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CN-122002116-A - System, control method, computer program product, and computer-readable storage medium

CN122002116ACN 122002116 ACN122002116 ACN 122002116ACN-122002116-A

Abstract

The present invention relates to a system, a control method, a computer program product and a computer readable storage medium. The system controls a first flash that irradiates a subject imaged by an imaging device with light. The system includes an information control unit configured to store, in a storage section, positional information about a position of a second flash and setting information of the second flash when an image pickup apparatus is performing image pickup using light emitted from the second flash at a first time, and a transmission unit configured to transmit, to the first flash, information based on the positional information and the setting information stored in the storage section, in a case where the first flash irradiates an object with light at a second time after the first time.

Inventors

  • Gong Qixiang

Assignees

  • 佳能株式会社

Dates

Publication Date
20260508
Application Date
20251103
Priority Date
20241105

Claims (20)

  1. 1. A system that controls a first strobe that irradiates an object imaged by an imaging device with light, the system comprising: An information control unit configured to store, in a storage section, positional information about a position of a second flash and setting information of the second flash, in a case where the image pickup apparatus is performing image pickup using light emitted from the second flash at a first time, and A transmission unit configured to transmit information based on the position information and the setting information stored in the storage section to the first flash in a case where the first flash irradiates the subject with light at a second time after the first time.
  2. 2. The system of claim 1, wherein, In the first case where it is determined that the same setting as that of the second flash at the first time is possible for the first flash, the transmission unit transmits first information including the position information and the setting information stored in the storage section to the first flash.
  3. 3. The system of claim 2, wherein, In a second case where it is determined that the same setting as that of the second flash at the first time is impossible for the first flash, the transmission unit transmits second information obtained by adjusting the first information to the first flash.
  4. 4. The system of claim 3, wherein, The second information is information obtained by adjusting the first information to correspond to the position and setting of the first flash in the third case, and The third case is a case in which the amount of light emitted from the first flash and reaching the subject is made to coincide with the amount of light emitted from the second flash and reaching the subject at the first time.
  5. 5. The system of claim 4, wherein, The setting information includes information of the amount of luminescence and the angle of light distribution, and The second information includes information obtained by adjusting information of the light emission amount and the light distribution angle in the setting information to information of the light emission amount and the light distribution angle of the first flash in the third case.
  6. 6. The system according to claim 4 or 5, wherein, The position information includes information of a distance between the second flash and the image pickup device, and The second information includes information obtained by adjusting information of a distance between the second flash and the image pickup device in the position information to information of a distance between the first flash and the image pickup device in the third case.
  7. 7. The system of any of claims 3 to 5, further comprising: a notification unit configured to notify that the first information has been adjusted in the second case.
  8. 8. The system according to any one of claims 3 to 5, wherein, The setting information includes information of the amount of light emission, and The system further includes a warning unit configured to issue a warning if the information of the amount of luminescence differs between the first information and the second information by more than a predetermined amount.
  9. 9. The system of any of claims 3 to 5, further comprising: and a warning unit configured to issue a warning if a height of a position of the first flash corresponding to the second information is greater than a predetermined height in the second case.
  10. 10. The system of any of claims 2 to 5, further comprising: a determination unit configured to determine whether the same setting as the setting of the second flash at the first time is possible in the first flash based on the model information of the first flash and the model information of the second flash.
  11. 11. The system according to any one of claims 1 to 5, wherein, The positional information includes 1) a distance and an angle between the image pickup device and the second flash, 2) a distance and an angle between the image pickup device and the subject, and 3) information of an optical axis of the second flash.
  12. 12. The system of claim 11, wherein, The information of the optical axis of the second flash also includes information about a difference between a direction from the second flash to the subject and a direction of the optical axis of the second flash.
  13. 13. The system according to any one of claims 1 to 5, wherein, The setting information includes at least one of a character, a light distribution angle, a light emission amount, and a model name.
  14. 14. The system of claim 13, wherein, The setting information includes posture information indicating whether the posture of the second flash is in a normal position or a vertical position in the case where the light distribution of the second flash is not a circular light distribution.
  15. 15. The system of any one of claims 1 to 5, further comprising: the image pickup device is provided with a camera, Wherein the image pickup apparatus includes the information control unit and the transmission unit.
  16. 16. A system that controls a first strobe that irradiates an object imaged by an imaging device with light, the system comprising: an information control unit configured to store, in a storage section, positional information on a relative position of a second flash with respect to a reference position, in a case where the image pickup apparatus is performing image pickup using light emitted from the second flash at a first time, and A transmission unit configured to transmit information based on the positional information stored in the storage section to the first flash in a case where the first flash irradiates the subject with light at a second time after the first time.
  17. 17. A control method of a system that controls a first flash that irradiates an object imaged by an imaging device with light, the control method comprising: a step of storing, in a storage section, positional information on a position of a second flash and setting information of the second flash when the image pickup apparatus is performing image pickup using light emitted from the second flash at a first time, and And a step of transmitting information based on the position information and the setting information stored in the storage section to the first flash in a case where the first flash irradiates the subject with light at a second time after the first time.
  18. 18. A control method of a system that controls a first flash that irradiates an object imaged by an imaging device with light, the control method comprising: A step of storing position information on a relative position of the second flash with respect to a reference position in a storage section when the image pickup apparatus is picking up an image at a first time using light emitted from the second flash, and And transmitting information based on the positional information stored in the storage section to the first flash when the first flash irradiates the subject with light at a second time subsequent to the first time.
  19. 19. A computer program product comprising a program for causing a computer to execute the respective steps of the control method according to claim 17 or 18.
  20. 20. A computer-readable storage medium storing a program that causes a computer to execute the respective steps of the control method according to claim 17 or 18.

Description

System, control method, computer program product, and computer-readable storage medium Technical Field The present disclosure relates to a system for controlling a flash, a control method, a computer program product and a computer readable storage medium. Background In the case where there is an interval between photographing dates or in the case where photographing is performed by changing positions, a rough distance between an object and a flash may be recorded so as to reproduce the arrangement of the flash (light emitting device). Then, the user performs shooting at the time of reproduction based on the recorded distance. At this time, the user performs fine adjustment while confirming the image. Furthermore, a general user who intends to imitate an image taken by a professional makes trial and error, such as repeating the taking by estimating the arrangement of flash lamps that have already been taken. For this reason, it is difficult to reproduce the arrangement of the flash at the time of shooting, and it is difficult to ensure consistency of shooting. Japanese patent application laid-open 2020-181019 describes a technique for storing the position of a flash after the flash is arranged. Japanese patent application laid-open 2020-181019 aims at preventing positional deviation by storing the absolute position of an installed flash and informing the user of the deviation amount from the absolute position. For this reason, in japanese patent laid-open 2020-181019, for example, in the case where a flash to be used is changed or the position of an object is changed, an effect due to light emission of a past flash with respect to the object may not be reproduced. Disclosure of Invention The present disclosure provides a technique for more faithfully reproducing an effect due to the emission of a past flash with respect to an object. One embodiment of the present disclosure is a system that controls a first flash that irradiates an object imaged by an imaging device with light, the system including an information control unit configured to store, in a storage section, positional information regarding a position of a second flash and setting information of the second flash when the imaging device is imaging using light emitted from the second flash at a first time, and a transmission unit configured to transmit, to the first flash, information based on the positional information and the setting information stored in the storage section, in a case where the first flash irradiates the object with light at a second time after the first time. Features of the present disclosure will become apparent from the following description of embodiments with reference to the accompanying drawings. The following description of the embodiments is described by way of example. Drawings Fig. 1 is a schematic configuration diagram of a camera flash system. Fig. 2 is a block diagram of the UWB device. Fig. 3 is a sequence diagram for explaining distance measurement of the UWB device. Fig. 4 is a diagram illustrating measurement of the angle of the UWB device. Fig. 5 is a diagram for explaining three-lamp illumination. Fig. 6 is a diagram illustrating position information. Fig. 7A is a flowchart of the transmission processing of the position information. Fig. 7B is a flowchart of the transmission processing of the position information. Fig. 8 is a diagram illustrating a setting value table describing information related to the setting of a flash. Fig. 9 is a diagram illustrating a setting value table describing position information of a receiver flash. Fig. 10 is a diagram illustrating a display item displayed on the display unit. Detailed Description Hereinafter, a schematic structure of a camera flash system according to a first embodiment will be described with reference to fig. 1. The camera flash system includes a camera 100, a lens unit 200, and a flash 300. The camera 100 is an image pickup apparatus. The lens unit 200 is detachably attached to the camera 100. The flash 300 is a flash detachably attached to the camera 100. The flash 300 may also function as a transmitter flash that transmits a signal from the camera 100 to a receiver flash, or as a receiver flash that emits light according to the signal. Thus, in the camera flash system, one of the plurality of flash 300 operates as a transmitter flash, and the other flash 300 operates as a receiver flash. Fig. 1 illustrates a case where the flash 300 is used as a receiver flash. The camera 100 and the lens unit 200, and the camera 100 and the flash 300 are connected by a communication line (signal line). For example, the communication line communicates information, such as data exchange or command transmission, with the camera microcomputer 101 as a host (host in a host-device relationship) with each other. (Structure of camera body) the structure of the camera 100 will be described. The camera 100 includes a camera microcomputer 101, an image pickup element 102, a shutter