CN2483913Y

CN2483913Y - Compound eye omnicamera

Info

Publication number: CN2483913Y
Application number: CN 00245946
Authority: CN
Inventors: 王广生; 方穗明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-28
Filing date: 2000-07-28
Publication date: 2002-03-27
Anticipated expiration: 2010-07-28

Abstract

A compound eye omnidirectional image collect device is the permutation and combination of multi-cameras according to fixed law, and camera equipment of a spherical or hemispherical structure similar to the compound eye of the insect is formed. The lens of each camera of the device points to different directions, so the image information collected from different angles will form a complete live field after the processing of microcomputer, and the visual field can reach stereo 180 DEG or stereo 360 DEG. omnibearing. The omnidirectional visual information is sent to the display buffer of one computer or multi-computes, so the user can select the pictures which they interested in through the control method such as a mouse from the display buffer.

Description

The compound eye type omnibearing shooting device

The utility model relates to a kind of camera head, and particularly a kind of compound eye type omnibearing shooting device belongs to telephotography relay and shoot and monitor equipment.

The shoot and monitor equipment that now just is applied to the safety precaution field is illustrated: through applicant's investigation and inspection information, camera part in the security surveillance system at present commonly used as: the visual field of video camera is all narrower in the supervising devices such as the Japanese integrated monitoring device MD-100 of Star, U.S. prestige Solecare integrated monitoring device VC0945S, therefore the collection of omni-directional visual information relies on moving of The Cloud Terrace upper and lower, left and right to finish.General two to four interchanges or the DC servo-motor of adopting is as Mechanical Driven, and a series of mechanical driving part is finished above-mentioned action.Shortcomings such as its ancillary equipment is many, power consumption big, disguise is poor, cost height become increasingly conspicuous.The disadvantage of this class supervisory control system is that mechanical action speed is slow, and the mechanical scanning IMAQ of finishing omni-directional visual information needs hundreds of milliseconds and even several seconds, thereby attends to one thing and lose sight of another in monitoring process, has big blind spot and dead band.

The purpose of this device, to overcome these defectives of above-mentioned video camera exactly, point out a kind of according to bionic principle, the omnidirectional vision camera of the spherical multi-section compound eye structural of similar insect, and the display device that multiway images parallel acquisition, synthetic and image-capable are arranged, omnibearing visual information is sent in the display buffer of one or more microcomputer, to constitute one or more operators, can in the display buffer of microcomputer separately, select own interested image section, and the omnibearing shooting device that on display, shows.

In order to achieve the above object, this device is encapsulated in multiple cameras in sphere or the hemisphere device, the camera lens of each video camera points to different directions, be equivalent to a pigsney in the insect compound eye and gather one tunnel information, to constitute the omnidirectional vision camera group of the spherical multi-section compound eye structural of similar insect.Multiple cameras is worked in coordination and is made visual range can reach three-dimensional 180 degree (hemisphere) or three-dimensional 360 degree (sphere) are comprehensive, and the omnidirectional image information of gathering by video synthesis chip, Video Capture and processing module, I on the pci bus video frequency collection card ²C bus single-chip microcomputer is sent in the microcomputer, finish the image splicing and constitute omnidirectional image information, leave in the display buffer, from the display buffer, choose own interested picture for different operators by mouse, joystick or other control methods and show.

Because the camera lens of each video camera points to different directions, the image information of different cameras is combined into a complete on-the-spot comprehensive live telecast.For preventing information dropout, the edge part is mutual superposition between the associated camera, and multiple cameras information is sent into computer (microcomputer) and carried out picture editting and processing, and the repeating part of elimination superposition makes its information be connected good.At this moment, the visual information at camera acquisition scene is continuous, no dead band.Information after the processing leaves in the display buffer of microcomputer, and under corresponding software was supported, the operator chose own interested picture by mouse, joystick or other control methods and shows from the display buffer.Carry out the numeral focusing, amplify or reduced field of view, and need not pass through the collection that Mechanical Driven and a series of mechanical driving part are finished above-mentioned image information again.

Has very outstanding advantage when therefore, omnibearing shooting device described in the utility model is applied to the shoot and monitor field.At first, this device all adopts electronic circuit to finish the collection of omnidirectional image information, and need not assign to finish through motor driven and a series of mechanical drive department again, thereby obviously be better than traditional mechanical scanning supervising device at aspects such as reliability, rapidity, disguises.Secondly, the imageing sensor of camera head, it is all very cheap no matter the CCD chip still is the CMOS chip price, comprises fixed lens, adopt six video cameras to constitute the hemisphere omnibearing shooting device in this example, its cost still is lower than a zoom lens and adds the camera head that The Cloud Terrace constitutes.Along with the development of microelectric technique, the integrated level of integrated circuit (IC) chip is more and more higher, and processing speed is more and more faster, and price is also more and more lower.And the price of motor and mechanical driving part does not have downward trend.As seen, As time goes on, this device can have more and more significantly price advantage.They are three years old, this device is parallel acquisition multichannel visual information simultaneously, after can synthesizing omnibearing visual pattern for many microcomputers, leave in the display buffer of microcomputer separately (as large-scale commercial building general manager, administrative staff, security personnel separately in the display buffer of microcomputer).Different operating person (as general manager, administrative staff, security personnel) can pass through mouse, joystick or other control methods, the omnidirectional image information of in the display buffer of microcomputer separately, storing, choose own interested part and show, satisfied different operating person's needs.Simultaneously, omnibearing image information is sent into video tape recorder, disc unit or other memory devices stores, search at that time not the image information of choosing in the display buffer in order to the operator, reduced losing of scene image information at that time, this is that present supervising device can't be realized.

Now with specific embodiment the utility model further is illustrated in conjunction with the accompanying drawings, wherein:

Fig. 1 is an installation hemisphere omnibearing shooting device on the wall;

Fig. 2 is this device block diagram, represents No. six video cameras parallel acquisition six tunnel visual informations simultaneously, and the process of a synthetic omnibearing visual pattern;

Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 are the physical circuit of this device;

Fig. 8 is the comprehensive emulation parts of images in studio of picked-up;

To describe specific embodiments in detail with reference to accompanying drawing.

1 is the domed base of installation omnidirectional vision camera on the wall among Fig. 1, and 2 is the video camera part among Fig. 1, adopts 6 video cameras in this example, and the mode with 2 * 3 is arranged in hemispherical dome structure and installs on the wall.The camera lens of each video camera points to different directions, and the image information of different cameras can be combined into a complete on-the-spot comprehensive live telecast.

Omnidirectional vision camera is from the collection of visual pattern information-the send to overall process that receives control as can see from Figure 2.Now be further described below in conjunction with Fig. 2: the video camera chip adopts the OV7910 cmos image chip 3 of OmniVision company.OV7910 is single-chip high-performance, color cmos video camera driver chip, and it supports general video (video) and two kinds of video formats of super video (S-Video).Rgb video signal is provided, and supports VCR televimonitor or other terminal input equipment.The image information that the low-cost colour TV camera that is made of single-chip OV7910 is gathered, the video format conversion through TDA8310AWE conversion of signals chip 4 is converted to the YUV form to vision signal, sends in the microcomputer video capture card based on pci bus.SAB9077 is a video synthesis chip 5 in the card, and it can synthesize piece image with the two-way real time video signals, sends into Bt848/Bt878 chip 6 in the video capture card then.Bt848/Bt878 is single video capture and the processing module that BrookTree company produces.It can directly send into video pixel data the display buffer of microcomputer.The synthetic video input of three-channel parallel is merged into an omnibearing visual pattern with six video camera visual informations under the management of software, send into the display buffer of expanding on the computer motherboard, for storage and demonstration.I ²C bus single-chip microcomputer 83C654 chip 7 is finished the communication of the information that manages with pci bus, the parameter of control OV7910 cmos image chip 3.SAB9077 video synthesis chip 5 programmed to be write, and finishes the information exchange between the chip.

The detailed circuit of compound eye type omnibearing shooting device such as Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, existing just Fig. 3 physical circuit is illustrated: Fig. 3 constitutes a low-cost colour TV camera by single-chip OV7910 3.Pass through I ²C interface is programmed to be provided with and is realized automatic gain control (AGC), automatic exposure control, GAMMA correction and backlight control.TDA8310AWEI is a video format conversion chip 4, and vision signal is converted to yuv format, and generates the corresponding synchronous signal, sends into the video capture card based on pci bus.Fig. 4 is pci bus address, data decoding and driving part, and wherein 74LS688 chip 8 selects as the pci bus plate with DIP switch 9, and GAL20V8 chip 10 is as address decoding, and

74LS373 chip

11,12 is a buffer, I ²C bus single-chip microcomputer 83C654 chip 7 cooperates with 74LS273 latch 13, finishes the parallel communication that carries out with pci bus to I ²The conversion of C bus communication makes that the chip data exchange on host CPU and the integrated circuit board is simple.Fig. 5 is the synthetic PIP chip 5 of SAB9077 video, and it can be synthetic with the two-way real time video signals.With the development of microelectric technique, the appearance of multi-channel video signal synthesis chip will make whole design greatly simplify.2M RAM was used in the random data storage when HM538253BJWEI chip 14 synthesized for vision signal among Fig. 6, and TDA8501 chip 15 is with YUN conversion of signals PAL signal.Fig. 7 is a Bt848/Bt878 chip 6, and the Bt878 chip increases by an audio signal input port.The Bt848/Bt878 chip is one chip Video Capture and the processing module that BrookTree company produces, can directly hang on the pci bus, make full use of the high bandwidth of the 132MB/s of pci bus, video image data with 32 bit bytes under the control mode of DMA passage is transferred on the pci bus, and video pixel data is directly sent into internal memory display buffer on the computer motherboard.The input of the video of three-channel parallel is merged into six tunnel visual informations an omnibearing visual pattern and sends into the display buffer expanded on the mainboard for storage and show under the management of software.

Fig. 8 is the part of comprehensive studio emulating image of our picked-up, this figure is the little figure of four width of cloth in six road visual pattern information, see that for clear image is by the little figure splicing of four width of cloth, this figure is without image processing, the junction surface is high-visible between each figure, and the square frame among the figure partly is the selected display part of operator.As required, the operator can choose own interested picture by mouse, joystick or other control methods and show from the display buffer, and can carry out the numeral focusing, amplify or reduced field of view, and need not pass through the collection that Mechanical Driven and a series of mechanical driving part are finished above-mentioned image information again.

Can see from above-mentioned explanation: scan supervising device because this device adopts omnibearing electronic information gathering treatment technology thereby obviously is better than traditional mechanical at aspects such as reliability, rapidity, disguise and low costs.Supply with multidigit different operating person omni-directional visual information at the same time, and can therefrom choose own interested visual pattern aspect and marked improvement is arranged than traditional mechanical scanning supervising device.

Below in conjunction with the embodiments this device has been done detailed explanation, those skilled in the art are not difficult to make some remodeling according to the principle of this device, but they can not exceed spirit and the scope that the utility model claim is limited.

Claims

1. compound eye type omnibearing shooting device, mainly be grouped into by video camera, sphere or domed base and image processing, sending part, it is characterized in that: camera part is made of multiple cameras (2), the camera lens of each points to different directions, be encapsulated in sphere or the domed base (1), to constitute the omnidirectional vision camera group of spherical multi-section compound eye structural, its omnidirectional image information of gathering is by video synthesis chip (5), Video Capture and processing module (6), I on the pci bus video frequency collection card ²C bus single-chip microcomputer (7) is sent in the microcomputer, finishes the image splicing and constitutes omnidirectional image information, leaves in the display buffer.

2. according to the compound eye type omnibearing shooting device of claim 1, it is characterized in that: multiple cameras (2) is packaged together, form sphere or hemispherical dome structure, each camera acquisition one tunnel information wherein, multiple cameras is worked in coordination and is made visual range can reach stereoscopic and omnibearing.