WO2019209069A1 - 광각 영상 제공 방법 - Google Patents
광각 영상 제공 방법 Download PDFInfo
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
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Definitions
- An embodiment of the present invention relates to a wide-angle image providing method.
- CCTV cameras are used for crime prevention in general homes or in places such as department stores, banks, exhibition halls, etc. to prevent and prevent intrusion, theft or fire in advance, and are installed to promptly deal with accidents. .
- such a CCTV camera system is installed in a specific place for a specific purpose and is used for the purpose of monitoring the image from a remote place in order to monitor all the situations. It is generally installed on the wall or ceiling and set in a specific direction.
- cameras used in CCTV and the like generally have an angle of view of 30 ° to 70 °, and the shooting range is limited so that a blind spot exists.
- a fish-eye lens or the like is used. The same wide-angle lens is used.
- a camera equipped with a wide-angle lens has a characteristic that a focal length is shorter and a field of view is wider than that of a standard lens, and the acquired image has a radial distortion. ) And distortion of the object occurs.
- the image taken by the panoramic camera according to the prior art has a problem that the position distortion phenomenon occurs.
- the present invention has been made to solve the above-described problem, the wide-angle image providing system according to the present invention has no blind spots, provides a wide-angle image without wide-angle distortion, perspective distortion, contrast and chromatic aberration, and wide-angle without distortion It is possible to output the image in VR form by providing the image and to prevent distortion even when the image is reduced or enlarged.
- the wide-angle image providing system is to utilize a variety of camera modules, such as mobile cameras, CCTV cameras, web cameras, and to provide a wide-angle image through correction using a dedicated program or a dedicated mobile application.
- the wide-angle image providing system provides a wide-angle image providing method and system that can be applied to the entire industry, such as cars, drones, mobile, cameras, ships, rockets, medical, defense, home, leisure, etc. I would like to.
- the method for providing a wide-angle image generates a first region image in which the first camera module photographs the first region, and the second camera module includes a first camera.
- the distortion correction step is to correct the perspective distortion after the wide angle distortion correction of the first and second region images, respectively
- the phase difference correction step is the phase difference correction unit
- coordinate rotation is moved to adjust the position of the first and second region images
- the overlap correction unit adjusts the size of the first and second region images, respectively.
- the coordinates are moved to overlap the coordinates, and the color correction step may adjust brightness and chromatic aberration of the overlapped image corrected by the color correction unit.
- the photographing step includes the first and second camera modules to be photographed at an angle of 110 ° to 135 ° from each other. An image can be generated.
- the method for providing a wide-angle image generates a first region image in which the first camera module photographs the first region, and a second camera module adjacent to the right side of the first region. Generates a second region image photographing the region, the third camera module generates a third region image photographing the third region adjacent to the lower side of the first region, and the fourth camera module generates a second region image of the second region.
- the distortion correction unit corrects perspective distortion after wide-angle distortion correction of the first, second, third, and fourth region images, respectively, and the phase difference correction step includes the phase difference.
- the correction unit extracts the horizontal reference point of the first, second, third, and fourth region images
- coordinates are moved to adjust the position of the first, second, third, and fourth region images
- the overlapping correction step is the overlap correction.
- the coordinates are moved to overlap the coordinates, and the color correction step controls the brightness and chromatic aberration of the overlapped image corrected by the color correction unit. Can be.
- the photographing step may further include adjusting the angles formed by the first, second, third, and fourth camera modules.
- the method for providing a wide-angle image generates a first region image in which the first camera module photographs the first region, and a second camera module adjacent to the right side of the first region.
- Generate a second region image photographing the region the third camera module generates a third region image photographing the third region that is opposite to the first region, and the fourth camera module is the opposite side of the second region
- a photographing step of generating a fourth region image photographing a fourth region adjacent to the right side of the third region A distortion correction step of distorting the first, second, third, and fourth region images by the distortion correction unit;
- a phase difference correction step of performing phase difference correction on each of the first, second, third, and fourth region images corrected by the phase difference correction unit;
- An overlap correction step of overlapping and correcting the first, second, third, and fourth region images corrected by the phase difference so that the region images are adjacent to each other;
- the distortion correction unit corrects perspective distortion after wide-angle distortion correction of the first, second, third, and fourth region images, respectively, and the phase difference correction step includes the phase difference.
- the correction unit extracts the horizontal reference point of the first, second, third, and fourth region images
- coordinates are moved to adjust the position of the first, second, third, and fourth region images
- the overlapping correction step is the overlap correction.
- the coordinates are moved to overlap the coordinates, and the color correction step controls the brightness and chromatic aberration of the overlapped image corrected by the color correction unit. Can be.
- the photographing step includes adjusting the angles formed by the first and second camera modules; And adjusting an angle between the third and fourth camera modules.
- the image can be output in a VR form, and distortion does not occur even when the image is reduced or enlarged.
- the present invention can utilize a variety of camera modules, such as a mobile camera, a CCTV camera, a web camera, and can provide a wide-angle image through the correction using a dedicated program or a dedicated mobile application.
- camera modules such as a mobile camera, a CCTV camera, a web camera
- an image of a wide field of view may be provided by applying to an entire industry where cameras such as automobiles, drones, mobiles, cameras, ships, rockets, medical care, defense, homes, and leisures are used.
- FIG. 1 is a block diagram of a wide-angle image providing system according to an embodiment of the present invention.
- FIG. 2 is a flowchart illustrating a wide-angle image providing method according to an embodiment of the present invention.
- FIG 3 is a view for explaining a photographing area of the first and second cameras according to an exemplary embodiment of the present invention.
- 4 to 8 are diagrams for explaining a first and second region image correction process for explaining a wide-angle image providing method according to an embodiment of the present invention.
- FIG 9 and 10 are views illustrating an arrangement position of first and second cameras according to an embodiment of the present invention.
- 11 and 12 are diagrams illustrating a photographing arrangement angle of a camera according to an arrangement position of first and second cameras according to an embodiment of the present invention.
- 13 to 15 are views illustrating a correction booth for the correction of the wide-angle image providing method according to an embodiment of the present invention.
- 16 is a perspective view of a camera module of a wide-angle image providing system according to an embodiment of the present invention.
- 17 is an exploded view of a camera module of a wide-angle image providing system according to an embodiment of the present invention.
- FIG. 18 is a diagram for describing a method of arranging and adjusting an angle of a camera module of a wide-angle image providing system according to an exemplary embodiment of the present invention.
- 19 is a block diagram of a wide-angle image providing system according to another embodiment of the present invention.
- 20 is a flowchart illustrating a wide-angle image providing method according to another exemplary embodiment of the present invention.
- 21 to 25 are diagrams for describing a process of correcting a first, second, third, and fourth region image for explaining a wide-angle image providing method according to another exemplary embodiment of the present invention.
- 26 to 28 are views illustrating a correction booth for correcting a wide-angle image providing method according to another exemplary embodiment of the present invention.
- FIG. 29 is a view illustrating photographing arrangement angles of the first, second, third and fourth cameras according to the arrangement positions of the first, second, third and fourth cameras according to another embodiment of the present invention.
- FIG. 30 is a perspective view of a camera module of a wide-angle image providing system according to another exemplary embodiment.
- FIG. 31 is an exploded view of a camera module of a wide-angle image providing system according to another exemplary embodiment.
- 32 to 36 are diagrams for describing a correction process of first, second, third, and fourth region images for explaining a wide-angle image providing method according to another exemplary embodiment of the present invention.
- 37 to 39 are views illustrating a correction booth for correcting a wide-angle image providing method according to another embodiment of the present invention.
- FIG 40 is a view illustrating a photographing arrangement angle of the first, second, third and fourth cameras according to the arrangement positions of the first, second, third and fourth cameras according to another embodiment of the present invention.
- 41 is a configuration diagram of a camera module of a wide-angle image providing system according to another embodiment of the present invention.
- FIG. 42 is a perspective view of a camera module of a wide-angle image providing system according to another embodiment of the present invention.
- FIG. 43 is a view illustrating an angle adjusting method of a camera module of a wide-angle image providing system according to another embodiment of the present invention.
- 44 is an exploded view of a camera module of a wide-angle image providing system according to another embodiment of the present invention.
- FIG. 1 is a block diagram of a wide-angle image providing system according to an embodiment of the present invention.
- the configuration of the wide-angle image providing system according to an exemplary embodiment of the present invention will be described with reference to FIG. 1.
- a wide-angle image providing system includes a first camera module 110, a second camera module 120, a correction processor 130, and an image storage unit 140.
- the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, an overlap correction unit 133, and a color correction unit 134.
- the first camera module 110 generates a first region image photographing the first region
- the second camera module 120 generates a second region image photographing the second region adjacent to the first region.
- the first camera module 110 may generate a first region image that is a left image by photographing an area corresponding to a left side of an area to be photographed, and the second camera module 120. Captures an area corresponding to the right side of the area to be photographed to generate a second area image that is a right image.
- the photographing surfaces of the first camera module 110 and the second camera module 120 are disposed at an angle of 110 ° to 135 ° with each other, such that the first camera module 110 and the second camera are disposed.
- the image photographed by the camera module 120 may provide an image having an angle of view of 180 ° to 200 ° and up and down to 90 ° to 110 °.
- the images photographed by the first and second cameras 110 and 120 include wide-angle distortion and perspective distortion.
- the images photographed by using two cameras are overlapped to be adjacent to each other, a phase difference, an overlapped area, and a business card difference are obtained. Or chromatic aberration occurs.
- the correction processor 130 corrects the distortion, phase difference, overlapped area, business card difference, or chromatic aberration of the image as described above. That is, the correction processor 130 corrects distortion and phase difference of the first and second region images photographed by the first and second cameras 110 and 120, respectively, and overlaps the phase difference corrected first and second region images. Calibrate and color correct.
- the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, an overlap correction unit 133, and a color correction unit 134.
- the distortion correcting unit 131 corrects the distortion of the first region image photographed by the first camera module 110
- the phase difference correcting unit 132 corrects the phase difference of the first and second region images corrected for each distortion.
- the overlap correction unit 133 overlaps and corrects the phase-corrected first and second region images to be adjacent to each other
- the color correction unit 134 may color-correct the overlapped and corrected overlapping images.
- the distortion correction unit 131 corrects perspective distortion after wide-angle distortion correction of the first and second region images
- the phase difference correction unit 132 adjusts the first and second region images.
- the coordinate rotation is moved to adjust the position of the first and second region images
- the overlap correction unit 133 adjusts the size of the first and second region images, and then moves the coordinates to overlap each other.
- Position adjustment so as to, and the color correction unit 134 may adjust the brightness and chromatic aberration of the superimposed and superimposed image.
- the image storage unit 140 may store the image corrected and synthesized by the correction processor 130 as described above.
- a wide-angle image without blind spots and without wide-angle distortion, perspective distortion, contrast and chromatic aberration can be provided.
- FIG. 2 is a flowchart illustrating a method for providing a wide-angle image according to an embodiment of the present invention
- FIG. 3 is a view for explaining a photographing area of the first and second cameras according to an embodiment of the present invention.
- 4 to 8 are diagrams for explaining a first and second region image correction process for explaining a wide-angle image providing method according to an embodiment of the present invention.
- the first camera module corresponding to the left camera generates and extracts a first area image photographing the first area (S210), and corresponds to the right camera (right camera).
- the second camera module generates and extracts a second region image photographing the second region adjacent to the first region (S211).
- the extracted first and second region images include perspective distortion and wide-angle distortion. Therefore, the distortion correcting unit corrects the wide-angle distortion and the perspective distortion of the first and second region images, respectively, with reference to the distortion constant (S220 and S221).
- FIG 4 shows the first and second region images in which the wide-angle distortion correction and the perspective distortion correction are thus performed.
- the phase difference correction unit extracts a horizontal reference point of the first and second region images corrected for the wide angle distortion and the perspective distortion by referring to a phase difference constant, and then moves the coordinates as shown in FIG.
- the position of the second region image is adjusted (S230 and S231), and the first and second region images adjusted by the coordinate rotation movement and position are respectively stored (S235 and S236).
- the overlap correcting unit adjusts the size of the stored first and second area images with reference to the overlap constant, and then moves the coordinates to position the overlap as shown in FIG. 6 (S240).
- a position-controlled overlapping image includes a first region image 111 in which the first camera module 110 photographs the first region, and a second region in which the second camera module 120 photographs the second region. It consists of a two-zone image 121, the overlapping area 301 is generated, the overlapping area 301 is the first camera module correction region 112 and the second camera module correction region 122, respectively ).
- the color compensator adjusts brightness and chromatic aberration with reference to a color constant for the overlapped image corrected by overlapping as shown in FIG. 7, and the first and second region images are overlapped and synthesized as shown in FIG. 8. It generates and stores (S250, S255), and outputs the composite image stored in this way (S260).
- FIGS. 11 and 12 are diagrams showing arrangement positions of the first and second cameras according to an embodiment of the present invention
- FIGS. 11 and 12 are arrangement positions of the first and second cameras according to the embodiment of the present invention.
- the figure shows the photographing arrangement angle of the camera.
- 13 to 15 are diagrams illustrating a correction booth for correcting a wide-angle image providing method according to an exemplary embodiment of the present invention.
- the photographing surfaces of the first and second cameras are 110 ° to 135 ° to each other as shown in FIG.
- the first and second cameras and the wall may be disposed at an angle of 27 ° to 35 °, and may provide an image of other areas except the corresponding side (wall).
- first and second cameras when the first and second cameras are disposed to face the ground, such as a place such as a ceiling, as shown in FIG. 10, as illustrated in FIG. It may be disposed at an angle to provide an image of all surfaces of both sides and an image of some surfaces of the remaining both sides.
- FIG. 13 illustrates a calibration booth for correcting wide angle distortion and perspective distortion according to an embodiment of the present invention
- FIG. 14 illustrates a correction booth for correcting an overlapping image according to an embodiment of the present invention. (Calibration Booth) is shown.
- FIG. 15 illustrates a correction booth for correcting brightness and chromatic aberration of an area image according to an embodiment of the present invention.
- a wide angle image without wide-angle distortion, perspective distortion, contrast and chromatic aberration can be provided, and a wide-angle image without distortion can be provided to output an image in VR form.
- No distortion occurs when the image is reduced or enlarged.
- an image of a wide field of view may be provided by applying to an entire industry where cameras such as automobiles, drones, mobiles, cameras, ships, rockets, medical care, defense, homes, and leisures are used.
- FIG. 16 is a perspective view of a camera module of a wide-angle image providing system according to an embodiment of the present invention
- FIG. 17 is an exploded view of a camera module of a wide-angle image providing system according to an embodiment of the present invention
- FIG. 1 is a diagram illustrating a method of arranging and adjusting an angle of a camera module of a wide angle image providing system according to an exemplary embodiment.
- a first camera module 110 includes a first lens module 111, a first image sensor module 112, and a first structure 113. It is configured by.
- the first image sensor module 112 generates a first region image photographing the first region through the first lens module 111, and the first structure 113 includes the first lens module 111 and the It may be configured to receive the first image sensor module 112.
- the second camera module 120 may include a second lens module 121, a second image sensor module 122, and a second structure 123
- the second image sensor module 122 may include the first lens. 2 generates a second region image photographing the second region through the lens module 121, and the second structure 123 accommodates the second lens module 121 and the first image sensor module 122. Can be configured.
- first and second structures 113 and 123 may be formed of an aluminum frame for weight reduction.
- first and second link units 115 and 125 are coupled to respective one sides of the first and second camera modules 110 and 120, respectively, and the circular plate 150 is fixed to the fixing plate 160 by a motor. Rotating, the circular plate 150 may be configured to include a curved groove 151 to which the first, second, link portions 115 and 125 are coupled and move.
- first and second camera modules 110 and 120 are configured such that each other side opposite to the one side is hinged to each other, and the first and second link parts 115 and 125 are the circular plate 150.
- the curved groove 151 may be moved by the rotation of) to adjust angles formed by the first and second camera modules 110 and 120.
- the motor is controlled to rotate the circular plate 150 to adjust the angle between the first and second camera modules 110 and 120 and zoom in. And through the zoom out can obtain an optimal image capture angle.
- angles of the first and second camera modules 110 and 120 may be determined according to angles of view of the first and second camera modules 110 and 120.
- ⁇ is the angle of the first and second camera modules to the bottom surface
- a is the horizontal angle of view of the first and second camera modules.
- ⁇ is the angle of the image module of each of the first and second camera modules
- b is the vertical angle of view of the first and second camera modules
- each of the first and second camera modules 110 when the first and second camera modules 110 and 120 are disposed as illustrated in FIGS. 16 and 18, each of the first and second camera modules 110, The angle formed by the 120 with the bottom surface may be calculated, and the angles of the image modules 112 and 122 of the first and second camera modules 110 and 120 may be calculated and applied using Equation 2.
- FIG. 19 is a block diagram of a wide-angle image providing system according to another embodiment of the present invention.
- the configuration of a wide-angle image providing system according to another exemplary embodiment of the present invention will be described with reference to FIG. 19.
- a wide-angle image providing system may include a first camera module 110, a second camera module 115, a third camera module 120, and a fourth camera module ( 125, the correction processor 130, and the image storage 140, and the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, and an overlap correction unit 133. ) And a color corrector 134.
- the first camera module 110 generates a first region image photographing the first region
- the second camera module 115 captures a second region image photographing the second region rightwardly adjacent to the first region.
- the third camera module 120 generates a third region image photographing a third region adjacent to the lower side of the first region
- the fourth camera module 125 generates a lower region of the second region and the A fourth area image of the fourth area adjacent to the right side of the third area is generated.
- the first camera module 110 may generate a first region image, which is an upper left image, by photographing an area corresponding to an upper left of an area to be photographed, and the second camera module.
- a region corresponding to an upper right side of the region to be photographed may be photographed to generate a second region image that is an upper right image.
- the third camera module 120 may generate a third region image, which is a lower left image, by photographing an area corresponding to a lower left of an area to be photographed, and the fourth camera module 125. ) May generate a fourth region image which is a lower right image by photographing an area corresponding to a lower right side of the region to be photographed.
- the images photographed by the first, second, third, and fourth camera modules 110, 115, 120, and 125 have wide-angle distortion and perspective distortion, and overlapping images photographed using four cameras adjacent to each other. Phase difference, superimposed region, business card difference, or chromatic aberration.
- the correction processor 130 corrects the distortion, phase difference, overlapped area, business card difference, or chromatic aberration of the image as described above. That is, the correction processor 130 corrects distortion and phase difference of the first, second, third, and fourth region images photographed by the first, second, third, and fourth camera modules 110, 115, 120, and 125, respectively. The overlap correction and color correction are performed on the phase difference corrected first, second, third and fourth region images.
- the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, an overlap correction unit 133, and a color correction unit 134.
- the distortion correction unit 131 corrects the distortion of the first, second, third, and fourth region images
- the phase difference correction unit 132 corrects the phase differences of the first, second, third, and fourth region images, respectively.
- the overlap correction unit 133 overlaps and corrects the phase-corrected first, second, third, and fourth region images to be adjacent to each other
- the color correction unit 134 corrects the overlapped images that are overlapped and corrected. can do.
- the distortion correction unit 131 corrects perspective distortion after wide-angle distortion correction of the first, second, third, and fourth region images, respectively, and the phase difference correction unit 132 performs the first, second, and third distortion corrections.
- the coordinate rotation is moved to adjust the position of the first, 2, 3, 4 region image, and the overlap corrector 133 is configured to control the first, second, After adjusting the 3 and 4 region images, the coordinates are moved to overlap the coordinates, and the color corrector 134 may adjust brightness and chromatic aberration of the overlapped and corrected overlapped images.
- the image storage unit 140 may store the image corrected and synthesized by the correction processor 130 as described above.
- FIG. 20 is a flowchart illustrating a wide-angle image providing method according to another exemplary embodiment of the present invention
- FIGS. 21 to 25 are first and second diagrams illustrating a wide-angle image providing method according to another exemplary embodiment of the present invention.
- FIG. 4 illustrates a process of correcting 3,4 region images.
- a first camera module corresponding to an up left camera generates and extracts a first area image photographing a first area (S210), and then an up right camera.
- the second camera module corresponding to the second camera module generates and extracts a second region image photographing the second region adjacent to the right side of the first region (S211).
- the third camera module corresponding to the down left camera generates and extracts a third region image photographing the third region (S212), and the fourth camera module corresponding to the down right camera.
- the second region image photographing the second region adjacent to the lower side of the second region and to the right side of the third region is generated and extracted (S213).
- the extracted first, second, third, and fourth region images include perspective distortion and wide-angle distortion. Therefore, the distortion correcting unit corrects the wide-angle distortion and the perspective distortion of the first, second, third, and fourth region images, respectively, with reference to the distortion constant (S220, S221, S222, and S223).
- FIG. 21 shows the first, second, third and fourth region images in which wide-angle distortion correction and perspective distortion correction are performed.
- the phase difference correction unit extracts a horizontal reference point of the first, second, third, and fourth region images corrected for the wide-angle distortion and the perspective distortion by referring to a phase difference constant, and then moves the coordinate rotation as shown in FIG. 22.
- the position of the first, second, third, fourth region image S230.
- the overlap corrector adjusts the size of the stored first, second, third, and fourth region images by referring to the overlap constant, and then moves coordinates, as shown in FIG. 23.
- the position is adjusted to overlap each other between the four region images (S240).
- the color corrector adjusts brightness and chromatic aberration with reference to a color constant for the superimposed image corrected by overlapping as shown in FIG. 24, and the first, second, third, and fourth region images are displayed as shown in FIG.
- the superimposed and synthesized images may be generated and stored (S250 and S255), and the synthesized images thus stored may be output (S260).
- 26 to 28 are views illustrating a correction booth for correcting a wide-angle image providing method according to another exemplary embodiment of the present invention.
- FIG. 26 illustrates a calibration booth for correcting wide angle distortion and perspective distortion according to another embodiment of the present invention
- FIG. 27 illustrates correction of an overlapping image according to another embodiment of the present invention. A calibration booth is shown.
- FIG. 28 illustrates a correction booth for correcting brightness and chromatic aberration of an area image according to another exemplary embodiment of the present invention.
- a wide-angle image without wide-angle distortion, perspective distortion, contrast and chromatic aberration can be provided, and a wide-angle image without distortion can be provided to output an image in VR form. Also, distortion does not occur when the image is reduced or enlarged.
- a wide field of view image may be provided by applying to an entire industry in which cameras such as automobiles, drones, mobiles, cameras, ships, rockets, medical care, defense, homes, and leisures are used.
- FIG. 29 is a view illustrating photographing arrangement angles of the first, second, third and fourth cameras according to the arrangement positions of the first, second, third and fourth cameras according to another embodiment of the present invention.
- the first, second, third, and fourth cameras may provide a front view image having a wide angle of view of 200 ° left and right and 200 ° up and down without a blind spot. Can be.
- first, second, third and fourth cameras are arranged on the side vertically placed from the ground such as the wall surface as shown in FIG. 29 (b), images of other areas except the corresponding side (wall surface) are displayed. Can be photographed and provided.
- FIG. 30 is a configuration diagram of a camera module of the wide-angle image providing system according to another embodiment of the present invention
- FIG. 31 is a perspective view of a camera module of the wide-angle image providing system according to another embodiment of the present invention.
- the first, second, third, and fourth camera modules 110, 115, 120, and 125 are each a lens module 111, an image sensor module 112, and a structure. It may be configured to include (113).
- the image sensor module 112 generates an area image photographing the corresponding area through the lens module 111, and the structure 113 may be configured to receive the lens module 111 and the image sensor module 112. Can be.
- the structure 113 may be composed of an aluminum frame to reduce the weight.
- ⁇ is the angle between the first, second, third and fourth camera modules, and a is the horizontal angle of view of the first, second, third and fourth camera modules.
- the first, second, third, and fourth camera modules 110, 115, 120, and 125 may be used to arrange the first, second, third, and fourth camera modules 110, 115, 120, and 125.
- the angles between the 3, 4 camera modules 110, 115, 120, and 125 may be calculated, and the image modules of the first, 2, 3, and 4 camera modules 110, 115, 120, and 125 may be calculated using Equation 4.
- the angle of 112 can be calculated and placed.
- the wide-angle image providing system may include a first camera module 110, a second camera module 115, a third camera module 120, and a fourth camera module.
- a correction processor 130 and an image storage 140 and the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, and an overlap correction unit ( 133 and the color corrector 134.
- the first camera module 110 generates a first region image photographing the first region
- the second camera module 115 captures a second region image photographing the second region rightwardly adjacent to the first region.
- the third camera module 120 generates a third region image photographing the third region, which is the opposite side of the first region
- the fourth camera module 125 is the opposite side of the second region and the third region image.
- a fourth area image of the fourth area adjacent to the left side of the area is generated.
- the first camera module 110 may generate a first area image that is a front left image by photographing an area corresponding to the front left, and the second camera module 115 may face the front.
- a second area image that is a front right image may be generated by photographing an area corresponding to a front up side.
- the third camera module 120 may capture a region corresponding to a back left to generate a third region image that is a rear left image, and the fourth camera module 125 may have a rear right side ( a fourth region image, which is a rear right image, may be generated by photographing a region corresponding to back right).
- the images photographed by the first, second, third, and fourth camera modules 110, 115, 120, and 125 have wide-angle distortion and perspective distortion, and overlapping images photographed using four cameras adjacent to each other. Phase difference, superimposed region, business card difference, or chromatic aberration.
- the correction processor 130 corrects the distortion, phase difference, overlapped area, business card difference, or chromatic aberration of the image as described above. That is, the correction processor 130 corrects distortion and phase difference of the first, second, third, and fourth region images photographed by the first, second, third, and fourth camera modules 110, 115, 120, and 125, respectively. The overlap correction and color correction are performed on the phase difference corrected first, second, third and fourth region images.
- the correction processor 130 may include a distortion correction unit 131, a phase difference correction unit 132, an overlap correction unit 133, and a color correction unit 134.
- the distortion correction unit 131 corrects the distortion of the first, second, third, and fourth region images
- the phase difference correction unit 132 corrects the phase differences of the first, second, third, and fourth region images, respectively.
- the overlap correction unit 133 overlaps and corrects the phase-corrected first, second, third, and fourth region images to be adjacent to each other
- the color correction unit 134 corrects the overlapped images that are overlapped and corrected. can do.
- the distortion correction unit 131 corrects perspective distortion after wide-angle distortion correction of the first, second, third, and fourth region images, respectively, and the phase difference correction unit 132 performs the first, second, and third distortion corrections.
- the coordinate rotation is moved to adjust the position of the first, 2, 3, 4 region image, and the overlap corrector 133 is configured to control the first, second, After adjusting the 3 and 4 region images, the coordinates are moved to overlap the coordinates, and the color corrector 134 may adjust brightness and chromatic aberration of the overlapped and corrected overlapped images.
- the image storage unit 140 may store the image corrected and synthesized by the correction processor 130 as described above.
- a wide-angle image without blind spots and without wide-angle distortion, perspective distortion, contrast and chromatic aberration can be provided.
- 32 to 36 are diagrams for describing a correction process of first, second, third, and fourth region images for explaining a wide-angle image providing method according to another exemplary embodiment of the present invention.
- the first camera module corresponding to the up left camera generates and extracts a first area image photographing the first area (S210), and the up right camera.
- the second camera module corresponding to the second camera module generates and extracts a second region image photographing the second region adjacent to the right side of the first region (S211).
- the third camera module corresponding to the back left camera generates and extracts a third region image photographing the third region (S212), and the fourth camera corresponding to the back right camera.
- the module generates and extracts a second region image photographing the second region adjacent to the lower side of the second region and to the right of the third region (S213).
- the extracted first, second, third, and fourth region images include perspective distortion and wide-angle distortion. Therefore, the distortion correcting unit corrects the wide-angle distortion and the perspective distortion of the first, second, third, and fourth region images, respectively, with reference to the distortion constant (S220, S221, S222, and S223).
- FIG. 32 shows the first and second region images in which wide-angle distortion correction and perspective distortion correction are thus performed.
- the phase difference correction unit extracts a horizontal reference point of the first, second, third, and fourth region images corrected for the wide-angle distortion and the perspective distortion by referring to a phase difference constant, and then moves the coordinate rotation as shown in FIG. 33.
- the position of the first and second region images is adjusted, and the position of the third and fourth region images is also adjusted (S230).
- the overlap correcting unit adjusts the size of the stored first, second, third, and fourth region images with reference to the overlap constant, and then adjusts the positions so as to overlap as shown in FIG. 34 (S240). .
- the color corrector adjusts brightness and chromatic aberration with reference to a color constant for the superimposed image corrected by overlapping as shown in FIG. 35, and the first, second, third, and fourth region images are displayed as shown in FIG.
- the superimposed and synthesized images may be generated and stored (S250 and S255), and the synthesized images thus stored may be output (S260).
- 37 to 39 are views illustrating a correction booth for correcting a wide-angle image providing method according to another embodiment of the present invention.
- FIG. 37 illustrates a calibration booth for correcting wide-angle distortion and perspective distortion according to an embodiment of the present invention
- FIG. 38 illustrates a correction booth for correcting an overlapping image according to an embodiment of the present invention. (Calibration Booth) is shown.
- 39 illustrates a correction booth for correcting brightness and chromatic aberration of an area image according to an embodiment of the present invention.
- a wide angle image without wide-angle distortion, perspective distortion, contrast and chromatic aberration can be provided, and a wide-angle image without distortion can be provided to output an image in VR form.
- No distortion occurs when the image is reduced or enlarged.
- an image of a wide field of view may be provided by applying to an entire industry where cameras such as automobiles, drones, mobiles, cameras, ships, rockets, medical care, defense, homes, and leisures are used.
- FIG. 40 is a view illustrating photographing arrangement angles of the first, second, third and fourth cameras according to the arrangement positions of the first, second, third and fourth cameras according to an exemplary embodiment of the present invention.
- the first, second, third, and fourth cameras may provide a front view image having a wide angle of view of 360 ° left and right, 90 ° to 100 ° up and down without a blind spot in an area except for the floor and the ceiling. Can be.
- first, second, third and fourth cameras are arranged on the side of the camera which is perpendicular to the ground, such as a wall, as shown in (b) of FIG. 40, images of other areas except the floor and the ceiling are photographed. Can provide.
- FIG. 41 is a configuration diagram of a camera module of the wide-angle image providing system according to an embodiment of the present invention
- FIG. 42 is a perspective view of a camera module of the wide-angle image providing system according to an embodiment of the present invention.
- FIG. 43 is a view illustrating an angle adjusting method of a camera module of the wide-angle image providing system according to an embodiment of the present invention
- FIG. 44 is a view of a camera module of the wide-angle image providing system according to an embodiment of the present invention. It is a development view.
- the first, second, third and fourth camera modules 110, 115, 120, and 125 are respectively a lens module 111 and an image sensor module 112. And a structure 113.
- the image sensor module 112 generates an area image photographing the corresponding area through the lens module 111, and the structure 113 may be configured to receive the lens module 111 and the image sensor module 112. Can be.
- the structure 113 may be configured of an aluminum frame for light weight
- the fixed type wide-angle image providing system may include first, second, third, and fourth camera modules 110, 115, and 120. , 125) is fixed to be disposed on four sides and may be configured as a square photographing system for photographing 360 °.
- the first and second link units 151 and 152 are coupled to respective one sides of the first and second camera modules 110 and 115, and similarly, the third and fourth link units ( 153 and 154 are coupled to each side of the third and fourth camera modules 120 and 125, respectively, and the circular plate 150 may be fixed between the fixing plates 160 and 161 to be rotated by a motor. have.
- the circular plate 150 may be configured to include curved grooves to which the first, second, third and fourth link portions 151 and 152 are coupled and move.
- the first and second camera modules 110 and 115 are configured such that each other side opposite to the one side is hinged to each other, and the first and second link parts 151 and 152 are the circular plate 150.
- the curved groove is moved by the rotation of), and similarly, the 3,4 camera modules 120 and 125 are configured such that the other sides facing each other are hinged to each other, so that the third and fourth link units 153 , 154 may move the curved groove by the rotation of the circular plate 150.
- angles formed by the first, second, third, and fourth camera modules 110, 115, 120, and 125 may be adjusted by the rotation of the circular plate 150.
- the first, second, third, and fourth camera module 110, 115, 120, and 125 is controlled by rotating the circular plate 150 by controlling a motor. By adjusting the angle between (110, 115, 120, 125), and zooming in and out to obtain the optimum image capture range.
- the first, second, third, and fourth camera modules 110, 115, 120, and 125 may be configured according to the angles of view of the first, second, third, and fourth camera modules 110, 115, 120, and 125. You can set the angle.
- ⁇ is the angle between the first, second, third and fourth camera modules, and a is the horizontal angle of view of the first, second, third and fourth camera modules.
- the first, second, third, and fourth camera modules 110, 115, 120, and 125 may be used to arrange the first, second, third, and fourth camera modules 110, 115, 120, and 125.
- the angle between the 3,4 camera modules 110, 115, 120, and 125 may be calculated, and the image module of each of the first, second, third, and fourth camera modules 110, 115, 120, and 125 may be calculated using Equation 2.
- the angle of 112 can be calculated and placed.
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Abstract
Description
Claims (9)
- 제1 카메라 모듈이 제1 영역을 촬영한 제1 영역영상을 생성하고, 제2 카메라 모듈이 제1 영역에 인접하는 제2 영역을 촬영한 제2 영역영상을 생성하는 촬영 단계;왜곡 보정부가 상기 제1,2 영역영상을 각각 왜곡 보정하는 왜곡 보정 단계;위상차 보정부가 상기 왜곡 보정한 제1,2 영역영상을 각각 위상차 보정하는 위상차 보정 단계;중첩 보정부가 상기 위상차 보정한 제1,2 영역영상을 영역영상을 상호 인접하도록 중첩하여 보정하는 중첩 보정 단계; 및색상 보정부가 상기 중첩하여 보정한 제1,2, 영역영상을 색상 보정하는 색상 보정 단계;를 포함하는 광각 영상 제공 방법.
- 청구항 1에 있어서,상기 왜곡 보정 단계는 상기 왜곡 보정부가 상기 제1,2 영역영상을 각각 광각왜곡 보정 후, 원근왜곡을 보정하고,상기 위상차 보정 단계는 상기 위상차 보정부가 상기 제1,2 영역영상의 수평 기준점을 추출 후, 좌표회전 이동을 하여 상기 제1,2 영역영상의 위치를 조절하고,상기 중첩 보정 단계는 상기 중첩 보정부가 상기 제1,2 영역영상을 각각 크기 조절 후, 좌표를 이동하여 중첩되도록 위치조절하고,상기 색상 보정 단계는 상기 색상 보정부가 상기 중첩하여 보정한 중첩영상의 밝기 및 색수차를 조절하는 광각 영상 제공 방법.
- 청구항 1에 있어서,상기 촬영 단계는,상기 제1,2 카메라 모듈이 상호간에 이루는 각도를 조절하는 단계;를 더 포함하는 광각 영상 제공 방법.
- 제1 카메라 모듈이 제1 영역을 촬영한 제1 영역영상을 생성하고, 제2 카메라 모듈이 제1 영역의 우측으로 인접하는 제2 영역을 촬영한 제2 영역영상을 생성하고, 제3 카메라 모듈이 상기 제1 영역의 하측으로 인접하는 제3 영역을 촬영한 제3 영역영상을 생성하고, 제4 카메라 모듈이 상기 제2 영역의 하측 및 상기 제3 영역의 우측으로 인접하는 제4 영역을 촬영한 제4 영역영상을 생성하는 촬영 단계;왜곡 보정부가 상기 제1,2,3,4 영역영상을 각각 왜곡 보정하는 왜곡 보정 단계;위상차 보정부가 상기 왜곡 보정한 제1,2,3,4 영역영상을 각각 위상차 보정하는 위상차 보정 단계;중첩 보정부가 상기 위상차 보정한 제1,2,3,4 영역영상을 영역영상을 상호 인접하도록 중첩하여 보정하는 중첩 보정 단계; 및색상 보정부가 상기 중첩하여 보정한 제1,2,3,4 영역영상을 색상 보정하는 색상 보정 단계;를 포함하는 광각 영상 제공 방법.
- 청구항 4에 있어서,상기 왜곡 보정 단계는 상기 왜곡 보정부가 상기 제1,2,3,4 영역영상을 각각 광각왜곡 보정 후, 원근왜곡을 보정하고,상기 위상차 보정 단계는 상기 위상차 보정부가 상기 제1,2,3,4 영역영상의 수평 기준점을 추출 후, 좌표회전 이동을 하여 상기 제1,2,3,4 영역영상의 위치를 조절하고,상기 중첩 보정 단계는 상기 중첩 보정부가 상기 제1,2,3,4 영역영상을 각각 크기 조절 후, 좌표를 이동하여 중첩되도록 위치조절하고,상기 색상 보정 단계는 상기 색상 보정부가 상기 중첩하여 보정한 중첩영상의 밝기 및 색수차를 조절하는 광각 영상 제공 방법.
- 청구항 4에 있어서,상기 촬영 단계는,상기 제1,2,3,4 카메라 모듈이 상호간에 이루는 각도를 조절하는 단계;를 더 포함하는 광각 영상 제공 방법.
- 제1 카메라 모듈이 제1 영역을 촬영한 제1 영역영상을 생성하고, 제2 카메라 모듈이 제1 영역의 우측으로 인접하는 제2 영역을 촬영한 제2 영역영상을 생성하고, 제3 카메라 모듈이 상기 제1 영역의 반대측인 제3 영역을 촬영한 제3 영역영상을 생성하고, 제4 카메라 모듈이 상기 제2 영역의 반대측이며 상기 제3 영역의 우측으로 인접하는 제4 영역을 촬영한 제4 영역영상을 생성하는 촬영 단계;왜곡 보정부가 상기 제1,2,3,4 영역영상을 각각 왜곡 보정하는 왜곡 보정 단계;위상차 보정부가 상기 왜곡 보정한 제1,2,3,4 영역영상을 각각 위상차 보정하는 위상차 보정 단계;중첩 보정부가 상기 위상차 보정한 제1,2,3,4 영역영상을 영역영상을 상호 인접하도록 중첩하여 보정하는 중첩 보정 단계; 및색상 보정부가 상기 중첩하여 보정한 제1,2,3,4 영역영상을 색상 보정하는 색상 보정 단계;를 포함하는 광각 영상 제공 방법.
- 청구항 7에 있어서,상기 왜곡 보정 단계는 상기 왜곡 보정부가 상기 제1,2,3,4 영역영상을 각각 광각왜곡 보정 후, 원근왜곡을 보정하고,상기 위상차 보정 단계는 상기 위상차 보정부가 상기 제1,2,3,4 영역영상의 수평 기준점을 추출 후, 좌표회전 이동을 하여 상기 제1,2,3,4 영역영상의 위치를 조절하고,상기 중첩 보정 단계는 상기 중첩 보정부가 상기 제1,2,3,4 영역영상을 각각 크기 조절 후, 좌표를 이동하여 중첩되도록 위치조절하고,상기 색상 보정 단계는 상기 색상 보정부가 상기 중첩하여 보정한 중첩영상의 밝기 및 색수차를 조절하는 광각 영상 제공 방법.
- 청구항 7에 있어서,상기 촬영 단계는,상기 제1,2 카메라 모듈이 상호간에 이루는 각도를 조절하는 단계; 및상기 제3,4 카메라 모듈이 상호간에 이루는 각도를 조절하는 단계;를 더 포함하는 광각 영상 제공 방법.
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CN201980028456.XA CN112119626B (zh) | 2018-04-26 | 2019-04-26 | 广角影像提供方法 |
JP2021509710A JP7231281B2 (ja) | 2018-04-26 | 2019-04-26 | 広角映像提供方法 |
US17/050,461 US11523054B2 (en) | 2018-04-26 | 2019-04-26 | Wide-angle image providing method |
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KR1020180048328A KR102057602B1 (ko) | 2018-04-26 | 2018-04-26 | 광각 영상 제공 방법 및 시스템 |
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KR1020180048327A KR102062736B1 (ko) | 2018-04-26 | 2018-04-26 | 광각 영상 제공 방법 및 시스템 |
KR1020180048326A KR102062734B1 (ko) | 2018-04-26 | 2018-04-26 | 광각 영상 제공 방법 및 시스템 |
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JP7231281B2 (ja) * | 2018-04-26 | 2023-03-01 | テンエントゥ カンパニー,リミテッド | 広角映像提供方法 |
JP7566474B2 (ja) * | 2020-03-05 | 2024-10-15 | キヤノン株式会社 | 電子機器 |
TWI760733B (zh) * | 2020-04-27 | 2022-04-11 | 晶睿通訊股份有限公司 | 影像校正方法及其影像校正裝置 |
US11637958B2 (en) * | 2020-06-25 | 2023-04-25 | Canon Kabushiki Kaisha | Control apparatus, control method, and storage medium |
KR20220036630A (ko) * | 2020-09-16 | 2022-03-23 | 삼성전자주식회사 | 컬러 보정을 위한 영상 처리 장치, 영상 처리 방법 및 이를 포함하는 영상 처리 시스템 |
CN112969033A (zh) * | 2020-12-31 | 2021-06-15 | 清华大学苏州汽车研究院(吴江) | 一种智能座舱车内智能感知系统 |
US11849100B2 (en) * | 2021-05-31 | 2023-12-19 | Canon Kabushiki Kaisha | Information processing apparatus, control method, and non-transitory computer readable medium |
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US11523054B2 (en) | 2022-12-06 |
JP2021519954A (ja) | 2021-08-12 |
JP7185357B2 (ja) | 2022-12-07 |
US20210243368A1 (en) | 2021-08-05 |
WO2019209067A1 (ko) | 2019-10-31 |
JP7231281B2 (ja) | 2023-03-01 |
EP3787278A4 (en) | 2022-03-16 |
EP3787277A4 (en) | 2022-03-30 |
EP3787277A1 (en) | 2021-03-03 |
CN112154647A (zh) | 2020-12-29 |
CN112119626B (zh) | 2022-03-18 |
US20210243367A1 (en) | 2021-08-05 |
EP3787278A1 (en) | 2021-03-03 |
CN112154647B (zh) | 2022-03-18 |
JP2021520174A (ja) | 2021-08-12 |
CN112119626A (zh) | 2020-12-22 |
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