Imaging system

Abstract

To provide an imaging system excellent in usability that allows a user to easily set desired adjustment.SOLUTION: An imaging system comprises: imaging means; output means having a plurality of output units that can output output videos to the outside, on the basis of an original video photographed by the imaging means; first setting means that sets, from the original video, areas of the plurality of output videos output respectively from the plurality of output units, and that can set the areas different from each other as the areas of the plurality of output videos; second setting means that sets an individual setting value to each of the areas of the plurality of output videos; and adjustment means that performs adjustment of the entire original video by using the setting value set to a first area of the areas of the plurality of output videos.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an imaging system capable of crop processing.

Background Art

[0002] There is an imaging system having a crop function for cutting out and using a part of a captured video. In this imaging system, usually, adjustments such as focus, exposure, and color balance that affect the entire captured video are performed so that the cut-out video becomes preferable. At that time, it can be said that the sensing area when these adjustments are automatically performed is preferably within the crop area. Patent Document 1 discloses a technique for quickly applying an adjustment value when switching the target image in a system that cuts out and uses the target image (crop area) from a wide-angle image (entire area) by creating and correcting a temporary correction value for the switching destination using the information of the wide-angle image.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present inventors have developed an imaging system having a function of generating output videos of different crop areas from one video source (original video) and simultaneously outputting those output videos to the outside via a plurality of output terminals. When a plurality of output videos are simultaneously output in this way, it is difficult to automatically determine how to set adjustments such as focus, exposure, and color balance. This is because the brightness and subject of the video differ for each crop area, and if adjusted according to one crop area, the video quality of other crop areas may deteriorate. Also, the device side cannot automatically determine which video among the plurality of output videos the user values the most.

[0005] Therefore, an object of the present invention is to provide an imaging system with excellent usability that allows a user to easily set desired adjustments.

Means for Solving the Problems

[0006] The present disclosure includes an imaging unit, an output unit having a plurality of output units capable of outputting an output video externally based on the original video captured by the imaging unit, and a first setting unit that sets regions of a plurality of output videos output from the plurality of output units from the original video, the first setting unit capable of setting different regions as the regions of the plurality of output videos, a second setting unit that sets individual setting values for each of the regions of the plurality of output videos, and an adjustment unit that adjusts the entire original video using the setting value set for a first region among the regions of the plurality of output videos.

Effects of the Invention

[0007] According to the present invention, it is possible to provide an imaging system with excellent usability that allows a user to easily set desired adjustments.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] <Example 1> Hereinafter, Example 1 of the present invention will be described. In Example 1, an exposure adjustment method in an imaging system capable of outputting videos selected as different crop regions to a plurality of output units will be described.

[0010] FIG. 1 is a diagram showing the configuration of the imaging system in Example 1. The imaging system is composed of an imaging device 1 and a controller device 2. The imaging device 1 includes a lens 110, an imaging unit 120, an image processing unit 130, an output unit 140, a crop region setting unit 150, an assignment setting unit 160, an adjustment unit 170, and a camera communication unit 180.

[0011] The lens 110 is a mechanism including an optical component that takes in light and forms an image on the imaging unit 120, and the lens can be moved for zooming and focusing adjustment. The imaging unit 120 (imaging means) is an imaging sensor that converts the taken-in light into an electrical signal. The image processing unit 130 (image processing means) is an image processing circuit that performs various image processes on the electrical signal converted by the imaging unit 120 and converts it into a video signal, and has a cutout unit 131 and a plurality of image processing blocks (not shown). Hereinafter, the raw video captured by the imaging unit 120 and taken into the image processing unit 130 is referred to as the "original video".

[0012] The output unit 140 (output means) is a video output interface that outputs video signals such as HDMI (registered trademark) and SDI (Serial Digital Interface) to the outside, and has a plurality of output units such as an output unit A 141A and an output unit B 141B. The crop region setting unit 150 (region setting means) is a region for crop processing that cuts out a part of the video signal Perform control for domain setting. The allocation setting unit 160 (allocation means) performs allocation control of a plurality of output units included in the output unit 140 and the crop area. The adjustment unit 170 (adjustment means) includes an AE setting management unit 171, an AE unit 172, and a storage area (not shown), and performs control such as management and adjustment of various parameter settings related to exposure in the imaging unit 120. The camera communication unit 180 is a communication interface that communicates with the controller device 2 and other devices.

[0013] The controller device 2 includes a selection unit 210 and a controller communication unit 220. The selection unit 210 (selection means) includes an operation input unit 211 that receives user input, a setting screen control unit 212 that creates a screen to be presented to the user, and a display unit 213 that displays the created setting screen. The selection unit 210 provides a user interface (UI) (first setting means) for setting areas of a plurality of output videos respectively output from a plurality of output units, a UI (second setting means) for setting individual setting values for each area of the plurality of output videos, and the like. The controller communication unit 220 is a communication interface that communicates with the imaging device 1 and other devices.

[0014] Note that, although omitted for simplicity of explanation in this embodiment, the imaging device 1 may include a recording unit (not shown) that records video data on a recording medium such as a built-in memory or an SD card. Also, a live view video may be transmitted from the imaging device 1 to the controller device 2 so that the live view video can be viewed on the controller device 2.

[0015] First, the process from when the imaging device 1 converts the light captured from the lens into a video signal output and outputs the video externally will be described. The light collected by the lens 110 is photoelectrically converted in the imaging unit 120. The photoelectrically converted imaging signal is subjected to various image processes by the image processing unit 130 to generate a video signal. The output unit 140 is an external output such as HDMI or SDI. The video signal generated by the image processing unit 130 is output externally from the output unit 140, and the video signal is transmitted to a connected monitor, switcher, or the like.

[0016] Next, the crop process of cutting out a part of the video signal will be described. FIG. 2 shows an example of a video captured by the imaging device 1, and FIG. 3 is a diagram showing an example of an operation screen displayed on the selection unit 210 of the controller device 2.

[0017] The crop setting screen 20 shown in FIG. 3 is composed of a menu cursor 21 representing the currently selected item and the following seven items (22 to 28). The output unit A assignment setting item 22 is an item for setting the crop area to be assigned to the output unit A141A (that is, the area of the video output from the output terminal of the output unit A). The output unit B assignment setting item 23 is an item for setting the crop area to be assigned to the output unit B141B (that is, the area of the video output from the output terminal of the output unit B). The crop 1 area setting item 24 is an item for setting the size and position of crop 1. The crop 2 area setting item 25 is an item for setting the size and position of crop 2. The adjustment reference area selection item 26 is an item for selecting the area that serves as the reference for correcting various adjustment values, and the entire screen, crop 1, and crop 2 can be selected. Items 27 and 28 are items for setting individual setting values for each area. The exposure correction item 27 when crop 1 is selected is an item for setting the exposure correction value applied when crop 1 is selected in the adjustment reference area selection item 26. The exposure correction item 28 when crop 2 is selected is an item for setting the exposure correction value applied when crop 2 is selected in the adjustment reference area selection item 26.

[0018] In FIG. 2, the area surrounded by the solid line 10 represents the entire screen area captured by the imaging unit 120, and the areas surrounded by the broken lines 11 and 12 represent the respective crop areas, and an arbitrary cut-out size and position can be specified by the selection unit 210 of the controller device 2. When configured such that the controller device 2 can confirm the live view as an imaging system, it is preferable to be able to display a video in which each crop frame can be visually recognized, such as the video in FIG. 2. Also It is also preferable to display the numbers of the respective crop areas (such as "Crop 1" and "Crop 2") together with the crop frames. The size and position information of each crop area are displayed in the Crop 1 Area Setting Item 24 and the Crop 2 Area Setting Item 25. In the case of the content shown in FIG. 3, the crop area of Crop 1 has a size of 1280x720 and the center coordinate position is (1136, 1392), and the crop area of Crop 2 has a size of 1280x720 and the center coordinate position is (2627, 1392). As for the method of specifying the position and size of the crop area, you may select the dashed lines 11 and 12 and perform zooming and moving operations, or you may input values in the Crop 1 Area Setting Item 24 and the Crop 2 Area Setting Item 25 of the crop setting screen 20 shown in FIG. 3 to perform the setting.

[0019] The size and position information of the crop area specified by the selection unit 210 are transmitted from the controller communication unit 220 to the camera communication unit 180. The camera communication unit 180 discriminates the received information and transmits it to the crop area setting unit 150 in the case of the cutout size and position information of the crop area.

[0020] The crop area setting unit 150 performs the setting of the cutout unit 131 based on the transmitted cutout size and position information of the crop area. The cutout unit 131 is a part of the circuit included in the image processing unit 130 and is capable of generating a video signal obtained by cutting out an arbitrary area from the captured video. The video signal generated by the cutout unit 131 is transmitted to the output unit 140 after various image processes of the image processing unit 130 are performed, and is output to the outside as a video signal cut out in the specified crop area.

[0021] Next, the method of allocating the video cut out in the crop area to the output unit will be described. As shown in FIG. 2, a plurality of crop areas can be set, and as shown in FIG. 1, the output unit 140 has a plurality of output units. Therefore, it is necessary to specify which output unit the video of which crop area is to be output to. Examples of the specification method and the processes to be executed will be described below.

[0022] For the selection items of the output unit A allocation setting item 22 and the output unit B allocation setting item 23 in FIG. 3, there are full screen, crop 1, and crop 2, and it is possible to set the area to be allocated to the corresponding output unit. When the setting is performed by the output unit A allocation setting item 22 and the output unit B allocation setting item 23, the set allocation information is transmitted from the controller communication unit 220 to the camera communication unit 180. The camera communication unit 180 determines whether the received information is allocation information, and if it is allocation information, it transmits it to the allocation setting unit 160. The allocation setting unit 160 controls the output destination of the video signal cut out by the cut-out unit 131 or the full-screen video signal based on the transmitted allocation information.

[0023] Next, the method for adjusting the video will be described. FIGS. 4 and 5 are videos cut out in the areas of crop 1 and crop 2, respectively, of the video taken in FIG. 2. In this case, the exposure of the crop 1 video shown in FIG. 4 is appropriate, but the exposure of the crop 2 video is underexposed. FIG. 6 is a video taken after adjustment so that the exposure of crop 2 is the appropriate exposure. In this case, the exposure of the crop 2 video shown in FIG. 8 is appropriate, but the exposure of the crop 1 video shown in FIG. 7 is overexposed.

[0024] When there is a brightness difference in the video captured in this way, the area cut out by the crop may not have an appropriate exposure. In this case, it is necessary for the user to determine which exposure to adjust to. Therefore, in this embodiment, an exposure correction value is set for each crop area, and the exposure correction intended by the user is performed by selecting the area for which the exposure is to be adjusted.

[0025] First, the user uses the exposure correction item 27 when crop 1 is selected and the exposure correction item 28 to set the exposure correction value for each crop area. Next, the area serving as the adjustment reference is specified by the adjustment reference area selection item 26. The adjustment information specified by the selection unit 210 is transmitted from the controller communication unit 220 to the camera communication unit 180. The camera communication unit 180 determines whether the received information is adjustment information, and if it is adjustment information, it transmits it to the AE setting management unit 171.

[0026] The AE setting management unit 171 acquires the exposure correction value of the crop area corresponding to the transmitted adjustment reference area selection item and transmits it to the AE unit 172. The AE unit 172 performs exposure correction by setting the aperture, shutter speed, and ISO sensitivity of the lens 110 for the imaging unit 120 based on the transmitted exposure correction value. By performing such processing, the adjustment intended by the user becomes possible.

[0027] A series of controls from when the user changes the settings until the adjustment is applied can be realized by applying processing such as the flowchart illustrated in FIG. 9. The flowchart of FIG. 9 will be described.

[0028] In S901, the controller device 2 monitors whether the adjustment reference area selection item 26 has been changed. If there has been a change since the previous execution of S901, it branches to S902; if there has been no change, it branches to S904. In S902, the controller device 2 notifies the AE setting management unit 171 of the value after the change of the adjustment reference area (new user setting value) through the camera communication unit 180 from the controller communication unit 220 by the processing as described above. In S903, the AE setting management unit 171 saves the notified new user setting value of the adjustment reference area in a storage area (not shown) and proceeds to S913 described later.

[0029] In S904, the controller device 2 monitors whether the exposure correction item 27 at the time of Crop 1 selection has been changed. If there has been a change since the previous execution of S904, it branches to S905; if there has been no change, it branches to S907. In S905, the controller device 2 notifies the AE setting management unit 171 of the value after the change of the exposure correction value of Crop 1 (new user setting value) through the camera communication unit 180 from the controller communication unit 220 by the processing as described above. In S906, the AE setting management unit 171 saves the notified exposure correction value of Crop 1 in a storage area (not shown) and proceeds to S913 described later.

[0030] In S907 to S909, the same processing as in S904 to S906 is performed on the exposure correction value at the time of selecting Crop 2. Also, in S910 to S912, the same processing as in S904 to S906 is performed on the exposure correction value at the time of selecting the full screen. In this embodiment, the exposure correction value at the time of selecting the full screen is set using a setting screen different from the Crop setting screen 20 in FIG. 3. However, it is not limited to this, and an item for setting the exposure correction value at the time of selecting the full screen may be added to the Crop setting screen 20 in FIG. 3. If there is no change in S910, the process returns to S901.

[0031] In S913 and S915, the AE setting management unit 171 reads the set value of the adjustment reference area from the storage area, and branches to S914 if the adjustment reference area is Crop 1, to S916 if it is Crop 2, and to S917 if it is the full screen, respectively. In S914, the AE setting management unit 171 reads the exposure correction value of Crop 1 from the storage area and notifies the AE unit 172. In S916, the AE setting management unit 171 reads the exposure correction value of Crop 2 from the storage area and notifies the AE unit 172. In S917, the AE setting management unit 171 reads the exposure correction value of the full screen from the storage area and notifies the AE unit 172.

[0032] In S918, the AE unit 172 performs exposure correction of the imaging unit 120 as described above based on the notified exposure correction value. Then the process returns to S901. In this way, every time the setting is changed on the Crop setting screen 20, exposure correction using the exposure correction value corresponding to the adjustment reference area is applied to the imaging unit 120. Correction will be applied to the imaging unit 120.

[0033] As described above, in the imaging system according to this embodiment, just by the user selecting the adjustment reference area, it is possible to make the exposure adjustment of the intended crop area appropriate. Therefore, it is possible to provide an imaging system with excellent usability that allows the user to easily set the desired adjustment.

[0034] In this embodiment, when the user selects Crop 1, the exposure correction item 27 is used, and when the user selects Crop 2, the exposure correction item 28 is used to set the exposure correction value for each crop region. However, instead of such manual setting, the imaging device 1 may automatically set appropriate exposure correction for each crop region. For example, the imaging device 1 can calculate an appropriate exposure correction value for the specified crop region by performing photometry only on the specified crop region. Information about the crop region during this automatic exposure correction can be obtained by transmitting the cutout size and position information of the crop region from the crop region setting unit 150 to the adjustment unit 170.

[0035] Also, a function for checking whether the exposure in the region after the switch is as intended may be provided before switching the adjustment reference region. For example, imaging is performed without changing the exposure setting of the imaging unit 120. Then, the image processing unit 130 performs image processing (luminance correction) on the captured video to create a video for confirming the adjustment result that simulates the exposure correction after the switch, and outputs it to a confirmation unit (not shown) or an arbitrary output unit. The display method of the confirmation video may be, for example, a PinP display in which a small independent region is provided in the output video and the confirmation video is displayed there.

[0036] In addition, the imaging device 1 may have a configuration (recording means) capable of recording video data based on the original video captured by the imaging unit 120 in the built-in medium. In such a case, if the adjustment value of the imaging unit 120 is changed based on the exposure correction value of the adjustment reference area during the recording of the video data, there is a possibility that video data with inappropriate exposure may be recorded in the built-in medium. This is because the area of the video recorded in the built-in medium and the adjustment reference area of the output video output from the output unit are not necessarily the same, and the appropriate exposure correction amount may be different. Therefore, in order to prevent video data with inappropriate exposure from being recorded, during the recording of video data to the built-in medium, the adjustment unit 170 may not perform the exposure adjustment of the imaging unit 120 based on the exposure correction value of the adjustment reference area. Further, in this case, the adjustment unit 170 (AE unit 172) may perform the exposure adjustment of the imaging unit 120 based on the exposure correction value preset for the area to be recorded in the built-in medium (which may be the entire area or the crop area). Note that the user may be able to set the exposure correction value for the recording target area on the setting screen provided by the selection unit 210.

[0037] Also, the exposure correction value used in the actual adjustment may be determined by synthesizing the exposure correction values set for each crop area. For example, when the exposure correction value at the time of selecting Crop 1 is ±0 and the exposure correction value at the time of selecting Crop 2 is +2 on the crop setting screen 20, they may be weighted-averaged at a ratio of 1:1, for example, and an exposure correction value of +1 (= ±0 / 2 + 2 / 2) may be used for the adjustment. The synthesis ratio (weight) is not limited to 1:1, may be a fixed value, or may be changeable. For example, an item for setting the synthesis ratio (weight for each crop area) may be added to the crop setting screen 20, and the user may be allowed to set it arbitrarily. Also, the synthesis ratio may be adaptively (automatically) changed according to the area ratio or luminance ratio of the crop areas.

[0038] In addition, although the present embodiment targets exposure correction, it may also target color correction such as white balance. In this case, in the image processing unit 130, it is preferable to have a color correction unit that applies color correction to each of the cut-out videos after the cut-out unit 131. The color correction unit may have a plurality of types of color correction parameters preset for color correction. The selection unit 2 10 provides a user interface for specifying color correction parameters and preferably allows the user to select color correction parameters for each crop region. As the color correction parameters, for example, parameters for correcting the influence of the color of light in the shooting environment such as sunlight, shade, and light bulbs may be preset.

[0039] In addition, in the present embodiment, the selection unit 210 has been described as a configuration of the controller device 2, but the imaging device 1 or the switcher device may have the selection unit 210. That is, the imaging system may have a configuration combining the imaging device 1 and the controller device 2, a configuration combining the imaging device 1 and the switcher device, or a configuration of the imaging device 1 alone.

[0040] <Example 2> Hereinafter, Example 2 of the present invention will be described.

[0041] In the adjustment method described in Example 1, although the video of the area selected as the adjustment reference area has proper exposure, the exposure of the video of the area outside the adjustment reference area may not become proper. In Example 2, image processing is used to reduce the exposure problem of the area outside the adjustment reference area. In addition, in the present embodiment, it is also exemplified the process of suppressing data loss such as white blooming and black crushing of the video signal of the output unit to be prioritized by selecting which output unit among the plurality of output units is to be prioritized and performing adjustment of the imaging unit 120 based on the setting of the prioritized output unit.

[0042] FIG. 10 is a diagram showing the configuration of the imaging system in Embodiment 2. The imaging system in Embodiment 2 differs from the configuration of Embodiment 1 in that it has an individual image processing unit 132 and a priority output setting unit 190. Also, the crop setting screen displayed on the selection unit 210 of the controller device 2 was the operation screen as shown in FIG. 3 in Embodiment 1, but in Embodiment 2, the operation screen as shown in FIG. 11 is used, which is different. Since the rest is the same as in Embodiment 1, the description is omitted.

[0043] The individual image processing unit 132 performs image processing individually on each video signal created by the cutout unit 131 and output to the output unit A 141A and the output unit B 141B. The priority output setting unit 190 controls the priority output terminals used during the adjustment described later.

[0044] Using FIGS. 11 to 13, the exposure correction process using the individual image processing unit 132 and the priority output setting unit 190 will be described. FIG. 11 is a diagram showing an example of the crop setting screen displayed on the selection unit 210 of the controller device 2. FIG. 12 is a flowchart of the exposure correction process. FIG. 13 is a diagram showing the exposure correction process results at each block of the imaging device 1 when the settings of the crop setting screen 30 shown in FIG. 11 are applied.

[0045] The crop setting screen 30 shown in FIG. 11 is different only in that the adjustment reference area selection item 26 in the crop setting screen 20 of FIG. 3 is replaced by the priority output terminal item 36, and the other items are the same as in Embodiment 1. The priority output terminal item 36 is an item for setting the output terminal that preferentially performs adjustment so that the video signal becomes appropriate, and the output unit A and the output unit B can be selected. FIG. 11 shows the state where the output unit B is set.

[0046] When the items of the crop setting screen 30 shown in FIG. 11 are changed, the exposure correction process shown in FIG. 12 is started. When the exposure correction process is started, the controller device 2 first executes the following process to obtain the exposure correction value assigned to the priority output terminal. In S1201, the controller device 2 obtains the value set in the priority output terminal item 36. If the output unit A is selected, the process proceeds to S1202. If the output unit B is selected, the process proceeds to S1203. In S1202, the controller device 2 obtains the value set in the output unit A assignment setting item 22 (that is, the setting value of the area output from the output terminal of the output unit A). If it is the full screen, the process proceeds to S1204. If it is Crop 1, the process proceeds to S1205. If it is Crop 2, the process proceeds to S1206. In S1203, the controller device 2 obtains the value set in the output unit B assignment setting item 23 (that is, the setting value of the area output from the output terminal of the output unit B). Similarly, if it is the full screen, the process proceeds to S1204. If it is Crop 1, the process proceeds to S1205. If it is Crop 2, the process proceeds to S1206. In S1204, the exposure correction value set for the full screen is obtained. In S1205, the exposure correction value set for Crop 1 is obtained. In S1206, the exposure correction value set for Crop 2 is obtained. The exposure correction value (the exposure correction value assigned to the priority output terminal) obtained in this way is sent from the controller device 2 to the imaging device 1. Then, the process proceeds to S1207. After that, the process proceeds to S1207.

[0047] Next, perform exposure correction using the exposure correction value assigned to the acquired priority output terminal. In S1207, the adjustment unit 170 executes exposure correction processing on the imaging unit 120 based on the exposure correction value assigned to the priority output terminal acquired in S1204 to S1206. In the case of the setting example of the crop setting screen 30 shown in FIG. 11, the priority output terminal is "Output Unit B", the area assigned to it is "Crop 2", and the exposure correction value set in that area is +2. Therefore, in the imaging unit 120, a positively corrected video as indicated by reference numeral 40 in FIG. 13 is captured. The video captured by the imaging unit 120 is subjected to a cropping process of the crop area by the cutout unit 131, and the image 41A of the crop 1 area output to the output unit A141A and the image 41B of the crop 2 area output to the output unit B141B are transmitted to the individual image processing unit 132.

[0048] The individual image processing unit 132 performs the following individual processing on the images 41A and 41B output to each output unit so that videos with appropriate exposure are output from each output unit. First, since the image 41B of the crop 2 area assigned to the output unit B, which is the priority output terminal, is an image cut out from the original video captured with appropriate exposure, no individual image processing is performed. On the other hand, for the image 41A of the crop 1 area assigned to the output unit A other than the priority output terminal, the individual image processing unit 132 performs image processing based on the exposure correction amount for crop 1 to adjust the exposure of the image 41A. At this time, the individual image processing unit 132 may adjust the brightness of the image 41A so that the brightness of the image 41A approaches the brightness of the video captured in a state where the exposure of the imaging unit 120 is adjusted based on the exposure correction amount for crop 1. That is, the individual image processing unit 132 simulates the exposure adjustment of the imaging unit 120 through image processing (brightness adjustment). Note that the brightness adjustment amount for the image 41A may be determined (calculated) based on the exposure correction amount applied to the exposure adjustment of the imaging unit 120 (the exposure correction amount for the crop 2 area) and the exposure correction amount for the area of the image 41A (the exposure correction amount for the crop 1 area). Hereinafter, a specific processing example will be described.

[0049] First, in S1208, the individual image processing unit 132 determines whether the correction of the video output to all output units is completed. If not completed, the process proceeds to S1209, and if completed, the individual image processing ends.

[0050] In S1209, the individual image processing unit 132 acquires the exposure correction value assigned to the output unit from the allocation setting information of the output unit to be subjected to individual image processing and the exposure correction information at the time of crop selection. In S1210, the individual image processing unit 132 acquires the difference between the "exposure correction value of the output unit" obtained in S1209 and the "exposure correction value assigned to the priority output terminal". For example, in the case of output unit A, the exposure correction value of output unit A is ±0, and the exposure correction value of output unit B assigned to the priority output terminal is +2, so 0 - 2 = -2 is obtained as the difference.

[0051] In S1211, the individual image processing unit 132 corrects the exposure by image processing based on the difference obtained in S1210. For example, in the case of output unit A, for the image 41A input to the individual image processing unit 132, a brightness correction of -2 is performed by image processing to generate an image such as sign 42A. On the other hand, in the case of output unit B, since the difference in the exposure correction value is 0, the brightness correction by the individual image processing unit 132 is not performed, and the input image 41B is output as it is as image 42B. When the individual image processing is completed, the process proceeds to S1208, and the processes of S1209 to S1211 are repeated until the correction of all output units is completed. By performing the exposure correction as described above, the exposure adjustment is performed so that the video of the output unit specified by the priority output terminal is captured with appropriate exposure, and for the videos of the other output units, it is possible to output videos with the deviation from the appropriate exposure reduced by image processing.

[0052]

[0053] ​For example, assume that the output unit A is connected to a device used for video recording and distribution, and the output unit B is connected to a device used for previewing the video to be switched next. In this case, by setting the priority output terminal to the output unit A, it is possible to preferentially adjust the video used for video recording and distribution. Also, by using the priority output terminal setting, it is possible to synchronously perform the switching process of the crop area and the adjustment process associated with the change of the crop area. Further, options may be added to the priority output terminal item 36 so that the adjustment process is performed based on the area recorded in a recording unit (not shown).

[0054] Note that in this embodiment, in order to prevent data loss due to white blooming or black crush of the imaging signal obtained by the imaging unit 120, the exposure correction process is performed by using the imaging unit 120 and the individual image processing unit 132 in combination, but the exposure correction process may be performed only by the individual image processing unit 132.

[0055] Also, during recording to the built-in media, in order to prevent changes in the exposure of the video data to be recorded, it is preferable not to adjust the exposure of the imaging unit 120 by the adjustment unit 170. Also, in this case, the adjustment unit 170 may adjust the exposure of the imaging unit 120 based on the exposure correction value preset for the recording target area to the built-in media. Further, control may be performed so that the exposure correction process by luminance adjustment for the output video is performed using only the individual image processing unit 132.

[0056] <Example 3> Hereinafter, Example 3 of the present invention will be described.

[0057] The imaging systems of Example 1 and Example 2 were targeted at exposure adjustment, while the imaging system of Example 3 is targeted at autofocus adjustment. FIG. 14 is a diagram showing the configuration of the imaging system in Example 3. The configuration of the imaging system in Example 3 is different in that the adjustment unit 170 in Example 1 is replaced by an adjustment unit 1470 (adjustment means). Also, the crop setting screen displayed on the selection unit 210 of the controller device 2 was an operation screen as shown in FIG. 3 in Example 1, but in Example 3, an operation screen as shown in FIG. 16 is used, which is also different. Since the rest is the same as in Example 1, the description is omitted.

[0058] The adjustment unit 1470 performs control such as management and adjustment of various parameter settings related to autofocus in the lens 110. The adjustment unit 1470 has an AF setting management unit 1471 and an AF unit 1472.

[0059] Next, the crop process in Example 3 will be described. FIG. 15 shows an example of an image captured by the imaging device 1, and FIG. 16 is a diagram showing an example of the crop setting screen displayed on the selection unit 210 of the controller device 2.

[0060] Similar to FIG. 2 of Example 1, in FIG. 15, the solid line 1510 indicates the entire screen area captured by the imaging unit 120, and the dashed lines 1511 and 1512 indicate the areas of Crop 1 and Crop 2, respectively. The selection unit 210 of the controller device 2 can specify an arbitrary cutout size and position. Also, the frames 1513 and 1514 represent AF frames for Crop 1 and Crop 2, respectively, and are adjusted so that the focus of the subject within the frame is in focus in autofocus. Regarding the adjustment method of autofocus itself, since a known method can be used, the description is omitted.

[0061] The crop setting screen 1620 shown in FIG. 16 is a screen for performing various settings related to cropping, similar to FIG. 3 of Example 1. For those with the same reference numerals as in FIG. 3, the description is omitted since they have the same content. However, in the example of FIG. 16, Crop 1 has a size of 1280x720 and the center coordinate position is (1300, 1200), and Crop 2 has a size of 1280x720 and the center coordinate position is (2800, 950). The difference from the items in FIG. 3 is that the exposure correction item 27 when Crop 1 is selected and the exposure correction item 28 when Crop 2 is selected are replaced by the AF setting item 1627 when Crop 1 is selected and the AF setting item 1628 when Crop 2 is selected, respectively. The AF setting item 1627 when Crop 1 is selected and the AF setting item 1628 when Crop 2 is selected are the settings for autofocus to be applied when Crop 1 and Crop 2 are selected, respectively. Whether to actually apply it depends on the setting of the adjustment reference area selection item 26. In this embodiment, the AF setting value includes information specifying the size and position of the AF frame. Specifically, it is assumed that any one of the entire crop area, large frame, and small frame can be selected as the size of the AF frame, and the center coordinates can be set as the position of the AF frame. In FIG. 16, for the AF setting when Crop 1 is selected, the frame size is the large frame and the center coordinate position is (1300, 1400), and for the AF setting when Crop 2 is selected, the frame size is the small frame and the center coordinate position is (2800, 800). The items of the AF setting are merely examples, and for example, settings such as whether to execute autofocus intermittently or only once, or the enable / disable of settings such as face recognition and following may be added.

[0062] Next, a method for adjusting the video will be described. FIGS. 17 and 18 are videos cut out in the areas of Crop 1 and Crop 2 of the video in FIG. 15. In this case, the focus of the video of Crop 1 shown in FIG. 17 is appropriate, but the focus of the video of Crop 2 shown in FIG. 18 is blurred. FIG. 19 is a video taken after adjustment so that the focus of Crop 2 is appropriate. In this case, the video of Crop 2 shown in FIG. 21 is appropriate, but the video of Crop 1 shown in FIG. 20 has a blurred focus.

[0063] As shown in FIGS. 15 and 19, when there is a perspective distance difference between a plurality of subjects in the captured video, the subject in the region cut out by cropping may not be in proper focus. In this case, it is necessary for the user to determine which subject to focus on. Therefore, in this embodiment, a focus setting value is held for each crop region, and the user's intended focus adjustment is performed by selecting the region on which to focus.

[0064] First, the user uses the AF setting item 1627 when selecting Crop 1 and the AF setting item 1628 when selecting Crop 2 to set the frame size and position of the AF setting for each crop region. Next, the user designates the crop region that will be the adjustment reference region using the adjustment reference region selection item 26. The setting information designated by the selection unit 210 is transmitted from the controller communication unit 220 to the AF setting management unit 1471 via the camera communication unit 180, similar to the exposure adjustment information in the first embodiment.

[0065] The AF setting management unit 1471 acquires the AF setting value of the crop region designated as the adjustment reference region and transmits it to the AF unit 1472. Based on the transmitted AF setting value, the AF unit 1472 uses the imaging information of the imaging unit 120 or the distance measurement sensor value (not shown) to adjust the lens 110 to be in focus. By performing the processing in this way, it becomes possible to perform focus adjustment according to the AF setting intended by the user.

[0066] A series of controls from when the user changes the settings until the adjustment is applied can be realized by applying a process such as the flowchart illustrated in FIG. 22. The flowchart of FIG. 22 will be described.

[0067] In S2201, the controller device 2 monitors whether the adjustment reference area selection item 26 has been changed. If there has been a change since the previous execution of S2201, it branches to S2202; if there has been no change, it branches to S2204. In S2202, the controller device 2 notifies the new user setting value (the value after the change of the adjustment reference area) to the AF setting management unit 1471 via the camera communication unit 180 from the controller communication unit 220 by the processing as described above. In S2203, the AF setting management unit 1471 saves the notified new user setting value of the adjustment reference area to a storage area (not shown) and proceeds to S2213 described later.

[0068] In S2204, the controller device 2 monitors whether the AF setting item 1627 has been changed when Crop 1 is selected. If there has been a change since the previous execution of S2204, it branches to S2205; if there has been no change, it branches to S2207. In S2205, the controller device 2 notifies the new user setting value (the value after the change of the AF setting value of Crop 1) to the AF setting management unit 1471 via the camera communication unit 180 from the controller communication unit 220 by the processing as described above. In S2206, the AF setting management unit 1471 saves the notified AF setting value of Crop 1 to a storage area (not shown) and proceeds to S2213 described later.

[0069] In S2207 - S2209, the same processing as in S2204 - S2206 is performed for the AF setting value when Crop 2 is selected. Also, in S2210 - S2212, the same processing as in S2204 - S2206 is performed for the AF setting value when the full screen is selected. In this embodiment, the AF setting value when the full screen is selected is set using a setting screen different from the crop setting screen 1620 in FIG. 16. However, it is not limited to this, and an item for setting the AF setting value when the full screen is selected may be added to the crop setting screen 1620 in FIG. 16. If there is no change in S2210, it returns to S2201.

[0070] In S2213 and S2215, the AF setting management unit 1471 reads the setting value of the adjustment reference area from the memory area, and branches to S2214 when the adjustment reference area is Crop 1, to S2216 when it is Crop 2, and to S2217 when it is the full screen. In S2214, the AF setting management unit 1471 reads the AF setting value of Crop 1 from the memory area and notifies the AF unit 1472. In S2216, the AF setting management unit 1471 reads the AF setting value of Crop 2 from the memory area and notifies the AF unit 1472. In S2217, the AF setting management unit 1471 reads the AF setting value of the full screen from the memory area and notifies the AF unit 1472.

[0071] In S2218, the AF unit 1472 performs auto focus adjustment on the lens 110 as described above based on the notified AF setting value. Then it returns to S2201. In this way, every time the setting is changed on the crop setting screen 1620, the auto focus adjustment with the AF setting value corresponding to the adjustment reference area is applied to the lens 110.

[0072] Note that in this embodiment, the user sets the AF setting value for each crop area using the AF setting item 1627 when Crop 1 is selected and the AF setting item 1628 when Crop 2 is selected. However, instead of such manual setting, the imaging device 1 may perform auto focus using the imaging information for each crop area. The information regarding the crop area at the time of this auto focus can be obtained by transmitting the cut-out size and position information of the crop area from the crop area setting unit 150 to the adjustment unit 1470. Also, although the configuration is close to that of Embodiment 1 for simplicity of explanation, as in FIG. 10 of Embodiment 2, a priority output setting unit 190 may be added so that the output video of the terminal set to the priority output terminal is always in proper focus.

[0073] Also, if the adjustment value of the lens 110 is changed based on the AF setting value of the adjustment reference area during recording to the built-in media, there is a possibility that video data with inappropriate focus may be recorded on the built-in media. This is because the area of the video recorded on the built-in media and the adjustment reference area of the output video output from the output unit are not always the same, so the appropriate AF setting values may be different. Therefore, in order to prevent video data with inappropriate focus from being recorded, during recording of video data to the built-in media, the adjustment unit 1470 may be configured not to perform focus adjustment based on the AF setting value of the adjustment reference area. Further, in this case, the adjustment unit 1470 (AF unit 1472) may perform focus adjustment based on the AF setting value preset for the area to be recorded on the built-in media (which may be the entire area or a crop area). Note that the user may be able to set the AF setting value for the recording target area on the setting screen provided by the selection unit 210.

[0074] Also, in this embodiment, the selection unit 210 has been described as a configuration of the controller device 2, but the imaging device 1 or the switcher device may have the selection unit 210. That is, the imaging system may be configured by combining the imaging device 1 and the controller device 2, or may be configured by combining the imaging device 1 and the switcher device, or may be configured by the imaging device 1 alone.

[0075] <Example 4> Hereinafter, Example 4 of the present invention will be described.

[0076] The imaging systems of Example 1 and Example 2 targeted only exposure adjustment, and the imaging system of Example 3 targeted only autofocus adjustment. However, the imaging system of Example 4 targets both exposure adjustment and autofocus adjustment. When changing the adjustment reference area in this configuration, it is advisable to determine the execution timing of each automatic adjustment so as not to execute autofocus in an inappropriate exposure adjustment state. This will be described in this example.

[0077] FIG. 23 is a diagram showing the configuration of the imaging system in Example 4. The configuration of the adjustment unit 2370 (adjustment means) is different from that of FIG. 1 in Example 1 and FIG. 14 in Example 3. The adjustment unit 2370 includes an AE setting management unit 171, an AE unit 2371, an AF setting management unit 1471, and an AF unit 2372. Since the parts other than the AE unit 2371 and the AF unit 2372 are the same as those in Example 1 or Example 3, the description thereof is omitted. The AE unit 2371 is added with a function of executing a process of notifying the AF unit 2372 whether the exposure adjustment executed after the adjustment reference area is changed is completed with respect to the AE unit 172 in Example 1. In the AF unit 2372, a function of controlling not to execute the autofocus adjustment until the exposure adjustment is completed is added with respect to the AF unit 1472 in Example 3 when the adjustment reference area is changed. Hereinafter, the detailed processing flow will be described.

[0078] FIG. 24 is a flowchart of the process performed by the adjustment unit 2370 when the adjustment reference area is changed. It is assumed that the autofocus process is always executed by the AF unit 2372 before the process of FIG. 24 starts (that is, in the normal state).

[0079] In S2401, the AF unit 2372 stops the autofocus function. In S2402, the exposure adjustment value notified from the AE setting management unit 171 to the AE unit 2371 and the AF setting value notified from the AF setting management unit 1471 to the AF unit 2372 are changed to those of the new crop area. In S2403, the AE unit 2371 executes exposure adjustment with the exposure adjustment value of the new crop area. In S2404, it waits for the exposure adjustment to be completed, and when it is completed, it proceeds to S2405. In S2405, the AF unit 2372 starts the autofocus function with the AF setting value of the new crop area.

[0080] By controlling as described above, it is possible to avoid an error caused by executing autofocus in an inappropriate exposure adjustment state. Note that the same modifications as in Example 3 are possible.

[0081] <Example 5> Next, Example 5 of the present invention will be described. Example 3 was an example of an imaging system composed of the configurations of an imaging device and a controller device, while Example 5 is an example when the imaging system is configured by the imaging device alone.

[0082] FIG. 25 is a diagram showing the configuration of the imaging device 1 in Example 5. The differences from the imaging device 1 in FIG. 14 of Example 3 are that the camera communication unit 180 is eliminated, the selection unit 230 is added, and the internal configuration of the image processing unit 2530 is changed. The selection unit 230 includes an operation input unit 231, a setting screen control unit 232, and a display unit 233. Since the others are the same as those in Example 3, the description thereof will be omitted.

[0083] The cutout unit 2531 is the same as the cutout unit 131 in that it can generate a video signal obtained by cutting out an arbitrary area from the captured video, but is different in that the output destination is not only the output unit 140 but also the display unit 233 described later. The output video to the display unit 233 can also be selected from the entire area, the crop 1 area, and the crop 2 area. The operation input unit 231 is an interface that receives operations from the user and has operation members such as a keypad and a touch panel. The setting screen control unit 232 creates a setting reception screen presented to the user, determines what settings have been made, and notifies the crop area setting unit 150, the allocation setting unit 160, and the AF setting management unit 1471 of new user setting values according to the set contents. The display unit 233 superimposes and displays the setting screen generated by the setting screen control unit 232 based on the video output from the cutout unit 2531. The display unit 233 and the operation input unit 231 may be configured by a touch panel display.

[0084] The crop processing in Example 5 will be described. Similar to Example 3, the selection unit 230 can display a crop setting screen as shown in FIG. 16, and the user performs crop setting operations on this screen. FIG. 26 shows an example of a video captured by the imaging device 1. The solid line 2610 represents the entire screen area captured by the imaging unit 120, and the dashed lines 2611 and 2612 represent the areas of Crop 1 and Crop 2, respectively. The user can specify an arbitrary cutout size and position using the selection unit 230. The frame 2613 represents an active AF frame, and in autofocus, it is adjusted so that the subject within the frame is in focus. Note that the setting value of the AF frame in the area set by the adjustment reference area selection item 26 is used for the active AF frame 2613. The crop setting screen 1620 is displayed by pressing a menu key (not shown), and the settings for each item are made by touch operations or a cross key (not shown). The output unit A assignment setting items 22 to the adjustment reference area selection item 26 can be input or selected by a keypad, touch operations, or the like.

[0085] The flow of the settings for the AF setting item 1627 when Crop 1 is selected and the AF setting item 1628 when Crop 2 is selected will be described with reference to FIGS. 27 to 29.

[0086] FIG. 27 shows the AF setting screen 2720 when Crop 1 is selected. When the AF setting item 1627 when Crop 1 is selected on the crop setting screen 1620 in FIG. 16 is selected, the screen transitions to the AF setting screen 2720 when Crop 1 is selected. The AF setting screen 2720 when Crop 1 is selected has a menu cursor 2721 representing the currently selected item, an AF frame setting item 2722, an AF frame position item 2723, and an AF frame position adjustment item 2724. The AF frame setting item 2722 is an item for determining the size of the AF frame that becomes the AF target area, and can be selected from the entire Crop 1 area, a large frame, and a small frame. Select. The AF frame position item 2723 is an item that determines the center position of the AF frame, and can be selected from the crop center and variable. The AF frame position adjustment item 2724 is a setting for adjusting the center position when the AF frame position is variable. Touching this item will transition to the AF frame position adjustment screen in Fig. 28. The AF frame position adjustment screen has the cut-out video 2811 of the crop 1 area and the crop 1 AF frame 2813. Currently, since the adjustment reference area is set to crop 1, the crop 1 AF frame 2813 is active, and AF adjustment is performed to focus on the face of the man existing within this frame. The user can move the crop 1 AF frame 2813 by touching any location within this screen. Also, since the crop 1 AF frame 2813 is currently active, AF is executed within that area after movement.

[0087] On the other hand, regarding crop 2, although not shown in the illustration, an AF setting screen is prepared when crop 2 is selected. Selecting the AF setting item 1628 when crop 2 is selected on the crop setting screen 1620 will cause a screen transition to the AF setting screen when crop 2 is selected. Similarly, touching the AF frame position adjustment when the AF frame position is variable will transition to the AF frame position adjustment screen in Fig. 29. Fig. 29 has the cut-out video 2912 of the crop 2 area and the crop 2 AF frame 2914. Currently, since the adjustment reference area is set to crop 1, the crop 2 AF frame 2914 is not active, and AF is not performed on the woman within the frame. The user can move the crop 2 AF frame 2914 by touching any location within this screen. Currently, the crop 2 AF frame 2914 is not active, but if the adjustment reference area is changed to crop 2, the crop 2 AF frame 2914 immediately becomes active, and AF is executed within that area. Note that the active AF frame 2813 and the inactive AF frame 2914 may be made visually distinguishable by different colors, lines, shapes, etc.

[0088] As described above, the present invention can also be implemented with a single imaging device. Note that in the case of the configuration of a single imaging device, the same modifications as in Embodiments 1 to 4 are possible.

[0089] As described above, the present invention has been described in detail based on its preferred embodiments. However, the present invention is not limited to these specific embodiments, and various forms within the scope not departing from the gist of the present invention are also included in the present invention. Some of the above-described embodiments may be appropriately combined.

[0090] The present invention can also be realized by supplying a program that realizes one or more functions of the above-described 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. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

[0091] The disclosure of this specification includes the following configurations, methods, and programs.

[0092] [Configuration 1] Imaging means, Output means having a plurality of output units capable of outputting an output video to the outside based on the original video captured by the imaging means, First setting means for setting regions of a plurality of output videos output from the plurality of output units from the original video, the first setting means being capable of setting different regions as the regions of the plurality of output videos, Second setting means for setting individual setting values for each region of the plurality of output videos, Adjusting means for adjusting the entire original video using the setting value set for a first region among the regions of the plurality of output videos, An imaging system comprising:

[0093] [Configuration 2] Further having selection means for allowing a user to select the first region from among the regions of the plurality of output videos, The imaging system according to Configuration 1.

[0094] [Configuration 3] Having selection means for allowing a user to select a first output unit from among the plurality of output units, The first area is an area of the output video output from the first output unit selected by the user. The imaging system according to Configuration 1.

[0095] [Configuration 4] The set value includes an exposure correction value used for adjusting exposure. The adjustment means adjusts the exposure of the imaging means using a first exposure correction value set for the first area. The imaging system according to any one of Configurations 1 to 3.

[0096] [Configuration 5] Based on the first exposure correction value, the adjustment means performs adjustment of one or more of the aperture, shutter speed, and ISO sensitivity on the imaging means, thereby adjusting the exposure during shooting of the original video by the imaging means. The imaging system according to Configuration 4.

[0097] [Configuration 6] The image processing means further includes an image processing means for adjusting the exposure of the output video of the second area by performing image processing on the video in the second area based on a second exposure correction value set for a second area different from the first area among the areas of the plurality of output videos. The imaging system according to Configuration 5.

[0098] [Configuration 7] The image processing means adjusts the brightness of the video in the second area so that the brightness of the output video of the second area approaches the brightness of the video shot when the exposure of the imaging means is adjusted by the adjustment means based on the second exposure correction value. The imaging system according to Configuration 6.

[0099] [Configuration 8] The image processing means determines the amount of brightness adjustment for the video in the second area based on the first exposure correction value and the second exposure correction value. The imaging system according to Configuration 7.

[0100] [Configuration 9] Before the adjustment means adjusts the imaging means based on the first exposure correction value, the image processing means performs image processing based on the first exposure correction value on the original video captured by the imaging means, thereby generating a video for confirming the adjustment result. The imaging system according to any one of Configurations 6 to 8.

[0101] [Configuration 10] It further has a recording means for recording video data based on the original video captured by the imaging means on a medium. During the recording of the video data by the recording means, the adjustment means does not adjust the exposure of the imaging means based on the first exposure correction value. The imaging system according to any one of Configurations 4 to 9.

[0102] [Configuration 11] When the recording means records the video data in the third area in the original video on the medium, the exposure of the imaging means is adjusted based on a third exposure correction value preset for the third area. The imaging system according to Configuration 10.

[0103] [Configuration 12] The set value includes an AF set value used for adjusting autofocus. The adjustment means adjusts the autofocus of the imaging means using the first AF set value set for the first area. The imaging system according to any one of Configurations 1 to 11.

[0104] [Configuration 13] The AF set value includes information specifying the size and position of the AF frame. The imaging system according to Configuration 12.

[0105] [Configuration 14] It further has a recording means for recording video data based on the original video captured by the imaging means on a medium. During the recording of the video data by the recording means, the adjustment means does not perform the adjustment of the autofocus of the imaging means based on the first AF setting value. The imaging system according to Configuration 12 or 13.

[0106] [Configuration 15] When the recording means records the video data in the third area in the original video on the medium, the autofocus of the imaging means is adjusted based on the AF setting value preset for the third area. The imaging system according to Configuration 14.

[0107] [Configuration 16] The setting value includes an exposure correction value used for adjusting exposure and an AF setting value used for adjusting autofocus. The adjustment means adjusts the exposure of the imaging means using the first exposure correction value set for the first area, and adjusts the autofocus of the imaging means using the first AF setting value set for the first area. The imaging system according to any one of Configurations 1 to 15.

[0108] [Configuration 17] After stopping the autofocus of the imaging means, the adjustment means performs the exposure adjustment based on the first exposure correction value, and after the exposure adjustment is completed, resumes the autofocus using the first AF setting value. The imaging system according to Configuration 16.

[0109] [Configuration 18] The setting value includes a color correction parameter used for color correction. The imaging system further includes an image processing means for adjusting the color of the output video of the first area by performing image processing on the original video in the first area using the color correction parameter set for the first area. The imaging system according to any one of Configurations 1 to 17.

Explanation of Signs

[0110] 1: Imaging device 2: Controller device 120: Imaging unit (imaging means) 140: Output unit (output means) 210, 230: Selection unit (selection means, first setting means, second setting means) 170, 1470, 2370: Adjustment unit (adjustment means)

Claims

1. An imaging means; Output means having a plurality of output units capable of outputting an output video externally based on the original video photographed by the imaging means; A first setting means for setting regions of a plurality of output videos output from the plurality of output units from the original video, the first setting means being capable of setting mutually different regions as the regions of the plurality of output videos; A second setting means for setting individual setting values for each of the regions of the plurality of output videos; Adjusting means for adjusting the entire original video using the setting value set for a first region among the regions of the plurality of output videos; An imaging system comprising the above.

2. Further comprising selection means for allowing a user to select the first region from among the regions of the plurality of output videos, The imaging system according to claim 1.

3. Having selection means for allowing a user to select a first output unit from among the plurality of output units, The first region is the region of the output video output from the first output unit selected by the user, The imaging system according to claim 1.

4. The setting value includes an exposure correction value used for adjusting exposure, The adjusting means adjusts the exposure of the imaging means using the first exposure correction value set for the first region, The imaging system according to any one of claims 1 to 3.

5. The adjusting means performs adjustment of one or more of an aperture, a shutter speed, and an ISO sensitivity on the imaging means based on the first exposure correction value, thereby adjusting the exposure at the time of photographing the original video by the imaging means, The imaging system according to claim 4.

6. Further comprising image processing means for adjusting the exposure of the output video of the second region by performing image processing on the video within the second region based on a second exposure correction value set for a second region different from the first region among the regions of the plurality of output videos, The imaging system according to claim 5.

7. The image processing means adjusts the brightness of the video within the second region so that the brightness of the output video of the second region approaches the brightness of the video photographed when the exposure of the imaging means is adjusted by the adjusting means based on the second exposure correction value, The imaging system according to claim 6.

8. The image processing means determines the amount of brightness adjustment for the video within the second region based on the first exposure correction value and the second exposure correction value, The imaging system according to claim 7.

9. Before the adjustment means adjusts the imaging means based on the first exposure correction value, the image processing means performs image processing based on the first exposure correction value on the original video captured by the imaging means, thereby generating a video for confirming the adjustment result. The imaging system according to claim 6.

10. The imaging system further includes a recording means for recording video data based on the original video captured by the imaging means on a medium. During the recording of the video data by the recording means, the adjustment means does not adjust the exposure of the imaging means based on the first exposure correction value. The imaging system according to claim 4.

11. When the recording means records the video data in the third area in the original video on the medium, the exposure of the imaging means is adjusted based on a third exposure correction value preset for the third area. The imaging system according to claim 10.

12. The set value includes an AF set value used for adjusting autofocus. The adjustment means adjusts the autofocus of the imaging means using the first AF set value set for the first area. The imaging system according to any one of claims 1 to 3.

13. The AF set value includes information specifying the size and position of the AF frame. The imaging system according to claim 12.

14. The imaging system further includes a recording means for recording video data based on the original video captured by the imaging means on a medium. During the recording of the video data by the recording means, the adjustment means does not adjust the autofocus of the imaging means based on the first AF set value. The imaging system according to claim 12.

15. When the recording means records the video data in the third area in the original video on the medium, the autofocus of the imaging means is adjusted based on an AF set value preset for the third area. The imaging system according to claim 14.

16. The set value includes an exposure correction value used for adjusting exposure and an AF set value used for adjusting autofocus. The adjustment means adjusts the exposure of the imaging means using the first exposure correction value set for the first area and adjusts the autofocus of the imaging means using the first AF set value set for the first area. The imaging system according to any one of claims 1 to 3.

17. The adjustment means stops the autofocus of the imaging means and then performs exposure adjustment based on the first exposure correction value, and after the exposure adjustment is completed, resumes autofocus using the first AF setting value. The imaging system according to claim 16.

18. The set value includes a color correction parameter used for color correction. The imaging system further includes image processing means for adjusting the color tone of the output video of the first region by performing image processing on the original video within the first region using the color correction parameter set for the first region. The imaging system according to any one of claims 1 to 3.

Images