US-20260129306-A1 - SYSTEM, CONTROL METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM

US20260129306A1US 20260129306 A1US20260129306 A1US 20260129306A1US-20260129306-A1

Abstract

A system controls a first strobe that irradiates an object imaged by an imaging device with light. The system includes: a processor; and a memory storing a program which, when executed by the processor, causes the system to: execute information control processing for storing, in a storage portion, position information regarding a position of a second strobe and setting information of the second strobe in a case where the imaging device is performing imaging using light emitted from the second strobe at a first time; and execute transmission processing for transmitting, to the first strobe, information based on the position information and the setting information stored in the storage portion in a case where the first strobe irradiates the object with light at a second time after the first time.

Inventors

Sho Miyazaki

Assignees

CANON KABUSHIKI KAISHA

Dates

Publication Date: 20260507
Application Date: 20251029
Priority Date: 20241105

Claims (20)

1 . A system that controls a first strobe that irradiates an object imaged by an imaging device with light, the system comprising: a processor; and a memory storing a program which, when executed by the processor, causes the system to: execute information control processing for storing, in a storage portion, position information regarding a position of a second strobe and setting information of the second strobe in a case where the imaging device is performing imaging using light emitted from the second strobe at a first time; and execute transmission processing for transmitting, to the first strobe, information based on the position information and the setting information stored in the storage portion in a case where the first strobe irradiates the object with light at a second time after the first time.
2 . The system according to claim 1 , wherein in the transmission processing, in a first case where it is determined that a same setting as the setting of the second strobe at the first time is possible for the first strobe, first information, including the position information and the setting information stored in the storage portion, is transmitted to the first strobe.
3 . The system according to claim 2 , wherein in the transmission processing, in a second case where it is determined that the same setting as the setting of the second strobe at the first time is not possible for the first strobe, second information obtained by adjusting the first information is transmitted to the first strobe.
4 . The system according to claim 3 , wherein the second information is information obtained by adjusting the first information so as to correspond to the position and setting of the first strobe in a third case, and the third case is a case where an amount of light emitted from the first strobe and hitting the object is made to coincide with an amount of light emitted from the second strobe and hitting the object at the first time.
5 . The system according to claim 4 , wherein the setting information includes information of a light emission amount and a light distribution angle, and the second information includes information obtained by adjusting information of a light emission amount and a light distribution angle in the setting information into information of a light emission amount and a light distribution angle of the first strobe in the third case.
6 . The system according to claim 4 , wherein the position information includes information on a distance between the second strobe and the imaging device, and the second information includes information obtained by adjusting information on a distance between the second strobe and the imaging device in the position information into information of a distance between the first strobe and the imaging device in the third case.
7 . The system according to claim 3 , wherein the program which, when executed by the processor, further causes the system to execute notification processing for notifying that the first information has been adjusted, in the second case.
8 . The system according to claim 3 , wherein the setting information includes information of a light emission amount, and the program which, when executed by the processor, further causes the system to execute warning processing for issuing a warning in a case where the information of the light emission amount is different between the first information and the second information by more than a predetermined amount.
9 . The system according to claim 3 , wherein the program which, when executed by the processor, further causes the system to execute warning processing for issuing a warning in a case where a height of a position of the first strobe corresponding to the second information is larger than a predetermined height in the second case.
10 . The system according to claim 2 , wherein the program which, when executed by the processor, further causes the system to execute determination processing for determining whether or not the same setting as the setting of the second strobe at the first time is possible in the first strobe on a basis of model information of the first strobe and model information of the second strobe.
11 . The system according to claim 1 , wherein the position information includes 1) a distance and an angle between the imaging device and the second strobe, 2) a distance and an angle between the imaging device and the object, and 3) information of an optical axis of the second strobe.
12 . The system according to claim 11 , wherein the information of the optical axis of the second strobe also includes information regarding a difference between a direction from the second strobe to the object and a direction of the optical axis of the second strobe.
13 . The system according to claim 1 , wherein the setting information includes at least one of a role, a light distribution angle, a light emission amount, and a model name.
14 . The system according to claim 13 , wherein the setting information includes posture information indicating whether or not the posture of the second strobe is at a normal position or a vertical position in a case where the light distribution of the second strobe is not a round light distribution.
15 . The system according to claim 1 , further comprising the imaging device, wherein the imaging device executes the information control processing and the transmission processing.
16 . A system that controls a first strobe that irradiates an object imaged by an imaging device with light, the system comprising: a processor; and a memory storing a program which, when executed by the processor, causes the system to: execute information control processing for storing, in a storage portion, position information regarding a relative position of a second strobe with respect to a reference position in a case where the imaging device is performing imaging using light emitted from the second strobe at a first time; and execute transmission processing for transmitting information based on the position information stored in the storage portion to the first strobe in a case where the first strobe irradiates the object with light at a second time after the first time.
17 . A control method of a system that controls a first strobe that irradiates an object imaged by an imaging device with light, the control method comprising: storing, in a storage portion, position information regarding a position of a second strobe and setting information of the second strobe when the imaging device is performing imaging using light emitted from the second strobe at a first time; and transmitting, to the first strobe, information based on the position information and the setting information stored in the storage portion in a case where the first strobe irradiates the object with light at a second time after the first time.
18 . A control method of a system that controls a first strobe that irradiates an object imaged by an imaging device with light, the control method comprising: storing, in a storage portion, position information regarding a relative position of a second strobe with respect to a reference position when the imaging device is performing imaging using light emitted from the second strobe at a first time; and transmitting information based on the position information stored in the storage portion to the first strobe when the first strobe irradiates the object with light at a second time after the first time.
19 . A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute a control method of a system that controls a first strobe that irradiates an object imaged by an imaging device with light, the control method comprising: storing, in a storage portion, position information regarding a position of a second strobe and setting information of the second strobe when the imaging device is performing imaging using light emitted from the second strobe at a first time; and transmitting, to the first strobe, information based on the position information and the setting information stored in the storage portion in a case where the first strobe irradiates the object with light at a second time after the first time.
20 . A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute a control method of a system that controls a first strobe that irradiates an object imaged by an imaging device with light, the control method comprising: storing, in a storage portion, position information regarding a relative position of a second strobe with respect to a reference position when the imaging device is performing imaging using light emitted from the second strobe at a first time; and transmitting information based on the position information stored in the storage portion to the first strobe when the first strobe irradiates the object with light at a second time after the first time.

Description

BACKGROUND Field of the Technology The present disclosure relates to a system for controlling a strobe, a control method and a non-transitory computer readable medium. Description of the Related Art In a case where there is an interval between photographing dates or in a case where photographing is performed by changing the location, a rough distance between an object and the strobe may be recorded in order to reproduce the arrangement of the strobe (light-emitting device). Then, the user performs photographing at the time of reproduction on the basis of the recorded distance. At this time, the user performs fine adjustment while confirming the image. In addition, a general user who intends to imitate an image captured by a professional performs trial and error such as repeating photographing by estimating the arrangement of the strobe with which photographing has been performed. For this reason, it is very difficult to reproduce the arrangement of the strobe at the time of photographing, and there is difficulty in ensuring consistency in photographing. Japanese Patent Laid-Open No. 2020-181019 describes a technique for storing a position of a strobe after the strobe is arranged. Japanese Patent Laid-Open No. 2020-181019 aims to prevent positional deviation by storing an absolute position of an installed strobe and notifying a user of a deviation amount from the absolute position. For this reason, in Japanese Patent Laid-Open No. 2020-181019, for example, in a case where the strobe to be used is changed or the position of the object is changed, the effect due to past light emission of a strobe with respect to the object may not be able to be reproduced. SUMMARY The present disclosure provides a technique for more faithfully reproducing an effect due to past light emission of a strobe with respect to the object. One embodiment of the present disclosure is a system that controls a first strobe that irradiates an object imaged by an imaging device with light, the system including: a processor; and a memory storing a program which, when executed by the processor, causes the system to: execute information control processing for storing, in a storage portion, position information regarding a position of a second strobe and setting information of the second strobe in a case where the imaging device is performing imaging using light emitted from the second strobe at a first time; and execute transmission processing for transmitting, to the first strobe, information based on the position information and the setting information stored in the storage portion in a case where the first strobe 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 attached drawings. The following description of embodiments is described by way of example. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a camera strobe system. FIG. 2 is a configuration diagram of a UWB device. FIG. 3 is a sequence diagram for explaining distance measurement by the UWB device. FIG. 4 is a diagram illustrating measurement of an 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 transmission processing of position information. FIG. 7B is a flowchart of transmission processing of position information. FIG. 8 is a diagram illustrating a setting value table describing information related to the setting of the strobe. FIG. 9 is a diagram illustrating a setting value table describing position information of a receiver strobe. FIG. 10 is a diagram illustrating display items displayed on a display unit. DESCRIPTION OF THE EMBODIMENTS Hereinafter, a schematic configuration of a camera strobe system according to a first embodiment will be described with reference to FIG. 1. The camera strobe system includes a camera 100, a lens unit 200, and a strobe 300. The camera 100 is an imaging device. The lens unit 200 is detachably attached to the camera 100. The strobe 300 is a strobe detachably attached to the camera 100. The strobe 300 can be used also as a sender strobe that sends a signal from the camera 100 to a receiver strobe or as a receiver strobe that emits light according to the signal. Therefore, in the camera strobe system, one of a plurality of strobes 300 operates as the sender strobe, and the other strobe 300 operates as the receiver strobe. FIG. 1 illustrates a case where the strobe 300 is used as a receiver strobe. The camera 100 and the lens unit 200 and the camera 100 and the strobe 300 are connected by a communication line (signal line). The communication lines mutually perform communication of information such as exchange of data or transmission of a command with a camera microcomputer 101 as a host (host in a host device relationship), for example. (Configuration of Cam