JP5230315B2 - Optical correction data registration program, optical correction data registration apparatus, and information processing apparatus - Google Patents

Description

  The present invention relates to an optical correction data registration program for registering optical correction data in an imaging apparatus such as a digital camera.

  Higher image quality is required for images output from imaging devices such as digital cameras, so that even image degradation (hereinafter referred to as optical image degradation) due to the optical characteristics of the imaging optical system is a problem. It has become to. For this reason, optical image degradation is being corrected electronically.

  In order to perform such correction with high accuracy, it is necessary to store data indicating the optical characteristics of the imaging optical system and optical correction data used for the correction in a memory in the imaging apparatus. In particular, it is necessary for a single-lens reflex digital camera to store optical correction data of a plurality of interchangeable lenses (imaging optical systems) that can be attached to the camera. Furthermore, even in the same imaging optical system, the optical characteristics change depending on optical parameters such as focal length, subject distance, and aperture value. For this reason, in order to perform correction with higher accuracy, it is necessary to store optical correction data corresponding to as many optical parameters as possible in a memory in the imaging apparatus.

In the image degradation correction method disclosed in Patent Document 1, optical correction data stored in a computer is copied and stored in a single-lens reflex digital camera (camera body) via a recording medium such as a CD-ROM.
JP 2002-199410 A

  However, new models have been released one after another as interchangeable lenses that can be attached to the camera body, and new functions have been added. For this reason, it is expected that the types of optical image degradation that can be corrected will increase. In addition, camera body models are also diversifying. Especially in entry-type models, the types of optical image degradation that can be corrected can be reduced by limiting the memory capacity and processing speed for cost reduction. There is sex.

  In the image degradation correction method disclosed in Patent Document 1, the user himself / herself has to determine which optical correction data is copied to the camera body, which is troublesome for the user. In particular, it is very inconvenient for users who own multiple types of camera bodies. Further, even if the memory capacity of the camera body is large and a large amount of optical correction data can be stored, storing even unnecessary optical correction data leads to wasteful consumption of the memory capacity.

  The present invention provides an optical correction data registration program and an optical correction data registration device that can easily store (register) only necessary optical correction data in an imaging apparatus.

An optical correction data registration program according to one aspect of the present invention operates on a computer and registers optical correction data used for correcting image deterioration caused by optical characteristics of an interchangeable lens in an imaging apparatus. The program requests the imaging device to transmit information about an interchangeable lens mounted on the imaging device and an interchangeable lens for which optical correction data has been registered, and information about the interchangeable lens from the imaging device. And a step of causing the computer to display a list of names of the interchangeable lenses based on the information of the interchangeable lenses received from the imaging device, and the optical correction data to the user on the list And selecting the registration target interchangeable lens to be registered in the computer, and the optical correction data of the registration target interchangeable lens among the optical correction data stored in the computer for each of the plurality of interchangeable lenses that can be attached to the imaging device. Having the step of transmitting and registering data corresponding to the image degradation correction function to the imaging device. And butterflies.
An information processing apparatus according to another aspect of the present invention causes an imaging apparatus to register optical correction data used to correct image deterioration caused by optical characteristics of an interchangeable lens. The apparatus includes a display unit, a storage medium that stores optical correction data, and a communication unit that communicates with the imaging apparatus. Then, the information of the interchangeable lens mounted on the imaging device and the interchangeable lens in which the optical correction data is registered in the imaging device is received from the imaging device via a communication unit, and the optical correction data is captured by the user. In order to select the registration target interchangeable lens to be registered in the apparatus, a list of the interchangeable lens names is displayed on the display unit based on the information on the interchangeable lens received from the imaging apparatus. Further, among the optical correction data stored in the storage medium for each of a plurality of interchangeable lenses that can be attached to the imaging apparatus, the image deterioration correction function of the imaging apparatus that is the optical correction data of the registration target interchangeable lens selected by the user The data corresponding to is transmitted to the imaging apparatus via the communication means and registered.

  Note that an imaging apparatus that can be connected to a computer on which the optical correction data registration program operates and has a memory that stores optical correction data received from the computer also constitutes another aspect of the present invention.

  An optical correction data registration apparatus having a computer on which the optical correction data registration program operates also constitutes another aspect of the present invention.

  According to the present invention, the necessary and appropriate optical correction data can be registered in the imaging apparatus with little awareness of the difference in the model of the imaging apparatus.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a single-lens reflex digital camera (hereinafter referred to as a camera body) 50 as an imaging apparatus to which the optical correction data registration apparatus according to the first embodiment of the present invention is applied, and an interchangeable lens 40 that can be attached to the camera body 50. The structure of is shown.

  The interchangeable lens 40 has the imaging optical system 11. The imaging optical system 11 includes a plurality of lenses such as a focus lens and a zoom lens, and a diaphragm. Various types of interchangeable lenses 40 can be attached to the camera body 50.

  The camera body 50 includes an imaging unit 10, a data processing unit 20, an output image memory 30, a data interface unit 31, a user interface unit 33, and a system control unit 34.

  The imaging unit 10 includes an imaging element 12 that photoelectrically converts a subject image formed by the imaging optical system 11 and a shutter (not shown) that controls the exposure amount of the imaging element 12. The imaging element 12 is configured by a photoelectric conversion element such as a CCD sensor or a CMOS sensor.

  The data processing unit 20 includes an AGC (auto gain controller) and A / D conversion unit 21, an image data conversion unit 22, an image deterioration correction processing unit 23, an image processing unit 24, and a compression processing unit 25.

  The system control unit 34 includes a CPU, a built-in memory, and the like. The system control unit 34 has a function of performing overall management of the camera body 50 and the interchangeable lens 40 and processing instructions. The dotted line arrows in the figure indicate the flow of processing, and the solid line arrows indicate the flow of image data. The system control unit 34 transmits optical parameters such as a zoom lens position, a focus lens position, and an aperture value of the interchangeable lens 40 via a lens control unit (not shown) in the interchangeable lens 40 (configured by a CPU, a built-in memory, and the like). It has a function to detect.

  The built-in memory of the system control unit 34 is data indicating optical characteristics such as peripheral light attenuation characteristics, distortion aberration characteristics, magnification chromatic aberration characteristics, and axial chromatic aberration characteristics of the imaging optical system 11, and is used for correction processing of optical image degradation. Optical correction data is stored (stored). Here, “optical image degradation” means image degradation caused by the optical characteristics of the imaging optical system 11. In addition, the optical image deterioration correction process is referred to as an image deterioration correction process in the following description.

  The image pickup device 12 has R, G, or B color filters arranged in a Bayer array as shown in FIG. 2 for each pixel on the light receiving surface. The exposure time and signal readout timing of the image sensor 12 are controlled by the CPU of the system control unit 34. The pixel signal read from the image sensor 12 is transferred to the data processing unit 20 according to an instruction from the CPU.

  The pixel signal transferred to the data processing unit 20 is transferred to the AGC and A / D conversion unit 21. The transferred image signal is amplified and corrected by AGC, converted into digital data by the A / D converter, and transferred to the image data converter 22. The transferred digital data is converted into digital image (gradation) data by the image data converter 22.

  The digital image data output from the image data conversion unit 22 is transferred to the image processing unit 24 with or without the image deterioration correction processing by the image deterioration correction processing unit 23. Whether or not the image deterioration correction process is to be performed depends on whether or not the camera body is set to perform the image deterioration correction process, or whether or not there is optical correction data for the imaging optical system 11 used when imaging. Selected.

  The image deterioration correction processing unit 23 corrects an optical image deterioration component in the digital image data output from the image data conversion unit 22. The optical image degradation component is corrected based on optical correction data stored in the built-in memory of the system control unit 34. The optical correction data may be any data as long as it is effective for image deterioration correction processing, such as the design value of the imaging optical system 11, aberration data, and aberration correction parameters. There are various image degradation correction processing methods, and any method may be used to perform the image degradation correction processing. The image data that has undergone the image deterioration correction process is transferred to the image processing unit 24.

  The image processing unit 24 performs image conversion processing based on a plurality of color system data such as color system conversion processing and luminance color separation processing. In general, these image conversion processes are performed on the premise that the imaging position of the subject image in each color system coincides with an arbitrary pixel position. Examples of the image conversion processing include white balance adjustment, gray balance adjustment, density adjustment, color balance adjustment, edge enhancement and the like in addition to the above-described color system conversion processing and luminance color separation processing.

  The image data that has been subjected to image processing by the image processing unit 24 is transferred to the compression processing unit 25 and compressed by a predetermined image compression processing method. Any compression method may be used. The image data compressed by the compression processing unit 25 is transferred to and stored in the output image memory 30 as output image data.

  The output image memory 30 is a recording medium that can be attached to and detached from the camera body 50, and output image data can be transferred to other information terminal devices via this recording medium. The output image memory 30 is a rewritable memory, and is constituted by a semiconductor memory, an optical disk, or the like.

  The output image data stored in the output image memory 30 can be transferred to another information terminal device via the data interface unit 31 by wired or wireless transmission.

  The image display unit 32 includes a display element such as a liquid crystal display, and can display information such as image data stored in the output image memory 30 and settings in the camera body 50. The image display unit 32 can also display a subject image as an electronic viewfinder. The user can operate the user interface unit 33 to turn on / off the image display function of the image display unit 32 and switch display information.

  Next, the operation of the optical correction data registration application (optical correction data registration program: hereinafter simply referred to as application) of the present embodiment will be described. This application runs on a personal computer and causes the personal computer to function as an optical correction data registration device.

  FIG. 3 shows a state in which the personal computer 302 and the camera body 301 corresponding to the camera body 50 shown in FIG. A plurality of interchangeable lenses 304 can be attached to the camera body 301.

  An application that can communicate with the camera body 301 is installed in the personal computer 302. The personal computer 302 stores the optical correction data described above. Since the personal computer 302 has a sufficient storage capacity, the personal computer 302 stores optical correction data corresponding to all types of interchangeable lenses 304 that can be attached to the camera body 301. The optical correction data is data that depends on the optical characteristics of the imaging optical system for each model of the interchangeable lens 304, and does not depend on the model of the camera body 301. As a method of storing optical correction data in the personal computer 302, a method of downloading via the Internet may be used, or a method of causing the personal computer to read the data from an external recording medium 302 may be used.

  The camera body 301 acquires necessary optical correction data from the personal computer 302 via the USB cable 303 connected to the data interface unit 31 shown in FIG. 1 and stores (saves) it in the built-in memory of the system control unit 34. .

  FIG. 8 shows the data structure of optical correction data stored in a storage medium (such as a hard disk) in the personal computer 302. The data structure is roughly divided into a header information area 801 for the entire optical correction data (optical correction table), and optical correction data areas 802 and 803 for each interchangeable lens (imaging optical system) that can be attached to the camera body 301. . Although FIG. 8 shows optical correction data areas 802 and 803 for the two interchangeable lenses A and B, actually, optical correction data areas for all the interchangeable lenses 304 that can be attached to the camera body 301 are provided. ing.

  The header information area 801 of the optical correction table stores table header information 804 such as the number of interchangeable lenses storing optical correction data, the amount of optical correction data for each interchangeable lens, and the data amount of each optical correction data. Is done.

  The following information is stored as lens header information 805 in the optical correction data areas 802 and 803 for each interchangeable lens. For example, interchangeable lens name (model name) information, identification information unique to the interchangeable lens (manufacturing number, etc .: hereinafter referred to as a lens ID), and focal length of the interchangeable lens (focal length at the tele end and wide end in a zoom lens) Distance), shortest imaging distance, open aperture value, and other lens performance information. The name information, the lens ID, and the lens performance information specify an interchangeable lens or are used for calculation as parameters for image deterioration correction processing.

  Further, in the optical correction data areas 802 and 803 for each interchangeable lens, all the optical correction data for each interchangeable lens (here, peripheral light amount correction data 806, distortion correction data 807, and magnification chromatic aberration correction data 808) are stored. Yes.

  The peripheral light amount correction data 806, the distortion correction data 807, and the magnification chromatic aberration correction data 808 are data for each zoom position, focus position, and aperture value, respectively.

  The peripheral light amount correction data 806 indicates the amount of decrease in incident light amount according to the distance from the optical axis to the peripheral side, and correction processing for peripheral light reduction (hereinafter referred to as peripheral light amount correction) as one of the image deterioration correction processing. Used. In the distortion correction data 807, an image corresponding to the distance from the optical axis to the peripheral side indicates the amount of distortion, and is used for distortion correction processing (hereinafter referred to as distortion correction) as one of image degradation correction processing. The lateral chromatic aberration correction data 808 indicates the amount of deviation of the R and B component imaging positions from the G component imaging position according to the distance from the optical axis to the peripheral side, and the lateral chromatic aberration as one of the image deterioration correction processes. (Hereinafter referred to as magnification chromatic aberration correction). The optical correction data may include data other than these.

  FIG. 12 shows a data structure of optical correction data stored in a built-in memory in the camera main body 301 capable of performing only peripheral light amount correction as image deterioration correction processing. In the camera body 301 that performs only peripheral light amount correction, it is not necessary to hold optical correction data (distortion aberration correction data 807 and magnification chromatic aberration correction data 808 shown in FIG. 8) other than the peripheral light amount correction data. Therefore, the data structure includes a header information area 1201 of the optical correction table and peripheral light amount correction data areas 1202 and 1203 for each interchangeable lens that can be attached to the camera body 301.

  The header information area 1201 of the optical correction table is the same as the header information area 801 of the optical correction table shown in FIG. 8 regarding the interchangeable lens registered in the camera body 301 (“registration of the interchangeable lens will be described later)”. Table header information 1204 is stored.

  In the peripheral light amount correction data areas 1202 and 1203 for each interchangeable lens, the same information as the lens header information 805 shown in FIG. 8 is stored for the interchangeable lens registered in the camera body 301. Further, peripheral light amount correction data 1206 for each interchangeable lens registered in the camera body 301 is stored in the peripheral light amount correction data regions 1202 and 1203 for each interchangeable lens.

  FIG. 12 shows the peripheral light amount correction data areas 1202 and 1203 for the two interchangeable lenses A and B. Actually, the peripheral light amount correction data areas for all the interchangeable lenses 304 that can be attached to the camera body 301 are shown. Is provided.

  Of course, if the camera body 301 can perform distortion correction and lateral chromatic aberration correction in addition to peripheral light amount correction, the data structure in the built-in memory of the camera body 301 is the same as the data structure shown in FIG. do it.

  Next, operations of applications installed in the camera main body 301 and the personal computer 302 will be described with reference to FIGS. 4, 5, 6, 7, and 13. FIG. 4 shows the flow of data communication between the camera body 301 and the application. 5 and 6 show an example of a UI (User Interface) of an application displayed on the display of the personal computer 302. FIG. The flowchart in FIG. 7 shows the flow of application processing. The flowchart in FIG. 13 shows the flow of processing in step S711 in FIG.

  The application is automatically started when the connection with the camera body 301 is confirmed, and the main menu UI shown in FIG. 5 is displayed on the display of the personal computer 302. In FIG. 5, an area 501 displays information indicating the setting or state on the connected camera body 301 side. This setting or state cannot be changed from the application side. Specifically, there are a drive mode (single shooting, continuous shooting), an imaging mode (manual, aperture priority, shutter speed priority, etc.), a remaining battery level, the number of images that can be captured, and the like.

  In an area 502, information indicating settings of the camera body 301 that can be changed from the application side is displayed. Specifically, a white balance mode, ISO sensitivity, recording image quality, photometry mode, and the like.

  An area 503 displays an imaging setting menu that enables settings mainly related to images. From this imaging setting menu, for example, a mode for outputting a color / brightness specific to a specific subject, such as “landscape mode” or “portrait mode”, or a white balance set in the area 502 is finely selected. WB correction to be adjusted can be performed. Storage (registration) of optical correction data in the camera body 301 is also performed from this imaging setting menu.

  Next, when registering optical correction data of an interchangeable lens (hereinafter referred to as a mounted lens) 304 and an arbitrary interchangeable lens (hereinafter also referred to as a registration target interchangeable lens) actually mounted on the camera body 301 through an application. The process will be described. 4, 7, and 13, “S” means “step”, and “step” is also abbreviated as “S” in the following description.

  In FIG. 7, when the user clicks the “optical correction” button from the UI area 503 shown in FIG. 5 (S701), the application checks whether or not the communication with the camera body 301 is normal (S702). .

  In the communication check, as shown in FIG. 4, the application requests initial communication to the camera body 301 (S401). Specifically, a transmission request for the name and lens ID of the mounted lens 304 and the name and lens ID of an interchangeable lens whose optical correction data has already been registered (registered) in the built-in memory of the camera body 301 is transmitted. . The model information of the camera main body 301 connected to the application may be acquired by the application at this time, or may be acquired by communication when first connected to the camera main body 301.

  Upon receiving the transmission request, the camera body 301 transmits the name and lens ID of the attached lens 304 and the name and lens ID of the interchangeable lens whose optical correction data has been registered in the built-in memory (S402). Here, the entire optical correction data structure shown in FIG. 12 may be transmitted together with the name and lens ID of the interchangeable lens in which the optical correction data has been registered.

  If the communication check is successful (S703), the application that has received the information starts preparations for starting up the optical correction data registration UI shown in FIG. In a region 602 in FIG. 6, a list showing names of interchangeable lenses for which optical correction data is stored in the personal computer 302 is displayed. If the name and lens ID of the attached lens 304 acquired from the camera body 301 in step S402 have been registered on the application side, check the check box provided in front of the name of the attached lens 304 in the area 602. A mark is entered (S704). As a result, the user can be notified that the attached lens 304 has been registered on the application side.

The application determines in optical correction data stored in the personal configuration Manipulator over data 302, whether or not contain optical correction data for mounting the lens 304 (S705). If included, it is determined whether or not the number of registered interchangeable lenses exceeds the maximum number registered in the camera body 301 (S706). If it is smaller than the maximum number of registrations, a check mark is put in the check box of the mounted lens 304 displayed in the area 602 (S707).

  If the optical correction data of the attached lens is not in the personal computer 302 or if the number of registered interchangeable lenses is greater than or equal to the maximum registration number, a warning may be displayed by a pop-up window or the like to notify the user.

  When this processing is completed, the lens registration UI (optical correction registration window) shown in FIG. 6 is displayed on the display on the personal computer 302 (S708). Thus, the user can easily know which interchangeable lens has been registered and which interchangeable lens has not been registered.

  In this embodiment, the case where a check mark is put in the check box provided in front of the lens name has been described, but it may be notified by other methods whether registration has been completed. For example, if the check box simply has a check mark, the attached lens 304 cannot be distinguished from an interchangeable lens that has already been registered but is not an attached lens. For this reason, when a check mark is put in the check box of the attached lens, a message such as “Attached Lens A has been added” is displayed in the area 603, or the attached lens displayed in the area 602 is displayed. For example, the color of the name 304 may be changed.

  In S702, if the application cannot acquire the name and lens ID of the attached lens 304, the process proceeds to S713 as it is, and the process ends.

  The check box of each interchangeable lens displayed in the area 602 can be manually checked by the user selecting it with a mouse or the like (S709). That is, in addition to the attached lens 304, the user selects an arbitrary interchangeable lens that the user wants to newly register, and puts a check mark in the check box.

  At this time, the user must select the name of the interchangeable lens to be checked from the lens name list in the area 602. Generally, there are about several tens to hundreds of interchangeable lenses that can be attached to one camera body 301, and it is troublesome for a user to search for a target interchangeable lens. For this reason, in this embodiment, selection buttons such as “super wide angle / wide angle”, “standard / medium telephoto”, “telephoto”, “macro”, “zoom”, “APS-C sensor dedicated lens” are displayed in the region 601. Is provided. When the user clicks one of the selection buttons, only the name of the type of interchangeable lens corresponding to the selection button is displayed in the area 602. As a result, the user can efficiently search for the target interchangeable lens.

  In addition, when “display only selected lens” shown in area 604 is clicked, only the name of the interchangeable lens whose checkbox is checked in area 602 is displayed in area 602. Thereby, the user can confirm the interchangeable lenses registered (or registered) as a list.

  The area 603 displays the maximum number of registrations and the number of interchangeable lenses currently registered, and informs the user how many interchangeable lenses can be registered.

  When there is a restriction on the image deterioration correction function of the interchangeable lens with a check mark in the check box, a warning indicating that may be displayed when the check mark is put. For example, an interchangeable lens with a check mark in the check box may not have a function of transmitting subject distance information to the camera body.

  In general, focal length information and aperture value are transmitted from the interchangeable lens side to the camera body, but subject distance information that is not subject to fluctuations in the imaging optical system is not transmitted to the camera body. There are many. In such an interchangeable lens, there is a possibility that image deterioration correction is not appropriately performed as compared with an interchangeable lens having a function of transmitting subject distance information to the camera body. The user cannot determine from a lens name alone whether a certain interchangeable lens has a function of transmitting subject distance information to the camera body. For this reason, when a check mark is entered in the check box, the user is warned to that effect, so that the user can use the image deterioration correction function after recognizing the risk.

  Information regarding whether or not the lens is an interchangeable lens having a function of transmitting subject distance information to the camera body can be included in header information 805 for each lens in the data structure shown in FIG.

  Furthermore, as an example of the case where it is better to display the warning as described above, it is necessary to warn about an interchangeable lens having optical characteristics that cannot be subjected to image deterioration correction. For example, with a fish-eye lens, a very large correction must be performed in distortion correction, and it is difficult to perform distortion correction considering the system load. On the other hand, the peripheral light amount correction and the magnification aberration correction can be performed without imposing much load on the system like other interchangeable lenses. For such an interchangeable lens, the user should be notified that distortion is not possible when the check box is checked.

  Thus, when the user finishes putting a check mark in the check box of the interchangeable lens to be newly registered, the user clicks the “OK” button in the area 605 (S710). At this time, the application changes the format of the optical correction data so as to correspond to the model of the registered camera body 301 (S711).

  This process will be described with reference to FIG. First, when the “OK” button in the area 605 is clicked (S1301), the application selects the model of the camera body 301 connected to the personal computer 302 based on the information of the camera body 301 acquired in advance. It is determined (S1302). Here, as an example, it is assumed that the camera body has three models (Type1, Type2, and Type3).

  Type 1 is a model that can perform only correction A (for example, peripheral light amount correction). Type 2 is a model that can perform only correction A and correction B (for example, peripheral light amount correction and distortion aberration correction). Type 3 is a model that can perform correction A, correction B, and correction C (peripheral light amount correction, distortion aberration correction, and magnification chromatic aberration correction).

  Here, a case where it is determined that the camera body 301 connected to the personal computer 302 is Type 1 will be described. In this case, the application performs the following processing. The application extracts only the optical correction data (peripheral light amount correction data) necessary for Type 1 from the optical correction data of the interchangeable lens registered this time from all the optical correction data stored in the personal computer 302 (FIG. 8). (S1303). Then, the optical correction data is converted into a format for storing in the Type 1. An example of the optical correction data structure after the format conversion is as shown in FIG.

  When format conversion ends, the application transmits the converted optical correction data to the camera body 301 (S1306, S712, S405). The camera body 301 that has received the optical correction data transmits a registration completion notification to the application (S406). In this way, registration of the optical correction data of the registration target interchangeable lens from the application to the camera body 301 is completed.

  Similar processing is performed when the camera body 301 connected to the personal computer 302 is Type 2 or Type 3.

  According to this embodiment, the user can efficiently register the optical correction data of the registration target interchangeable lens in the camera body. The camera body does not need to hold unnecessary optical correction data and can efficiently use the memory capacity.

  Next, a second embodiment of the present invention will be described. In the present embodiment, a case where the optical correction data structure stored in the built-in memory of the camera body 301 is different from the optical correction data structure stored in the storage medium in the personal computer 302 will be described. Applications installed in the camera body 301 and the personal computer 302 are basically the same as those in the first embodiment.

  As in the first embodiment, when the optical correction data structure stored in the built-in memory of the camera body 301 and the optical correction data structure stored in the storage medium in the personal computer 302 are common, the following problem occurs. There is a fear.

  When managing optical correction data by lens ID, the user determines and registers an interchangeable lens for which optical correction data is to be registered from the lens name, as shown in a region 602 in FIG. In this case, there is no problem as long as the lens ID and the lens name have a one-to-one correspondence.

  However, a plurality of lens IDs may be assigned to one lens name. For example, if the firmware in an interchangeable lens is changed during the production of an interchangeable lens with the same name, even if the interchangeable lens has the same name, the product using the old firmware is separated from the product using the new firmware. There is a need to. For this reason, different lens IDs are assigned to these interchangeable lenses.

  In such an interchangeable lens, the name and the imaging optical system are the same, but there are a plurality of lens IDs. Naturally, the user does not know which name of the interchangeable lens ID is duplicated. Therefore, if the optical correction data structure is common between the camera body 301 side and the application side, when the user selects one of such interchangeable lenses from the lens name, it is displayed in the area 603 of FIG. This will increase the number of registered interchangeable lenses. This can be confusing to the user. In addition, even if the maximum number of registrations is determined, the number of interchangeable lenses cannot actually be registered.

  A method for solving such a problem will be described with reference to FIGS. FIG. 9 shows the structure of optical correction data stored in the built-in memory in the camera body 301 of this embodiment. The difference from the optical correction data structure shown in FIG. 8 is that a correction data reference table area 904 is added between the header information area 901 and the lens header information area 902 of the optical correction table.

  The correction data reference table area 904 will be described with reference to FIG. This area 904 is roughly divided into two areas. One is an area 1001 to 1003 in which lens IDs are stored, and the other is an area 1004 to 100 in which offset data 1 to 3 corresponding to each of the lens IDs stored in the areas 1001 to 1003 is stored. 1006. The offset data indicates an offset value up to an address where optical correction data of the corresponding lens ID is stored. The number of combinations of lens ID and offset data is set to be larger than the maximum number of registered interchangeable lenses.

  Processing for registering optical correction data of the interchangeable lens to be registered in the camera body 301 from the application in this embodiment will be described with reference to FIG. First, the user selects an interchangeable lens to be registered in the same manner as in the first embodiment, and clicks an “OK” button in an area 605 shown in FIG. 6 (S1101). Thereby, the application performs the following processing before transmitting the optical correction data to the camera body 301.

  First, all lens names whose check boxes are checked are acquired (S1102). If there is no interchangeable lens with a check mark in the check box, a table with empty optical correction data is transmitted to the camera body 301 (corresponding to S405 in FIG. 4). If there are registered interchangeable lenses, seek the registered interchangeable lenses one by one.

  Then, it is determined whether or not there are a plurality of lens IDs for the first interchangeable lens to be registered (S1103). When there is no plurality of lens IDs (when there is only one lens ID), the lens ID is stored in the area 1001 shown in FIG. 10 (S1105). Further, offset data (offset value) up to the address where the optical correction data corresponding to the lens ID is stored is stored in the area 1004.

  On the other hand, a case where there are a plurality of lens IDs will be described. Here, a case where two lens IDs exist for one lens name will be described. At this time, one of the two lens IDs is stored in the area 1001 of FIG. 10 (S1104). Further, the offset value up to the address where the optical correction data corresponding to the lens ID is stored is stored in the area 1004.

  Further, the other one of the two lens IDs is stored in the area 1002 of FIG. Further, the same offset value as the offset value stored in the area 1004 is stored in the area 1005 as the offset value up to the address where the optical correction data corresponding to the lens ID is stored.

  As a result, even if the lens IDs are different, the optical correction data can be shared because they are the same imaging optical system.

  As described above, by providing the correction data reference table area 904, it is not necessary to hold the optical correction data redundantly for the interchangeable lens having the same name having a plurality of lens IDs, and the user can also determine the maximum number of registrations. No need to worry.

  The above operation is repeated for all the registration target interchangeable lenses (S1106). When the processing for all the interchangeable lenses is completed, the application converts the optical correction data of these interchangeable lenses into the data structure shown in FIG. 12 or FIG. 8 and transmits it to the camera body 301 (S404). This data structure conversion may be performed after determining the model of the camera body 301 and converting the format of the optical correction data as described with reference to FIG. 13, or may be performed simultaneously with the format conversion.

  The subsequent processing is the same as in the first embodiment.

  Each embodiment described above is only a representative example, and various modifications and changes can be made to each embodiment in carrying out the present invention.

  For example, in the above embodiment, the case where the optical correction data registration program is operated on the personal computer to register the optical correction data in the imaging apparatus has been described. However, the optical correction data registration program may be operated on a computer mounted on a device other than a personal computer (for example, a portable information terminal device). That is, the optical correction data registration device according to the present invention includes devices other than personal computers.

1 is a block diagram showing a configuration of a single-lens reflex digital camera in which optical correction data is registered by an optical correction data registration program (application) that is Embodiment 1 of the present invention. FIG. The figure which shows the arrangement | sequence of the color filter in the image pick-up element of the said camera. FIG. 3 is a diagram illustrating an example of connection between the camera and a personal computer on which an application according to the first exemplary embodiment operates. FIG. 3 is a diagram illustrating communication processing between the camera and the application of the first embodiment. FIG. 3 is a diagram illustrating a main menu UI displayed on the personal computer by the application according to the first embodiment. 6 is a diagram illustrating an optical correction data registration UI displayed on a personal computer by the application of Embodiment 1. FIG. 6 is a flowchart showing a flow of operation of an application according to the first embodiment. FIG. 3 is a diagram illustrating a structure of optical correction data stored in a computer in the first embodiment. The figure which shows the structure of the optical correction data memorize | stored in the computer in Example 2 of this invention. FIG. 6 is a diagram illustrating a structure of optical correction data stored in a camera according to a second embodiment. 10 is a flowchart showing a flow of operation of an application according to the second embodiment. FIG. 3 is a diagram illustrating a structure of optical correction data in a camera that only supports peripheral light amount correction in the first embodiment. 8 is a flowchart showing processing in step S711 of FIG.

Explanation of symbols

11 Imaging optical system 40, 304 Interchangeable lens 50, 301 Camera body (single-lens reflex digital camera)
302 Personal computer 303 USB cable

Claims (4)

An optical correction data registration program that operates on a computer and registers optical correction data used to correct image degradation caused by optical characteristics of an interchangeable lens in an imaging device,
Requesting the imaging device to transmit information of an interchangeable lens mounted on the imaging device and information on the interchangeable lens in which the optical correction data has been registered to the imaging device;
Transmitting information of the interchangeable lens from the imaging device to the computer;
Displaying a list of names of the interchangeable lenses on the computer based on the information of the interchangeable lenses received from the imaging device;
On the list, allowing the user to select a registration target interchangeable lens for registering the optical correction data in the imaging device;
Of the optical correction data stored in the computer for each of a plurality of interchangeable lenses that can be attached to the imaging apparatus, the optical correction data of the registration target interchangeable lens, and corresponding to the image deterioration correction function of the imaging apparatus And a step of transmitting data to the imaging apparatus to register the data.   In the step of transmitting and registering the optical correction data to the imaging apparatus, when a plurality of registration target interchangeable lenses have the same name and the different information, they are common to the plurality of registration target interchangeable lenses. The optical correction data registration program according to claim 1, wherein the optical correction data is transmitted to the imaging apparatus.   An optical correction data registration apparatus comprising a computer on which the optical correction data registration program according to claim 1 or 2 operates. An information processing apparatus that causes an imaging device to register optical correction data used to correct image degradation caused by optical characteristics of an interchangeable lens,
Display means;
A storage medium for storing the optical correction data;
Communication means for communicating with the imaging device;
From the imaging device, the interchangeable lens attached to the imaging device and the information of the interchangeable lens in which the optical correction data has been registered in the imaging device are received via the communication unit,
In order to allow the user to select a registration target interchangeable lens for registering the optical correction data in the imaging device, a list of names of the interchangeable lenses is displayed on the display unit based on the information on the interchangeable lens received from the imaging device. Display the table,
Of the optical correction data stored in the storage medium for each of a plurality of interchangeable lenses that can be attached to the imaging apparatus, the optical correction data of the registration target interchangeable lens selected by the user, and the image included in the imaging apparatus An information processing apparatus that transmits and registers data corresponding to a deterioration correction function to the imaging apparatus via the communication unit.