WO2005048586A1 - Camera device for 360-degree panorama shot and operation method thereof - Google Patents

Camera device for 360-degree panorama shot and operation method thereof Download PDF

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Publication number
WO2005048586A1
WO2005048586A1 PCT/KR2004/002911 KR2004002911W WO2005048586A1 WO 2005048586 A1 WO2005048586 A1 WO 2005048586A1 KR 2004002911 W KR2004002911 W KR 2004002911W WO 2005048586 A1 WO2005048586 A1 WO 2005048586A1
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WO
WIPO (PCT)
Prior art keywords
image
camera device
ccd
lenses
images
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Application number
PCT/KR2004/002911
Other languages
French (fr)
Inventor
Bae Hun Kim
Original Assignee
Bae Hun Kim
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Publication date
Application filed by Bae Hun Kim filed Critical Bae Hun Kim
Publication of WO2005048586A1 publication Critical patent/WO2005048586A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/66Remote control of cameras or camera parts, e.g. by remote control devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/698Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture

Definitions

  • the present invention relates to a camera device for a 360-degree panorama shot a nd m ethod t hereof, i n w hich p anorama i mages a re d irectly t ransmitted t o a video monitor to form a scene without the aid of a computer.
  • the present invention relates to a camera device for a 360-degree panorama shot and method thereof, capable of placing four charge coupled device (CCD) sensors as near as possible to reduce a dead zone formed in parallel between image incident beams of neighboring lens to thereby make the dead zone small enough to be neglected when a subject spaced apart by a predetermined distance (about 4 meters) or more is photographed, thereby making it possible for four image seams to be expressed naturally.
  • CCD charge coupled device
  • the present invention relates to a camera device for a 360-degree panorama shot and method thereof, in which four image signals photographed by four lenses and CCD sensors are combined into one image signal using a quad board to display 180-degree images on a monitor in two upper and lower lines instead of displaying 360-degree images on the monitor in a line, thereby reducing a blank of a scene and improving a resolution.
  • the present invention relates to a camera device for a 360-degree panorama shot and method thereof, in which four lenses and CCD sensors are grouped into one set by twos, the lens of each set are installed each other symmetrically and independently, thereby photographing 360-degree orrmi-direction images on a horizontal plane without moving the lenses and photographing 90-degree images on a vertical plane in a tiltable manner.
  • a conventional panorama camera device is composed of a stationary semi- spherical special mirror, and a camera section installed at a preset position under the special mirror and having a lens and a CCD.
  • the panorama camera configured as mentioned above recognizes or photographs an image of a peripheral 360-degree doughnut shape formed on the special mirror by means of the camera section, and outputs the image to an image signal.
  • the image signal is applied to a computer section.
  • the computer section converts the image signal into a panorama image using a digital signal processing (DSP) technique and an image edition software technique.
  • DSP digital signal processing
  • the conventional panorama camera as mentioned above has an advantage capable o f p hotographing t he 360-degree o mni-direction i mages b y m eans o f o ne lens and one CCD sensor at the same time, but it has disadvantages that it is limited to a resolution to such an extent that a subject intended for observation is displayed too small in size and thus a purpose of general surveillance is hard to satisfy, and that distortion or deformation of image is difficult to completely eliminate. Therefore, a complement to the disadvantages of the above-mentioned panorama camera is a panorama camera 310 for arranging four or more lenses and CCD sensors 302 and 304 to directly photograph the 360-degree omni-direction images.
  • an image incident beam of each lens 302 is configured to be parallel to that of the neighboring lens 302.
  • the lenses 302 are connected to cameras 310 on their back portions, respectively.
  • Each photographed image 350 is sent to a computer 330.
  • the images of the first, second, third and fourth cameras 310 are combined on a computer monitor 340 by image processing board 332 and image edition software 334 which are mounted in the computer 330, thereby being capable of being expressed as a panorama image.
  • each camera section 310 is independently fixed and installed, so that, during assembling, transporting or using it, an external minute impact causes the cameras 310 and the lenses 302 to be varied in focus and image incident beam 320.
  • the parallelism of the image incident beam 320 of the neighboring lens 302 is broken up, so that the image incident beams overlaps to make combination of the images 350 difficult. As a result, it is impossible to express the images 350 in a panorama form.
  • the used camera may be, the camera has a size, and thus a parallel dead zone 360 existing between the lens 302 and the neighboring lens 302 is increased in width. For this reason, the conventional camera device has a problem that connection portions between the images 350 are disconnected.
  • each image signal 328 captured at each camera 310 should be sent up to the display computer section 330, each cable 370 should be installed or each transmitter should be installed to every camera 310. Thus, there is a disadvantage in that an undesired expense is required.
  • a screen size of the monitor 340 has a ratio of 4:3, while, since the images captured by the four cameras 310 should be horizontally spread, the length is greater than the width as shown in Fig. 2, so that the monitor 340 is not used as a whole to leave a unused space 380. Hence, there is a disadvantage that the efficiency of the screen is lowered.
  • the present applicant has filed an invention on "Apparatus and Method for Monitoring Panorama Shot (Korean Patent Application No. 2002-0004726)," which will be described below.
  • the lenses and CCD image sensors are configured on the same horizontal plane by the number dividing 360 degrees by an image incident angle, and as the numbers of lenses and CCD image sensors become increased, a photograph is taken by a direct photographing scheme by a plurality of cameras and lenses rather than a conventional indirect photographing scheme photographed by using a camera, thereby enhancing a resolution and eliminating a distortion phenomenon.
  • the apparatus for monitoring the 360-degree panorama shot is to be manufactured which includes a lens barrel 390 formed of a polyhedron for fixing and disposing the lenses and CCD image sensors.
  • the method has a drawback in that a cable is provided to each camera, and thus e ach transmitter should be provided to the every camera. This leads to disadvantages that it is difficult to provide transmission, and that the many cables and transmitters required unnecessarily makes the apparatus complicated. Because signals transmitted from the transmitter are received by a computer, a production cost is increased due to the expensive computer. In the process of displaying panorama images, 360-degree images are spread on a screen in a line, so that efficiency of the screen is lowered.
  • the present invention is to install a total of four lenses and CCD sensors one by one in the east, west, south and north and minimize an interval between the CCD sensors enough to hardly feel a discontinuous phenomenon between images when being spaced farther than a predetermined distance (about 4 meters), as well as to combine image signals generated from the four lenses and CCD sensors into a single image signal and to transmit the single image signal alone.
  • CPU boards are manufactured in a fan shape of 90 degrees and the CCD boards attached with the CCD sensors within the CPU boards are uprightly installed. Thereby, the interval between the CCD sensors can be minimized.
  • the four image signals are combined and transmitted into the single image signal, thereby facilitating the transmission.
  • the present invention is to display a transmitted image signal into in two lines of 180-degree images, i.e. a total of 360-degree images, on a monitor, thereby maximizing a subject displayed on the monitor and the resulting resolution, and to be used by directly connecting to a general video monitor without a separate computer and peripherals (including software).
  • a method for a 360-degree panorama shot comprising: a step of photographing each image transmitted through the four lenses having a horizontal angle of 90 degrees on a screen of a monitor by means of the four charge coupled device (CCD) sensors and central processing unit (CPU) boards; a step of inputting each of the photographed four images into a quad board; a step of integrating and outputting the four images into a single quad image by means of the quad board; a step of transmitting the outputted single image to a monitor by wire or wireless; and a step of spreading images covering a total of 360 degrees by 180 degrees in two upper and lower lines on a screen of a general video monitor.
  • CCD charge coupled device
  • CPU central processing unit
  • Fig. 1 is a plan block diagram showing a state where a conventional panorama camera is installed
  • Fig. 2 is a block diagram showing a conventional method for a panorama shot
  • Fig. 3 is a plan block diagram showing a state where a panorama camera of the present invention is installed
  • Fig. 4 is a block diagram showing a method for a panorama shot in accordance with the present invention
  • Fig. 5 is a whole exploded perspective view according to one embodiment of the present invention
  • Fig. 6 is a schematic perspective view showing an assembled state in the present invention
  • FIG. 7 is a cross-sectional view showing an assembled state in the present invention
  • Fig. 8 is a partial magnified plan view of a camera section in the present invention
  • Fig. 9 is a schematic perspective view showing an assembled state of a camera board consisting of CCD boards and CPU boards in the present invention
  • Fig. 10 is a bottom perspective view showing a state where CPU boards are disassembled from a CPU board shield plate in the present invention
  • Fig. 11 is a side cross-sectional view, taken along line A- A of Fig. 10, showing a state where CPU boards are assembled to a CPU board shield plate in the present invention
  • Fig. 12 is a partial magnified perspective view of a mount cover in the present invention
  • Fig. 14 is a magnified plan cross-sectional view, taken along line B-B of
  • FIG. 13 showing a state where a CCD board is fastened in the present invention
  • Fig. 15 is an exploded perspective view of a camera device in accordance with another embodiment of the present invention
  • Fig. 16 is a perspective view of a camera device for a 360-degree panorama shot according to the present invention
  • Fig. 17 shows an operation of a camera device for a 360-degree panorama shot according to the present invention
  • Fig. 1 8 i s a p erspective v iew o f a camera d evice i n accordance w ith yet another embodiment of the present invention
  • Fig. 19 shows an operation of a camera device for a 360-degree panorama shot according to the present invention.
  • a camera main body 1 is composed of a lower case 2 and a transparent upper dome 3 which are separated from each other.
  • a lower inner side of the transparent upper dome 3 and an upper end of the lower case 2 are formed with threads 4 and 4' respectively, thereby being screwed to each other.
  • a camera device 5 is installed in the lower case 3 such that mount covers 7 to which lenses 6 are mounted respectively are proj ected upward.
  • CPU (central processing unit) boards 9 that are radially formed in a shape of a fan having a central angle of 90 degrees are each fixedly installed under a CPU board shield plate 8 by the aid of supports 10.
  • CPU board vertical shield plates 22 are formed by punching four parts of the CPU board shield plate 8 from upward to downward in such a manner that the punched four parts of the CPU board shield plate 8 are folded downward.
  • the four CPU boards 9 of the 90-degree fan shape are circularly combined and coupled between the CPU board vertical shield plates 22.
  • Each of the four mount covers 7 are radially fastened to an upper center of the CPU board shield plate 8, wherein each mount cover 7 is fastened, in an inner side thereof, with CCD (charge coupled device) board 12 having a CCD sensor 11 and is coupled to a connector 14 perpendicular to each CPU board 9, and between the mount covers 7 is fastened a CCD oscillation shield plate 15 of a crisscross shape.
  • CCD charge coupled device
  • a quad board oscillation shield plate 21 is installed to a lower end of the CPU board shield plate 8 through several supports at a constant interval.
  • a fixing base plate 20 to which a quad board 17, a power board 18 and a fan 19 are installed is provided in multiple steps, wherein the respective components are adapted to maintain a constant interval through several supports.
  • An operation of the present invention configured as mentioned above will be described below.
  • Each lens 6 is fastened and fixed to an outer side of each mount cover 7.
  • the CCD board 12 having the CCD sensor 11 is fastened and fixed to an inner side of each mount cover 7. In this case, the lens 6 and the CCD sensor 11 are assembled such that their centers are exactly matched to each other.
  • the CPU boards 9 taking the fan shape in four directions by 90 degrees are each fixed to a lower end of the CPU board shield plate 8 at a constant interval using the supports, wherein the connectors attached to an end of a CPU board 13 are adapted to face upward.
  • the four mount covers 7 having the CCD boards 12 are uprightly fixed in all directions of a central upper side of the CPU board shield plate 8. Then, the CCD board 12 is fastened and fixed to the connector provided to the CPU board 9.
  • the CCD oscillation shield plate 15 is fastened and fixed in a crisscross shape. Thereby, each CCD board 12 is possible to operate without any interference.
  • the CPU board shield plate 8 and the CPU board vertical shield plates 22 are used to mechanically shield an interference phenomenon with respect to the CPU board and an oscillation phenomenon with respect to the CCD board.
  • the quad board oscillation shield plate 21 also, serves to block the interference phenomenon between the quad board 17 and the CPU board 9.
  • the fixing base plate 20 to which the fan 19 is installed causes external air to be introduced to flow internal air of the main body 1 by means of operation of the fan 19. Thereby, the external air passes through heated components and absorbs the heat to give forth it outside. Owing to this function, it is possible to serve to maintain each component at a stable temperature and simultaneously to prevent foreign materials from being introduced from the outside.
  • the camera device configured in this manner is inserted from a bottom side of the main body, and fixed to the main body by fastening it with fixing bolts. It will do if the main body 1 configured in this manner is installed.
  • an image inputted into each CCD sensor 11 by the four lenses 6 is recognized through the CCD board
  • the four image signals of East, West, South and North directions are formed into a single image signal by the quad board 17.
  • the single image signal is transmitted by a wired or wireless transmitter, and thereby two 180-degree images are displayed on a screen of a monitor of a management center in two, upper and lower, lines. In other words, 360-degree images are displayed on a screen.
  • the camera device is separated from the main body. Then, it is sufficient to have only to substitute the broken camera. Accordingly, it is possible to provide easy repair and to save maintenance and repair costs up to the minimum extent.
  • a camera device 100 of the present invention is composed of an image input unit 110 for photographing and inputting an image, and an image processing unit (not shown) for recognizing the inputted image to process it into a signal.
  • the image input unit 110 is protected by an upper case 112 of a transparent dome shape.
  • the image processing unit is protected by a lower case 152 of a cylindrical shape enclosed by an upper plate 150.
  • the upper case 112 is screwed to the lower case 152.
  • the image input unit 110 takes a right triangular prism whose bottom and top surfaces 114a and 116a are coincident with each other, wherein two right lateral surfaces 118a and 120a connecting two pairs of equal sides face outside the camera 100 and one base lateral surface 222a c onnecting a pair of bases faces inside the camera 100.
  • the image input unit 110 is composed of a mount cover 128a of a prismatic shape having holes 124a and 126a formed on the two right lateral surfaces
  • a first bracket 160 are uprightly provided on a central upper portion of the top plate 150.
  • Second brackets 140a and 140b are provided perpendicular to the base lateral surfaces 122a and 122b of the mount covers 128a and 128b, respectively. Thereby, the second brackets 140a and 140b are pivotably hinged to the first bracket 160.
  • the pair of mount covers 128a and 128b are installed such that the base lateral surfaces 122a and 122b are opposite to each other.
  • the first bracket 160 and mount covers 128a and 128b of the top plate 150 are pivotably coupled by a pair of hinge shafts 144a and 144b.
  • Each of the mount covers 128a and 128b has a pivoting angle ⁇ set freely without any interference. Meanwhile, when the pivoting angle ⁇ is set, the mount covers 128a and 128b are fixed by the fixing bolts 146a and 146b.
  • the tilting angle ⁇ is set to rotate up to at least 65 degrees, and thereby the bottom is mainly photographed.
  • the tilting angle ⁇ is designed to be manually adjusted because it is sufficient to be set on installing the camera for the first time.
  • a solenoid mechanism or a tilting remote controlling means can be installed so as to control the tilting angle at a remote distance.
  • the image processing unit (not shown) is composed of four CPU boards (not shown) for processing images transmitted from the lenses 130a and 132a, and a quad board (not shown) for integrating and outputting images divided by the four CPU boards.
  • the image processing unit is composed of four CPU boards (not shown) for processing images transmitted from the lenses 130a and 132a, and a quad board (not shown) for integrating and outputting images divided by the four CPU boards.
  • the camera device is installed to a motor vehicle such that a driver makes use of looking at the front and rear of the motor vehicle without any dead zone, or the camera device is used in a wildfire surveillance system, an anti-terror combat robot, a remote controlling vehicle, a security vehicle and so forth.
  • a lower case 210 of an image processing unit (not shown) of a camera device is provided with a top plate, which is formed with a first bracket 230 at the center thereof, such that an image input unit 220.
  • a mount cover 250 is installed on the top plate 240. Both a top surface (not shown) and a bottom surface 254 of the mount cover 240 take a right isosceles triangle.
  • Two right lateral surfaces 256 connecting two pairs of equal sides are installed with lenses 258 respectively, and one base lateral surface 260 connecting a pair of bases is installed with a second bracket 262.
  • the second bracket 262 of the mount cover 250 is coupled to the first bracket 230 of the lower case 210 about a hinge shaft 264, and is tilted downward with respect to a plane.
  • an image incident angle of two lenses 258 reaches 180 degrees. Therefore, it is possible to photograph 180-degree omni-direction panorama images on a horizontal plane. Further, it is possible to photograph an entire indoor space by tilting up to maximum 90 degrees, preferably 65 degrees on the horizontal plane. Further, as shown in Fig.
  • the two lenses 258 are installed to be opposite to each other, so that it is possible to photograph subjects in a three-dimensional manner.
  • the image input units of the camera device are installed on two w all s ides, the image p rocessing unit i s installed at the c enter o f the c eiling.
  • the image input unit and the image processing unit are connected with each other through a cable, so that it is possible to save costs.
  • the present invention is based on the technical spirit that the lenses and image sensors, which conespond to the number got by dividing 360 degrees by the image incident angle, are installed on the same horizontal plane to photograph the 360-degree images in the panorama format, and that the lenses and image sensors photograph the 360-degree images on the horizontal plane without any mechanical driving but does not adjust the image incident angle on the vertical plane, in order to solve this problem, the hinge shaft is pivotably installed to the mount cover mounted with the lens, and thereby the lens is configured to be tilted by mechanical driving in order to photograph the image on the vertical plane. It is apparent to those skilled in the art that the present invention is intended to cover various modifications and variations within the scope of the fundamental technical spirit of the present invention.
  • the lenses and CCD sensors are installed one by one in every direction of the e ast, t he w est, t he so uth a nd t he n orth, s o t hat t he i nterval b etween t he C CD sensors is minimized.
  • the interval is father than a desired level, the exceeded interval is removed.
  • the four image signals of the 90 degrees generated through the four lenses and CCD sensors are combined into the single image signal, and then the combined image signal is transmitted.
  • the single image signal is displayed on the monitor at an angle of 360 ' degrees in such a manner that the 180-degree images arranged in two, upper and lower, lines. Accordingly, it is simple in structure and is easy in production.
  • the CPU board is configured in the fan shape of 90 degrees, so that the four CPU boards can be fixed to one plate, and thus the four CCD sensors can be fixed at a minimum interval. Thereby, it is possible to produce the camera device for the 360-degree panorama shot capable of photographing the east, the west, the south and the north in a minimum size.
  • the invention is a useful invention in that, because each camera is configured t o facilitate assembly or d isassembly, i t i s e asy to r epair i t w hen i t i s broken, and that, because it is sufficient to substitute only the broken camera, repair costs can be reduced to the maximum extent.
  • the camera is installed to a motor vehicle, the front and rear of the motor vehicle are allowed to be recognized using a computer or monitor mounted on the motor vehicle without a dead zone.
  • the camera is installed at a height where a sight line of a driver is located in the motor vehicle, and an image is transmitted to a remote location by wireless. Thereby, the camera can be used to drive the motor vehicle.
  • the camera is installed to an armored vehicle, a riot vehicle, a security vehicle or so forth to provide omni-direction surveillance and record.
  • the camera is inserted in a storage tank, a drainpipe or so forth to monitor its interior.
  • the camera maintains a visual range on a horizontal plane in all directions of 360 degrees without any mechanical driver and adjusts another visual range on a vertical plane in an upward and downward direction up to maximum 90 degrees, so that a subject can be observed with a single glance. Further, no dead zone takes place on the lower portion of the camera device, efficiency of indoor surveillance action is maximized to meet with a demand of a user.

Abstract

Disclosed is a camera device for 360-degree panorama shot and operation method thereof, wherein the camera transmits panorama images directly to a video monitor without the aid of a computer. In particular, by manufacturing a CPU board in a fan shape with the central angle of 90 degrees and erecting a CCD board with CCD sensors on the corner at a space equal to the width of the CCD sensor, the space between the CCD sensors is minimized. Also, four images signals are integrated to a quad image signal through a quad board, to facilitate the transmission process. A mount cover where 4 CDD boards are installed is uprightly fixed, so four CCD sensors are fixed keeping a minimum space therebetween. Thus, the width of a dead zone existing between image incident beams of neighboring lenses is minimized. Also, shot range can be optionally selected on horizontal, vertical line, i.e., 360-degree image shot on the horizontal line and maximum 90-degree tilting on the vertical line, by combining 2 lenses into one, and installing the lenses symmetrically, while each lens operates independently. By arraying 180-degree panorama images in two lines and displaying 360-degree omni-direction on a monitor at 4:3, the full screen can be used and thus, resolution is maximized.

Description

CAMERA DEVICE FOR 360-DEGREE PANORAMA SHOT AND OPERATION METHOD THEREOF
Technical Field The present invention relates to a camera device for a 360-degree panorama shot a nd m ethod t hereof, i n w hich p anorama i mages a re d irectly t ransmitted t o a video monitor to form a scene without the aid of a computer. The present invention relates to a camera device for a 360-degree panorama shot and method thereof, capable of placing four charge coupled device (CCD) sensors as near as possible to reduce a dead zone formed in parallel between image incident beams of neighboring lens to thereby make the dead zone small enough to be neglected when a subject spaced apart by a predetermined distance (about 4 meters) or more is photographed, thereby making it possible for four image seams to be expressed naturally. The present invention relates to a camera device for a 360-degree panorama shot and method thereof, in which four image signals photographed by four lenses and CCD sensors are combined into one image signal using a quad board to display 180-degree images on a monitor in two upper and lower lines instead of displaying 360-degree images on the monitor in a line, thereby reducing a blank of a scene and improving a resolution. The present invention relates to a camera device for a 360-degree panorama shot and method thereof, in which four lenses and CCD sensors are grouped into one set by twos, the lens of each set are installed each other symmetrically and independently, thereby photographing 360-degree orrmi-direction images on a horizontal plane without moving the lenses and photographing 90-degree images on a vertical plane in a tiltable manner.
Background Art A conventional panorama camera device is composed of a stationary semi- spherical special mirror, and a camera section installed at a preset position under the special mirror and having a lens and a CCD. The panorama camera configured as mentioned above recognizes or photographs an image of a peripheral 360-degree doughnut shape formed on the special mirror by means of the camera section, and outputs the image to an image signal. The image signal is applied to a computer section. The computer section converts the image signal into a panorama image using a digital signal processing (DSP) technique and an image edition software technique. The panorama image is displayed on a monitor section. The conventional panorama camera as mentioned above has an advantage capable o f p hotographing t he 360-degree o mni-direction i mages b y m eans o f o ne lens and one CCD sensor at the same time, but it has disadvantages that it is limited to a resolution to such an extent that a subject intended for observation is displayed too small in size and thus a purpose of general surveillance is hard to satisfy, and that distortion or deformation of image is difficult to completely eliminate. Therefore, a complement to the disadvantages of the above-mentioned panorama camera is a panorama camera 310 for arranging four or more lenses and CCD sensors 302 and 304 to directly photograph the 360-degree omni-direction images. Here, an image incident beam of each lens 302 is configured to be parallel to that of the neighboring lens 302. The lenses 302 are connected to cameras 310 on their back portions, respectively. Each photographed image 350 is sent to a computer 330. For the sent images 350 as mentioned above, the images of the first, second, third and fourth cameras 310 are combined on a computer monitor 340 by image processing board 332 and image edition software 334 which are mounted in the computer 330, thereby being capable of being expressed as a panorama image. However, in the camera device configured in the above-mentioned manner, each camera section 310 is independently fixed and installed, so that, during assembling, transporting or using it, an external minute impact causes the cameras 310 and the lenses 302 to be varied in focus and image incident beam 320. The parallelism of the image incident beam 320 of the neighboring lens 302 is broken up, so that the image incident beams overlaps to make combination of the images 350 difficult. As a result, it is impossible to express the images 350 in a panorama form. However small the used camera may be, the camera has a size, and thus a parallel dead zone 360 existing between the lens 302 and the neighboring lens 302 is increased in width. For this reason, the conventional camera device has a problem that connection portions between the images 350 are disconnected. Further, since each image signal 328 captured at each camera 310 should be sent up to the display computer section 330, each cable 370 should be installed or each transmitter should be installed to every camera 310. Thus, there is a disadvantage in that an undesired expense is required. In order to implement the panorama image on the monitor 340 using the image signals 328 sent from the transmitter as, the computer 330, the image processing board 332 and the image edition software 334 should be used. For this reason, there is a disadvantage that the implementation of the panorama image costs a great deal. When the panorama image implemented in this manner is viewed through the monitor after being horizontally spread, the images captured by the four cameras should be horizontally spread. For this reason, a width of the panorama image is inevitably narlineed, and thus the subject becomes small, and the resolution is deteriorated. Consequently, i t i s i mpossible t o recognize t he s ubj ect i n a c orrect and speedy manner. And, when the image signal 328 is viewed through the monitor 340, a screen size of the monitor 340 has a ratio of 4:3, while, since the images captured by the four cameras 310 should be horizontally spread, the length is greater than the width as shown in Fig. 2, so that the monitor 340 is not used as a whole to leave a unused space 380. Hence, there is a disadvantage that the efficiency of the screen is lowered. In order to solve this problem, the present applicant has filed an invention on "Apparatus and Method for Monitoring Panorama Shot (Korean Patent Application No. 2002-0004726)," which will be described below. hi an apparatus for monitoring a 360-degree panorama shot in which image incident angles formed by several lenses are divided according to a predetermined angle, the lenses and CCD image sensors are configured on the same horizontal plane by the number dividing 360 degrees by an image incident angle, and as the numbers of lenses and CCD image sensors become increased, a photograph is taken by a direct photographing scheme by a plurality of cameras and lenses rather than a conventional indirect photographing scheme photographed by using a camera, thereby enhancing a resolution and eliminating a distortion phenomenon. In order to prevent a panorama image from failing to be implemented by variation of the image incident angles formed according to minute movement of the lens, the apparatus for monitoring the 360-degree panorama shot is to be manufactured which includes a lens barrel 390 formed of a polyhedron for fixing and disposing the lenses and CCD image sensors. However, the method has a drawback in that a cable is provided to each camera, and thus e ach transmitter should be provided to the every camera. This leads to disadvantages that it is difficult to provide transmission, and that the many cables and transmitters required unnecessarily makes the apparatus complicated. Because signals transmitted from the transmitter are received by a computer, a production cost is increased due to the expensive computer. In the process of displaying panorama images, 360-degree images are spread on a screen in a line, so that efficiency of the screen is lowered.
Disclosure of the Invention Therefore, the present invention has been made in view of the above- mentioned problems, and is directed to improvement of the previous invention of
Korean Patent Application No. 2002-0004726 (titled Apparatus and Method for Monitoring Panorama Shot). The present invention is to install a total of four lenses and CCD sensors one by one in the east, west, south and north and minimize an interval between the CCD sensors enough to hardly feel a discontinuous phenomenon between images when being spaced farther than a predetermined distance (about 4 meters), as well as to combine image signals generated from the four lenses and CCD sensors into a single image signal and to transmit the single image signal alone. Specifically, CPU boards are manufactured in a fan shape of 90 degrees and the CCD boards attached with the CCD sensors within the CPU boards are uprightly installed. Thereby, the interval between the CCD sensors can be minimized. The four image signals are combined and transmitted into the single image signal, thereby facilitating the transmission. The present invention is to display a transmitted image signal into in two lines of 180-degree images, i.e. a total of 360-degree images, on a monitor, thereby maximizing a subject displayed on the monitor and the resulting resolution, and to be used by directly connecting to a general video monitor without a separate computer and peripherals (including software). According to an aspect of the present invention, there is provided a method for a 360-degree panorama shot, comprising: a step of photographing each image transmitted through the four lenses having a horizontal angle of 90 degrees on a screen of a monitor by means of the four charge coupled device (CCD) sensors and central processing unit (CPU) boards; a step of inputting each of the photographed four images into a quad board; a step of integrating and outputting the four images into a single quad image by means of the quad board; a step of transmitting the outputted single image to a monitor by wire or wireless; and a step of spreading images covering a total of 360 degrees by 180 degrees in two upper and lower lines on a screen of a general video monitor.
Brief Description of the Drawings The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which: Fig. 1 is a plan block diagram showing a state where a conventional panorama camera is installed; Fig. 2 is a block diagram showing a conventional method for a panorama shot; Fig. 3 is a plan block diagram showing a state where a panorama camera of the present invention is installed; Fig. 4 is a block diagram showing a method for a panorama shot in accordance with the present invention; Fig. 5 is a whole exploded perspective view according to one embodiment of the present invention; Fig. 6 is a schematic perspective view showing an assembled state in the present invention; Fig. 7 is a cross-sectional view showing an assembled state in the present invention; Fig. 8 is a partial magnified plan view of a camera section in the present invention; Fig. 9 is a schematic perspective view showing an assembled state of a camera board consisting of CCD boards and CPU boards in the present invention; Fig. 10 is a bottom perspective view showing a state where CPU boards are disassembled from a CPU board shield plate in the present invention; Fig. 11 is a side cross-sectional view, taken along line A- A of Fig. 10, showing a state where CPU boards are assembled to a CPU board shield plate in the present invention; Fig. 12 is a partial magnified perspective view of a mount cover in the present invention; Fig. 1 3 i s a sc hematic s ide c ross-sectional v iew o f a m ount cover i n t he present invention; Fig. 14 is a magnified plan cross-sectional view, taken along line B-B of
Fig. 13, showing a state where a CCD board is fastened in the present invention; Fig. 15 is an exploded perspective view of a camera device in accordance with another embodiment of the present invention; Fig. 16 is a perspective view of a camera device for a 360-degree panorama shot according to the present invention; Fig. 17 shows an operation of a camera device for a 360-degree panorama shot according to the present invention; Fig. 1 8 i s a p erspective v iew o f a camera d evice i n accordance w ith yet another embodiment of the present invention; and Fig. 19 shows an operation of a camera device for a 360-degree panorama shot according to the present invention. Best Mode for Careving Out the Invention Reference will now be made in detail to the exemplary embodiments of the present invention. According to one embodiment of the present invention, a camera main body 1 is composed of a lower case 2 and a transparent upper dome 3 which are separated from each other. A lower inner side of the transparent upper dome 3 and an upper end of the lower case 2 are formed with threads 4 and 4' respectively, thereby being screwed to each other. A camera device 5 is installed in the lower case 3 such that mount covers 7 to which lenses 6 are mounted respectively are proj ected upward. For the camera device 5, CPU (central processing unit) boards 9 that are radially formed in a shape of a fan having a central angle of 90 degrees are each fixedly installed under a CPU board shield plate 8 by the aid of supports 10. CPU board vertical shield plates 22 are formed by punching four parts of the CPU board shield plate 8 from upward to downward in such a manner that the punched four parts of the CPU board shield plate 8 are folded downward. The four CPU boards 9 of the 90-degree fan shape are circularly combined and coupled between the CPU board vertical shield plates 22. Each of the four mount covers 7 are radially fastened to an upper center of the CPU board shield plate 8, wherein each mount cover 7 is fastened, in an inner side thereof, with CCD (charge coupled device) board 12 having a CCD sensor 11 and is coupled to a connector 14 perpendicular to each CPU board 9, and between the mount covers 7 is fastened a CCD oscillation shield plate 15 of a crisscross shape. A quad board oscillation shield plate 21 is installed to a lower end of the CPU board shield plate 8 through several supports at a constant interval. Under the quad board oscillation shield plate 21, a fixing base plate 20 to which a quad board 17, a power board 18 and a fan 19 are installed is provided in multiple steps, wherein the respective components are adapted to maintain a constant interval through several supports. An operation of the present invention configured as mentioned above will be described below. Each lens 6 is fastened and fixed to an outer side of each mount cover 7. The CCD board 12 having the CCD sensor 11 is fastened and fixed to an inner side of each mount cover 7. In this case, the lens 6 and the CCD sensor 11 are assembled such that their centers are exactly matched to each other. Meanwhile, the CPU boards 9 taking the fan shape in four directions by 90 degrees are each fixed to a lower end of the CPU board shield plate 8 at a constant interval using the supports, wherein the connectors attached to an end of a CPU board 13 are adapted to face upward. The four mount covers 7 having the CCD boards 12 are uprightly fixed in all directions of a central upper side of the CPU board shield plate 8. Then, the CCD board 12 is fastened and fixed to the connector provided to the CPU board 9. In the center portion where each mount cover 7 installed on the upper side of the CPU board shield plate 8 is assembled, the CCD oscillation shield plate 15 is fastened and fixed in a crisscross shape. Thereby, each CCD board 12 is possible to operate without any interference. The CPU board shield plate 8 and the CPU board vertical shield plates 22 are used to mechanically shield an interference phenomenon with respect to the CPU board and an oscillation phenomenon with respect to the CCD board. The quad board oscillation shield plate 21, also, serves to block the interference phenomenon between the quad board 17 and the CPU board 9. The fixing base plate 20 to which the fan 19 is installed causes external air to be introduced to flow internal air of the main body 1 by means of operation of the fan 19. Thereby, the external air passes through heated components and absorbs the heat to give forth it outside. Owing to this function, it is possible to serve to maintain each component at a stable temperature and simultaneously to prevent foreign materials from being introduced from the outside. The camera device configured in this manner is inserted from a bottom side of the main body, and fixed to the main body by fastening it with fixing bolts. It will do if the main body 1 configured in this manner is installed. In the present invention configured as mentioned above, an image inputted into each CCD sensor 11 by the four lenses 6 is recognized through the CCD board
12 and the CPU board 9. The four image signals of East, West, South and North directions are formed into a single image signal by the quad board 17. As a result, the single image signal is transmitted by a wired or wireless transmitter, and thereby two 180-degree images are displayed on a screen of a monitor of a management center in two, upper and lower, lines. In other words, 360-degree images are displayed on a screen. In the meantime, when any one of the CCD boards 12 or the CPU boards 9 is broken, the camera device is separated from the main body. Then, it is sufficient to have only to substitute the broken camera. Accordingly, it is possible to provide easy repair and to save maintenance and repair costs up to the minimum extent. When the camera main body 1 is installed to an indoor ceiling and arranges indoor images, the ceiling is unnecessarily photographed to fail to provide efficient surveillance operation. In other words, since an image incident angle of each lens 6 is set to 90 degrees, an image incident beam facing upward mainly photographs the ceiling, and an image incident beam facing downward mainly photographs a part of a bottom and a wall. For this reason, a dead zone which the image incident beam does not cover is formed on a lower portion of the camera main body 1. To overcome this problem, the following configuration is devised in the present embodiment, as shown in Figs. 15 and 16. A camera device 100 of the present invention is composed of an image input unit 110 for photographing and inputting an image, and an image processing unit (not shown) for recognizing the inputted image to process it into a signal. The image input unit 110 is protected by an upper case 112 of a transparent dome shape. The image processing unit is protected by a lower case 152 of a cylindrical shape enclosed by an upper plate 150. The upper case 112 is screwed to the lower case 152. The image input unit 110 takes a right triangular prism whose bottom and top surfaces 114a and 116a are coincident with each other, wherein two right lateral surfaces 118a and 120a connecting two pairs of equal sides face outside the camera 100 and one base lateral surface 222a c onnecting a pair of bases faces inside the camera 100. The image input unit 110 is composed of a mount cover 128a of a prismatic shape having holes 124a and 126a formed on the two right lateral surfaces
118a and 120a respectively, lenses 130a and 132a fitted into the holes 124a and 126a, CCD image sensors (not shown) installed to be matched with the centers of the lenses 130a and 132a and permitting images photographed at the lenses 130a and 132a to be formed, and CCD boards (not shown) installed with the CCD image sensors. A first bracket 160 are uprightly provided on a central upper portion of the top plate 150. Second brackets 140a and 140b are provided perpendicular to the base lateral surfaces 122a and 122b of the mount covers 128a and 128b, respectively. Thereby, the second brackets 140a and 140b are pivotably hinged to the first bracket 160. In other words, the pair of mount covers 128a and 128b are installed such that the base lateral surfaces 122a and 122b are opposite to each other. The first bracket 160 and mount covers 128a and 128b of the top plate 150 are pivotably coupled by a pair of hinge shafts 144a and 144b. Each of the mount covers 128a and 128b has a pivoting angle θ set freely without any interference. Meanwhile, when the pivoting angle θ is set, the mount covers 128a and 128b are fixed by the fixing bolts 146a and 146b. When the mount covers 128a and 128b have a tilting angle θ of a zero degree, a visible range is mainly the ceiling, so that it is unpractical on considering that a surveillance target is for the most part the bottom. Hence, the tilting angle is set to rotate up to at least 65 degrees, and thereby the bottom is mainly photographed. In another embodiment of the present invention, the tilting angle θ is designed to be manually adjusted because it is sufficient to be set on installing the camera for the first time. However, in consideration that a manager cannot easily have access to the camera device 100 installed on the ceiling, a solenoid mechanism or a tilting remote controlling means can be installed so as to control the tilting angle at a remote distance. The image processing unit (not shown) is composed of four CPU boards (not shown) for processing images transmitted from the lenses 130a and 132a, and a quad board (not shown) for integrating and outputting images divided by the four CPU boards. Thus, when the camera device 100 is installed in the center of the indoor ceiling, images on a horizontal plane can be photographed by the four lenses 132 and the four CCD image sensors without mechanical driving, and images on a vertical plane can be photographed up to the lower portion of the camera device 100 by the mount covers which is mechanically pivoted about the hinge shaft 144, as well as by the four lenses 132 and the four CCD image sensors. The other embodiment of the present invention has been described about, but not limited to, the camera device installed on the indoor ceiling to perform the surveillance function by way of an example. Of course, the camera device is installed to a motor vehicle such that a driver makes use of looking at the front and rear of the motor vehicle without any dead zone, or the camera device is used in a wildfire surveillance system, an anti-terror combat robot, a remote controlling vehicle, a security vehicle and so forth. According to yet another embodiment, as shown in Fig. 18, a lower case 210 of an image processing unit (not shown) of a camera device is provided with a top plate, which is formed with a first bracket 230 at the center thereof, such that an image input unit 220. A mount cover 250 is installed on the top plate 240. Both a top surface (not shown) and a bottom surface 254 of the mount cover 240 take a right isosceles triangle. Two right lateral surfaces 256 connecting two pairs of equal sides are installed with lenses 258 respectively, and one base lateral surface 260 connecting a pair of bases is installed with a second bracket 262. The second bracket 262 of the mount cover 250 is coupled to the first bracket 230 of the lower case 210 about a hinge shaft 264, and is tilted downward with respect to a plane. When the camera device 200 is installed on a ceiling on one indoor wall side, an image incident angle of two lenses 258 reaches 180 degrees. Therefore, it is possible to photograph 180-degree omni-direction panorama images on a horizontal plane. Further, it is possible to photograph an entire indoor space by tilting up to maximum 90 degrees, preferably 65 degrees on the horizontal plane. Further, as shown in Fig. 19, when the camera device 200 is installed on the ceiling on two indoor wall sides, the two lenses 258 are installed to be opposite to each other, so that it is possible to photograph subjects in a three-dimensional manner. In this case, the image input units of the camera device are installed on two w all s ides, the image p rocessing unit i s installed at the c enter o f the c eiling. The image input unit and the image processing unit are connected with each other through a cable, so that it is possible to save costs. As mentioned above, it can be seen that the present invention is based on the technical spirit that the lenses and image sensors, which conespond to the number got by dividing 360 degrees by the image incident angle, are installed on the same horizontal plane to photograph the 360-degree images in the panorama format, and that the lenses and image sensors photograph the 360-degree images on the horizontal plane without any mechanical driving but does not adjust the image incident angle on the vertical plane, in order to solve this problem, the hinge shaft is pivotably installed to the mount cover mounted with the lens, and thereby the lens is configured to be tilted by mechanical driving in order to photograph the image on the vertical plane. It is apparent to those skilled in the art that the present invention is intended to cover various modifications and variations within the scope of the fundamental technical spirit of the present invention. As can be seen from the foregoing, according to the present invention provides, the lenses and CCD sensors are installed one by one in every direction of the e ast, t he w est, t he so uth a nd t he n orth, s o t hat t he i nterval b etween t he C CD sensors is minimized. When the interval is father than a desired level, the exceeded interval is removed. The four image signals of the 90 degrees generated through the four lenses and CCD sensors are combined into the single image signal, and then the combined image signal is transmitted. The single image signal is displayed on the monitor at an angle of 360' degrees in such a manner that the 180-degree images arranged in two, upper and lower, lines. Accordingly, it is simple in structure and is easy in production. The CPU board is configured in the fan shape of 90 degrees, so that the four CPU boards can be fixed to one plate, and thus the four CCD sensors can be fixed at a minimum interval. Thereby, it is possible to produce the camera device for the 360-degree panorama shot capable of photographing the east, the west, the south and the north in a minimum size. For this reason, it is possible to save the production costs to the maximum extent, and to increase the subject in the maximum size to enhance the resolution to the maximum extent by displaying the scene of the monitor in a manner of arranging the 180-degree images in two lines to get the 360-degree images. Further, the invention is a useful invention in that, because each camera is configured t o facilitate assembly or d isassembly, i t i s e asy to r epair i t w hen i t i s broken, and that, because it is sufficient to substitute only the broken camera, repair costs can be reduced to the maximum extent. Meanwhile, as another use embodiment, the camera is installed to a motor vehicle, the front and rear of the motor vehicle are allowed to be recognized using a computer or monitor mounted on the motor vehicle without a dead zone. As another use embodiment, the camera is installed at a height where a sight line of a driver is located in the motor vehicle, and an image is transmitted to a remote location by wireless. Thereby, the camera can be used to drive the motor vehicle. As another use embodiment, the camera is installed to an armored vehicle, a riot vehicle, a security vehicle or so forth to provide omni-direction surveillance and record. As another use embodiment, the camera is inserted in a storage tank, a drainpipe or so forth to monitor its interior. As another use embodiment, the camera maintains a visual range on a horizontal plane in all directions of 360 degrees without any mechanical driver and adjusts another visual range on a vertical plane in an upward and downward direction up to maximum 90 degrees, so that a subject can be observed with a single glance. Further, no dead zone takes place on the lower portion of the camera device, efficiency of indoor surveillance action is maximized to meet with a demand of a user.

Claims

Claims 1. A camera device for a 360-degree panorama shot, in which a 360- degree omni-direction images are spread and viewed into one image on a monitor so as to panoramically photograph the 360-degree omni-direction images to view the image with a single glance, the camera device comprising: central processing unit (CPU) boards divided in a fan shape having a central angle of 90 degrees by uniformly dividing a circle; a CPU board shield plate installed on the CPU b oard and punched to be bent d ownward o n a b oundary o f d ividing t he r espective C PU b oards i n o rder t o preventing an interference phenomenon between the CPU boards; charge coupled device (CCD) boards standing perpendicular to the CPU shield plate and provided with CCD sensors on one side thereof; mount covers fastened by a connector outside each CCD board; lenses installed on one side of each mount cover so as to be aligned with a center of each CCD sensor; and a quad board installed on a lower portion of each CUP board, recognizing an image inputted into each CCD sensor through each lens, integrating and outputting each image signal into a single image signal.
2. The camera device according to claim 1, wherein a transparent upper dome is installed on a portion where the mount covers are projected in order to protect the lenses, a lower case is installed around the CPU boards and the other components, and the transparent upper dome and the lower case are screwed to each other.
3. The camera device according to claim 1, wherein a CCD oscillation shield plate is further installed in a crisscross shape between the mount covers so that the CCD boards operate without interference.
4. The camera device accordmg to claim 1, wherein a quad board oscillation s hield p late i s further p rovided b etween t he C PU b oards and t he q uad board so as to prevent an interference phenomenon between the CPU boards and the quad board.
5. The camera device according to claim 1, wherein supports are formed in a multi-step manner at a predetermined interval between the CPU boards and the CPU board shield plate and the quad board.
6. A method for a 360-degree panorama shot, in which 360-degree omni- direction images are spread and viewed into one image on a monitor so as to panoramically photograph the 360-degree omni-direction images to view the image with a single glance and four lenses and charge coupled device (CCD) sensors are used for a monitoring operation, the method comprising: a step of photographing each image transmitted through the four lenses having a horizontal angle of 90 degrees on a screen of a monitor by means of the four CCD sensors and central processing unit (CPU) boards; a step of inputting each of the photographed four images into a quad board; a step of integrating and outputting the four images into a single quad image by means of the quad board; a step of transmitting the outputted single image to a monitor by wire or wireless; and a step of spreading images covering a total of 360 degrees by 180 degrees in two upper and lower lines on a screen of a general video monitor.
7. A camera device for a 360-degree panorama shot, having an image input unit for photographing images using four lenses having an image incident angle of about 90 degrees and an image processing unit for recognizing and processing the inputted images in order to panoramically photograph the 360-degree omni-direction images to spread a single image on a screen of a monitor, characterized in that: the four lenses are symmetrically installed in twos per group and are each independently operated; the lenses of each group are installed in a fixed manner with respect to a horizontal plane and installed in a upwardly and downwardly tilted manner with respect to a vertical plane.
8. The c amera d evice according to e laim 7 , wherein t he 1 enses o f e ach group having bottom and top surfaces taking a right isosceles triangle, and are installed to a mount cover of a angular prism shape which two right lateral surfaces connecting two pairs of equal sides are installed outward and which one base lateral surface connecting a pair of bases installed inward.
9. The camera device according to claim 8, wherein an upper case protecting the image input unit takes a transparent semi-spherical shape and a lower case protecting the image processing unit is detachably installed to the upper case; the lower case is provided with a predetermined area of plane so that the image input unit is installed; a first bracket is provided at a center of the plane to be perpendicular to the plane; a second bracket is provided outside the base of the mount cover to be perpendicular to the base and is coupled with the first bracket to be tiltable via a hinge shaft.
10. A camera device for a 360-degree panorama shot, having an image input unit for photographing/inputting images using two lenses having an image incident angle of about 90 degrees and an image processing unit for recognizing and processing the inputted images in order to panoramically photograph the 360-degree omni-direction images to spread a single image on a screen of a monitor, characterized in that: the two lenses secure a view angle of 180 degrees with respect to all horizontal directions at all times without movement and are a view angle of maximum 90 degrees with respect to a downward direction with tiltable movement.
11. The camera device according to claim 10, wherein an upper case protecting the image input unit is provided with a predetermined area of plane so that the image input unit is installed; a mount cover is fastened on the p lane and taking a r ight t riangular p rism s hape h aving b ottom a nd t op s urfaces formed a t a right angle, having the lenses installed on two right lateral surfaces connecting two pairs of equal sides and a second bracket installed outward on one base lateral surface connecting a pair of bases; the second bracket is hinged with a first bracket on the plane to be tilted downward to the plane.
12. The camera device according to claim 7 or 10, wherein the image processing unit includes four central processing unit (CPU) boards for processing images transmitted from the lenses, and a quad board for integrating and outputting the images divided by the four CPU boards.
13. The camera device according to claim 8 or 11, wherein charge coupled device (CCD) boards are installed inside the mount cover to be perpendicular to the base, and CCD image sensors are installed on the CCD boards to be aligned with centers of the lenses.
14. The camera device according to claim 9 or 11, wherein the mount cover has a tilting angle (θ) of at least 65 degrees in a downward direction.
15. The camera device according to claim 9 or 11, wherein the mount cover has a tilting angle (θ) capable of being controlled at a remote distance.
16. The camera device according to claim 9 or 11, wherein the camera device monitors an indoor space with the lower case attached upside down on a ceiling.
17. The camera device according to claim 9 or 11, wherein the camera device monitors a street public safety, a wildfire, a terror and the other exteriors with the lower case installed on an outdoor structure.
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