system is convenient to install, can completely acquire panoramic images around the automobile, and improves the monitoring effect on the automobile.
Drawings
Fig. 1 is a schematic structural diagram of a panoramic view monitoring recorder according to an embodiment of the invention;
FIG. 2 is a block diagram of an image processing module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an acquisition lens acquiring an image of an annular region according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a transition between a panoramic view image and a rectangular panoramic view image of an annular region according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of image acquisition of a spherical panoramic mirror in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the panoramic view monitoring recorder installed on a shark fin antenna according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
To solve the problems in the prior art, an embodiment of the present invention provides a panoramic view monitoring recorder, as shown in fig. 1, including:
a base 1;
a transparent fixed component;
the camera component 2 is arranged at the bottom end of the base 1;
the panoramic mirror 3 is arranged at the top end of the base 1 through the transparent fixing component;
the image processing module 4 is in communication connection with the camera assembly 2; wherein:
In this embodiment, when the panoramic monitoring recorder works, an external panoramic image is reflected by the panoramic reflector 3 and enters the base 1, the capture lens 21 of the camera assembly 2 captures the panoramic image reflected by the panoramic reflector 3, and then the captured panoramic image is received and processed by the video processing unit 41, so that the captured panoramic image is converted into a rectangular panoramic image.
In some embodiments, the transparent fixed subassembly includes transparent ring 5, transparent ring 5 is connected 1 top of base, just panorama speculum 3 sets up transparent ring 5 top, and transparent ring 5 fixes panorama speculum 3 on the one hand on the base 1 top, the outside panorama panoramic image of 3 stable collection of panorama speculum of being convenient for, and transparent ring 5 is not only convenient for fix the panorama speculum on the base top, and what transparent ring 5 adopted simultaneously is transparent material for outside light can pass transparent ring 5 and enter into inside base 1, makes the image of looking around unobstructed form images on the panorama speculum and gather by camera subassembly, has guaranteed the reflection effect of panorama speculum 3 to outside image, thereby has improved subsequent image processing quality.
Further, in this embodiment, the transparent fixing component is used to fix the panoramic mirror 3 on the top end of the base 1 and ensure that external light can pass through, so as to improve the reflection effect of the panoramic mirror 3.
In some embodiments, the focus of the panoramic mirror 3, the center of the transparent ring 5, and the focus of the capture lens 21 are located on the same axis, so that the external images pass through the panoramic mirror 3, the transparent ring 5, and the capture lens 21, and the panoramic images captured by the camera assembly 2 through the panoramic mirror 3 have the same view angle and the same proportion, thereby improving the image quality of the panoramic images captured by the camera assembly and improving the quality of subsequent image processing.
In some embodiments, a reflective surface 31 for reflecting an image is disposed at the bottom of the panoramic mirror 3, the reflective surface 31 is directly opposite to the capture lens 21, and the image of the panoramic mirror 3 is accurately reflected to the image capture position of the capture lens 21 by the reflective surface 31, so that the image captured by the capture lens 21 is clearer and more complete.
In some embodiments, the reflecting surface 31 is a curved surface, including any one of a conical surface, a circular table surface, a spherical surface, and a paraboloid.
In some embodiments, the base 1 is provided with a hollow hole 11 inside, the camera assembly 2 collects an image reflected by the panoramic reflector 3 through the hollow hole 11, and the arrangement of the hollow hole 11 enables the collecting lens 21 of the camera assembly 2 to collect an image reflected by the panoramic reflector 3 with a better image collecting effect.
In some embodiments, as shown in fig. 2, the image processing module 4 further includes a video display unit 42, where the video display unit 42 is communicatively connected to the video processing unit 41, and is configured to display the rectangular panoramic image, and when performing panoramic monitoring on an external image, the rectangular panoramic image converted by the video processing unit is displayed through the video display unit 42, so as to facilitate viewing of the rectangular panoramic image.
In still other embodiments, the image processing module 4 further includes a video storage unit 43, the video storage unit 43 is communicatively connected to the video processing unit 41, the video storage unit 43 is configured to store the rectangular panoramic image, and on the other hand, the processed rectangular panoramic image is stored through the video storage unit 43 so as to record related information.
In other embodiments, the video storage unit 43 is in communication connection with the video display unit 42, so as to playback the stored rectangular panoramic image in the video display unit 42, and the video display unit 42 can not only display the rectangular panoramic image in real time, but also call the rectangular panoramic image stored in the video storage unit 43 after the monitoring is completed, so as to implement call processing on the current data, so as to meet different monitoring requirements, and facilitate fast tracing and viewing of the monitored image.
As shown in fig. 3, the focal point of the capturing lens 21 is o, two arrows in fig. 3 are normal directions of the panoramic mirror 3 corresponding to the inner and outer radii of the selected annular region, the selected size of the annular region determines the viewing angle range of the panoramic image under the condition that other parameters are determined, and each parameter is optimized in order to further optimize the captured panoramic image.
In a further embodiment, as shown in fig. 4, the panoramic image captured by the capture lens 21 is an image of an annular region, and pixels of the annular region are converted by the video processing unit 41 and then displayed on the rectangular panoramic image.
In the process of restoring the panoramic image to the rectangular panoramic image, as shown in fig. 3, specifically, the point (u0, v0) is at the center of the annular region, r1, r2 are the inner ring radius and the outer ring radius of the annular region, the point (x0, y0) is the upper left corner pixel coordinate of the rectangular panoramic annular view, the x direction of the rectangular panoramic annular view is n pixels, the y direction is r2-r1 pixels, and the restoration mapping formula between the pixel point of the panoramic image displayed in the annular region and the pixel point of the rectangular panoramic image is:
P(x，y)＝P(u，v)
u＝u0+(r2-y)*Cos(a)
v＝v0+(r2-y)*Sin(a)
a＝360*x/n。
wherein (x, y) is the coordinate of the pixel point in the rectangular panoramic view, and (u, v) is the coordinate of the pixel point corresponding to the annular panoramic view, wherein a is the included angle between the connecting line of the pixel point and the center of the annular area and the connecting line of the focus of the collecting lens 21 and the center of the annular area.
In a preferred embodiment, as shown in fig. 5, the reflective surface 31 of the panoramic mirror 3 is a spherical surface, the size radius of the reflective surface is a, and is selected to be 15mm, the resolution of the camera assembly 2 is 800W pixels, and 3264 × 2448 resolution, the half viewing angle in the 2448 direction of the camera assembly 2 is selected to be 15 °, the design viewing angle of the panoramic view of the panoramic monitoring recorder is 45 °, wherein the horizontal upper viewing angle B is selected to be 15 °, the horizontal lower viewing angle C is selected to be 30 °, the image reflected by the panoramic mirror 3 is completely filled in the image of the collecting lens 21 of the camera assembly 2, and the image center of the panoramic mirror 3 coincides with the image center of the collecting lens 21 of the camera assembly 2.
According to the above parameters, the curvature radius of the reflecting surface 31 of the panoramic mirror 3 is calculated as:
R＝15/Sin(b)＝15/Sin(60)＝17.32mm。
wherein b is an angle between a straight line on which a radius of a rightmost end of the reflecting surface is located and a straight line on which a vertical direction is located, and wherein b is (15+90+15)/2 is 60 °.
And the distance between the camera focus of the collecting lens 21 and the spherical center of the reflecting surface of the panoramic reflector is as follows:
L＝15*(Cot(15°)+Cot(60°))＝64.64mm；
according to the parameters, the diameter D of the ring of the panoramic reflector corresponding to the horizontal lower view angle is calculated to be 15.23mm through a numerical algorithm, and then the diameter of the sensor of the acquisition lens 21 in pixel unit is converted into: 2448 × 15.23/30 ═ 1242; therefore, the annular panoramic area to be selected is an annular area with the center point of the capturing lens 21 as the origin, the outer ring radius of 1224 pixels, the inner ring radius of 621 pixels, and the vertical resolution of the panoramic view and the grid line of 1224-.
The vertical resolution of the rectangular panoramic view is 600 pixels, the outer ring radius of the annular panoramic area is adjusted to 1221 pixels, and the inner ring radius is unchanged.
Since the vertical viewing angle of the panoramic view is 15+30 ═ 45 °, and the horizontal resolution of the 360 ° panoramic view should be 600 × 360/45 ═ 4800 pixels, the mapping formula of the image restoration between the pixel points of the annular panoramic view acquired by the acquisition lens 21 and the pixel points of the rectangular panoramic view is:
P(x，y)＝P(u，v)
u＝2448/2+(1221-y)*Cos(a)
v＝3264/2+(1221-y)*Sin(a)
a＝360*x/4800
wherein (x, y) is the coordinate of the pixel point in the rectangular panoramic view, and (u, v) is the coordinate of the pixel in the annular panoramic view, wherein a is the included angle between the connecting line of the pixel point and the center of the annular area and the connecting line of the focus of the collecting lens 21 and the center of the annular area.
The invention also discloses application of the panoramic monitoring recorder, the panoramic monitoring recorder is arranged on an automobile, the panoramic monitoring recorder is arranged on the automobile to comprehensively monitor the condition of the automobile, the monitoring effect is improved, the image resolution after monitoring is high, the distortion is not easy to occur, and the automobile driving monitoring with higher requirements can be met.
In some embodiments, as shown in fig. 6, a shark fin antenna 6 is installed on the automobile, and the panoramic view monitoring recorder 7 is installed on the shark fin antenna 6, and since the shark fin antenna 6 is installed on the top of the automobile, the panoramic view monitoring recorder 7 is installed on the shark fin antenna 6, so that the installation is easy, and the panoramic view monitoring recorder can collect more complete and clear monitoring images, thereby improving the monitoring effect.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (12)
1. The utility model provides a panorama panoramic week looks control record appearance which characterized in that includes:
a base;
a transparent fixed component;
the camera assembly is mounted at the bottom end of the base;
the panoramic reflector is arranged at the top end of the base through the transparent fixing component;
the image processing module is in communication connection with the camera assembly;
wherein;
the camera component comprises a collecting lens, the collecting lens is used for collecting panoramic images reflected by the panoramic reflector, the image processing module comprises a video processing unit in communication connection with the camera component, and the video processing unit converts the panoramic images collected by the camera component into rectangular panoramic images.
2. The panoramic view monitor recorder according to claim 1, wherein the image processing module further comprises a video display unit, and the video display unit is in communication connection with the video processing unit and is used for displaying the rectangular panoramic view image.
3. The panoramic view monitoring recorder according to claim 2, wherein the image processing module further comprises a video storage unit, the video storage unit is in communication connection with the video processing unit, and the video storage unit is used for storing the rectangular panoramic view image.
4. The panoramic view recorder according to claim 3, wherein the video storage unit is in communication connection with the video display unit and is used for playing back the stored rectangular panoramic view images in the video display unit.
5. The panoramic perimeter monitoring recorder according to claim 1, wherein the transparent fixing component comprises a transparent ring, the transparent ring is connected to the top end of the base, and the panoramic reflector is arranged on the top of the transparent ring.
6. The panoramic perimeter monitoring recorder according to claim 5, wherein the focal point of the panoramic mirror, the center of the transparent ring and the focal point of the collecting lens are on the same axis.
7. The panoramic view monitoring recorder according to claim 1, characterized in that a reflecting surface for reflecting images is arranged at the bottom of the panoramic reflecting mirror, and the reflecting surface is directly opposite to the collecting lens.
8. The panoramic perimetric monitoring recorder according to claim 7, characterized in that said reflecting surface comprises any one of a conical surface, a circular table surface, a spherical surface and a paraboloidal surface.
9. The panoramic view monitoring recorder according to claim 1, wherein a hollowed-out hole is formed in the base, and the camera assembly collects images of the reflection of the panoramic reflector through the hollowed-out hole.
10. The panoramic view monitoring recorder according to claim 1, wherein the panoramic view image collected by the collecting lens is an image of an annular area, and pixel points of the annular area are converted by the video processing unit and then displayed on the rectangular panoramic view image.
11. Use of a panoramic perimeter monitor recorder according to any of claims 1 to 10, wherein said panoramic perimeter monitor recorder is mounted on a vehicle.
12. Use of the panoramic perimeter monitoring recorder according to claim 11, characterized in that the vehicle is mounted with a shark fin antenna, to which the panoramic perimeter monitoring recorder is mounted.
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| CN110062142A (en) * | 2019-04-25 | 2019-07-26 | 长春理工大学 | A kind of high-resolution refractive and reflective panorama video acquisition and processing system |
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