CN202818442U - All-digital panoramic camera - Google Patents
All-digital panoramic camera Download PDFInfo
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- CN202818442U CN202818442U CN201220238009.2U CN201220238009U CN202818442U CN 202818442 U CN202818442 U CN 202818442U CN 201220238009 U CN201220238009 U CN 201220238009U CN 202818442 U CN202818442 U CN 202818442U
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Abstract
The utility model discloses an all-digital panoramic camera. The camera comprises a camera housing, an only fish-eye lens, an photoelectric sensor, an image processing module, an image coding module, and an output module. The image processing module includes a segmentation unit and a correction unit, wherein the segmentation unit performs segmentation on the regional position of a panoramic picture according to the need, and the correction unit corrects a distorted panoramic picture. Since the fish-eye lens is adopted, the monitoring range is wide and no dead angles exist, and a plurality of cameras can be replaced in a designated range. And the image processing module can segment an image, thereby facilitating viewing of different angels and directions, thus the all-digital panoramic camera is suitable for being used for the rail transportation industry. The all-digital panoramic camera has a wide monitoring range, high reliability, and simple wire arrangement, and is not affected by high-voltage electromagnetic interference.
Description
Technical field
The utility model relates to panoramic camera, particularly for the digital panoramic camera of track traffic.Described digital panoramic camera comprises camera housing, image acquisition circuit plate and image processing circuit board.
Background technology
At present on the commercial market rig camera to use maximum be analog video camera, and be disturbed easily during analog signal transmission, cause image fault and jitter.In addition, traditional analog video camera monitoring range is narrow.Digital camera just starts, and panoramic camera phoenix feathers and unicorn horns especially.And that the used video camera of track traffic industry also needs is high temperature resistant, impact resisting vibrating, highly reliable, wiring simply, are not subjected to the industry characteristics such as high-voltage electromagnetic interference.
" Chinese photography man " magazine the 06th phase in 2005 is introduced fish eye lens, and fish eye lens is a kind of special case of bugeye lens, and its front end first lens is projection forward usually, like the goldfish eye heaved so gain the name.Fish-eye focal length is extremely short and the angle of visual field is maximum, approach or equal even surpass 180 and spend, in the picture of clapping, present the distortion of the circular shape of extreme exaggeration, therefore it belongs to again the special-effect camera lens, modal fish eye lens can be summarized as two classes substantially in the existing market: a class is " circle fisheye lens ", be also referred to as " round-the-clock fish eye lens ", its maximum image field is little according to the camera exposure window, its horizontal view angle equates that with the vertical angle of view captured picture is that circle and visual angle are spent greater than 180." circle fisheye lens " originates in nineteen twenty-three at first, and it is to be finished and patented power by the Shandong design of British scientist R west, and " circle fisheye lens " was mainly used in the scientific domains such as astronomy, meteorological observation originally, therefore described with " round-the-clock " word.The designed fish eye lens angle of visual field in Shandong, west is 180 degree, and the front is one piece of heavy caliber concave lens, and the incidence angle that light is taken in the inside eyeglass by these concavees lens is very little, and this structure is still using now.Usually its visual angle is greater than 180 degree, can reach 220 degree, and for example: the fish-eye visual angle of Nikkor 6mmf/2.8 is 220 degree.Another kind of to be " diagonal fish eye lens " its maximum image field large according to the camera exposure window, and its diagonal angle of view is 180 degree, and it presents the horizontal view angle and the vertical angle of view is unequal and all spend less than 180.Although fish-eye horizontal view angle is large, the scope of covering is wider than common lens, yet gross distortion has occured the picture that fish eye lens photographed, and produces bent corner effect, need to correct so that clear checking bent angle picture.
Application number is that 200810119629.2 Chinese invention patent discloses a kind of image apparatus for correcting, and it comprises that audio collection and processing unit are used for gathering audio signal; The source of sound recognition unit is used for judging the source direction of sound according to the audio signal of audio collection and processing unit collection, and generates corresponding horizontal view angle; IMAQ and processing unit are used for gathering the panoramic picture that absorbs; The image correcting unit is used for the horizontal view angle according to the generation of source of sound recognition unit, selects the window area of panoramic picture on described horizontal view angle of described IMAQ and processing unit collection to correct, and obtains the plane picture of window area; Compression and transmission unit compress and transmit for plane picture and the described audio signal of the described window area that the image correcting unit is obtained.But this invention is that the source direction according to sound obtains image, and the scope that covers does not reach 360 degree.In addition, this invention can not be cut apart arbitrarily selection to image, is not easy to check.
Application number is that 201110280276.6 Chinese invention patent discloses a kind of 360 degree real-time panoramic cameras, it comprises at least four the tunnel, and be the multichannel image unit that coaxial surrounding distributes, under the control of main control chip, video acquisition module gathers the multi-channel video signal from image unit, then respectively each road vision signal being carried out image by the image rectification module corrects, carry out Image Mosaics by the Image Mosaics module at last and export display to by image output module, utilize simultaneously DSP algorithm and built-in HD video coprocessor (HD-VICP), realize the H.264 compression of image, and carry out the transmission of packet by network interface.But this panoramic camera has comprised at least four road fish-eye cameras, so complex structure, cost are high, and the image after the rectification does not have angle sense and sense of direction, is not easy to check, is not suitable for the track traffic industry.
Summary of the invention
The deficiency that exists in order to overcome prior art, the purpose of this utility model provide a kind of monitoring range wide, be convenient to check, reliability is high, wiring is disturbed by high-voltage electromagnetic simply and not digital panoramic camera.
For achieving the above object, the utility model provides digital panoramic camera, it is characterized in that: it comprises camera housing, image acquisition circuit plate and image processing circuit board; Described image acquisition circuit plate comprises unique fish eye lens, photoelectric sensor and an image processing module, and described image processing circuit board comprises image coding module, central controller and output module; Described image processing module comprises cutting unit and correcting unit, and wherein, described cutting unit is cut apart by the regional location of panoramic picture, and described correcting unit is corrected the panoramic picture with bent corner effect.Like this, in use, processing by cutting unit, can make a width of cloth panoramic picture be divided into some width of cloth images according to the needs of angle and direction, by correcting unit the image with bent corner effect is corrected again, reach clear purpose of conveniently checking, be fit to be used in special trade, particularly track traffic industry.
Described cutting unit comprises memory and the arithmetic unit of storing partitioning algorithm.Like this, during use, arithmetic unit is carried out the instruction from central controller, transfers the algorithm in the memory and carries out dividing processing.
Described fish-eye horizontal field of view angle is preferably greater than 180 ° greater than 170 °, more preferably is 185 °, so that digital panoramic camera can cover 360 ° monitoring range.
Comprise infrared lamp and luminance sensor in the described camera housing, infrared lamp is arranged near the fish eye lens, and luminance sensor is connected to control the connection of infrared lamp with infrared lamp.Like this, digital panoramic camera is worked under rayless environment.
Carry out physical connection by the first video data transmitting interface between described image acquisition circuit plate and the described image processing circuit board.Like this, view data, power supply and bus control signal all pass through this interface, make the video camera internal wiring simple.
Carry out physical connection by the second video data transmitting interface between described image processing module and the described photoelectric sensor.
Described the first video data transmitting interface pin number is preferably 20 pins greater than 15 pins.
Described the second video data transmitting interface pin number is preferably 20 pins greater than 15 pins.
In the described camera housing memory device is installed, memory device is connected with image coding module, is used for storing the data that encoded resume module is crossed.Like this, when needed, can consult over the view data of certain period.
Described image coding module is connected with microphone, is provided with analog to digital converter in the described camera housing, and analog to digital converter is connected with microphone, is used for the speech simulation signal that microphone obtains is converted to digital signal and passes to coding module.Like this, when needed, can realize simultaneously record of image and sound.
Described image coding module is connected with audio input interface, is used for obtaining voice data, and passes to described analog to digital converter.Like this, damage in the malfunctioning situation at microphone, obtain sound with audio input interface, realize simultaneously record of video/audio.
Described fish-eye visual angle and direction can be regulated.Like this, adjust as required in use, so that monitoring is more flexible.
Comprise power module in the described camera housing.Like this, when external power cut-off, can use described power module, to guarantee the continuation of monitoring.
Described camera housing is all-metal.Can reduce like this interference of high-voltage electromagnetic.
The digital panoramic camera that the utility model provides adopts fish eye lens can cover the monitoring range of 360 degree, this means that seeing through a panoramic camera can disposablely see that whole monitoring is on-the-spot, and, what obtain is picture complete, that link up, avoided the past problem, the problem includes: the incoherent problem of picture, therefore, simple in structure, maintenance facility and with low cost.And this digital panoramic camera possesses machinery-free parts, the wiring advantage such as simple, and monitor data is avoided the analog signal transmission interference problem with the transmission of IP digital form simultaneously.Video camera adopts the ceiling type design, directly embeds during installation in the car body, and the passenger is imperceptible to have camera head in monitoring.Under normal circumstances, panoramic camera is monitored with the D1 form, and after emergency occured, video camera can be monitored with 720P or 1080P high definition mode.In addition, visual angle and direction can be regulated.By Video processing, it is two sub-pictures of 2 directions that original annular picture is expanded, and also can be shown as the fourth officer image in 4 orientation.Can be widely used in the monitoring of the regionals such as tramcar, subway, motor-car, high ferro.
Description of drawings
Fig. 1 is structural framing figure of the present utility model;
Fig. 2 is structural representation of the present utility model;
Wherein, 1, image acquisition circuit plate; 2, camera housing; 3, the second video data transmitting interface; 4, correcting unit; 5, image processing module; 6, image processing circuit board; 7, microphone; 8, audio input interface; 9, analog to digital converter; 10, image coding module; 11, central controller; 12, memory device; 13, output module; 14, power module; 15, the first video data transmitting interface; 16, memory; 17, arithmetic unit; 18, cutting unit, 19, luminance sensor; 20, infrared lamp; 21, fish eye lens; 22, photoelectric sensor.
Embodiment
As shown in Figure 1, the structure of the digital panoramic camera that provides of the utility model is as follows:
A kind of digital panoramic camera comprises camera housing 2, image acquisition circuit plate 1 and image processing circuit board 6; Image acquisition circuit plate 1 comprises unique a fish eye lens 21, photoelectric sensor 22 and image processing module 5; Image processing circuit board 6 comprises image coding module 10, central controller 11 and output module 13; Output module 13 is connected with power module and is connected with image coding module 10; Image processing module 5 comprises correcting unit 4 and cutting unit 18; Cutting unit also comprises memory 16 and the arithmetic unit 17 of storing partitioning algorithm; Be provided with infrared lamp 20 near fish eye lens 21, luminance sensor 19 is connected with infrared lamp 20; Image coding module 10 is connected with microphone 7 and audio input interface 8, analog to digital converter 9 and image coding module 10, microphone 7 are connected with audio input interface and are connected, and are used for the audio analog signals that microphone 7 and audio input interface 8 obtain is converted to digital signal and passes to coding module 10 compression codings; At camera housing 2 interior mounting storage devices 12, be connected with image coding module 10.
In some special industry, such as the track traffic industry, sometimes need the image of certain angle or direction is carried out careful checking, and the panoramic picture that fish eye lens obtains has produced bent corner effect, cause the picture distortion, be not suitable for checking the detail section of image, therefore need to carry out certain selection to image.Cutting unit 18 in the image processing module 5 is exactly as required the view picture panoramic picture to be cut apart, this cutting unit 18 comprises memory 16 and arithmetic unit 17, stored the partitioning algorithm that has write in the memory, central controller 11 sends split order to cutting unit, and the algorithm that arithmetic unit 17 is transferred in the memory 16 carries out dividing processing.The view picture panoramic picture becomes some width of cloth images after cutting apart, every width of cloth image of this moment is appointed so bent corner effect, do not meet the human eye vision requirement, need in the image processing module 5 correcting unit 4 to process this moment, and correcting unit corrects to meet the human eye vision requirement to these fish eye images.
View data after processing through image processing module 5 is very large, and being not suitable for directly needing through image coding module 10 by H.264 coded format packing in transmission over networks.On image coding module, be connected with microphone 7, audio input interface 8 and analog to digital converter 9, the audio analog signals of microphone 7 and audio input interface 8 typings carries out becoming digital signal and being transferred to coding module 10 processing after the analog-to-digital conversion through analog to digital converter 9.
For make the shooting function under the environment a little less than the light as can working on evening, be provided with infrared lamp 20 at the annex of fish eye lens 21, luminance sensor 19 is connected with infrared lamp 20.When light is stronger such as daytime, infrared lamp 19 is closed, and when light was weak, luminance sensor 19 can be perceived the variation of light and make infrared lamp open 20, and the shooting function works on.
In order to make the video camera internal wiring simple, have between the image processing module of cutting apart, entangle the shape function and the photoelectric sensor sensor and carry out physical connection by the second video data transmitting interface 3, carry out physical connection by the first video data transmitting interface 15 between image acquisition circuit plate and the image processing circuit board.Preferably, as shown in Figure 2, two video data transmitting interfaces are provided with 20 pins, in 20 pins, 11 pins are used for transmitting the YUV422 format video signal, 2 pins are used for controlling image processing module, photoelectric sensor sensor and fish eye lens with the I2C bus form by image coding module 2, and 2 pins are used for transmission current, remaining 5 pin ground connection.
For video camera still can be worked on when the external power cut-off, be provided with power module 14 in camera housing 2, power module 14 is connected with image coding module 10, in case the external power supply outage, power module will start immediately, realize that video camera continues non-stop run.
During the utility model work, at display control terminal, central controller 11 in coding module 10 sends instruction, camera is started working, at first gather light signal by fish eye lens 21, but because fish-eye focal length is short and angular field of view is large, therefore to process the 22 rear images that produce by photoelectric sensor are panoramic pictures to the light signal of its collection, although coverage is wide, but be not easy to the careful image of checking certain angle or orientation, at this moment just need the cutting unit 18 in the image processing module 5 as required the view picture panoramic picture to be cut apart, as be divided into the fourth officer image, facilitate like this situation of checking four direction.Yet, gross distortion still occurs in each width of cloth image after cutting apart, the scenery that shows as except the picture center remains unchanged, other should level or vertical scenery corresponding variation has all occured, compensate, entangle shape by the image of the 4 pairs of distortion of correcting unit in the image processing module 5 this moment again, makes image return to real scene.The image data amount of image processing module 5 outputs is larger, can be not smooth, imperfect during transmission, at this moment just need coding module 10 that the view data of image processing module output is compressed packing, and by output module 13 outputs, the data after the compression can be stored on the interior memory device 12 of camera housing simultaneously.In addition, have audio input interface 8 and microphone 7 on the coding module, the background sound of synchronously typing video camera region, these voice signals are analog signals, need to be converted into digital signal with the analog to digital converter 9 that is installed in the housing, equally, the view data after the conversion also need through after the compression of coding module 10 packing by output module 13 outputs and be stored on the memory device 12.When external power cut-off, power module 14 is started working.When the light of video camera shooting area was dimmed, as at night or under the powering-off state, near the infrared lamps 20 that are arranged on the fish eye lens 21 were started working, thereby make video camera can continue non-stop run.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technical staff comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection range by claims.
Claims (14)
1. digital panoramic camera, it is characterized in that: it comprises camera housing (2), image acquisition circuit plate (1) and image processing circuit board (6);
Described image acquisition circuit plate (1) comprises a unique fish eye lens (21), photoelectric sensor (22) and image processing module (5), and described image processing circuit board (6) comprises image coding module (10), central controller (11) and output module (13);
Described image processing module (5) comprises cutting unit (18) and correcting unit (4), wherein, described cutting unit (18) is cut apart by the regional location of panoramic picture, and described correcting unit (4) is corrected the panoramic picture with bent corner effect.
2. digital panoramic camera according to claim 1, it is characterized in that: described cutting unit comprises memory (16) and the arithmetic unit (17) of storing partitioning algorithm.
3. digital panoramic camera according to claim 1 and 2, it is characterized in that: described fish-eye horizontal field of view angle is preferably greater than 180 ° greater than 170 °, more preferably is 185 °.
4. the described digital panoramic camera of arbitrary claim in 3 according to claim 1, it is characterized in that: comprise infrared lamp (20) and luminance sensor (19) in the described camera housing, infrared lamp (20) is arranged near the fish eye lens, and luminance sensor (19) is connected 20 with infrared lamp) connect to control the connection of infrared lamp.
5. the described digital panoramic camera of arbitrary claim in 4 according to claim 1 is characterized in that: carry out physical connection by the first video data transmitting interface (15) between described image acquisition circuit plate (1) and the described image processing circuit board (6).
6. the described digital panoramic camera of arbitrary claim in 5 according to claim 1 is characterized in that: carry out physical connection by the second video data transmitting interface (3) between described image processing module (5) and the described photoelectric sensor (22).
7. digital panoramic camera according to claim 5, it is characterized in that: the pin number of described the first video data transmitting interface (15) is preferably 20 pins greater than 15 pins.
8. digital panoramic camera according to claim 6, it is characterized in that: the pin number of described the second video data transmitting interface (3) is preferably 20 pins greater than 15 pins.
9. the described digital panoramic camera of arbitrary claim in 8 according to claim 1, it is characterized in that: memory device (12) is installed in the described camera housing, memory device (12) is connected with image coding module (10), is used for storing the data that encoded resume module is crossed.
10. the described digital panoramic camera of arbitrary claim in 9 according to claim 1, it is characterized in that: described image coding module is connected with microphone (7), be provided with analog to digital converter (9) in the described camera housing, analog to digital converter (9) is connected with microphone (7), is used for the speech simulation signal that microphone obtains is converted to digital signal and passes to coding module (10).
11. digital panoramic camera according to claim 10 is characterized in that: described image coding module is connected with audio input interface (8), is used for obtaining voice data, and passes to described analog to digital converter (9).
12. the described digital panoramic camera of arbitrary claim in 11 according to claim 1, it is characterized in that: visual angle and the direction of described fish eye lens (21) can be regulated.
13. the described digital panoramic camera of arbitrary claim in 12 is characterized in that: comprise power module (14) in the described camera housing according to claim 1.
14. arbitrary profit requires described digital panoramic camera in 13 according to claim 1, it is characterized in that: described camera housing is all-metal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220238009.2U CN202818442U (en) | 2012-05-25 | 2012-05-25 | All-digital panoramic camera |
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| CN201220238009.2U CN202818442U (en) | 2012-05-25 | 2012-05-25 | All-digital panoramic camera |
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| CN202818442U true CN202818442U (en) | 2013-03-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516189A (en) * | 2014-12-26 | 2015-04-15 | 广东光阵光电科技有限公司 | 180-degree wide-angle shooting camera module of VTM machine and shooting method of 180-degree wide-angle shooting camera module |
| CN105744137A (en) * | 2016-04-22 | 2016-07-06 | 王俊懿 | System for real-time correction and splicing of image formed by fish-eye lens through using hardware circuit |
| CN105959575A (en) * | 2016-07-08 | 2016-09-21 | 成都易瞳科技有限公司 | Zooming panoramic camera |
| CN106314279A (en) * | 2015-06-24 | 2017-01-11 | 奥迪股份公司 | An arrangement of an observation device on a motor vehicle and a method for operating the observation device |
| CN109658451A (en) * | 2018-12-04 | 2019-04-19 | 深圳市道通智能航空技术有限公司 | A kind of depth perception method, device and depth perception equipment |
| CN110166670A (en) * | 2019-05-15 | 2019-08-23 | 厦门脉视数字技术有限公司 | A kind of panorama IP Camera |
| CN111405150A (en) * | 2019-02-27 | 2020-07-10 | 深圳启萌星科技有限公司 | Interactive system and method based on image segmentation |
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2012
- 2012-05-25 CN CN201220238009.2U patent/CN202818442U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516189A (en) * | 2014-12-26 | 2015-04-15 | 广东光阵光电科技有限公司 | 180-degree wide-angle shooting camera module of VTM machine and shooting method of 180-degree wide-angle shooting camera module |
| CN106314279A (en) * | 2015-06-24 | 2017-01-11 | 奥迪股份公司 | An arrangement of an observation device on a motor vehicle and a method for operating the observation device |
| CN105744137A (en) * | 2016-04-22 | 2016-07-06 | 王俊懿 | System for real-time correction and splicing of image formed by fish-eye lens through using hardware circuit |
| CN105959575A (en) * | 2016-07-08 | 2016-09-21 | 成都易瞳科技有限公司 | Zooming panoramic camera |
| CN109658451A (en) * | 2018-12-04 | 2019-04-19 | 深圳市道通智能航空技术有限公司 | A kind of depth perception method, device and depth perception equipment |
| CN109658451B (en) * | 2018-12-04 | 2021-07-30 | 深圳市道通智能航空技术股份有限公司 | Depth sensing method and device and depth sensing equipment |
| CN111405150A (en) * | 2019-02-27 | 2020-07-10 | 深圳启萌星科技有限公司 | Interactive system and method based on image segmentation |
| CN110166670A (en) * | 2019-05-15 | 2019-08-23 | 厦门脉视数字技术有限公司 | A kind of panorama IP Camera |
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