JP4260129B2 - Compound eye photographing apparatus and adjustment method thereof - Google Patents

Description

  The present invention relates to a compound eye photographing apparatus and an adjustment method thereof.

  2. Description of the Related Art There is known a compound eye photographing apparatus in which two sets of photographing optical systems are arranged side by side at a predetermined interval and two images with parallax are photographed with a CCD image sensor or the like. From such a compound eye photographing apparatus, depth information, that is, distance information of the subject can be obtained, and based on the information, it can be used for high-accuracy image recognition in consideration of unevenness of the subject. For example, by using a compound eye imaging device with a pair of imaging optical systems on the left and right, two face images with parallax are photographed, and personal authentication is performed from these face images, thereby entering and leaving the apartment house or company. It can be used as a security device that manages the above.

  In the compound eye photographing apparatus as described above, it is necessary to accurately adjust the optical axes of the plurality of photographing optical systems. For example, when used as a security device as described above, the compound eye photographing device is adjusted so that the optical axes of the left and right photographing optical systems coincide with each other at a fixed photographing distance.

In the compound eye photographing apparatus (stereoscopic photographing apparatus) described in Patent Document 1, the deviation amount of the optical axis for each focal length is measured and stored in advance for each photographing optical system equipped with a zoom type photographing lens. When photographing, the focal length of the photographing lens is detected, and the cut-out area of the photographed image is controlled in accordance with the detected focal distance deviation, thereby obtaining an image free from optical axis deviation.
JP-A-8-317424

  By the way, in the compound eye photographing device used as the security device as described above, the optical axis of each photographing optical system is adjusted at one point of a fixed photographing distance. For example, a human face is assumed as a subject. In this case, the optical axis adjustment is performed so that the optical axes intersect at the center of both eyes as in the focus position. Therefore, the center of both eyes of the face photographed from a slight angle becomes the center of the photographing range, and an image such as a cheek or ear on the side of the face is caused by the end of the photographing range. In the worst case, these portions protrude from the shooting range, and there is a problem that personal authentication cannot be performed.

  The problem as described above similarly occurs even when the image is cut out and the optical axis shift is corrected as in Patent Document 1. Although it is conceivable to set a wide shooting range and image clipping range, there may be a problem in that extra images other than the image to be subjected to the image recognition process increase and the recognition process takes time. There arises a problem that the range where the image is cut out from the shooting range.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a compound eye photographing apparatus that can suitably fit a subject within a predetermined photographing range and an adjustment method thereof.

In order to achieve the above object, according to the first aspect of the present invention, each of the photographing optical systems is located farther from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed. The storage means for storing a predetermined clipping range centered on the position in the shooting screen corresponding to the shifted reference point and the clipping process for cutting out the image within the corresponding clipping range from the shot image were shot with each shooting optical system. And processing means for each of the photographed images.

  According to the second aspect of the present invention, the storage means stores the cutout range rotated based on the shift amount in the rotation direction of the shooting screen about the optical axis of the shooting lens.

According to a third aspect of the present invention, for each of the photographing optical systems, photographing corresponding to a reference point shifted farther from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed. A storage unit that stores the position in the screen as a cutting center, and a cutting process that cuts out an image within a cutting range determined from the corresponding cutting center stored in the storage unit with respect to a photographed image captured by the photographing optical system. And processing means for each of the photographed images obtained from the photographing optical system.

  According to a fourth aspect of the present invention, the storage means stores, for each photographing optical system, a shift amount in the rotation direction of the photographing screen about the optical axis of the photographing lens, and the image processing means includes each photographing optical system. For each of the images photographed by the system, the cutout range of the photographed image is rotated according to the corresponding shift amount stored in the storage means.

According to the fifth aspect of the present invention, a mechanism for adjusting the interval between the photographing optical systems is provided. According to the sixth aspect of the present invention, the subject to be photographed is a person's face, and the reference point is an abbreviation of the length before and after the person's face from the subject position set in advance for photographing the person's face. The distance is shifted by 1/2.

According to the seventh aspect of the present invention, each target optical system is used to photograph a target that is arranged farther from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed. The position of the target in the photographing screen is measured for each photographing optical system, and the target position or the extraction range centering on the target position is determined and set in the compound eye photographing apparatus.

According to the eighth aspect of the present invention, the shift amount in the rotation direction of the shooting screen with the optical axis of the shooting lens as the center of rotation is checked for each shooting optical system from the rotation amount of the shot target, and according to this shift amount or shift amount. The direction in which the captured image is cut out is determined and set in the compound eye photographing apparatus.

  According to the present invention, the shot image from each shooting optical system is cut out with the position in the shooting screen corresponding to the reference point shifted farther than the predetermined subject position as the center of cutting. The optical axis shift of the photographing optical system can be easily corrected, and a subject image having a depth such as a face can be appropriately within a predetermined range while reducing an extra image. In addition, since the cutout range of the photographed image is rotated in accordance with the shift amount in the rotation direction of the photographing screen with the optical axis of the photographing lens obtained in advance as the rotational center, photographing with the optical axis of the photographing lens as the rotational center Deviations in the rotation direction of the screen can be easily corrected.

  A first embodiment of the present invention will be described. The front side appearance of the compound eye photographing apparatus is shown in FIG. FIG. 2 shows the back side of the compound eye photographing apparatus with the rear cover removed. The compound eye photographing apparatus 2 includes a left optical unit 4, a right optical unit 5, various circuits and the like as a photographing optical system in a housing 3 including a front cover 3 a and a rear cover 3 b. , 5 shoot a pair of subject images with parallax. In this example, the subject to be photographed is, for example, a human face.

  The compound eye photographing apparatus 2 uses the front cover 3a as a chassis, and the left optical unit 4, the right optical unit 5, and the circuit board 6 on which various circuits are formed are assembled to the front cover 3a. A pair of openings 7 and 8 are provided on the front surface of the front cover 3a at a predetermined interval in the horizontal (left and right) direction. From one opening 7, the fixed lens 11 of the left optical unit 4 is provided and the other opening is provided. 8, the fixed lens 12 of the right optical unit 5 is exposed.

  The optical units 4 and 5 are assembled to the front cover 3a at an appropriate angle inward, that is, in a direction in which their optical axes intersect forward. As described above, when the optical units 4 and 5 are assembled inward in advance, it is possible to cope from a position close to the compound eye photographing apparatus 2 as compared with the case where the optical axes are assembled in parallel.

  As shown in FIG. 3, the left optical unit 4 includes a photographing lens 14 and an image sensor 15. The photographing lens 14 includes the above-described fixed lens 11 and the focus lens 16, and these are held in a lens barrel 17 (see FIG. 2). The focus lens 16 is movable along the optical axis PL. By moving the focus lens 16 with an adjustment mechanism (not shown), the focus lens 16 can be adjusted to focus on a subject at a desired shooting distance.

  The image sensor 15 is attached to the holding plate 18 (see FIG. 2) and assembled to the rear end of the lens barrel 17. The image sensor 15 photoelectrically converts a subject image formed by the photographing lens 14 and outputs the subject image as an image signal. The lens configuration of the taking lens 14 may be any. As the image sensor 15, a CCD image sensor, a MOS image sensor, or the like can be used.

  The image signal from the image sensor 15 is sent to the signal processing unit 19. The signal processing unit 19 includes a correlated double sampling (CDS) circuit, an amplifier, an A / D converter, and the like, and a correlated double sampling process and amplification for removing noise from an input image signal. Processing and digital conversion to convert image signals into image data. The signal processing unit 19 outputs image data of an image captured by the left optical unit 4 (hereinafter referred to as a left captured image).

  The right optical unit 5 includes a photographic lens 24 including a fixed lens 12 and a focus lens 26 movable along the optical axis PR, and an image sensor 25. Each of the lenses 12 and 26 includes a lens barrel 27 (FIG. 2). The image sensor 25 is attached to a holding plate 28 (see FIG. 2) and assembled to the rear end of the lens barrel 27. Each part of the right optical unit 5 is the same as that of the optical unit 12.

  The signal processing unit 29 processes the image signal in the same manner as the signal processing unit 19 described above, and outputs an image captured by the right optical unit 5 (hereinafter referred to as a right captured image) as image data.

  The signal processing units 19 and 29, the CPU 32, the cut-out processing unit 33, the recognition processing unit 34, the display unit 35, and the interface circuit 36 are connected to each other via the bus 31, and these units exchange data and the CPU 32. It is possible to input instructions to each unit.

  The CPU 32 controls each part of the compound eye photographing apparatus 2. A ROM 32a, a RAM 32b, and a correction memory 32c are connected to the CPU 32. A program for executing various sequences is written in the ROM 32a, and the CPU 32 controls each unit in accordance with this program. The RAM 32b is used as a work memory that temporarily stores data necessary for executing a shooting sequence or the like.

  In the correction memory 32c, a cutout range that prescribes a cutout range of the shot image for correcting the deviation of the optical axis is written in advance. The cut-out range is for the left side and for the right side, and these are determined in advance by the adjusting device 40 connected to the compound eye photographing device 2 and written in the correction memory 32c. The cutout range of the correction memory 32 c is read from the correction memory 33 by the CPU 32 and set in the cutout processing unit 33. As the correction memory 32c, for example, a flash memory which does not require a data holding operation and can rewrite data is used. In this way, it is possible to rewrite data and to reset the extraction range.

  The cut-out processing unit 33 performs cut-out processing to cut out a part of the captured image by performing digital processing on the image data input from the signal processing units 19 and 29. In this cutout process, an image in the left cutout range is cut out from the left shot image, and an image in the right cutout range is cut out from the right shot image. As a result, the cutout processing unit 33 generates a left cutout image and a right cutout image in which the optical axis shifts of the optical units 4 and 5 are corrected.

  The recognition processing unit 34 receives the cut-out image data of each cut-out image from the cut-out processing unit 33. The recognition processing unit 34 performs recognition processing of the face of the photographed subject using these cut-out image data, and determines, for example, whether or not the recognized face matches that registered in advance. The display unit 35 displays the determination result of the recognition processing unit 34.

  The interface circuit 36 is connected to an external adjustment device 40 when setting each clipping range in the compound-eye imaging device 2. The adjusting device 40 shoots an adjustment target mark, which will be described later, with each of the optical units 4 and 5, and obtains a left photographic image and a right photographic image obtained from each signal processing unit 19 and 29 via the interface circuit 36, The left and right cutout ranges are calculated by analyzing these. Then, the adjustment device 40 writes the calculated cutout ranges in the correction memory 32c via the interface circuit 36 and the CPU 30.

  As shown in FIG. 4, the optical units 4 and 5 have their optical axes PL and PR of the optical units 4 and 5 in an unadjusted state because of their accuracy of assembly, accuracy of assembly to the front cover 3a, and the like. The direction is not predetermined. 4A shows the state of each optical axis in the left and right (horizontal) direction, and FIG. 4B shows the state of each optical axis in the up and down (vertical) direction.

  When the cutout range is determined, the adjustment target mark Tg placed at the reference point is photographed by the optical units 4 and 5 with the adjustment device 40 connected to the compound eye photographing device 2. The adjustment target mark Tg is, for example, a cross-shaped mark composed of a horizontal line Tgh and a vertical line Tgv drawn on the plate member 42 as shown in FIG. Note that the adjustment target mark Tg does not have to have the above-described shape as long as the reference point is known in this example. For example, it may be a circular shape having an appropriate size.

  As shown in FIG. 4, the reference point on which the adjustment target mark Tg is arranged is the object on the central axis Lc perpendicular to the base line Lb connecting the centers of the lenses 11 and 12 of the optical units 4 and 5. The position is shifted slightly backward from the subject position Sp that is predetermined as a position to be photographed. In this way, the face image can be well balanced in the cutout range while reducing the extra background image. The distance between the reference point and the subject position Sp is preferably about half of the length before and after the subject. In this example in which the subject is a person's face, the length before and after the person's face is about 20 cm. About 10 cm.

  FIG. 6 shows the relationship between the shooting screen and the cutout range when shooting the adjustment target mark Tg. As illustrated in FIG. 6A, the adjustment device 40 sets the cross-shaped intersection of the image Tgi of the adjustment target mark Tg as the left cut-out center CL on the shooting screen 45 of the left optical unit 4. The left cut-out center CL is a position in the shooting screen 45 of the left optical unit 4 corresponding to the reference point. Then, the coordinates (ΔXL0, ΔYL0) of the left extraction center CL are calculated from the left image data with the center OL of the photographing screen 45 as the origin, and each side of the coordinates (ΔXL0, ΔYL0) and the rectangular left extraction range FL is calculated. The coordinates (XL1, YL1), (XL2, YL1), (XL2, YL2), (XL1, YL2) of the vertices of the left cutout range FL are calculated on the basis of the lengths A and B.

  On the other hand, as shown in FIG. 6 (b), the right-side cutout range has a cross-shaped intersection of the image Tgi of the adjustment target mark Tg with the center OL as the origin on the photographing screen 46 of the optical unit 5. Based on the coordinates (ΔXR0, ΔYR0) and the lengths A and B of each side of the rectangular cutout area FR, the coordinates (XR1, YR1), ( XR2, YR1), (XR2, YR2), (XR1, YR2) are calculated.

  The cut-out ranges FL and FR obtained in this way cut out a pair of images photographed using the symbols PLc and PRc in FIG. 4 as optical axes. The center of the shooting screen can be obtained from the number of lines of each shot image and the number of pixels in one line (number of image data).

  As schematically shown in FIG. 7, in the correction memory 32c, the left-side cutout range FL calculated by the adjusting device 40 as described above is calculated by the adjusting device 40 as described above, and the coordinates (XL1, YL1), (XL2, YL1), (XL2, YL2), (XL1, YL2), and the right cutout range FR is the coordinates (XR1, YR1), (XR2, YR1), (XR2, YR2) of each vertex , (XR1, YR2).

  Next, the operation of the above configuration will be described. At the time of adjustment, with the adjustment device 40 connected to the compound eye photographing device 2, the adjustment target mark Tg is arranged at a reference position shifted slightly behind the subject position Sp to be photographed by the compound eye photographing device 2, and this adjustment target The mark Tg is photographed by the optical units 4 and 5.

  Each photographed image photographed by each optical unit 4.5 is sent to the adjustment device 40 via the interface circuit 36 and analyzed. Thereby, for the compound eye photographing apparatus 2 to be adjusted, the coordinates (XL1, YL1), (XL2, YL1), (XL2, YL2), (XL1, YL2) of each vertex of the left cutout range FL, The coordinates (XR1, YR1), (XR2, YR1), (XR2, YR2), (XR1, YR2) of each vertex of the right cutout range FR are calculated, and these coordinates are obtained from the adjustment device 40 from the interface circuit 36. , Sent to the correction memory 32c via the CPU 30 and written therein.

  As described above, the compound eye photographing apparatus 2 in which each cutout range is set and adjustment is completed is installed at a predetermined location, and is used for personal authentication using a face, for example. When the power of the compound eye photographing apparatus 2 is turned on, the coordinates of the vertices of the extraction ranges FL and FR read from the correction memory 32c are set in the extraction processing unit 33.

  The person to be authenticated who receives the personal authentication adjusts the posture so that the face becomes the subject position Sp, and receives the image taken by the compound eye photographing apparatus 2. For example, when the presence of a subject at the subject position Sp is detected by a sensor (not shown) or the like, the compound eye photographing apparatus 2 drives the left optical unit 4 and the right optical unit 5 to perform photographing.

  The left-side captured image obtained by photographing with the left optical unit 4 and the right-side photographed image obtained by photographing with the right optical unit 5 are converted into image data via the signal processing units 19 and 29, respectively, and then the cut-out processing unit 33. Sent to. In the cutout processing unit 33, the left shot image is cut out by first extracting the image data in the left cutout range FL from the image data of the left shot image. Next, the right photographic image is cut out by extracting image data within the right cutout range FR from the image data of the right photographic image. As a result, the left cut-out image and the right cut-out image corrected so that the optical axes of the optical units 4 and 5 intersect at the reference point shifted backward from the subject position Sp are cut out from each captured image.

  Image data of the left cut image and right cut image cut out as described above is sent to the recognition processing unit 34. Then, the recognition processing unit 34 performs recognition processing of the face of the person to be authenticated photographed using the cut-out image data of each input cut-out image, and whether or not it matches the pre-registered one. And the determination result is displayed on the display unit 35.

  In the above-described embodiment, each cutting range is calculated by the adjustment device 40 and set in the compound eye photographing device. For example, as shown in FIG. 8, the coordinates of each cutting center are written in the correction memory 32c, and these coordinates are set. Each cutout range may be obtained by, for example, the CPU 30 of the compound eye photographing apparatus 2 based on the above.

  Next, a description will be given of a second embodiment in which the rotation around the optical axis of the imaging lens of the image sensor (imaging screen) is also corrected. In addition, except being demonstrated below, it is the same as 1st Embodiment, The same code | symbol is attached | subjected to the substantially same structural member, and the description is abbreviate | omitted.

  As shown in FIG. 9A, the adjustment device 40 analyzes the left-side photographed image obtained by photographing the adjustment target mark Tg in the photographing screen 45 with the left optical unit 4, and the image of the adjustment target mark Tg. The crossed portion of Tgi is defined as the left cut-out center CL, and the coordinates (ΔXL0, ΔYL0) of the left cut-out center CL are obtained. Further, the inclination ΔθL of the adjustment target mark Tg on the left-side photographed image, for example, the horizontal line Tgh is obtained. This inclination ΔθL is a shift amount in the rotation direction of the photographing screen of the left optical unit 4. Then, the coordinates of the vertices of the left cutout range FL, which are rectangular in length A and B around the left cutout center CL (ΔXL0, ΔYL0) and rotated by the inclination ΔθL around the left cutout center CL. (XL1, YL1), (XL2, YL2), (XL3, YL3), (XL4, YL4) are obtained.

  Similarly, as shown in FIG. 9 (b), the right-side photographed image obtained by photographing the adjustment target mark Tg with the right optical unit 5 is analyzed, and the coordinates (ΔXR0, ΔYR0) of the right cut-out center CR and the right optical unit 5 are analyzed. The inclination ΔθR of the horizontal line Tgh of the adjustment target mark Tg on the right-side photographed image, which is the amount of shift in the rotational direction of the photographing screen, is obtained. Then, the coordinates of the vertices of the right-side cutout range FR that is a rectangle of lengths A and B around the right-side cutout center CR (ΔXR0, ΔYR0) and rotated by the inclination ΔθR around the right-side cutout center CR. (XR1, YR1), (XR2, YR2), (XR3, YR3), (XR4, YR4) are obtained.

  As schematically shown in FIG. 10, the correction memory 32c has coordinates (XL1, YL1), (XL2, YL2), (XL3, YL3) indicating the vertices of the left cutout range FL obtained as described above. , (XL4, YL4) and the coordinates (XR1, YR1), (XR2, YR2), (XR3, YR3), (XR4, YR4) of each vertex of the right cutout range FR are written by the adjusting device 40.

  The cut-out processing unit 34 cuts out an image of a range surrounded by each vertex of the left-side cut-out range FL written in the correction memory 32c from the left-side shot image and outputs it as a left-side cut-out image. Similarly, the cutout processing unit 34 cuts out an image of a range surrounded by each vertex of the right cutout range FL from the right shot image and outputs it as a right cutout image. Note that when outputting each cutout image, a rotation process is performed so that the cutout image is not inclined. That is, after cropping, the left cropped image is rotated by an angle “−ΔθL”, and the right cropped image is rotated by an angle “−ΔθR”. Such rotation processing can be easily performed by writing the inclinations ΔθR and ΔθL obtained by the adjustment device 40 in the correction memory 32c.

  According to the second embodiment, even if the image sensors 15 and 25 are rotated around the optical axes PL and PR of the photographing lenses 14 and 24 and the photographing screen is shifted from the normal position, the rotation is canceled. Thus, the mechanism for rotating the image sensors 15 and 25 about the optical axes PL and PR as the rotation axes can be made unnecessary.

  In the case of correcting the rotation of the image sensor around the optical axis as described above, as shown in FIG. 11, the coordinates of the cutting centers CL and CR and the inclinations ΔθR and ΔθL are written in the correction memory 32c, and these coordinates are stored. Each cutout range may be obtained by, for example, the CPU 30 of the compound eye photographing apparatus 2 based on the above.

  In the third embodiment shown in FIG. 12, the optical units 4 and 5 are assembled to the front cover 3a so that their optical axes PL and PR are parallel to each other. Even when the optical units 4 and 5 are assembled in this way, the respective cutout ranges can be set and adjusted as in the above embodiments. Further, since the optical units 4 and 5 are attached in parallel to the front cover 3a as a chassis, there is an advantage that assembly is easy.

  In the fourth embodiment shown in FIG. 13, an adjustment mechanism for adjusting the interval between the optical units is provided in the compound eye photographing apparatus. The left optical unit 4 is attached to an attachment plate 51, and this attachment plate 51 is attached to the back side of the chassis 53. The front of the lens barrel 17 of the left optical unit 4 is inserted into an opening 54 provided in the chassis 53, and the fixed lens is exposed forward. The opening 54 is longer in the horizontal direction than the outer diameter of the lens barrel 17. Thereby, the left optical unit 4 can be moved in the horizontal direction together with the mounting plate 51. Similarly, the right optical unit 5 is attached to an attachment plate 61 attached to the rear side of the chassis 53, and its lens barrel is inserted into the opening 64, and is movable in the horizontal direction together with the attachment plate 61.

  An adjustment shaft 67 extending in the horizontal direction is rotatably attached to the lower portion of the chassis 53. The adjustment shaft 67 is a left helicoid portion 67a in which a lower portion of the left optical unit 4 forms a male helicoid on the outer periphery, and a lower portion of the right optical unit 5 is a male opposite to the left helicoid portion 67a. It is the right side helicoid part 67b which formed the helicoid. One end of the adjustment shaft 67 is integrally provided with a knob 67c for rotating the adjustment shaft 67 by an external operation.

  Further, below the chassis 53, moving members 68 and 69 are attached so as to be movable in the horizontal direction, and each of the moving members 68 and 69 is provided with a shaft hole through which the adjustment shaft 67 is passed. Female helicoids are provided on the inner peripheral surfaces of the respective shaft holes of the moving members 68 and 69. The moving member 68 is in a state where the shaft hole is screwed into the left helicoid portion 67a. The shaft hole is screwed into the right helicoid portion 67b. The mounting plate 51 is connected to the moving member 68 via the lower connecting piece 51a, and the mounting plate 61 is connected to the moving member 69 via the lower connecting piece 61a.

  With the above configuration, when the knob 67c is operated to rotate the adjustment shaft 67 in an arbitrary direction, the optical units 4, 5 attached to the attachment plates 51, 61 are moved together with the moving members 68, 69. Move horizontally. In this movement, the directions of the male helicoids of the left helicoid portion 67a and the right helicoid portion 67b are reversed from each other, so that the optical units 4 and 5 approach each other according to the rotation direction of the adjustment shaft 67, or Move away. Thereby, the interval between the optical units 4 and 5 can be adjusted, and the optical units 4 and 5 are adjusted to the optimum interval and the angle facing the subject according to the distance to the subject, the size of the subject, and the like. be able to.

  In the fourth embodiment, the optical units 4 and 5 are moved in opposite directions, but one optical unit may be fixed and only the other optical unit may be moved.

  In each of the above-described embodiments, an example of recognizing a person's face by photographing with a compound eye photographing apparatus has been described. However, the recognition target is not limited to a person's face, and can be used for a compound eye photographing apparatus for various purposes. Further, in each of the above embodiments, the adjustment device is connected to the compound eye photographing device at the time of adjustment, but the function of the adjustment device is built in the compound eye photographing device so that adjustment can be performed only by the compound eye photographing device. You can also. Further, the compound eye apparatus can be adjusted in a state in which the compound eye photographing apparatus is installed at an actual installation location by making the adjustment apparatus portable or built in as described above.

It is a perspective view which shows the front side of the compound eye imaging device which implemented this invention. It is a perspective view which shows the back side of the compound eye imaging device in the state which removed the back cover. It is a block diagram which shows the electrical structure of a compound eye imaging device. It is explanatory drawing which shows the shift | offset | difference of the optical axis of each optical unit, and the position of the adjustment target mark. An example of the shape of the adjustment target mark is shown. It is explanatory drawing which shows the relationship between an imaging | photography screen and a cutting-out range. It is explanatory drawing which shows the memory content of a correction memory. It is explanatory drawing which shows the example which memorize | stored the cutting center in the correction memory. It is explanatory drawing which shows the relationship between the imaging | photography screen and the cutting-out range in the example which correct | amends the rotation centering on the optical axis of an imaging | photography screen. It is explanatory drawing which shows the memory content of the correction memory in the example which correct | amends the rotation centering on the optical axis of an imaging | photography screen. The example which memorize | stored the shift | offset | difference of rotation centering on the optical axis of the cutting center and the imaging | photography screen in the correction memory is shown. An example in which the optical axes of the respective optical units are assembled so as to be parallel is shown. The example provided with the mechanism in which the space | interval of each optical unit is adjusted is shown.

Explanation of symbols

2 Compound eye photographing device 4, 5 Optical unit 14, 24 Image taking lens 15, 25 Image sensor 32c Correction memory 33 Cutting processing unit 40 Adjustment unit Tg Adjustment target mark CL, CR Cutting center FL, FR Cutting range

Claims (8)

In a compound eye photographing apparatus that includes a plurality of photographing optical systems each having a photographing lens and an image sensor on which a subject image is formed by the photographing lens, and each photographing optical system is arranged at a predetermined interval.
For each of the photographing optical systems, a position in the photographing screen corresponding to a reference point that is shifted from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed in advance is centered in advance. A storage means for storing the determined cutout range, and a processing means for performing a cutout process for cutting out an image in the corresponding cutout range from the shot image for each shot image taken by each shooting optical system, Compound eye photography device.   The compound eye photographing apparatus according to claim 1, wherein the storage unit stores a cutout range rotated based on a shift amount in a rotation direction of a photographing screen about the optical axis of the photographing lens. In a compound eye photographing apparatus that includes a plurality of photographing optical systems each having a photographing lens and an image sensor on which a subject image is formed by the photographing lens, and each photographing optical system is arranged at a predetermined interval.
For each of the photographic optical systems, the position in the photographic screen corresponding to the reference point shifted from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed is set as the extraction center. Captured images obtained from each photographic optical system for extracting the image within the extraction range determined from the corresponding extraction center stored in the storage means with respect to the stored storage means and the photographic image taken by the photographic optical system And a processing means for each of the above.   The storage means stores, for each photographing optical system, a shift amount in the rotation direction of the photographing screen with the optical axis of the photographing lens as the rotation center, and the image processing means each of the images photographed by each photographing optical system 4. The compound eye photographing apparatus according to claim 3, wherein the cutout range of the photographed image is rotated in accordance with a corresponding shift amount stored in the storage unit.   5. The compound eye photographing apparatus according to claim 1, further comprising a mechanism for adjusting an interval between the photographing optical systems. The subject to be photographed is a person's face, and the reference point is far from the subject position set in advance for photographing the person's face by approximately ½ of the length before and after the person's face. The compound eye photographing apparatus according to any one of claims 1 to 5, wherein the compound eye photographing apparatus is deviated. In a method for adjusting a compound eye photographing apparatus in which a plurality of photographing optical systems for photographing with a photographing lens and an image sensor are arranged at predetermined intervals,
A target, which is arranged to be distant from the predetermined subject position by approximately ½ of the length before and after the subject to be photographed, is photographed by using each of the photographing optical systems, and the position of the target in the photographing screen Is measured for each imaging optical system, and the target position or the cut-out range centered on the target position is determined and set in the compound-eye imaging apparatus. The amount of shift in the rotation direction of the shooting screen about the optical axis of the shooting lens is examined for each shooting optical system from the amount of rotation of the target that has been shot, and the amount of shift or the cut-out direction of the shot image corresponding to the amount of shift is determined. 8. The method for adjusting a compound eye photographing apparatus according to claim 7, wherein the method is determined and set in the compound eye photographing apparatus.

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