JP2013026656A - Photographing device, photographing method, and photographing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographing device capable of displaying a clear photographed image while consumption power required for emitting illumination light is reduced by emitting illumination light for each area of selected photographic range and displaying photographed images of the areas in a predetermined order.SOLUTION: An image processing part 114 divides an image formed on an image sensor 103 into plural areas by control of a control part 111 and displays a divided area on a display part 115 in a predetermined order. An LED driver 116 can execute switching processing of a lighting position of near-infrared LED 102 in synchronization with area display switching of the display part 115 by the control of the control part 111. In this way, it is possible to efficiently emit illumination light to a photographing target position corresponding to an area displayed in the display part 115.

Description

  The present invention relates to a photographing apparatus, a photographing method, and a photographing program that selectively illuminate and photograph an arbitrary area within a photographing range.

  2. Description of the Related Art Conventionally, techniques for photographing a bright subject image by irradiating light toward a subject with insufficient illuminance have been proposed (see, for example, Patent Documents 1 and 2).

JP 2004-220147 A JP 2007-235416 A

  In the surveillance camera described in Patent Document 1, the output of the projector is increased in advance to ensure a sufficient luminous flux density so that a wide area can be illuminated. However, with this surveillance camera, when attempting to obtain a bright image, it is necessary to always irradiate light with sufficient brightness over the entire photographing range. For this reason, an increase in power consumption is unavoidable in order to ensure the necessary luminous flux density. Further, in this monitoring camera, since the light projection angle of the projector is fixed, there is a problem that the amount of irradiation light is insufficient depending on the position of the subject.

  Further, in the sensor camera described in Patent Document 2, the illumination light irradiation range can be variably set so that the same range as the photographing field angle can be illuminated. However, this sensor camera irradiates the detected moving subject with spot light, so the illumination range is narrower than the shootable range, and the entire captured image cannot be displayed brightly and clearly. There is a problem.

  In order to eliminate the above-described problems caused by the conventional technology, the present invention irradiates illumination light by irradiating illumination light for each area where a photographing range is selected and displaying captured images in the areas in a predetermined order. It is an object of the present invention to provide a photographing apparatus, a photographing method, and a photographing program that can reduce power consumption required for displaying images and display clear photographed images.

  In order to solve the above-described problems and achieve the object, a photographing apparatus according to the present invention is photographed by a control means for controlling processing and operation of the entire apparatus, a photographing means for photographing a predetermined area, and the photographing means. Display means for displaying the image, illumination means for irradiating the predetermined area with illumination light, and control of the control means to divide the image photographed by the photographing means into a plurality of areas. An image processing means for extracting a predetermined area from the display area and displaying the extracted area on the display means; and under the control of the control means, the image processing means positions the photographing target position corresponding to the predetermined area displayed on the display means. And illumination control means for controlling the illumination means to irradiate the illumination light.

  Furthermore, the imaging apparatus according to the present invention is characterized in that, in the invention, the imaging unit includes an optical system capable of simultaneously imaging the entire predetermined area.

  Furthermore, in the imaging apparatus according to the present invention, in the above invention, the illumination means includes a plurality of near infrared LEDs, and the plurality of near infrared LEDs emit all of the predetermined region when emitting illumination light simultaneously. It is arranged so that it can illuminate at a certain illuminance or more, and the illumination control means is sufficient to illuminate a photographing target position corresponding to a predetermined area displayed on the display means under the control of the control means. Some of the near-infrared LEDs that can emit light are turned on.

  Furthermore, in the photographing apparatus according to the present invention, in the invention, the image processing means causes the display means to place any one or more of the plurality of areas in a predetermined order and time under the control of the control means. The illumination control means is controlled by the control means so that the illumination control means is synchronized with the order and time of the areas displayed on the display means and is directed to the photographing target position corresponding to the area displayed on the display means. The partial near-infrared LEDs that are turned on to irradiate illumination light are switched.

  Furthermore, in the photographing apparatus according to the present invention, in the invention, the control unit sets an appropriate illuminance of an area displayed on the display unit to a maximum illuminance and a minimum illuminance set in advance for an image by the photographing unit. And determining the amount of light of the near infrared LED by controlling the illumination control means when the illuminance deviates from the range of the threshold.

  The image capturing method according to the present invention includes a control unit that controls processing and operation of the entire apparatus, an image capturing unit that captures a predetermined area, a display unit that displays an image captured by the image capturing unit, and the predetermined unit. A plurality of near-infrared LEDs for irradiating illumination light to the area, an image processing means for performing predetermined image processing on an image photographed by the photographing means under the control of the control means, and a control of the control means And an illumination control means for controlling lighting of the plurality of near-infrared LEDs, wherein the image processing means is controlled by the imaging means under the control of the control means. The photographed image is divided into a plurality of areas, the divided areas are displayed on the display means in a predetermined order and time, and the illumination control is controlled by the control means. Means close to the part that is turned on in order to irradiate illumination light toward the photographing target position corresponding to the divided area in synchronization with the order and time of the divided areas displayed in the divided area display step; In a divided area illumination step for switching infrared LEDs, an image illuminance determination step in which the control means determines whether or not the illuminance of the image displayed in the divided area display step is appropriate, and an illuminance of the image in the image illuminance determination step. A light amount adjustment step of adjusting the light amount of the near-infrared LED lit in the divided area illumination step so that the illuminance of the image becomes appropriate by the control of the control means when determined to be inappropriate. It is characterized by including these.

  Furthermore, in the imaging method according to the present invention, in the above invention, the image illuminance determination step determines a threshold value of the maximum illuminance and the minimum illuminance necessary for obtaining a clear image, and the control means includes the divided area. When an image of each divided area is displayed in the display step, it is determined whether or not the illuminance of each divided area in the image photographed by the photographing unit deviates from the threshold range. .

  A shooting program according to the present invention causes a computer to execute the shooting method.

  According to the present invention, by illuminating illumination light for each area for which an imaging range is selected and displaying captured images of the areas in a predetermined order, the power consumption required for illuminating the illumination light can be reduced. Thus, it is possible to display a clear photographed image.

1 is a front view of a photographing apparatus according to a first embodiment. 1 is a side view of a photographing apparatus according to a first embodiment. 1 is a block diagram illustrating a functional configuration of a photographing apparatus according to a first embodiment. It is a figure for demonstrating the process of the image process part. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging device 100, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging device 100, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging device 100, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging device 100, and the position of the area irradiated by this. 3 is a flowchart illustrating a procedure of imaging processing in the imaging device 100. It is a front view of the imaging system concerning Embodiment 2. FIG. It is a side view of the imaging system concerning Embodiment 2. It is a block diagram which shows the functional structure of the imaging | photography system concerning Embodiment 2. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging | photography system 900, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging | photography system 900, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging | photography system 900, and the position of the area irradiated by this. It is a figure which shows the relationship between the switching of the lighting position of near infrared LED102 in the imaging | photography system 900, and the position of the area irradiated by this.

  Exemplary embodiments of a photographing apparatus, a photographing method, and a photographing program according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1-1 is a front view of the photographing apparatus according to the first embodiment. FIG. 1-2 is a side view of the photographing apparatus according to the first embodiment. A camera lens 101 is provided at the center of the front surface 100 a of the photographing apparatus 100. A plurality of near-infrared LEDs 102 are arranged around the camera lens 101 on the front surface 100a of the photographing apparatus 100. Further, near-infrared LEDs 102 are also arranged on the front side 100a side of the upper side surface 100b of the photographing apparatus 100, the front side 100a side of the lower side surface 100c, the front side 100a side of the left side surface 100d, and the front side 100a side of the right side surface 100e. . The photographing apparatus 100 has an angle of view of about 180 °. Further, when all of the plurality of near-infrared LEDs 102 are turned on, a range that is slightly wider than the angle of view of the photographing apparatus 100 can be illuminated with a certain level of illuminance.

  FIG. 2 is a block diagram of a functional configuration of the imaging apparatus according to the first embodiment. The photographing apparatus 100 includes a control unit 111, a storage unit 112, a photographing unit 113, an image processing unit 114, a display unit 115, an LED driver 116, and a plurality of near infrared LEDs 102.

  Processing and operation of each functional unit of the imaging apparatus 100 are executed under the control of the control unit 111. The control unit 111 reads a predetermined program, data, and the like from the storage unit 112 as needed, and causes each functional unit to execute processing. Further, data generated during the process is stored in the storage unit 112. In particular, in the processing of the image processing unit 114 and the LED driver 116, the control unit 111 reads a predetermined image processing program from the storage unit 112, and causes the image processing unit 114 and the LED driver 116 to execute processing specified in the program. This is possible. The control unit 111, the image processing unit 114, and the LED driver 116 can realize their functions by causing the CPU to execute predetermined programs. The storage unit 112 can realize its function by a memory that can read and write programs, data, and the like as needed.

  The photographing unit 113 includes a camera lens 101 and an image sensor 103 and photographs a subject. The image sensor 103 converts the subject image formed by the camera lens 101 into a video signal.

  The image processing unit 114 performs predetermined image processing on the video signal transmitted from the image sensor 103 under the control of the control unit 111 (details will be described later). The display unit 115 displays the video signal sent from the image processing unit 114 as an image. The LED driver 116 turns on or off the near-infrared LED 102 under the control of the control unit 111.

  Here, the processing of the image processing unit 114 will be described in detail. The image processing unit 114 divides the image formed on the image sensor 103 into a plurality of areas under the control of the control unit 111, and displays the divided one area on the display unit 115 in a predetermined order.

  FIG. 3 is a diagram for explaining the processing of the image processing unit 114. FIG. 3 shows an example in which the maximum photographing range 300 of the photographing unit 113 formed on the image sensor 103 is divided into a plurality of areas, which is the first processing performed first by the image processing unit 114. The numbers “1” to “9” shown in the drawing are given for convenience in order to indicate the divided areas.

  Next, the image processing unit 114 displays the divided areas on the display unit 115 in a predetermined order. For example, the area “1” to the area “9” may be repeatedly displayed in numerical order, or instead of displaying all the divided areas, the area “1” → the area “3” → the area “9” → Only some of the areas may be repeatedly displayed in the order of the area “7”.

  Further, as if panning, it may be repeatedly displayed in a predetermined horizontal row direction of the maximum photographing range 300, for example, in the order of area “4” → area “5” → area “6”, or tilting may be performed. In addition, it may be repeatedly displayed in a predetermined vertical line direction of the maximum photographing range 300, for example, in the order of area “2” → area “5” → area “8”.

  Furthermore, it is possible to display in a predetermined oblique direction of the maximum photographing range 300, for example, in the order of area “1” → area “5” → area “9”. A plurality of areas can be displayed simultaneously, or only one specific area can be displayed.

  Further, when each area is displayed on the display unit 115, all the areas may be displayed at the same magnification, or only a predetermined area may be enlarged or reduced at a different magnification. Furthermore, when displaying each area on the display unit 115, each area can be displayed at the same time, or the display time can be changed by a predetermined area. What is necessary is just to set the selection order of the area to display, the display magnification of an area, and the display time for every use of the imaging device 100.

  In this embodiment, the preset function including the above-described contents can be realized by previously incorporating the contents of the image processing optimal for the use of the photographing apparatus 100 into the image processing program. Although FIG. 3 shows an example in which the area is divided into nine areas, the number of areas to be divided is not particularly limited, and may be arbitrarily set according to the use of the photographing apparatus 100.

  Next, processing of the LED driver 116 will be described. Switching of the lighting position of the near infrared LED 102 is executed by the LED driver 116 under the control of the control unit 111. As described above, the order of areas to be displayed, the display magnification of the areas, and the display time are incorporated in the image processing program. Therefore, in the process of executing the image processing program by the control unit 111, the switching process of the lighting position of the near infrared LED 102 by the LED driver 116 is controlled in accordance with the selection order of the areas to be displayed and the display time of the areas. Thus, the switching process of the lighting position of the near-infrared LED 102 can be executed in synchronization with the display switching of the area to the display unit 115. By doing in this way, illumination light can be irradiated to the imaging | photography object position corresponding to the area displayed on the display part 115. FIG.

  Hereinafter, the relationship between the switching of the lighting position of the near-infrared LED 102 and the position of the illuminated area will be described with specific examples.

  4 to 7 are diagrams showing the relationship between switching of the lighting position of the near infrared LED 102 in the photographing apparatus 100 and the position of the illuminated area. In addition, the irradiation area in the figure shows a state in which an image formed on the image sensor 103 is viewed from the subject side.

  First, as shown in FIG. 4, the maximum imaging range 300 is set by turning on the near-infrared LEDs 102 arranged at the upper left portion of the front surface 100a, the left portion of the upper side surface 100b, and the upper portion of the left side surface 100d. It is possible to irradiate the entire shooting target position corresponding to the area “1”. Although not particularly illustrated, the irradiation to the photographing target position corresponding to the area “3” is arranged near the upper right part of the front surface 100a, the right part of the upper side surface 100b, and the upper part of the right side surface 100e of the photographing apparatus 100. This is possible by turning on the infrared LED 102.

  To irradiate the imaging target position corresponding to the area “9”, the near-infrared LEDs 102 arranged at the lower right portion of the front surface 100a, the right portion of the lower side surface 100c, and the lower portion of the right side surface 100e of the imaging device 100 are turned on. Will be possible. To irradiate the imaging target position corresponding to the area “7”, the near-infrared LEDs 102 arranged at the lower left part of the front surface 100a, the left part of the lower side surface 100c, and the lower part of the left side surface 100d of the imaging device 100 are turned on. Will be possible.

  As shown in FIG. 5, by turning on near-infrared LEDs 102 arranged in the upper central portion of the front surface 100a of the photographing apparatus 100 and the central portion near the front surface 100a of the upper side surface 100b, the area “2” in the maximum photographing range 300 is displayed. The whole photographing target position corresponding to "can be irradiated. Further, although not shown, the irradiation to the imaging target position corresponding to the area “8” is arranged in the near-infrared area disposed in the lower central part of the front surface 100a of the imaging apparatus 100 and the central part near the front surface 100a of the lower side surface 100c. This is made possible by turning on the LED 102.

  As shown in FIG. 6, by turning on the near-infrared LED 102 arranged at the left central portion of the front surface 100a of the photographing apparatus 100 and the central portion near the front surface 100a of the left side surface 100d, the area “4” in the maximum photographing range 300 is displayed. The whole photographing target position corresponding to "can be irradiated. Although not shown, near-infrared LEDs 102 arranged in the right central portion of the front surface 100a of the photographing apparatus 100 and the central portion near the front surface 100a of the right side surface 100e are irradiated to the photographing target position corresponding to the area “6”. It becomes possible by lighting up.

  As shown in FIG. 7, by illuminating all near-infrared LEDs 102 arranged on the front surface 100 a of the imaging apparatus 100, the entire imaging target position corresponding to the area “5” in the maximum imaging range 300 is irradiated. Can do.

  As described above, the irradiation to the photographing target position corresponding to each area is performed in the process in which the control unit 111 executes the image processing program in accordance with the selection order of the areas to be displayed and the display time of the areas. By controlling the switching process of the lighting position of the near-infrared LED 102 by 116, it is possible to perform it in synchronization with the display switching of the area on the display unit 115. At this time, in order to obtain a clear image, it is necessary to optimize the amount of light emitted from the near-infrared LED 102 so that the amount of light irradiated to the photographing target position corresponding to each area does not become excessive or insufficient. In addition, depending on the environment around the subject, light other than the irradiation light from the near-infrared LED 102 may hit a specific area, and the brightness may be different for each shooting target position corresponding to each area. It is possible.

  Therefore, in this embodiment, every time an image of each area is displayed on the display unit 115, the control unit 111 detects the illuminance of the image of the area formed on the image sensor 103, and obtains an appropriate illuminance. The LED driver 116 is controlled so that the amount of light (brightness) of the near-infrared LED 102 is adjusted.

  Specifically, threshold values for the maximum illuminance and the minimum illuminance necessary for obtaining a clear image are set, and the control unit 111 connects to the image sensor 103 when displaying the image of each area on the display unit 115. It is determined whether or not the illuminance of the image of the imaged area is out of the threshold range. When the illuminance is out of the threshold range, the control unit 111 determines that the illuminance of the image of the area imaged on the image sensor 103 is within the threshold range so that good illuminance is obtained. The light quantity (brightness) of the near-infrared LED 102 is adjusted by controlling the LED driver 116.

  Next, a procedure of photographing processing in the photographing apparatus according to Embodiment 1 will be described. FIG. 8 is a flowchart showing the procedure of the photographing process in the photographing apparatus 100.

  In the flowchart shown in FIG. 8, first, when the apparatus is turned on, it enters a photographing standby state (step S801). At this time, the control unit 111 reads the image processing program from the storage unit 112 and grasps the divided areas, the order of the areas displayed on the display unit 115, the display time, and the like. Thereby, the illumination order and time to the imaging target position corresponding to each area are also grasped. At the same time, the LED driver 116 performs test lighting of the near-infrared LED 102 under the control of the control unit 111.

  Next, it is determined whether the near-infrared LED 102 has been lit stably (step S802). This determination is performed by the control unit 111. Here, when the near-infrared LED 102 is lit stably (step S802: Yes), the process proceeds to step S803. On the other hand, when the lighting of the near-infrared LED 102 is unstable (step S802: No), the process of step S802 is executed again.

  When the near-infrared LED 102 is stably lit in step S802 (step S802: Yes), the divided areas within the maximum photographing range are displayed in a predetermined order and time (step S803). Specifically, the control unit 111 controls the image processing unit 114 to divide the image of the maximum shooting range imaged on the image sensor 103 into a plurality of areas, and each divided area is defined by the image processing program. The information is displayed on the display unit 115 in a predetermined order and time. When displaying the divided areas, the display time, the magnification of the display image, and the like can be set differently for each divided area.

  Subsequently, the photographing target positions corresponding to the divided areas within the maximum photographing range are illuminated in a predetermined order and time (step S804). Specifically, the control unit 111 controls the LED driver 116 to turn on the near-infrared LED 102 that illuminates the imaging target position corresponding to the divided area displayed on the display unit 115 in the process of step S803. This process is performed in synchronization with the process of step S803. The method of lighting the near-infrared LED 102 is as described with reference to FIGS. Note that the lighting order and time for the shooting target position corresponding to each area follow the display order and time of each area incorporated in the image processing program.

  Subsequently, it is determined whether or not the illuminance of the image displayed on the display unit 115 is appropriate (step S805). Specifically, threshold values for the maximum illuminance and the minimum illuminance necessary for obtaining a clear image are set, and the control unit 111 connects to the image sensor 103 when displaying the image of each area on the display unit 115. It is determined whether the illuminance of the image of the imaged area deviates from the threshold range. If the illuminance of the image is appropriate (step S805: Yes), the process proceeds to step S807.

  On the other hand, if the illuminance of the image is not appropriate in step S805 (step S805: No), the light amount (brightness) of the near infrared LED 102 is adjusted (step S806). Specifically, the control unit 111 controls the LED driver 116 so that good illuminance is obtained (so that the illuminance of the image of the area imaged on the image sensor 103 falls within the threshold value). Then, the light amount (brightness) of the near infrared LED 102 is changed.

  Subsequently, it is determined whether or not the photographing process has been completed (step S807). Specifically, the control unit 111 determines whether all the processes defined in the image program have been completed (or an end instruction has been received from the user). Here, when all the photographing processes are not completed (step S807: No), the process returns to step S803 again. On the other hand, when all the photographing processes are finished (step S807: Yes), all the processes are finished. The termination instruction from the user means a case where the apparatus is turned off or a means for ending a process provided in the apparatus is exercised.

  Note that the above steps (imaging methods) can be realized by executing software (programs) acquired via a network or various storage media using a CPU, a processor, or the like.

  By performing the processing as described above, the image capturing apparatus 100 according to the first embodiment allows the near red color provided in the apparatus to display the image for each area by dividing the maximum image capturing range into a plurality of areas. By irradiating a part of the outer LED 102 to the photographing target position corresponding to the area, it is possible to reduce power consumption necessary for lighting the near-infrared LED 102. As shown in the first embodiment, when the maximum photographing range is divided into nine areas and images of the respective areas are sequentially displayed, the power consumption is compared to the case where the near-infrared LED 102 is always lit. Can be reduced to approximately 1/9. Furthermore, in the photographing apparatus 100 according to the first embodiment, an appropriate amount of irradiation light can be set for each displayed area, so that a clear image can be displayed with low power consumption.

(Embodiment 2)
In the first embodiment, an example of a photographing apparatus in which a camera and a projector are integrated is shown. In the second embodiment, an example of an imaging system in which a camera and a projector are separated and shown.

  FIG. 9-1 is a front view of the imaging system according to the second embodiment. FIG. 9B is a side view of the imaging system according to the second embodiment. The photographing system 900 includes a camera 910 and a projector 920. A camera lens 101 is disposed almost at the center of the front surface 910a of the camera 910. A plurality of near-infrared LEDs 102 are arranged around the front surface 920a of the projector 920.

  The camera 910 is disposed on the front side of the projector 920, and in this state, a plurality of near-infrared LEDs 102 are positioned around the camera 910 in a double manner. The camera 910 has an angle of view of about 180 °. Further, when all of the plurality of near-infrared LEDs 102 are turned on, a range slightly wider than the angle of view of the camera 910 can be illuminated.

  FIG. 10 is a block diagram of a functional configuration of the imaging system according to the second embodiment. The photographing system 900 includes a camera 910 and a projector 920. The camera 910 includes a camera control unit 911, a storage unit 112, a photographing unit 113, an image processing unit 114, and a display unit 115. The projector 920 includes a projector control unit 921, an LED driver 116, and a plurality of near infrared LEDs 102.

  Processing and operation of each functional unit of the camera 910 are executed under the control of the camera control unit 911. The camera control unit 911 reads a predetermined program, data, and the like from the storage unit 112 as needed, and causes each function unit to execute processing. Further, data generated during the process is stored in the storage unit 112. In particular, the processing of the image processing unit 114 can be performed when the camera control unit 911 reads a predetermined image processing program from the storage unit 112 and causes the image processing unit 114 to execute processing defined in the program.

  The camera control unit 911 and the image processing unit 114 can realize their functions by causing the CPU to execute predetermined programs. Since the functions of the storage unit 112, the image capturing unit 113, the image processing unit 114, and the display unit 115 are the same as those in the first embodiment, description thereof is omitted.

  Further, processing and operation of each functional unit of the projector 920 are executed under the control of the projector controller 921. The projector control unit 921 controls the LED driver 116 in synchronization with the operation of the camera control unit 911 to turn on or off the near infrared LED 102. The projector control unit 921 and the LED driver 116 can realize their functions by causing the CPU to execute predetermined programs. The function of the LED driver 116 is the same as that of the first embodiment.

  An imaging system 900 according to Embodiment 2 includes a plurality of control units. However, an image processing program similar to that of the first embodiment is executed by the camera control unit 911, and the projector control unit 921 controls the LED driver 116 so as to synchronize with the operation of the camera control unit 911. The same processing procedure as that of the photographing apparatus 100 shown in the first embodiment can be realized to obtain the same effect. For this reason, description of the specific processing of the imaging system 900 of Embodiment 2 is omitted. Below, only the relationship between the switching of the lighting position of near-infrared LED102 from which an arrangement state differs, and the position of the area irradiated by this is demonstrated.

  FIGS. 11 to 14 are diagrams showing the relationship between switching of the lighting position of the near-infrared LED 102 in the imaging system 900 and the position of the illuminated area. In addition, the irradiation area in the figure shows a state in which an image formed on the image sensor 103 is viewed from the subject side.

  First, as shown in FIG. 11, the entire imaging target position corresponding to the area “1” in the maximum imaging range 300 is turned on by turning on the near-infrared LED 102 disposed in the upper left part of the front surface 920 a of the projector 920. Can be irradiated. Although not shown in particular, irradiation to the photographing target position corresponding to the area “3” can be performed by turning on the near-infrared LED 102 disposed in the upper right part of the front surface 920a of the projector 920. Irradiation to the photographing target position corresponding to the area “9” can be performed by turning on the near-infrared LED 102 disposed in the lower right portion of the front surface 920a of the projector 920. Irradiation to the photographing target position corresponding to the area “7” is enabled by turning on the near-infrared LED 102 disposed in the lower left part of the front surface 920a of the projector 920.

  As shown in FIG. 12, the entire imaging target position corresponding to the area “2” in the maximum imaging range 300 is obtained by turning on the near-infrared LED 102 arranged at the upper approximate center of the front surface 920 a of the projector 920. Can be irradiated. Further, although not shown in the figure, it is possible to irradiate the photographing target position corresponding to the area “8” by turning on the near-infrared LED 102 disposed in the lower center of the front surface 920a of the projector 920. Become.

  As shown in FIG. 13, the entire imaging target position corresponding to the area “4” in the maximum imaging range 300 is obtained by turning on the near-infrared LED 102 disposed at the substantially central portion on the left side of the front surface 920 a of the projector 920. Can be irradiated. Further, although not shown in the figure, the irradiation to the photographing target position corresponding to the area “6” can be performed by turning on the near-infrared LED 102 disposed at the substantially central portion on the right side of the front surface 920a of the projector 920. .

  As shown in FIG. 14, all the near-infrared LEDs 102 inside the front surface 920a of the projector 920 are turned on, so that the entire photographing target position corresponding to the area “5” in the maximum photographing range 300 can be irradiated. .

  As described above, even when the camera 910 and the projector 920 are configured separately, processing for dividing the maximum shooting range 300 into a plurality of areas and displaying an image for each area, and corresponding to each area By synchronizing the process of irradiating the imaging target position, the same process as in the first embodiment can be executed. That is, with respect to the shooting target position corresponding to the selected part of the area within the maximum shooting range, by turning on some of the LEDs and performing concentrated projection, a clear image of the area can be obtained, Power consumption for LED lighting can be reduced.

  As described above, the photographing apparatus, the photographing method, and the photographing program according to the present invention are useful for photographing a subject that requires illumination light, and a particularly favorable effect can be expected when the technique is applied to a surveillance camera.

DESCRIPTION OF SYMBOLS 100 Image pick-up apparatus 100a, 910a, 920a Front surface 100b Upper side surface 100c Lower side surface 100d Left side surface 100e Right side surface 101 Camera lens 102 Near-infrared LED (illumination means)
DESCRIPTION OF SYMBOLS 103 Image sensor 111 Control part 112 Memory | storage part 113 Image pick-up part 114 Image processing part 115 Display part 116 LED driver (illumination control means)
300 Maximum Shooting Range 900 Shooting System 910 Camera 911 Camera Control Unit 920 Projector 921 Projector Control Unit

Claims (8)

Control means for controlling the processing and operation of the entire apparatus;
Photographing means for photographing a predetermined area;
Display means for displaying an image photographed by the photographing means;
Illuminating means for irradiating the predetermined area with illumination light;
Image processing means for dividing the image photographed by the photographing means into a plurality of areas under the control of the control means, extracting a predetermined area from the plurality of divided areas, and displaying it on the display means;
Under the control of the control means, an illumination control means for controlling the illumination means to irradiate illumination light toward a photographing target position corresponding to a predetermined area displayed on the display means by the image processing means;
An imaging apparatus comprising:   The imaging apparatus according to claim 1, wherein the imaging unit includes an optical system capable of simultaneously imaging the entire predetermined area. The illumination means includes a plurality of near-infrared LEDs, and the plurality of near-infrared LEDs are arranged so as to illuminate all of the predetermined region with an illuminance of a certain level or higher when emitting illumination light simultaneously.
The illumination control unit is configured to control the control unit to control the plurality of near-infrared LEDs that can emit a sufficient amount of light to illuminate a photographing target position corresponding to a predetermined area displayed on the display unit. The imaging device according to claim 1, wherein some of the near-infrared LEDs are turned on. The image processing means causes the display means to display any one or more of the plurality of areas in a predetermined order and time under the control of the control means,
The illumination control unit controls the control unit to emit illumination light toward a photographing target position corresponding to the area displayed on the display unit in synchronization with the order and time of the areas displayed on the display unit. The imaging apparatus according to claim 3, wherein the part of the near-infrared LEDs that are turned on for irradiation are switched.   The control means determines an appropriate illuminance of an area displayed on the display means by applying a threshold value that defines a maximum illuminance and a minimum illuminance set in advance for an image by the photographing means, and the illuminance 5. The photographing apparatus according to claim 4, wherein when the value deviates from the range of the threshold value, the illumination control unit is controlled to adjust the light amount of the near-infrared LED. Control means for controlling the processing and operation of the entire apparatus;
Photographing means for photographing a predetermined area;
Display means for displaying an image photographed by the photographing means;
A plurality of near-infrared LEDs that illuminate the predetermined region with illumination light; and
Image processing means for performing predetermined image processing on an image photographed by the photographing means under the control of the control means;
Illumination control means for controlling lighting of the plurality of near-infrared LEDs under the control of the control means;
A photographing method executed in a photographing apparatus comprising:
A divided area display step in which the image processing unit divides the image captured by the imaging unit into a plurality of areas under the control of the control unit, and the divided areas are displayed on the display unit in a predetermined order and time; ,
Under the control of the control means, the illumination control means irradiates illumination light toward the photographing target position corresponding to the divided area in synchronization with the order and time of the divided areas displayed in the divided area display step. A split area illumination process for switching some of the near-infrared LEDs that are lit for
The control means, an image illuminance determination step for determining the suitability of the illuminance of the image displayed by the divided area display step,
When the image illuminance determining step determines that the illuminance of the image is inappropriate, the near red light that is turned on in the divided area illumination step so that the illuminance of the image becomes appropriate by the control of the control means A light amount adjustment step for adjusting the light amount of the outer LED;
A photographing method characterized by comprising: The image illuminance determination step includes
Threshold values for the maximum and minimum illuminance required to obtain a clear image
Whether the illuminance of each divided area in the image photographed by the photographing means deviates from the range of the threshold when the control means displays an image of each divided area in the divided area display step. The imaging method according to claim 6, further comprising:   A shooting program for causing a computer to execute the shooting method according to claim 6 or 7.

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