Evaluation device, evaluation method, and program

Abstract

To provide an evaluation device capable of evaluating a blur correction performance of an imaging apparatus based on a determination of whether or not an inputted oscillation waveform is different from a vibration waveform of the actually oscillated imaging apparatus.SOLUTION: An image evaluation device comprises: an imaging apparatus including a blur correction function; an oscillation control section which oscillates the imaging apparatus based on an input waveform; a vibration detection section which detects vibration of the imaging apparatus; comparison means which compares the input waveform to a waveform of a vibration detection result detected by the vibration detection section; and imaging evaluation means for performing an imaging evaluation which is an evaluation of the blur correction function based on an imaging result of a subject by the imaging apparatus. In a case where it is determined by the comparison means that a differential of the waveform of the vibration detection result with respect to the input waveform is within a predetermined range, the imaging evaluation means performs the imaging evaluation.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an evaluation device for an image captured by an imaging device, and more particularly to an evaluation device, an evaluation method, and a program for evaluating an image captured by vibrating the imaging device. [Background technology]

[0002] In relation to an evaluation device for the shake correction effect or shake correction performance of an imaging device, Patent Document 1 discloses a method for generating a vibration waveform to be input to a vibration table in an image evaluation device that uses a vibration table to vibrate an imaging device having a shake correction function. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5041094 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the conventional technology disclosed in Patent Document 1, the vibration waveform input to the vibration table and the actual vibration state of the imaging device may differ depending on the size of the lens of the imaging device, the fixing method and mounting position of the imaging device, etc. Therefore, even though the vibration waveform input to the vibration table and the vibration waveform of the imaging device that is actually vibrated are different, there is a risk that the image stabilization performance of the imaging device may be evaluated without determining that the vibration waveforms are different.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide an evaluation device that can evaluate the image stabilization performance of an imaging device based on a determination of whether an input vibration waveform differs from the vibration waveform actually applied to the imaging device. [Means for solving the problem]

[0006] An image evaluation device according to an embodiment of the present invention includes: For vibrating an imaging device with a vibration correction function Input waveform and Detecting vibrations of the imaging device The imaging device has a comparison means for comparing a waveform of a vibration detection result detected by a vibration detection unit with the waveform of a vibration detection result, and an imaging evaluation means for performing an imaging evaluation, which is an evaluation of the shake correction function based on the imaging result of the subject by the imaging device, and the imaging evaluation means performs the imaging evaluation when the comparison means determines that the vibration detection result for the input waveform is within a predetermined range. If it is determined that the vibration detection result is outside a predetermined range, the image stabilization function is evaluated using an evaluation method different from the imaging evaluation method. It is characterized by: [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an evaluation device that can evaluate the image stabilization performance of an imaging device based on a determination of whether an input vibration waveform differs from the vibration waveform actually applied to the imaging device. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of an image evaluation device according to a first embodiment. [Figure 2] 4 is a flowchart showing the process from excitation of the vibration table to imaging evaluation in the first embodiment. [Figure 3] 2 is a diagram showing a holding method of the imaging device using a connecting member different from the holding method in FIG. 1; [Figure 4] FIG. 10 is a schematic diagram of an image evaluation device according to a second embodiment. [Figure 5] 10 is a flowchart showing the process from excitation of the vibration table to imaging evaluation in the second embodiment. [Figure 6] 11 is a flowchart showing the process from excitation of the vibration table to imaging evaluation in the third embodiment. [Figure 7] 2 is a diagram showing a holding method of the imaging device using a connecting member different from the holding method in FIG. 1; [Figure 8] FIG. 10 is a schematic diagram of an image evaluation device according to a fourth embodiment. [Figure 9] 10 is a flowchart showing the process from excitation of the vibration table to imaging evaluation in the fourth embodiment. [Figure 10]13 is a flowchart showing the process from excitation of the vibration table to imaging evaluation in the fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings, etc. However, the following embodiments do not limit the invention according to the claims, and not all of the features described in the following embodiments are necessarily essential to the present invention.

[0010] FIG. 1 is a schematic diagram of an image evaluation device 100 in a first embodiment. For ease of explanation, as shown in the image evaluation device 100 in FIG. 1, an X-axis, a Y-axis, and a Z-axis that are orthogonal to each other are defined for the imaging device 1. The Z-axis is an axis parallel to the optical axis 1Ax of the imaging lens 1L and is an axis that is approximately orthogonal to the light receiving surface (imaging surface) of an imaging element (not shown) provided in the imaging device 1. The X-axis is an axis that is orthogonal to the Z-axis in a horizontal plane when the Z-axis is parallel to the horizontal direction. The Y-axis is an axis that is parallel to the vertical direction when the Z-axis is parallel to the horizontal direction.

[0011] (First embodiment) A first embodiment of the present invention will be described. FIG. 1 is a schematic diagram of an image evaluation device 100 in the first embodiment. The imaging device 1 is an imaging device such as a camera, and has a shake correction function (not shown) built into the imaging device 1. The shake correction function detects shake of the imaging device using, for example, an angular velocity sensor, and drives a shake correction means such as a correction lens based on the detected shake, thereby preventing blur from occurring in the captured image. The imaging device 1 is held by a vibration table 2, which vibrates the imaging device 1, via a connecting member 2J.

[0012] The vibration table 2 has a pitching stage 2P that rotates and vibrates the imaging device 1 about the X axis, a yawing stage 2Y that rotates and vibrates the imaging device 1 about the Y axis, and a connecting member 2J that connects the yawing stage 2Y to the imaging device 1. Although not shown in Fig. 1, it may have a roll stage that rotates and vibrates about the optical axis 1Ax (about the Z axis), or a translation stage that translates and vibrates about each of the X axis, Y axis, and Z axis.

[0013] The vibration waveform 3 is waveform data that determines the amount of drive over time when the vibration table 2 vibrates the imaging device 1. The vibration waveform 3 is input to the vibration table control device 4. In this embodiment, the vibration waveform 3 is an example of an input waveform, and the vibration table control device 4 is an example of a vibration table control unit. As a result, the vibration table control device 4 vibrates the vibration table 2 based on the vibration waveform 3. In this embodiment, the vibration table 2 and the vibration table control device 4 are an example of a configuration included in a vibration control unit that vibrates the imaging device 1 based on the input waveform.

[0014] The vibration detection unit 5 detects vibrations of the imaging device 1 excited by the vibration table 2. The vibration detection unit 5 has detection axes capable of detecting vibrations corresponding to the vibration axes of the vibration table 2. The vibration detection unit 5 is held by the imaging device 1. Specific holding methods include, for example, using an adhesive material such as double-sided tape (not shown) or a connecting material such as a screw. The vibration detection unit 5 may be a detection means that detects vibrations of the imaging device 1 in a non-contact manner using a laser displacement meter or the like. In addition, although the vibration detection unit 5 is a vibration detection member disposed outside the imaging device 1 in this embodiment, the present invention is not limited thereto and may also be a vibration detection member disposed inside the imaging device 1. Furthermore, the vibration detection unit 5 may detect vibrations based on a motion vector obtained from an image captured by the imaging device 1.

[0015] The vibration detection position of the imaging device 1 by the vibration detection unit 5 is preferably set to a position farther away from the position where the imaging device 1 is held on the vibration table 2. This allows the vibration detection unit 5 to more effectively detect the vibration of the imaging device 1. For example, as shown in FIG. 1, it is preferable to detect the vibration at the tip of the imaging lens 1L.

[0016] The comparison unit 6 compares the excitation waveform 3 with the vibration detection result detected by the vibration detection unit 5. The comparison unit 6 determines from the comparison result whether the vibration detection result for the excitation waveform 3 is within a predetermined range. The comparison unit 6 transmits the determination result to the imaging evaluation unit 7 or the display unit 8. In this embodiment, the comparison unit 6 is an example of a comparison means that compares the input waveform with the waveform of the vibration detection result detected by the vibration detection unit 5.

[0017] If the vibration detection result is within a predetermined range, the imaging evaluation unit 7 issues a command to the imaging device 1 to capture an image of the subject 10. The imaging evaluation unit 7 receives the captured image from the imaging device 1 and evaluates the captured image. In this embodiment, the imaging evaluation unit 7 is an example of an imaging evaluation means that performs imaging evaluation, which is an evaluation of the image stabilization function based on the image capture result of the imaging device 1.

[0018] The display unit 8 displays the vibration detection result. For example, if the vibration detection result is outside a predetermined range, it displays that the vibration detection result is outside the predetermined range. However, the display content of the display unit 8 is not limited to this.

[0019] The arithmetic unit 9 stores the excitation waveform 3. The arithmetic unit 9 also includes a comparison unit 6, an image evaluation unit 7, and a display unit 8, and controls the entire image evaluation device 100, including the vibration table control device 4. The subject 10 is preferably a chart suitable for image evaluation. The arithmetic unit 9 has, as hardware, at least a CPU that performs calculations related to the control of each unit, a ROM in which programs are recorded, and RAM that is used as a temporary area such as the CPU's main memory or work area. CPU stands for Central Processing Unit, ROM stands for ROM, and RAM stands for Random Access Memory.

[0020] 2 is a flowchart showing the process from vibration of the vibration table 2 to imaging evaluation in the first embodiment. The process shown in the flowchart below is performed by the CPU of the arithmetic device 9.

[0021] In step S101, the vibration waveform 3 stored in the arithmetic unit 9 is input to the vibration table control unit 4.

[0022] In step 102, the vibration table 2 is driven based on the vibration waveform 3. As a result, the imaging device 1 to be measured, which is held on the vibration table 2, is vibrated.

[0023] In step S103, the vibration of the imaging device 1 applied in step S102 is detected by the vibration detection unit 5.

[0024] In step S104, the vibration detection result detected by the vibration detection unit 5 is sent to the comparison unit 6, where the excitation waveform 3 is compared with the vibration detection result.

[0025] In step S105, the comparison unit 6 determines whether the vibration detection result is within a predetermined range for the excitation waveform 3. Here, whether the vibration detection result is within the predetermined range may be determined, for example, by comparing each frequency component of the vibration detection result with each frequency component included in the excitation waveform 3, or by comparing the excitation waveform 3 and the vibration detection result in time series. If it is determined in step S105 that the vibration detection result is within the predetermined range, the process proceeds to step S106. If it is determined in step S105 that the vibration detection result is not within the predetermined range, the process proceeds to step S108.

[0026] In step S106, when it is determined that the vibration detection result is within a predetermined range, the imaging evaluation unit 7 issues a command to the imaging device 1 to capture images of the subject 10 multiple times. The imaging device 1 captures images of the subject 10 while being vibrated by the vibration table 2. As a result, a captured image is generated.

[0027] In step S107, the imaging evaluation unit 7 performs imaging evaluation of the captured images. The imaging evaluation is an evaluation of the shake correction function based on the captured images. For example, the imaging evaluation is performed by measuring the blur width of a predetermined portion (e.g., an edge portion) in each captured image in which blur has been corrected by the shake correction function of the imaging device 1. The imaging evaluation unit 7 calculates the amount of blur based on the blur width. Thereafter, the processing ends. Thus, in step S107, the imaging evaluation unit 7 performs imaging evaluation if the comparison unit 6 determines in step S105 that the vibration detection result is within a predetermined range.

[0028] In step S108, the display unit 8 displays that the vibration detection result of the imaging device 1 is outside a predetermined range. For example, the display unit 8 may be an indicator light or a display device (not shown) provided in the computing device 9.

[0029] After step S108, the process ends. If the comparison unit 6 determines that the vibration detection result is outside the predetermined range, it may change the holding method of the imaging device 1 and then determine again whether the vibration detection result is within the predetermined range. By changing the holding method of the imaging device 1, it becomes possible to change the control state regarding vibration of the vibration table control device 4.

[0030] Here, a specific holding method to be changed is, for example, a holding method of the imaging device 1 using a connecting member 2Ja shown in FIG. 3. FIG. 3 is a diagram showing a holding method of the imaging device 1 using a connecting member 2Ja that is different from the holding method in FIG. 1. The connecting member 2J in FIG. 1 holds the imaging device 1 at one location on the imaging device main body 1B and connects the imaging device 1 to the vibration table 2. However, as with the connecting member 2Ja shown in FIG. 3, particularly when the imaging lens 1L is long, a configuration may be adopted in which the imaging device main body 1B and the imaging lens 1L are connected at two locations using the connecting member 2J, and the vibration table 2 holds the imaging device 1 at two locations. Note that because the connecting member 2J is an integrated member, the connecting member 2J that holds the imaging device 1 at two locations is the same member.

[0031] Furthermore, the position at which the imaging device 1 is held relative to the vibration table 2 may be changed using the connecting member 2Ja. That is, the connecting member 2Ja is provided with a plurality of connection parts (for example, holes for screw connection) (not shown) for connecting to the vibration table 2. Therefore, by changing the position of the connection parts for connecting to the vibration table 2, it becomes possible to change the holding position. Therefore, the connecting member 2Ja makes it possible to stably hold the imaging device 1 at a plurality of positions. Furthermore, by changing the connection position, it becomes possible to change the position of the center of gravity of the imaging device 1 to a position that is allowed by the vibration table 2.

[0032] According to this embodiment, the possibility of imaging evaluation (evaluation of the shake correction performance of the imaging device 1) is determined based on the comparison result between the excitation waveform 3 and the vibration detection result of the imaging device 1. Therefore, it is possible to provide an image evaluation device 100 that can evaluate the shake correction performance of the imaging device 1 based on a determination of whether the input excitation waveform 3 differs from the vibration waveform of the imaging device 1 that is actually excited.

[0033] (Second embodiment) A second embodiment of the present invention will now be described. Fig. 4 is a schematic diagram of an image evaluation device 200 in the second embodiment. With reference to Fig. 4, the schematic configuration of the image evaluation device 200 according to the second embodiment of the present invention will be described. Note that components similar to those in the above-described embodiment are given the same reference numerals and descriptions thereof will be omitted. As shown in Fig. 4, the image evaluation device 200 in the second embodiment has the same configuration as the image evaluation device 100 in the first embodiment, except that it does not have a display unit 8.

[0034] 5 is a flowchart showing the processing from vibration of the vibration table 2 to imaging evaluation in the second embodiment. These processing steps are performed by the CPU included in the calculation device 9.

[0035] As in the above-described embodiment, in steps S101 to S103, the vibration table 2 is driven based on the vibration waveform 3 to vibrate the imaging device 1. The vibration of the imaging device 1 is detected by the vibration detection unit 5. In step S104, the comparison unit 6 compares the vibration waveform 3 with the vibration detection result detected by the vibration detection unit 5.

[0036] In step S105, the comparison unit 6 determines whether the vibration detection result for the excitation waveform 3 is within a predetermined range. In this embodiment, the determination result is sent to the vibration table control device 4 or the imaging evaluation unit 7. This will be described in detail next.

[0037] If it is determined in step S105 that the vibration detection result is within the predetermined range, the process proceeds to step S106, where an image of the subject 10 is captured, and the amount of blur in the captured image is calculated in step S107, after which the process ends. On the other hand, in the second embodiment, if it is determined that the vibration detection result is outside the predetermined range, the process proceeds to step S109.

[0038] In step S109, the vibration table control device 4 changes the control of the vibration table 2. At this time, the vibration table control device 4 changes to perform feedback control using the vibration detection result of the vibration detection unit 5, and the process returns to step S102. As described above, in this embodiment, the vibration table control device 4 is configured to be changeable in its control state regarding vibration. Specifically, the control of the vibration applied to the vibration table 2 by the vibration table control device 4 can be changed. When changing the control of the vibration table control device 4, the vibration of the vibration table 2 is controlled so that the vibration detection result for the vibration waveform 3 falls within a predetermined range. As a result, the imaging device 1 is brought into a vibration state equivalent to the vibration waveform 3. Therefore, according to this embodiment, even if the vibration detection result for the vibration waveform 3 is outside the predetermined range, changing the control of the vibration table control device 4 makes it possible to perform imaging evaluation with the imaging device 1 in a vibration state equivalent to the vibration waveform 3.

[0039] As described above, in this embodiment, imaging evaluation is performed based on the result of comparing the vibration waveform 3 of the vibration table 2 with the vibration of the imaging device 1. Therefore, it is possible to provide an image evaluation device 200 that can evaluate the image stabilization performance of the imaging device 1 based on whether or not the input vibration waveform 3 differs from the vibration waveform of the imaging device 1 that is actually excited.

[0040] (Third embodiment) A third embodiment of the present invention will now be described. The overall configuration of the image evaluation device 100 of the third embodiment is similar to that of the image evaluation device 100 of the first embodiment shown in Fig. 1. Fig. 6 is a flowchart showing the process from vibration of the vibration table 2 to image evaluation in the third embodiment. Note that the same components as those in the above-mentioned embodiments are given the same reference numerals and their description will be omitted.

[0041] In step S202, the vibration table control device 4 to which the vibration waveform 3 was input in step S101 vibrates only one of the vibration axes. For example, only the pitching stage 2P of the vibration table 2 is vibrated, and the other stages such as the yawing stage 2Y are kept stationary.

[0042] In step S203, the vibration detection unit 5 detects vibrations about a plurality of detection axes, including the pitching stage 2P that rotates and vibrates about the X axis.

[0043] In step S204, the excitation waveform 3 of the pitching stage 2P is compared with a plurality of vibration detection results detected by the vibration detection unit 5 for a plurality of detection axes.

[0044] In step S205, the comparison unit 6 compares the vibration detection result around the excited axis and the vibration detection result around the non-excited axis with the excitation waveform 3. As a result, if it is determined that the vibration detection result around the excited axis is within a predetermined range and that the vibration detection result around the non-excited axis is sufficiently small, the process proceeds to step S106, and ends after step S107. On the other hand, if the vibration detection result around the non-excited axis detects vibration that is not sufficiently small and is equal to or greater than a predetermined value, the process proceeds to step S208.

[0045] In step S208, vibrations around an axis that is not being excited are detected. Therefore, the display unit 8 displays a message that crosstalk is occurring in the vibration state of the imaging device 1. Here, crosstalk means that when a load is applied to only one axis, it affects the output of the other axes. In this embodiment, crosstalk can be said to have occurred when vibrations are output in a detection axis direction different from the one detection axis direction that is being excited. Processing ends after step S208.

[0046] In this embodiment, if the occurrence of crosstalk is displayed in step S208, the process is terminated immediately, but the present invention is not limited to this. For example, after step S208, after changing the holding method of the imaging device 1, it may be determined again whether the vibration detection result around the excitation axis is within a predetermined range and whether the vibration detection result around the non-excited axis is sufficiently small.

[0047] Here, a specific holding method to be changed is, for example, a holding method of the imaging device 1 using a connecting member 2Jb shown in Fig. 7. Fig. 7 is a diagram showing a holding method of the imaging device 1 using a connecting member 2Jb different from the holding method in Fig. 1. The connecting member 2Jb shown in Fig. 7 is a stage having a slide mechanism (not shown) that can rotate around the X-axis, Y-axis, and Z-axis. Therefore, the angle of the imaging device 1 relative to the vibration table 2 can be changed by the connecting member 2Jb.

[0048] According to this embodiment, the possibility of imaging evaluation is determined based on the comparison result between the excitation waveform 3 and the vibration detection result of the imaging device 1. Therefore, it is possible to provide an image evaluation device 100 that can evaluate the image stabilization performance of the imaging device 1 based on the determination of whether the input excitation waveform 3 differs from the vibration waveform actually excited by the imaging device 1.

[0049] (Fourth embodiment) A fourth embodiment of the present invention will now be described. FIG. 8 is a schematic diagram of an image evaluation device 300 according to the fourth embodiment. The schematic configuration of the image evaluation device 300 according to the fourth embodiment of the present invention will be described with reference to FIG. 8. In this embodiment, if the imaging evaluation unit 7 determines that the vibration detection result is outside a predetermined range, the image stabilization function is evaluated using an evaluation method different from the imaging evaluation performed in step S107. Note that components similar to those in the above-described embodiments are assigned the same reference numerals and their description will be omitted. As shown in FIG. 8, the image evaluation device 300 according to the fourth embodiment has the same configuration as the image evaluation device 100 according to the first embodiment, except that it does not have a display unit 8.

[0050] 9 is a flowchart showing the processing from vibration of the vibration table 2 to imaging evaluation in the fourth embodiment. These processing steps are performed by the CPU included in the calculation device 9.

[0051] As in the previous embodiment, in steps S101 to S103, the vibration table 2 is driven based on the excitation waveform 3 to vibrate the imaging device 1. The vibration of the imaging device 1 is detected by the vibration detection unit 5. In step S104, the comparison unit 6 compares the excitation waveform 3 with the vibration detection result detected by the vibration detection unit 5. In step S105, the comparison unit 6 determines whether the vibration detection result for the excitation waveform 3 is within a predetermined range. The determination result is sent to the imaging evaluation unit 7. In step S105, if the vibration detection result is within the predetermined range, the process proceeds to step S106, where the subject 10 is imaged. Thereafter, the process proceeds to S107, where the amount of blur of the captured image is calculated. On the other hand, in step S105, if the vibration detection result is outside the predetermined range, the process proceeds to step S110.

[0052] In step S110, subject 10 is imaged when the vibration detection result is outside a predetermined range. In step S110, image capturing is performed with the image stabilization function of imaging device 1 turned off. Next, in step S111, image capturing is performed with the image stabilization function of imaging device 1 turned on.

[0053] In step S112, the amount of shake is calculated from the images captured in steps S110 and S111. Then, the amount of shake correction of the shake correction function of the imaging device 1 is calculated by taking the difference between the amount of shake when the shake correction function is off and the amount of shake when the shake correction function is on.

[0054] In this embodiment, if the vibration detection result is out of range, the imaging evaluation unit 7 changes the imaging evaluation method and calculates the shake correction amount of the shake correction function of the imaging device 1. Therefore, it is possible to provide an image evaluation device 300 that can evaluate the shake correction performance of the imaging device 1 based on whether or not the input vibration waveform 3 differs from the vibration waveform actually applied to the imaging device 1.

[0055] (Fifth embodiment) A fifth embodiment of the present invention will be described. A fifth embodiment of the present invention will be described. The overall configuration of an image evaluation device 300 of the fifth embodiment is similar to that of the image evaluation device 300 of the third embodiment shown in FIG. 8. FIG. 10 is a flowchart showing the processing from vibration of the vibration table 2 to image evaluation in the fifth embodiment. Note that the same components as those in the above-mentioned embodiments are given the same reference numerals and some of the description will be omitted.

[0056] Steps S101 to S107 are the same as in the fourth embodiment. Furthermore, if the vibration detection result is outside the predetermined range in step S105, the process proceeds to step S110. Then, in accordance with steps S111 and S112, the difference between the amount of shake when the shake correction function is off and the amount of shake when the shake correction function is on is calculated to calculate the shake correction amount of the shake correction function. After step S112, the process proceeds to step S113.

[0057] In step S113, the amount of shake expected from the excitation waveform 3 is calculated. For example, the calculation is performed using the focal length information of the imaging device 1 from equation (1). Amount of blur = focal length × tanα ···(1) α: Vibration angle due to excitation waveform

[0058] In step S114, the difference between the amount of shake calculated by equation (1) and the amount of shake correction calculated in step S112 is set as the amount of shake after shake correction that is expected when the imaging device 1 is vibrated based on the excitation waveform 3 and an image is captured.

[0059] According to this embodiment, even if the vibration detection result for the excitation waveform 3 is outside a predetermined range, the imaging evaluation method is changed, and the imaging device 1 is vibrated based on the excitation waveform 3 and the amount of shake after shake correction that is expected when imaging is performed is calculated and evaluated, thereby making it possible to evaluate the imaging.

[0060] As described above, it is possible to provide an image evaluation device 300 that can evaluate imaging based on the results of comparing the vibration waveform 3 of the vibration table 2 with the vibration of the imaging device 1. Therefore, it is possible to provide an image evaluation device 300 that can evaluate the image stabilization performance of the imaging device 1 based on whether or not the input vibration waveform 3 differs from the vibration waveform of the imaging device 1 that is actually vibrated.

[0061] The present invention can also be realized by supplying a program that realizes one or more functions of the embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. The present invention can also be realized by a circuit (e.g., ASIC) that realizes one or more functions. [Explanation of symbols]

[0062] 1 Imaging equipment 2. Shaking table 3 Excitation waveform 5. Vibration detection unit 6 Comparison section 7. Imaging evaluation section 9 Arithmetic unit 100 Image evaluation device

Claims

1. A comparison means for comparing an input waveform for vibrating an imaging device having a shake correction function with a waveform of a vibration detection result detected by a vibration detection unit that detects vibration of the imaging device; an imaging evaluation unit that performs imaging evaluation, which is an evaluation of the image stabilization function, based on an imaging result of the subject by the imaging device; the imaging evaluation means performs the imaging evaluation when the comparison means determines that the vibration detection result for the input waveform is within a predetermined range, and when the comparison means determines that the vibration detection result is outside the predetermined range, evaluates the image stabilization function using an evaluation method different from the imaging evaluation. An image evaluation device characterized by:

2. a display unit that displays, when it is determined that the vibration detection result is outside a predetermined range, that the vibration detection result is outside the predetermined range; 2. The image evaluation device according to claim 1.

3. a display unit that displays the vibration detection result; the vibration detection unit is capable of detecting vibrations in a plurality of detection axis directions, the comparison means determines that the vibration detection result is outside a predetermined range when the vibration detection unit detects that vibration in a detection axis direction other than one of the plurality of detection axis directions in response to vibration in the one detection axis direction is equal to or greater than a predetermined magnitude, The display unit displays the vibration detection result outside a predetermined range.

2. The image evaluation device according to claim 1.

4. The evaluation method different from the imaging evaluation is an evaluation method in which a shake correction amount is calculated from the difference between the amount of shake of the imaging device when the shake correction function is turned off and the amount of shake of the imaging device when the shake correction function is turned on, and the shake correction function is evaluated based on the amount of shake correction.

2. The image evaluation device according to claim 1.

5. The evaluation method different from the imaging evaluation is an evaluation method that calculates a shake correction amount from the difference between the amount of shake of the imaging device when it is vibrated with the shake correction function turned off and the amount of shake of the imaging device when it is vibrated with the shake correction function turned on, calculates an estimated amount of shake when the imaging device is vibrated based on the input waveform using the shake correction amount, and evaluates the shake correction function based on the estimated amount of shake.

2. The image evaluation device according to claim 1.

6. The imaging evaluation is an evaluation of the image stabilization function based on the blur width of a predetermined portion of an image captured by the imaging device when the image stabilization function is turned on and vibration is applied.

6. The image evaluation device according to claim 1, wherein the image evaluation device is a display device.

7. A vibration table control unit that instructs a change in the control state of a vibration table that vibrates the imaging device when it is determined that the vibration detection result is outside a predetermined range.

2. The image evaluation device according to claim 1.

8. A vibration table that holds the imaging device and is vibrated based on the input waveform, and a vibration table control unit that controls the vibration applied to the vibration table.

2. The image evaluation device according to claim 1.

9. The vibration table is configured to be able to hold the imaging device at at least two positions.

9. The image evaluation device according to claim 8.

10. the imaging device has an imaging lens and an imaging device main body, The vibration table holds at least the imaging lens and the imaging device body with the same member.

10. The image evaluation device according to claim 9.

11. The vibration table is capable of changing the position where the imaging device is held on the vibration table.

11. The image evaluation device according to claim 8, wherein the image evaluation device is a device for evaluating an image.

12. The vibration table control unit performs feedback control so that the vibration detection result falls within a predetermined range.

12. The image evaluation device according to claim 7, wherein the image evaluation device is a device for evaluating an image.

13. A vibration table that holds the imaging device and is vibrated based on the input waveform, and a vibration table control unit that controls the vibration applied to the vibration table, The vibration table is capable of changing the angle at which the imaging device is held on the vibration table.

4. The image evaluation device according to claim 3.

14. The vibration detection unit detects vibration based on a vibration detection member disposed inside the imaging device, a vibration detection member disposed outside the imaging device, or a motion vector obtained from a captured image.

14. The image evaluation device according to claim 1, wherein the image evaluation device is a device for evaluating an image.

15. the imaging device has an imaging lens and an imaging device main body, The vibration detection unit is disposed at the tip of the imaging lens.

15. The image evaluation device according to claim 1,

16. A comparison step of comparing an input waveform for vibrating an imaging device having a shake correction function with a waveform of a vibration detection result detected by vibration detection means for detecting vibration of the imaging device; an imaging evaluation step of performing an imaging evaluation that evaluates the image stabilization function based on an imaging result of the subject using the imaging device, In the imaging evaluation step, when it is determined that the vibration detection result is within a predetermined range, the imaging evaluation is performed, and when it is determined that the vibration detection result is outside the predetermined range, the image stabilization function is evaluated using an evaluation method different from the imaging evaluation. An image evaluation method comprising:

17. A program for causing a computer to evaluate a shake correction function of an imaging device, a comparison step of comparing an input waveform for vibrating the imaging device with a waveform of a vibration detection result detected by a vibration detection means for detecting vibration of the imaging device; an imaging evaluation step of performing an imaging evaluation that evaluates the image stabilization function based on an imaging result of the subject using the imaging device, In the imaging evaluation step, when it is determined that the vibration detection result is within a predetermined range, the imaging evaluation is performed, and when it is determined that the vibration detection result is outside the predetermined range, the image stabilization function is evaluated using an evaluation method different from the imaging evaluation. A program characterized by:

Images