JP2005189021A - Imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging device capable of easily acquiring size information concerning a target object from a plane image converted to an image of the object seen from a specific direction. <P>SOLUTION: If an input of two specific points is given from a plane image displayed on an LCD 51 (S153:Yes), the number of dots between the input two points is obtained (S154) and actual length (mm) between the two points is obtained (S155) from the obtained number of dots between the two points and resolution (dpi). Then the length (mm) between the obtained actual two points is indicated over the plane image indicated on the LCD 51 (S156). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an imaging apparatus capable of easily obtaining information related to the size of a target object from a planar image obtained by converting the target object into an image viewed from a predetermined direction.

  Conventionally, by capturing a whiteboard, a book, or the like as a target object, and detecting the three-dimensional shape of the target object from the captured image, the target object, such as a whiteboard, a book, or the like is inclined with respect to the front surface. Even if an image is picked up from the position, an image pickup apparatus including a correcting unit that corrects the picked-up image as if it was picked up from the front of the target object is known. For example, Patent Document 1 discloses the correcting unit. A portable digital camera equipped with the above is disclosed. Since the target object facing the front is projected in the image corrected by the correcting means, it is possible to make it easy to see the characters and the like written on the target object.

On the other hand, when you want to know the length of a specific part of the target object, the overall size of the target object, etc. from the image captured by the digital camera, the target object is placed with a ruler or tape measure close to the target object. A method of imaging a target object in a state in which a comparison target such as a cigarette case or banknote that can relatively grasp the overall size of the target object is brought close to the target object is conceivable.
JP-A-9-289611 (FIG. 1 etc.)

  However, as described above, when the target object is imaged with a ruler, a tape measure, a cigarette case, a banknote, etc., close to the target object, and the captured image is corrected by the correcting means, the target object is particularly curved. In such a case, the image of the ruler or cigarette case taken together due to the effect of correcting the curvature is distorted, and it is difficult to grasp the length of a specific part of the target object or the overall size of the target object. There was a point.

  Also, when the distance from the imaging position to the target object is long, it is troublesome to bring the ruler etc. close to the target object, and the ruler etc. It is difficult to grasp the overall size of the target object from the perspective difference even if it is captured so that it is arranged in front of or behind.

  The present invention has been made to solve the above-described problems, and it is possible to easily obtain size information about a target object from a planar image obtained by converting the target object into an image viewed from a predetermined direction. An object is to provide an imaging device.

  In order to achieve this object, the imaging apparatus according to claim 1 calculates shape information related to a three-dimensional shape of the target object based on an imaging unit that images the target object and a captured image captured by the imaging unit. 3D shape calculation means, plane conversion means for converting the captured image into a plane image in which the target object is seen from a predetermined direction, based on the shape information calculated by the 3D shape calculation means, and the plane conversion A display means for displaying a planar image converted by the means, and at least two or more designated points designated from the planar image displayed on the display means are detected and defined by the detected designated points A distance calculating means for calculating the actual distance, and the actual distance calculated by the distance calculating means is added to the planar image displayed on the display means and displayed in a predetermined manner. And a pressure display means.

  According to the imaging apparatus of claim 1, when at least two or more designated points are designated by the user from the planar image displayed on the display means, the designated designated points are designated by the distance calculating means. Are detected, and the actual distance defined by the designated point is calculated. The actual distance is displayed by being added to the planar image displayed on the display unit by the additional display unit in a predetermined manner.

  In the imaging apparatus according to claim 2, in the imaging apparatus according to claim 1, when the distance calculation unit detects two designated points, the actual distance defined by the detected designated points is: The actual distance between the two detected points is calculated based on the number of pixels between the two points and the resolution of the planar image, and the additional display means calculates the distance between the two points calculated by the distance calculating means. The actual distance is displayed numerically.

  The image pickup apparatus according to claim 3 is the image pickup apparatus according to claim 2, wherein the additional display means displays a lead line drawn from two designated points together with an actual distance between the two points displayed numerically. indicate.

  The imaging apparatus according to claim 4, in the imaging apparatus according to claim 1, when the distance calculation unit detects two designated points, an actual distance defined by the detected designated points is used. The actual distance between the two detected points is calculated based on the number of pixels between the two points and the resolution of the planar image, and the additional display means calculates the distance between the two points calculated by the distance calculating means. Is displayed adjacent to the two points as an image having a scale corresponding to the actual distance between the two points.

  The imaging apparatus according to claim 5, in the imaging apparatus according to claim 1, when the distance calculation unit detects at least three designated points, the actual condition defined by the detected designated points. As the distance, information on the actual size of the circle passing through the detected designated point is calculated.

  The imaging apparatus according to claim 6, wherein the distance calculation unit uses the actual radius of the circle and the center of the circle in the planar image as information on the actual size of the circle. The additional display means displays the actual radius of the circle calculated by the distance calculation means as a numerical value, and displays the circle center position in a predetermined manner.

  The imaging apparatus according to claim 7, an imaging unit that images a target object, a three-dimensional shape calculation unit that calculates shape information regarding a three-dimensional shape of the target object based on a captured image captured by the imaging unit, Based on the shape information calculated by the three-dimensional shape calculation means, a plane conversion means for converting the captured image into a plane image in which the target object is seen from a predetermined direction, and a plane image converted by the plane conversion means Display means for displaying, a size calculation means for calculating the actual size of the planar image displayed on the display means, and the actual size of the planar image calculated by the size calculation means on the display means in a predetermined manner. And an additional display means for displaying in addition to the displayed planar image.

  According to the imaging apparatus of the seventh aspect, the actual size of the planar image displayed on the display unit is calculated by the size calculating unit. Then, the calculated actual size of the planar image is displayed by the additional display unit in addition to the planar image displayed on the display unit in a predetermined manner.

  The imaging apparatus according to claim 8, wherein the size calculating means calculates the actual size of the planar image from the size of the planar image and its resolution, and the additional display means. Displays the actual size of the planar image calculated by the size calculating means as a numerical value.

  The imaging device according to claim 9 is the imaging device according to claim 7, wherein the additional display means calculates the actual size of the planar image calculated by the size calculating means relative to the actual size of the planar image. It is displayed as a comparison target graphic that represents a different size.

  The imaging apparatus according to claim 10 is the imaging apparatus according to claim 9, wherein the additional display unit selects a type of the comparison target graphic or a display mode of the comparison target graphic according to an actual size of the planar image. Change and display.

  The imaging device according to claim 11 is the imaging device according to any one of claims 7 to 10, and conversion means for converting the size of the planar image into the actual size of the planar image calculated by the size calculating means. And an output means for outputting the planar image to an external device in a state converted by the conversion means.

  The imaging device according to claim 12 is the imaging device according to any one of claims 1 to 11, wherein the additional display means is calculated by the three-dimensional shape calculation means in addition to the information added to the display means. The distance from the imaging position by the imaging means to the target object is displayed numerically.

  An imaging apparatus according to a thirteenth aspect is the imaging apparatus according to any one of the first to twelfth aspects, further comprising a storage unit that stores an image in a state in which predetermined information is added by the additional display unit.

  According to the imaging apparatus of the first aspect, when at least two or more designated points are designated from the planar image displayed on the display means, the actual distance defined by the designated designated points is displayed on the display means. Since it is added to the plane image and displayed in a predetermined manner, it is necessary to designate at least two or more designated points from the plane image displayed on the display means. There is an effect that can be grasped.

  According to the imaging device of claim 2, in addition to the effect of the imaging device of claim 1, when two designated points are detected, the display means displays the actual state between the two detected points. Since the distance is displayed as a numerical value, there is an effect that the actual distance between two points can be grasped.

  According to the imaging device of the third aspect, in addition to the effect produced by the imaging device of the second aspect, the actual distance between the two points is displayed numerically on the display means, and from the two specified points. Since the drawn-out line is displayed, there is an effect that it is possible to grasp at a glance what the distance between the two points displayed numerically is.

  According to the imaging device of the fourth aspect, in addition to the effect produced by the imaging device of the first aspect, when two designated points are detected, the display means displays the actual distance between the two points. Since the image having the corresponding scale is displayed adjacent to the two points, there is an effect that the actual distance between the two points can be grasped.

  According to the imaging device of the fifth aspect, in addition to the effect produced by the imaging device of the first aspect, when at least three designated points are detected, the detected designated points are displayed on the display means. Since the information about the actual size of the passing circle is displayed numerically, there is an effect that the information about the actual size of the circle passing through the designated point can be acquired.

  According to the imaging device of the sixth aspect, in addition to the effect achieved by the imaging device according to the fifth aspect, the actual radius of the circle is displayed numerically on the display means, and the center position of the circle is a predetermined mode. Therefore, the actual radius of the circle and the center position of the circle can be grasped at a glance.

  According to the imaging device of the seventh aspect, since the actual size of the planar image is added to the planar image in a predetermined manner and displayed on the display means, the actual size of the planar image can be easily grasped. There is an effect.

  According to the imaging device of the eighth aspect, in addition to the effect produced by the imaging device according to the seventh aspect, the actual size of the planar image can be calculated from the size of the planar image and its resolution, and is calculated. Further, since the actual size of the planar image is displayed numerically on the display means, there is an effect that the actual size of the planar image can be easily grasped.

  According to the imaging device of claim 9, in addition to the effect achieved by the imaging device of claim 7, the additional display means compares the actual size of the planar image with the relative size of the actual size of the planar image. Since it is displayed as the target graphic, there is an effect that the actual size of the planar image can be relatively recognized from the comparison target graphic. For example, if a 1000 yen bill is displayed as a comparison target graphic, the actual size of the planar image can be grasped sensuously such that the actual size of the planar image is about 1000 yen bills. is there.

  According to the imaging device of the tenth aspect, in addition to the effect produced by the imaging device according to the ninth aspect, the additional display means displays the type of the comparison target graphic or the comparison target graphic according to the actual size of the planar image. Since the mode is changed and displayed, there is an effect that the actual size of the planar image can be easily grasped.

  For example, it is assumed that a 1-yen coin is set as the comparison target graphic and the actual size of the planar image is much larger than the 1-yen coin. In this case, rather than displaying only one 1-yen coin as it is, the display mode is changed and two 1-yen coins are displayed side by side, or the type of comparison target figure is 1-yen coin. If the display is changed to a larger 1,000 yen bill, the actual size of the planar image can be easily grasped.

  According to the imaging device of the eleventh aspect, in addition to the effect produced by the imaging device according to any one of the seventh to tenth aspects, the planar image converted into the actual size by the conversion unit is output to the external device by the output unit. Therefore, there is an effect that it is possible to acquire an output image of a planar image converted into the actual size.

  According to the imaging device of the twelfth aspect, in addition to the effect produced by the imaging device according to any one of the first to eleventh aspects, the distance from the imaging position to the target object is numerically displayed on the display unit. There is an effect that the distance from the imaging position to the target object can be grasped.

  According to the imaging device of the thirteenth aspect, in addition to the effect produced by the imaging device according to any one of the first to twelfth aspects, the predetermined display information is added by the additional display means stored in the storage means. There is an effect that the image can be displayed later on the display means, transmitted to a computer as an external device, or printed by a printing device.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the mechanical configuration of the imaging apparatus 1 of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1A is a perspective view of the image pickup apparatus 1, and FIG. 1B is a rear view of the image pickup apparatus 1. FIG. 2 is a schematic cross-sectional view of the imaging apparatus 1.

  The imaging device 1 functions as a so-called digital camera. In addition to imaging in a normal “normal mode”, the imaging device 1 captures an image of a document P as a subject from an oblique direction as a “corrected imaging mode”. This is an apparatus that can automatically generate an image as if it was captured from the front of the original P, and that can acquire information on the actual size of the target object from the generated image.

  As shown in FIG. 1A, the imaging device 1 is provided with a rectangular box-shaped main body case 10, an imaging lens 31 provided in front of the main body case 10, and a lower side of the imaging lens 31. A window 29, a release button 52 provided on the upper part of the main body case 10, a mode changeover switch 59, and a cancel key 56 provided on a side surface of the main body case are provided.

  Further, as shown in FIG. 1B, an LCD (Liquid Crystal Display) 51 provided on the back of the main body case 10, a length measurement mode changeover switch 57, a length measurement type changeover switch 58, a display type changeover switch 60, printing A start key 61 and a finder 53 disposed from the back surface of the main body case 10 to the front surface thereof are provided.

  As shown in FIG. 2, a CCD image sensor 32 is provided behind the imaging lens 31 (inside the imaging apparatus 1), and a slit light projecting unit 20 is provided below the imaging lens 31. Furthermore, the processor 40 and the memory card 55 are built in the main body case 10. In FIG. 2, the viewfinder 53 not connected to the processor 40 and the cancel key 56 provided on the side surface of the main body case are not shown.

  The imaging lens 31 is composed of a plurality of lenses, has an autofocus function, and automatically adjusts the focal length and aperture to form an image of light from the outside on the CCD image sensor 32.

  The CCD image sensor 32 has a configuration in which photoelectric conversion elements such as CCD (Charge Coupled Device) elements are arranged in a matrix, and generates a signal corresponding to the color and intensity of light of an image formed on the surface. This is converted into digital data and output to the processor 40. Note that data for one CCD element is pixel data of a pixel forming an image, and the image data is composed of pixel data corresponding to the number of CCD elements.

  The release button 52 is configured by a push button type switch, and is connected to the processor 40, and the processor 40 detects a pressing operation by the user.

  The mode switch 59 is configured by a slide switch or the like that can be switched between two positions. The processor 40 detects that one switch position is “normal mode” and the other switch position is “correction imaging mode”. Assigned. The “normal mode” is a mode in which the captured document P itself is used as image data, and the “corrected imaging mode” is a mode in which the document P is captured from the front when the document P is captured from an oblique direction. In this mode, the corrected image data is used.

  The memory card 55 is composed of a nonvolatile and rewritable memory, and is detachable from the main body case 10.

  The LCD 51 is configured by a liquid crystal display or the like that displays an image, and displays an image in response to an image signal from the processor 40. Then, the processor 40 sends an image signal for displaying a real-time image received by the CCD image sensor 32, an image stored in the memory card 55, characters of the setting contents of the apparatus, and the like according to the situation. Come on. The LCD 51 has a so-called touch panel function, and when the screen of the LCD 51 is pressed with a finger, a pen, or the like, the processor 40 detects the pressure and acquires coordinate data of the pressed position.

  The length measurement mode changeover switch 57 is composed of two slide switches that can be switched to two positions. One switch position is detected as “designated length measurement mode” and the other switch position is detected as “automatic length measurement mode”. Assigned by the processor 40. The “designated length measurement mode” is a mode in which the user designates a predetermined designated point from the captured image and automatically measures the actual distance defined by the designated point. The “automatic length measurement mode” In this mode, the actual size of the entire captured image is automatically measured.

  When the length measurement mode switch 57 is set to the “specified length measurement mode”, the length measurement type changeover switch 58 is an actual distance defined by a designated point designated by the user. It is a switch for setting whether to obtain an actual distance or to obtain a radius r of a circle defined by three points.

  The length measurement type changeover switch 58 is configured by a slide switch or the like that can be switched between two positions. One switch position is set to “two-point distance measurement mode” and the other switch position is set to “circle information length measurement mode”. It is assigned by the processor 40 so as to be detected. The “distance measurement mode between two points” is a mode for measuring an actual distance between two points designated as designated points. The “circle information measurement mode” is a mode for measuring three points designated as designated points. In this mode, a radius r and center coordinates of a circle passing through the circle are obtained.

  When the length measurement mode switch 57 is set to “automatic length measurement mode”, the display type changeover switch 60 is a comparison target that represents the actual size of the entire image and the relative size of the actual size of the entire image. This switch is used to set whether to display as a graphic or numerical value.

  The display type changeover switch 60 is configured by a slide switch or the like that can be switched between two positions so that one switch position is detected as a “reference image display mode” and the other switch position is detected as an “actual size display mode”. Assigned by the processor 40. The “reference image display mode” is a mode for displaying the actual size of the entire image as a comparison target graphic, and the “actual size display mode” is a mode for displaying the actual size of the entire image numerically.

  The print start key 61 is a button for outputting a process start command for transmitting image data of a captured image to an external printing apparatus. The print start key 61 is configured in the form of a push button and is connected to the processor 40, and the processor 40 detects a pressing operation by the user.

  The finder 53 is composed of an optical lens, and when the user looks in from behind the image pickup apparatus 1, a range that substantially matches the range in which the imaging lens 31 forms an image on the CCD image sensor 32 can be seen. Yes.

  The cancel key 56 is a button for outputting a cancel command when the user inputs a designated point from the image displayed on the LCD 51 and cancels in the middle of the input operation. The cancel key 56 is configured in the form of a push button and is connected to the processor 40, and the processor 40 detects a pressing operation by the user.

  Next, a specific configuration of the slit light projecting unit 20 will be described with reference to FIGS. 3 and 4. FIG. 3 is a diagram illustrating a configuration of the slit light projecting unit 20. FIG. 4 is a diagram for explaining the angular width of the slit light.

  The slit light projecting unit 20 includes a laser diode 21, a collimating lens 22, an aperture 23, a transparent flat plate 24, a cylindrical lens 25, a reflection mirror 26, and a rod lens 27.

  The laser diode 21 emits a red laser beam. Then, in accordance with a command from the processor 40, the emission and stop of the laser beam are switched. In addition, the output of the laser diode 21 can obtain a constant output (for example, 1 mW) at a location that has passed through the aperture 23 in consideration of individual variations in the spread angle of the laser beam with respect to the maximum output rating (for example, 5 mW). So that the rated output is adjusted.

  The collimating lens 22 condenses the laser beam from the laser diode 21 so as to focus on a reference distance VP (for example, 330 mm) from the slit light projecting unit 20.

  The aperture 23 is configured by a plate having a rectangular opening, and the laser beam from the collimating lens 22 is transmitted through the opening and shaped into a rectangle.

  The transparent flat plate 24 is made of a transparent flat plate such as a solid glass material, has an AR coating (non-reflective coating) on the back surface thereof, and the main body case 10 with respect to a surface orthogonal to the optical axis of the laser beam from the aperture 23. Is inclined at a predetermined angle β (for example, 33 degrees), and approximately 5% (about 50 μW) of the power of the laser beam incident from the aperture 23 is reflected on the surface to be about 95% (about 950 μW). Transparent. The direction in which the laser beam is reflected by the transparent flat plate 24 (upwardly 33 degrees with respect to the horizontal plane in front of the imaging device 1) is referred to as a second direction.

  By applying AR coating to the back surface of the transparent flat plate 24, the reflection of the laser beam incident on the transparent flat plate 24 when it is emitted from the transparent flat plate 24 is reduced, and the loss of the laser beam in the transparent flat plate 24 is reduced. ing. In addition, by setting the ratio of the laser beam reflected by the transparent flat plate 24 as a surface reflectivity of 5% determined by the refractive index of the material of the transparent flat plate 24, metal deposition is performed on the reflective surface required when realized by a normal half mirror. The process of forming the film can be omitted.

  The reflection mirror 26 is configured by a member that totally reflects the laser beam, such as a mirror, and is disposed at an angle of 45 degrees toward the front side of the main body case 10 downstream of the laser beam that has passed through the transparent flat plate 24 and totally reflects the laser beam. Change the direction of the light path by 90 degrees. The direction in which the laser beam is reflected (the direction at 0 degrees with respect to the horizontal plane in front of the imaging device 1) is referred to as a first direction.

  The rod lens 27 is formed of a cylindrical lens having a short positive focal length, and is disposed downstream of the laser beam reflected by the reflection mirror 26 so that the axial direction of the cylindrical shape is vertical. When a laser beam is incident from the reflection mirror 26, as shown in FIG. 4A, the focal length is short, so that the laser beam spreads immediately beyond the focal point and has a predetermined spread angle ε (for example, 48 degrees). Is emitted in the first direction as slit light. The slit light emitted from the rod lens 27 is referred to as first slit light 71.

  The cylindrical lens 25 is a lens having a concave shape in one direction so as to have a negative focal length, and the lens surface is orthogonal to the second direction downstream of the laser beam reflected by the transparent flat plate 24. It is arranged. The ratio of the laser beam incident from the transparent flat plate 24 to the spread angle ε of the first slit light 71 with respect to the ratio of the power obtained by dividing the laser beam by the transparent flat plate 24 as shown in FIG. It is emitted as slit light that spreads in the second direction at a spread angle κ that is equivalent (that is, 5% (2.4 degrees) of the spread angle ε). The slit light emitted from the cylindrical lens 25 is referred to as second slit light 72.

  With these components, the slit light projecting unit 20 emits a laser beam from the laser diode 21 in response to a command from the processor 40, and the first slit light 71 in the first direction and the second direction. The second slit light 72 is emitted from the window 29 provided below the imaging lens 31 of the main body case 10.

  According to the slit light projecting unit 20 configured as described above, the power of the first slit light 71 divided by the transparent flat plate 24 out of the power output from the laser diode 21 is 95%, and the second power. Although the power of the slit light 72 is as low as about 5%, when viewed in terms of power per angular width, the power per unit angle of the first slit light 71 having a spread angle of 48 degrees is about 20 μW / degree and the spread angle is 2 The power per unit angle of the second slit light 72 of 4 degrees is also about 21 μW / degree, which is almost unchanged. When the original P is a white paper at a position of 330 mm which is the reference distance VP, the illuminance by the first slit light 71 and the second slit light 72 is about 1260 lux, which is a general indoor brightness of 500. Even at a location of ˜1000 lux, there is a sufficient luminance difference between the locus of the slit light and the original P, and the locus image of the slit light can be reliably extracted by the difference extraction program 422 described later.

  Next, with reference to FIG. 5, the electrical configuration of the imaging apparatus 1 described above will be described. FIG. 5 is a block diagram illustrating an electrical configuration of the imaging apparatus 1. The processor 40 mounted on the imaging apparatus 1 includes a CPU 41, a ROM 42, and a RAM 43.

  The CPU 41 uses the RAM 43 according to the processing by the program stored in the ROM 42 to detect the pressing operation of the release button 52, fetch the image data from the CCD image sensor 32, and write the image data to the memory card 55. Various processes such as detection of the state of each switch such as the mode changeover switch 59 and the length measurement mode changeover switch 57 and slit light emission switching by the slit light projecting unit 20 are performed.

  The ROM 42 includes a camera control program 421, a difference extraction program 422, a triangulation calculation program 423, a document orientation calculation program 424, a plane conversion program 425, a two-point length measurement program 426, a circle information calculation program 427, and an actual image size calculation program. 428 and a print program 429 are stored.

  The camera control program 421 is a program related to the control of the entire imaging apparatus 1 including the processing of the flowchart shown in FIG. The difference extraction program 422 is a program for generating image data obtained by extracting the locus of the slit light from the image of the original P projected with the slit light. The triangulation calculation program 423 is a program for calculating a three-dimensional spatial position for each pixel of the locus of the slit light extracted by the difference extraction program 422.

  The document orientation calculation program 424 is a program that estimates and determines the three-dimensional shape of the document P from the three-dimensional spatial positions of the first slit light locus 71a and the second slit light locus 72a. The plane conversion program 425 is a program for converting the image data stored in the slit light no-image storage unit 432 into a plane image captured from the front of the document P given the position and orientation of the document P. is there.

  The point-to-point measuring program 426 is a program for measuring the actual distance between two designated points. The circle information calculation program 427 is a program that calculates information related to the size of a circle passing through three specified points. The image actual size calculation program 428 is a program for calculating the actual size of the entire image. The print program 429 is a program that outputs image data captured by an external printing apparatus (including image data in which an actual distance between two points, an actual size of the entire image, and the like are added to the captured image).

  The RAM 43 includes a slit light existence image storage unit 431, a slit light no image storage unit 432, a difference image storage unit 433, a triangulation calculation result storage unit 434, a plane conversion result storage unit 435, a length measurement result storage unit 436, a working area. Reference numeral 437 is assigned as a storage area.

  The slit light present image storage unit 431 and the slit light no image storage unit 432 store the image data of the slit light present image and the slit light no image from the CCD image sensor 32, respectively. The difference image storage unit 433 stores difference image data between the slit light existence image and the slit light no image. The triangulation calculation result storage unit 434 stores the result of calculating the position of each point of the slit light existence image. The document orientation calculation result storage unit 435 stores the image data converted by the plane conversion program 425.

  The length measurement result storage unit 436 stores the actual distance between two points measured by the two-point length measurement program 426 and the actual size of the circle calculated by the circle information calculation program 427. The working area 437 stores data temporarily used for calculation by the CPU 41.

  Next, with reference to FIGS. 6 and 7, the operation after the release button 52 is pressed by the user will be described with respect to the imaging apparatus 1 configured as described above. FIG. 6 is a flowchart illustrating a processing procedure in the processor 40 of the imaging apparatus 1. FIG. 7 shows an image with slit light obtained by imaging the state in which the original P is irradiated with slit light.

  First, the position of the mode switch 59 is detected to determine whether or not the position is the “corrected imaging mode” (S101). If the determination result is the “corrected imaging mode” position (S101: Yes). Then, a camera control process for acquiring a slit light existence image and a slit light no image is performed (S102).

  Specifically, the slit light projecting unit 20 is instructed to emit the laser diode 21 and the first slit light 71 and the second slit light 72 are emitted from the CCD image sensor 32 as shown in FIG. The image data of the slit light existence image in which the original P on which the first and second slit lights 71 and 72 are projected is obtained, and this image data is stored in the slit light existence image storage unit 431 of the RAM 43.

  Further, the slit light projecting unit 20 is instructed to stop the light emission of the laser diode 21, and the first and second slit lights 71 and 72 are not emitted from the CCD image sensor 32 as shown in FIG. The image data of the slit light non-image in which the original P on which the first and second slit lights 71 and 72 are not projected is captured is acquired, and the image data is stored in the slit light non-image storage unit 432.

  When the slit light existence image and the slit light no image are stored, three-dimensional measurement and plane conversion processing are performed (S103). In this process, the position L, the inclination θ, and the curvature φ (x) of the document P are obtained as the shape information of the document P, and the slit light non-image is viewed from the front in the upright direction based on the shape information. The plane image is converted into a plane image, and the plane image is stored in the plane conversion result image storage unit 436. Then, a planar image is displayed on the LCD 51 (S104), and it is determined whether or not the setting of the length measurement mode switch 57 is set to the “specified length measurement mode” (S105).

  As a result, if the “designated length measurement mode” is set (S105: Yes), designated length measurement processing is performed (S106). In this process, when a predetermined designated point is input from the image displayed on the LCD 51 by the user, the actual distance defined from the designated point is added to the image displayed on the LCD 51 in a predetermined manner. Will be displayed.

  On the other hand, when the setting of the length measurement mode switch 57 is not set to “specified length measurement mode” (S105: No), that is, when it is set to “automatic length measurement mode”, the automatic length measurement process is performed. (S107). In this processing, the actual size of the entire image is automatically calculated, and the actual size is added to the image displayed on the LCD 51 and displayed in a predetermined manner.

  In this way, when an image in which predetermined information is added to the image displayed on the LCD 51 (an image with additional information) is displayed in the designated length measurement processing (S106) or automatic length measurement processing (S107), the LCD 51 is displayed. It is determined whether or not to store the displayed image with additional information (S108).

  In this case, in this embodiment, display fields “Yes” and “No” are displayed on the LCD 51 together with a message “Do you want to save the displayed image?” If the “Yes” display field is pressed (S108: Yes), the image with additional information displayed on the LCD 51 is stored in the memory card 55 (S109). On the other hand, if the user presses the “No” display field (S108: No), the image with additional information displayed on the LCD 51 is not stored but is erased. Note that the image data stored in the slit light non-image storage unit 432 and the plane conversion result storage unit 435 is stored in the memory card 55 regardless of whether the image with additional information is stored.

  Then, it is determined whether or not the print start key 61 is pressed (S110A). If the print start key 61 is pressed (S110A: Yes), the print process (S110) is executed by the print program 429. Then, the process is terminated. If the print start key 61 is not depressed (S110A: No), the process ends without executing the print process (S110).

  In S101, if the result of detecting the position of the mode switch 59 is not the “corrected imaging mode” (S101: No), image data in the “normal mode” is acquired (S111). Specifically, the emission command to the laser diode 21 of the slit light projecting unit 20 is stopped, and the image data is received from the CCD image sensor 32 in a state where the first slit light 71 and the second slit light 72 are not emitted. The acquired image data is stored in the slit light non-image storage unit 432, the image is displayed on the LCD 51, and the processing from S105 described above is performed.

  Next, the above-described three-dimensional measurement and plane conversion processing (S103 in FIG. 6) will be described with reference to FIG. FIG. 8 is a flowchart showing three-dimensional measurement and plane conversion processing.

  In this process, first, as difference extraction processing (S801), position information of the locus 71a of the first slit light and the locus 72a of the second slit light is obtained from the image with slit light by the difference extraction program 422 shown in FIG. Specifically, first, image data of a difference between the image with slit light and the image without slit light (that is, the locus 71a of the first slit light and the locus 72a of the second slit light projected on the document P) is generated. To do. Then, in the lower half of the generated image data, for each 20 pixels in the width direction, a position having the maximum luminance level for one column of pixels in the height direction is obtained. As index light image position data, the index idx assigned numbers in the order in which the positions are obtained, the width direction position ccdx when the position is obtained, and the height direction position ccdy having the maximum luminance level are shown in FIG. Are stored in the difference image storage unit 433.

  The maximum position of the luminance level is the position of the maximum value of the approximate curve connecting the luminance levels of the pixels in the height direction. If the luminance level at the maximum position is not equal to or higher than the predetermined level, it is determined that there is no first slit light locus 71a and is not stored as slit light image position data. Then, the maximum value of the index idx is set to the extracted pixel number N, which is the total number of pixels extracted as the position information of the locus 71a of the first slit light.

  On the other hand, the positional information related to the locus 72a of the second slit light has a maximum brightness level in the height direction at the center position in the width direction in the upper half of the image data generated from the difference between the image with slit light and the image without slit light. Find the position to become. The obtained position is stored in the differential image storage unit 433 in the same format as the slit light image position data as position information of the locus 72a of the second slit light. Similar to the position information of the first slit light locus 71a, if the luminance level at the maximum position is not higher than a predetermined level, it is determined that there is no second slit light locus 72a, and the difference image storage unit 433 is reached. Is not stored.

  Next, as a triangulation calculation process (S802), for each point determined by the slit light image position data stored in the difference image storage unit 433, the triangulation calculation program 423 shown in FIG. The spatial position is obtained, and the data of the X value, Y value, and Z value that are the three-dimensional coordinate values for each index idx are stored in the triangulation calculation result storage unit 434 shown in FIG. 5 as the slit light three-dimensional position data.

  Next, as a document orientation calculation process (S803), using the slit light 3D position data stored in the triangulation calculation result storage unit 434, the document orientation calculation program 424 shown in FIG. (0, 0, L), inclination θ and curvature φ are obtained.

  Next, as plane conversion processing (S804), the plane image obtained by observing the slit light non-image stored in the slit light non-image storage unit 432 from the plane P with the plane conversion program 425 shown in FIG. The plane image is stored in the plane conversion result image storage unit 435 shown in FIG. Thus, the three-dimensional measurement and the plane conversion process (S103) are completed.

  The above-described triangulation calculation processing (S802), document orientation calculation processing (S803), and plane conversion processing (S804) are the same as the processing described in Japanese Patent Application No. 2003-326614 previously filed by the present applicant. Since it is the same, detailed description thereof is omitted.

  Next, the above-described designated length measurement process (S106 in FIG. 6) will be described in detail with reference to FIG. FIG. 9 is a flowchart showing the designated length measurement process.

  In this process, first, it is determined whether or not the length measurement type switch 58 is set to the “two-point distance length measurement mode” (S151). If the “distance measuring mode between two points” is set (S151: Yes), it is determined whether or not the cancel key 56 is pressed (S152).

  If the cancel key 56 is not pressed (S152: No), it is determined from the image displayed on the LCD 51 whether or not the user has input two designated points (S153). If two designated points are input (S153: Yes), the number of pixels (dot) between the two input points is obtained (S154), and the obtained number of pixels (dot) and resolution (dpi) between the two points are obtained. From this, the actual length (mm) between the two points is obtained (S155). That is, the actual length between two points is obtained by dividing the number of pixels (dot) between the obtained two points by the resolution (dpi) and converting the unit. In this way, the actual length (mm) between the two points is displayed so as to be superimposed on the image displayed on the LCD 51 (S156), and the process is terminated.

  If the cancel key 56 is pressed in S152 (S152: Yes), the process is terminated. If there is no input of two designated points in S153 (S153: No), the process starts from S152. The process is repeated. On the other hand, when the setting of the length measurement type selector switch 58 is not set to “two-point distance length measurement mode” in S151 (S151: No), that is, when it is set to “circle information length measurement mode”. The process proceeds to a circle information calculation process described later (S157), and the process ends.

  FIG. 10 is a diagram illustrating an image with additional information generated when the length measurement type changeover switch 58 is set to the “two-point distance length measurement mode”. In (a), the case where the length between the two points is displayed as a number is shown as a display mode for displaying the obtained length between the two points.

  For example, in the process of S104 in FIG. 6, it is assumed that the plane-converted document P is displayed on the LCD 51, and the user designates two points, point A and point B, of the displayed document P. Then, the coordinates are detected, and the points A and B are displayed on the LCD 51 as “white circles” as marks indicating the designated points. In addition, the actual length between the two points is displayed as a numerical value, and a leader line H drawn from the two points is displayed.

  In addition, as an aspect which displays the actual length between two points, it is not limited to a numerical value, and as shown in (b), an image having a scale corresponding to the actual length between two points. You may make it display so that it may become substantially parallel with the line segment which connects two points.

  Next, the circle information calculation process (S157 in FIG. 9) included in the above-described designated length measurement process (S106 in FIG. 6) will be described in detail with reference to FIG. FIG. 11 is a flowchart showing the circle information calculation process.

In this process, first, it is determined whether or not the cancel key 56 is pressed (S171). If the cancel key 56 has not been pressed (S171: No), it is determined from the image displayed on the LCD 51 whether or not the user has input three designated points (S172). If there are three designated points input (S172: Yes), the coordinates of the three points are detected, and the radius r (dot) and the center of the circle are detected as information about the circle passing through the inputted three designated points. In order to obtain the coordinates (a, b), the detected coordinates (X1, Y1), (X2, Y2), (X3, Y3) of the three points are respectively substituted into the circle equations, and the following (1) to (1) The three equations 3) are obtained (S173).
(1) (X1-a) ² + (Y1-b) ² = r ²
(2) (X2-a) ² + (Y2-b) ² = r ²
(3) (X3-a) ² + (Y3-b) ² = r ²
Then, the obtained three equations (1) to (3) are solved to obtain the radius r (dot) and the center coordinates (a, b) of the circle (S174). Next, an actual radius R (mm) is obtained from the obtained radius r (dot) and resolution (dpi) of the circle (S174A). Thus, the calculated radius R (mm) is displayed on the LCD 51 together with a leader line H connecting the center coordinates (a, b) of the circle and one of the three designated input points (S175). End the process.

  If the cancel key 56 is pressed in S171 (S171: Yes), the process is terminated. If there is no input of 3 designated points in S172 (S172: No), The processing from S171 is repeated.

  FIG. 12 is a diagram showing an image with additional information generated when the length measurement type changeover switch 58 is set to the “circle information length measurement mode”. In this embodiment, a case where a circular coin K is imaged is illustrated.

  When the coin K is imaged as the target object, the coin K is displayed on the LCD 51, and the user designates three of the displayed coins K as designated points along the circumference of the coin K. . Then, when the coordinates are detected and the radius r and the center position of the coin K defined from the three points are calculated, for example, as shown in (a), the radius r is a numerical value “14.00”. Is displayed, and the center position is displayed as a “black circle”, and one of the three specified points is displayed as a “white circle”, and it is drawn from that point and the center position. A leader line H is displayed.

  As another example, as shown in (b), the radius r is numerically displayed as “R14”, the designated three points are displayed as “white circles”, and the center position is “black painted circle”. A leader line H drawn from one of the designated points is displayed.

  Next, the above-described automatic length measurement process (S107 in FIG. 6) will be described in detail with reference to FIGS. FIG. 13 is a flowchart showing the automatic length measurement process. FIG. 14 is a diagram illustrating an image with additional information generated when the display type changeover switch 60 is set to the “reference image display mode”. FIG. 15 is a diagram illustrating an image with additional information generated when the display type changeover switch 60 is set to the “actual size display mode”.

  In this process, first, the actual size of the entire image is calculated from the image size (dot) and resolution (dpi) of the image displayed on the LCD 51 (S190). In this embodiment, the image size (dot) of the image displayed on the LCD 51 is defined by the number of pixels (dot) in the height direction and the width direction of the image. Therefore, the actual length in the high direction and the actual length in the width direction are calculated as the actual size of the entire image from the number of pixels (dot) in the height direction and the width direction and the resolution (dpi). Will be. Then, the obtained actual size of the entire image is added to the header portion of the image data (S191).

  Next, it is determined whether or not the display type changeover switch 60 is set to the “reference image display mode” (S192). If the “reference image display mode” is set (S192: Yes), it is determined whether or not the length in the height direction is 100 (mm) or less among the actual size of the entire image obtained in S191 ( S193). As a result, if the length in the height direction is 100 mm or less (S193: Yes), the resolution of the 10-yen coin as the comparison target figure T is adjusted, and the 10-yen coin image is displayed on the LCD 51. (S194), the process is terminated.

  In this case, for example, an image with additional information as shown in FIG. That is, the user can recognize that the height direction of the imaged document P is about 10 yen coins by confirming the image shown in FIG.

  On the other hand, if the length in the height direction is not 100 mm or less (S193: No), it is determined whether or not the length in the height direction is 200 mm or less (S195). As a result, if the length in the height direction is 200 mm or less (S195: Yes), the resolution of the 1000 yen bill as the comparison target figure T is adjusted, and the image of the 1000 yen bill is displayed on the LCD 51. (S196), the process is terminated.

  In this case, for example, an image with additional information as shown in FIG. 14B is displayed on the LCD 51. That is, the user can grasp that the height direction of the imaged document P is about the length of the 1000 yen bill by checking the image shown in FIG. it can.

  On the other hand, if the length in the height direction is not 200 (mm) or less (S195: No), the length in the height direction corresponds to how many times the length in the width direction of the 1000 yen bill as the reference image. It is calculated whether to do (S197). Then, the resolution of the 1000 yen bill corresponding to the integer part of the obtained value is adjusted, and the image of the 1000 yen bill is displayed so as to be superimposed on the image displayed on the LCD 51 (S200), and the processing ends. To do.

  In this case, for example, an image as shown in FIG. That is, the user confirms the image shown in FIG. 14C from the LCD 51, and the height direction of the imaged document P is the length of two 1000 yen bills arranged in the longitudinal direction. I can understand that.

  On the other hand, when the display type changeover switch 60 is not set to the “reference image display mode” in S192 (S192: No), that is, when the display type changeover switch 60 is set to the “actual size display mode”. Shows the actual size (height H, width V) of the entire image calculated in S190 and the distance VP from the imaging device 1 to the document P calculated in S803 of FIG. 8 in the image displayed on the LCD. The images are displayed in an overlapping manner (S201), and the process is terminated.

  In this case, for example, an image as shown in FIG. 15 is displayed on the LCD 51. That is, in addition to the image of the original P, in the lower right column, the actual size of the entire image is “height H: 200 (mm), width V: 400 (mm), distance VP from the image pickup apparatus 1 to the original P: 330 (mm) "is displayed. The user can grasp the outline of the size of the imaged document P by checking this field.

  Next, the printing process (S110 in FIG. 6) will be described with reference to FIG. In this process, first, reduced versions of images stored in the memory card 55 are displayed in a list format on the LCD 51 (S232). Then, it is determined whether an image to be printed is specified by the user from the displayed images (S233). The user touches an image to be printed from among the images displayed in an index form on the LCD 51, and specifies the image to be printed.

  When the image to be printed is specified (S233: Yes), it is determined whether or not the header portion of the specified image has the actual size of the entire image added in the process of S191 in FIG. 13 (S234). ). When there is an actual size of the entire image (S234: Yes), a message “Do you want to print at the actual size?” Is displayed on the LCD 51, and a display column of “Yes” and “No” is displayed. Then, it is determined whether or not the actual size printing has been selected by the user (S235).

  That is, when the display field of “Yes” is touched by the user (S235: Yes), the image data of the specified image is converted to the actual size of the entire image added to the header portion (S236). Then, the converted image data (actual size image data) is output to the external printing apparatus via the interface shown in FIG. 5 (S237), and the process ends.

  On the other hand, if the user touches the “No” display field (S235: No), the image data of the specified image is output to the external printing apparatus via the interface shown in FIG. 5 (S238), and the processing is performed. Exit.

  In S234, when the actual image size is not in the header portion of the specified image (S234: No), or when actual size printing is not selected (S235: No), the image data of the specified image is stored. The data is output to the external printing apparatus via the interface shown in FIG. 5 (S237), and the process ends.

  In the process of S233, when an image to be printed is not specified by the user (S233: No), the process ends.

  As described above, according to the imaging covering 1 of the present embodiment, when two designated points are designated from the planar image displayed on the LCD 51, the actual distance between the two points is designated on the LCD 51. Is displayed numerically or as a scale image. When three designated points are input, the radius r and center position of the circle defined by the three points are displayed. Furthermore, the actual size of the entire image is displayed as a numerical value, or a 10-yen coin or a 1000-yen bill is displayed as a comparison target figure corresponding to the actual size of the entire image. Therefore, when you want to know the actual distance between the two points of the target object and the size of the target object, the actual distance between the two points and the size of the target object can be simplified without bothering to measure the target object with a scale. Can grasp.

  In the above embodiment, the three-dimensional shape calculation means described in claim 1 corresponds to the process of S803 in the flowchart of FIG. 8, and the plane conversion means corresponds to the process of S804 in the flowchart of FIG. The display means corresponds to the process of S104 of FIG. 6, the distance calculation means corresponds to the process of S106 of the flowchart of FIG. 6, and the additional display means includes the process of S156 of FIG. 9 and S175 of FIG. This process is applicable. The size calculating means described in claim 7 corresponds to the process of S107 in the flowchart of FIG. 6, and the additional display means corresponds to the processes of S194, S196, S200 of FIG. The conversion means described in claim 11 corresponds to the process of S236 in FIG. 16, and the output means corresponds to the process of S237 in FIG.

  Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be easily made without departing from the gist of the present invention. It can be done.

  In this embodiment, when three points are input as designated points, a case has been described in which the radius r of a circle defined by the three points is calculated. d, circumference length l, circle area S, etc. may be calculated. In such a case, more detailed information on the size of the circle can be obtained.

  In this embodiment, the case where a 10-yen coin or a 1000-yen bill is displayed as the comparison target image has been described. However, the comparison target image is not limited to these images, and generally has a size. As long as it is easy to imagine, it may be a cigarette box, match box, postcard or the like.

  In the imaging apparatus of the present embodiment, the slit light projecting unit 20 is configured to emit two rows of slit light of the first slit light 71 and the second slit light 72. The light is not limited to two rows and may be configured to emit three or more rows.

  For example, in addition to the first slit light 71 and the second slit light 72, the third slit light similar to the second slit light 72 is slit so as to be projected above the second slit light 72 on the original P. If the light projecting unit 20 is configured, the longitudinal curved shape of the document P can be estimated from the position of each point of the locus of the slit light of the first to third slit lights. It is possible to correct the non-existing image to make the image easier to see.

  In this embodiment, a laser diode 21 that emits a red laser beam is used as a light source. However, any other light emitting device such as a surface emitting laser, an LED, or an EL element can be used. There may be.

Further, instead of the transparent flat plate 24, a transparent plate having a diffraction grating that diffracts a predetermined ratio of the power of the incident laser beam in a predetermined direction is formed on one surface, and the laser beam of the primary light diffracted by the diffraction grating is used. The second slit light 72 may be used as the first slit light 71 as a zero-order laser beam that is transmitted as it is.
The slit light emitted from the optical unit 20 may be a striped light pattern having a certain width in addition to the fine lines sharply narrowed in the direction orthogonal to the longitudinal direction.

  In addition, the positional relationship between the first slit light 71 and the second slit light 72 may be reversed, the second slit light 72 is placed in the first direction, that is, the lower side when viewed from the imaging device 1, and the second slit light 72 Each optical element may be disposed to form the first slit in the direction.

  The imaging device is configured to capture an image with slit light and an image without slit light using the imaging lens 31 and the CCD image sensor 32. On the other hand, in addition to the imaging lens 31 and the CCD image sensor 32, an imaging lens and a CCD image sensor for capturing an image with slit light may be additionally provided. By configuring in this way, it is possible to eliminate the passage of time (such as the time for transferring the image data of the CCD image sensor 32) between capturing the image with slit light and the image without slit light. On the other hand, there is no shift in the imaging range of the slit light non-image, and the accuracy of the three-dimensional shape of the target object to be detected can be increased. However, the imaging apparatus of the present embodiment has fewer components, and can be made smaller and less expensive.

(A) is a perspective view of an imaging device, (b) is a rear view of an imaging device. It is a schematic sectional drawing of an imaging device. It is sectional drawing which shows the structure of a slit light projection unit. It is a figure for demonstrating the angular width of slit light. It is the block diagram which showed the electrical structure of the imaging device. It is a flowchart which shows the process after pushing a relay button. It is a figure which shows a slit light existence image. It is a flowchart which shows a three-dimensional measurement and plane conversion process. It is a flowchart which shows the designated length measurement process. It is a figure which shows the image produced | generated when the setting of length measurement classification switching is set to "the distance measurement between 2 points | pieces." It is a flowchart which shows a circle information calculation process. It is a figure which shows the image produced | generated when the setting of length measurement classification switching is set to "circle information length measurement". It is a flowchart which shows an automatic length measurement process. It is a figure which shows the image produced | generated when the display classification switch is set to the reference image display. It is a figure which shows the image produced | generated when a display classification changeover switch is set to an actual size display. It is a flowchart showing a printing process.

Explanation of symbols

1 Imaging device 51 LCD (display means)
55 Memory card (storage means)

Claims (13)

Imaging means for imaging a target object;
3D shape calculation means for calculating shape information related to the 3D shape of the target object based on a captured image captured by the imaging means;
Plane conversion means for converting the captured image into a plane image in which the target object is viewed from a predetermined direction based on the shape information calculated by the three-dimensional shape calculation means;
In an imaging apparatus including a display unit that displays a plane image converted by the plane conversion unit,
Distance calculating means for detecting at least two or more specified points specified from the planar image displayed on the display means, and calculating an actual distance defined by the detected specified points;
An image pickup apparatus, comprising: an additional display unit that adds the actual distance calculated by the distance calculation unit to the planar image displayed on the display unit in a predetermined manner. When detecting the two designated points, the distance calculating means calculates the actual distance between the two detected points as the number of pixels between the two points as the actual distance defined by the detected designated points. Is calculated based on the resolution of the planar image,
The imaging apparatus according to claim 1, wherein the additional display unit displays the actual distance between the two points calculated by the distance calculation unit as a numerical value.   The imaging apparatus according to claim 2, wherein the additional display unit displays a leader line drawn from two designated points together with an actual distance between the two points displayed numerically. When detecting the two designated points, the distance calculating means calculates the actual distance between the two detected points as the number of pixels between the two points as the actual distance defined by the detected designated points. Is calculated based on the resolution of the planar image,
The additional display means displays the actual distance between the two points calculated by the distance calculating means adjacent to the two points as an image having a scale corresponding to the actual distance between the two points. The imaging apparatus according to claim 1, wherein the imaging apparatus is characterized.   When at least three designated points are detected, the distance calculating means calculates information on the actual size of a circle passing through the detected designated point as the actual distance defined by the detected designated point. The imaging apparatus according to claim 1, wherein the imaging apparatus is a device. The distance calculation means calculates the actual radius of the circle and the center position of the circle in the planar image as information on the actual size of the circle,
6. The imaging apparatus according to claim 5, wherein the additional display means displays the actual radius of the circle calculated by the distance calculation means as a numerical value and displays the center position of the circle in a predetermined manner. Imaging means for imaging a target object;
3D shape calculation means for calculating shape information related to the 3D shape of the target object based on a captured image captured by the imaging means;
Plane conversion means for converting the captured image into a plane image in which the target object is viewed from a predetermined direction based on the shape information calculated by the three-dimensional shape calculation means;
In an imaging apparatus including a display unit that displays a plane image converted by the plane conversion unit,
Size calculating means for calculating the actual size of the planar image displayed on the display means;
And an additional display means for displaying the actual size of the planar image calculated by the size calculating means in addition to the planar image displayed on the display means in a predetermined manner. . The size calculating means calculates the actual size of the planar image from the size of the planar image and its resolution,
The imaging apparatus according to claim 7, wherein the additional display unit displays the actual size of the planar image calculated by the size calculation unit as a numerical value.   The said additional display means displays the actual size of the said planar image calculated by the said size calculation means as a comparison object figure showing the relative size of the actual size of the said planar image, It is characterized by the above-mentioned. The imaging device described.   The imaging apparatus according to claim 9, wherein the additional display unit displays the type of the comparison target graphic or the display form of the comparison target graphic in accordance with the actual size of the planar image. Conversion means for converting the size of the planar image into the actual size of the planar image calculated by the size calculation means;
The imaging apparatus according to claim 7, further comprising: an output unit that outputs the planar image to an external device in a state converted by the conversion unit.   The additional display means displays, in addition to information added to the display means, a distance from the imaging position by the imaging means calculated by the three-dimensional shape calculation means to the target object as a numerical value. Item 12. The imaging device according to Item 1-11.   13. The imaging apparatus according to claim 1, further comprising a storage unit that stores an image in a state in which predetermined information is added by the additional display unit.

Images