WO2021258308A1 - Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur - Google Patents

Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur Download PDF

Info

Publication number
WO2021258308A1
WO2021258308A1 PCT/CN2020/097822 CN2020097822W WO2021258308A1 WO 2021258308 A1 WO2021258308 A1 WO 2021258308A1 CN 2020097822 W CN2020097822 W CN 2020097822W WO 2021258308 A1 WO2021258308 A1 WO 2021258308A1
Authority
WO
WIPO (PCT)
Prior art keywords
zoom
speed
rotation
photographing device
focus wheel
Prior art date
Application number
PCT/CN2020/097822
Other languages
English (en)
Chinese (zh)
Inventor
王协平
黄常建
杨俊超
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN202080006562.0A priority Critical patent/CN113170055A/zh
Priority to PCT/CN2020/097822 priority patent/WO2021258308A1/fr
Publication of WO2021258308A1 publication Critical patent/WO2021258308A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Definitions

  • This application relates to the technical field of zoom control, and in particular to a zoom control method, device, handheld pan/tilt, and computer-readable storage medium.
  • shooting devices such as SLR cameras, digital cameras, and smartphones to shoot and record scenery in daily life and travel. Users can use the zoom function of the shooting device to achieve push and pull when shooting The camera can shoot a good viewfinder.
  • the user can also install shooting equipment such as SLR cameras, digital cameras, and smart phones on the handheld pan/tilt, which can stably control the effect of keeping the shooting equipment in a certain posture.
  • the embodiments of the present application provide a zoom control method, device, handheld pan/tilt, and computer-readable storage medium, aiming to improve the convenience of controlling the zoom of a photographing device and improve user experience.
  • an embodiment of the present application provides a zoom control method, which is applied to a control device, the control device is used to control a photographing device, the control device includes a follow focus wheel, and the method includes:
  • the zoom of the photographing device is controlled according to the rotation speed of the follow focus wheel within the rotation distance.
  • an embodiment of the present application also provides a control device, the control device is used to control the shooting equipment, the control device includes a follow focus wheel, a memory, and a processor;
  • the memory is used to store a computer program
  • the processor is configured to execute the computer program and, when executing the computer program, implement the following steps:
  • the zoom of the photographing device is controlled according to the rotation speed of the follow focus wheel within the rotation distance.
  • the embodiments of the present application also provide a handheld pan/tilt head.
  • the handheld pan/tilt head includes a handle portion, a follow focus wheel provided on the handle portion, and a pan/tilt head provided on the handle portion.
  • the pan/tilt is used for carrying photographing equipment, and the handheld pan/tilt also includes a memory and a processor;
  • the memory is used to store a computer program
  • the processor is configured to execute the computer program and, when executing the computer program, implement the following steps:
  • the zoom of the photographing device is controlled according to the rotation speed of the follow focus wheel within the rotation distance.
  • the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor realizes the implementation as in the present application.
  • the embodiments of the present application provide a zoom control method, device, handheld pan/tilt head, and computer-readable storage medium.
  • By responding to a user's rotating operation of the follow focus wheel obtain the rotation distance and rotation speed of the follow focus wheel, and then determine When the rotation distance is greater than or equal to the set distance threshold, the zoom of the shooting device is controlled according to the rotation speed of the follow focus wheel within the rotation distance, so that automatic zoom can be realized based on the user's control intention of manipulating the zoom wheel, which improves user control Convenience of zooming of shooting equipment.
  • FIG. 1 is a schematic structural diagram of a handheld pan/tilt that implements the zoom control method provided by an embodiment of the present application;
  • FIG. 2 is a schematic flowchart of steps of a zoom control method provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of sub-steps of the zoom control method in FIG. 2;
  • FIG. 4 is a schematic flowchart of steps of another zoom control method provided by an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of the structure of a control device provided by an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of the structure of a handheld pan/tilt head provided by an embodiment of the present application.
  • the embodiments of the present application provide a zoom control method, a device, a handheld pan-tilt, and a computer-readable storage medium.
  • the zoom control method can be applied to a control device, the control device is used to control shooting equipment, and the control device includes a follow focus wheel,
  • the zoom control method can also be applied to a handheld pan/tilt. Please refer to FIG. 1.
  • FIG. 1 is a schematic structural diagram of a handheld pan/tilt that implements the zoom control method provided by the embodiment of the present application.
  • the handheld pan/tilt head in the embodiment of the present application will be described with reference to FIG. 1.
  • the handheld PTZ 100 includes a handle 101, a PTZ 102 and a follow focus wheel 103 provided on the handle 101.
  • the PTZ 102 is used to carry a photographing device.
  • the photographing device and The pan-tilt 102 is integrated, and the shooting device is a smart phone.
  • the shooting device can also be other camera devices, such as a single-lens reflex camera.
  • the user can rotate the follow focus wheel 103 to control the camera mounted on the pan/tilt 102 to zoom or follow focus.
  • the pan/tilt 102 includes three-axis motors, namely a pitch (pitch) axis motor 1021, a roll (roll) axis 1022 and a translation (yaw) axis motor 1023, which are used to adjust the camera equipment mounted on the pan/tilt 102 Balance the posture in order to shoot high-precision and stable images anytime and anywhere.
  • a pitch (pitch) axis motor 1021 a roll (roll) axis 1022
  • a translation (yaw) axis motor 1023 which are used to adjust the camera equipment mounted on the pan/tilt 102 Balance the posture in order to shoot high-precision and stable images anytime and anywhere.
  • the pan/tilt 102 is provided with an inertial measurement unit (IMU), which may be, for example, at least one of an accelerometer or a gyroscope, which may be used to measure the attitude and acceleration of the pan/tilt 102, so as to adjust according to the attitude.
  • IMU inertial measurement unit
  • the handle portion 101 is also provided with an inertial measurement unit (IMU), which can be, for example, at least one of an accelerometer or a gyroscope, which can be used to measure the attitude and acceleration of the handle portion 101, etc.
  • IMU inertial measurement unit
  • the handle part 101 is also provided with an operation control key, so that the user can operate the operation control key to control the pan-tilt 102 or the photographing equipment mounted on the pan-tilt 102.
  • the operation control key can be, for example, a button, a trigger, a knob or a rocker, etc., of course, it also includes other forms of physical keys.
  • the joystick can be used to control the movement of three rotating shafts, thereby controlling the movement of the pan-tilt 102. It is understandable that the joystick can also be used for other functions.
  • the handheld pan/tilt 101 includes a processor, and the processor is used to process input control instructions, or send and receive signals.
  • the processor may be provided inside the handle part 101.
  • the processor may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), and application specific integrated circuits (application specific integrated circuits). circuit, ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • FIG. 2 is a schematic flowchart of steps of a zoom control method provided by an embodiment of the present application.
  • the zoom control method is applied to a control device, the control device is used to control a photographing device, and the control device includes a follow focus wheel.
  • the zoom control method includes step S101 to step S102.
  • the follow focus wheel includes a position sensor, the position information of the follow focus wheel can be collected by the position sensor, and the rotation distance and speed of the follow focus wheel can be determined through the position information.
  • the position sensor includes but is not limited to a Hall sensor and Encoder.
  • the position information of the follow-focus wheel collected by the position sensor is acquired; according to the position The information determines the rotation distance and rotation speed of the focus wheel.
  • the position information includes the position of the follow-focus wheel collected at different times.
  • the position sensor collects the position of the follow-focus wheel at a preset time interval, so that it can be included.
  • the position information of the position of the follow-focus wheel collected at different times by the follow-focus wheel can be set according to the actual situation, which is not specifically limited in the embodiment of the present application.
  • the method of determining the rotation distance and rotation speed of the follow focus wheel according to the position information may be: obtain the position of the follow focus wheel collected by the position sensor at different moments from the position information, and according to the position information
  • the position sensor collects the position of the follow focus wheel at different times and the collection time interval to determine the rotation distance and multiple rotation speeds of the follow focus wheel.
  • the collection interval time is T
  • the position of the follow focus wheel collected by the position sensor at two adjacent times t 1 and t 2 are S 1 and S 2 respectively .
  • the rotation speed of the follow focus wheel V (S 2 -S 1 )/T
  • the rotation distance of the focus wheel When the rotation distance of the focus wheel is obtained, it is determined whether the rotation distance is greater than or equal to the first preset distance threshold. When it is determined that the rotation distance is greater than or equal to the first preset distance threshold, according to the rotation distance of the follow focus wheel The rotation speed within the distance controls the zooming of the photographing device, and when it is determined that the rotation distance is less than the first preset distance threshold, continue to respond to the user's rotation operation of the follow focus wheel to obtain the rotation distance and rotation speed of the follow focus wheel.
  • the first preset distance threshold can be set according to actual conditions, which is not specifically limited in the embodiment of the present application. For example, the first preset distance threshold is 10 centimeters.
  • the turning distance of the focusing wheel is set to zero, and when it is determined that the turning distance is less than When the first preset distance threshold and the user continue to rotate the follow-focus wheel, continue to respond to the user's rotating operation of the follow-focus wheel to obtain the rotation distance and rotation speed of the follow-focus wheel.
  • the rotation distance of the focus wheel is set to zero, so that the user can quickly correct the wrong direction.
  • the rotation direction of the follow focus wheel can also prevent the zoom start due to the accumulation of the rotation distance when the follow focus wheel is rotated next time.
  • the zoom of the photographing device when it is determined that the turning distance is greater than or equal to the first preset distance threshold, and it is detected that the user stops turning the focus wheel, the zoom of the photographing device is controlled according to the rotation speed of the focus wheel during the turning distance.
  • the zoom of the shooting device can be automatically controlled based on the rotation speed of the follow focus wheel within the rotation distance. The user is required to manually control the zoom of the shooting device, which greatly improves the convenience of controlling the zoom of the shooting device and improves the user experience.
  • the method of controlling the zoom of the photographing device according to the rotation speed of the follow focus wheel in the rotation distance may be: obtain the zoom gear factor; according to the zoom gear factor and the rotation of the follow focus wheel in the rotation distance Speed, determine the zoom speed of the control device; control the shooting device to zoom according to the zoom speed.
  • the zoom gear factor is used to characterize the speed of zooming of the photographing device.
  • the zoom gear factor can be set by the user, or the default zoom gear factor can be used, which is not specifically limited in this application.
  • the rotation speed of the follow focus wheel within the rotation distance can determine how fast the user turns the follow focus wheel, so that the zoom speed of the control device that the user wants can be determined based on the zoom gear factor and the rotation speed of the follow focus wheel, so that The control device can zoom according to the zoom speed desired by the user, which greatly improves the user experience.
  • the method of determining the zoom speed of the control device may be: Rotation speed, determine the target rotation speed, that is, determine the maximum rotation speed, the minimum rotation speed or the average rotation speed based on multiple rotation speeds, and use the maximum rotation speed, the minimum rotation speed or the average rotation speed as the target rotation speed; obtain the zoom gear The relationship between the coefficient, the rotation speed and the zoom speed; according to the relationship, the zoom gear coefficient and the target rotation speed, the zoom speed of the control device is determined.
  • V 1 is the zoom speed
  • V 2 is the rotation speed
  • k is the zoom gear coefficient
  • b is the gain value of the zoom speed
  • step S102 specifically includes: sub-steps S1021 to S1023.
  • the zoom gear coefficient is obtained from the memory.
  • the zoom gear factor is used to characterize the speed of the zoom of the control device.
  • the zoom gear factor can adopt the default zoom gear factor or can be set by the user, which is not specifically limited in this application.
  • the way for the user to set the zoom gear factor can be: controlling the shooting device to display the setting page of the zoom gear factor, the setting page includes the setting icon of the zoom gear factor and the confirmation icon of the zoom gear factor; obtaining the user's setting Trigger operation of the icon, and determine the zoom gear coefficient set by the user according to the trigger operation; when the user trigger operation on the confirmation icon is detected, store the zoom gear coefficient set by the user in the memory.
  • the display position and shape of the zoom gear factor setting icon and the confirmation icon can be set based on actual conditions, which is not specifically limited in this application.
  • the setting icon of the zoom gear factor is a sliding bar.
  • the speed and the zoom gear factor determine multiple zoom speeds of the photographing device, and generate a zoom speed curve of the photographing device based on the multiple zoom speeds.
  • the method of generating the zoom speed curve of the photographing device may be: according to the number of rotation speeds of the follow focus wheel in the rotation distance Multiple rotation speeds and zoom gear factors are determined to determine multiple zoom speeds; multiple zoom speeds are smoothed to obtain multiple target zoom speeds; the zoom speed curve of the shooting device is generated according to the multiple target zoom speeds.
  • the method of smoothing multiple zoom speeds may be: input multiple zoom speeds into a low-pass filter for filtering to obtain multiple target zoom speeds.
  • the cut-off frequency of the low-pass filter can be set based on actual conditions, which is not specifically limited in this application.
  • the user mainly controls the zoom of the shooting device through the shooting device or the follow focus wheel of the handheld pan/tilt, but when the user is required to manually turn the focus wheel, the problem of uneven zoom is prone to occur, resulting in the shooting.
  • the picture zoom is not smooth, and it is inconvenient for the user to control the zoom of the shooting device.
  • multiple target zoom speeds are obtained by smoothing multiple zoom speeds, and a smooth zoom speed curve can be generated based on the multiple target zoom speeds, so that the shooting device can zoom according to the smooth zoom speed curve. , Can ensure the smooth zoom of the shooting equipment, facilitate the shooting to get a smooth picture, and improve the user experience.
  • control the zoom of the shooting device based on the zoom speed curve for example, determine the constant zoom speed of the shooting device according to the zoom speed curve; control the shooting device to zoom according to the constant zoom speed.
  • the method of determining the constant zoom speed of the shooting device according to the zoom speed curve may be: determine the maximum zoom speed, the minimum zoom speed or the average zoom speed according to the zoom speed curve; and the maximum zoom speed, the minimum zoom speed or the average zoom speed As the constant zoom speed of the camera.
  • the method of controlling the zoom of the shooting device according to the zoom speed curve may be: determining the zoom trend, the first zoom speed, and the second zoom speed of the shooting device according to the zoom speed curve; according to the zoom trend, the first zoom The speed and the second zoom speed control the zoom of the photographing device.
  • the first zoom speed is greater than the second zoom speed
  • the first zoom speed is the maximum value of the zoom speed curve
  • the second zoom speed is the minimum value of the zoom speed curve.
  • the zoom trend includes a gradual increase in the zoom speed from the first zoom speed.
  • the zoom speed gradually decreases from the second zoom speed to the first zoom speed
  • the zoom speed gradually increases from the first zoom speed to the second zoom speed, and then gradually decreases from the second zoom speed to the first zoom speed
  • the zoom speed gradually decreases from the second zoom speed to the first zoom speed, and then gradually increases from the first zoom speed to the second zoom speed, and so on.
  • the zooming of the shooting device is controlled by the zoom trend, the first zoom speed and the second zoom speed, so that the shooting device can zoom in accordance with the user's zooming intention, which greatly improves the user experience.
  • the method of controlling the zoom of the photographing device according to the zoom speed curve may also be: determining the zoom trend and constant zoom speed of the photographing device according to the zoom speed curve; obtaining a preset corresponding to the zoom trend and constant zoom speed. Set the zoom speed curve; control the shooting device to zoom in accordance with the preset zoom speed curve.
  • the method of controlling the zoom of the photographing device according to the zoom speed curve may also be: determining the similarity between the zoom speed curve and each preset zoom speed curve; according to the zoom speed curve and each preset zoom For the similarity between speed curves, the target zoom speed curve is determined from each preset zoom speed curve, that is, the preset zoom speed curve with the highest similarity is used as the target zoom speed curve; the shooting device is controlled to follow the target zoom speed curve Perform zooming.
  • the shooting device By controlling the shooting device to zoom according to the preset zoom speed curve with the highest similarity, the shooting device can zoom in accordance with the user's zooming intention, which greatly improves the user experience.
  • the memory stores multiple preset zoom speed curves and the corresponding relationships among preset zoom speed curves, zoom trends, and constant zoom speeds.
  • the corresponding preset zoom trends and constant zoom speeds can be obtained through the relationship between the zoom trend and the constant zoom speed of the shooting device.
  • the set zoom speed curve, the preset zoom speed curve, and the corresponding relationship between the preset zoom speed curve, zoom trend, and constant zoom speed can be set according to actual conditions, which are not specifically limited in this application.
  • the multiple preset zoom speed curves stored in the memory can also be set based on the user's zoom habit. For example, collecting data on the user's operation habit of the focus wheel in different scenarios, and the operation habit data The analysis is performed to obtain the zoom speed curve of the shooting device in different scenes, and the zoom speed curve of the shooting device in different scenes is stored in the memory.
  • the operating habit data includes the rotation speed, rotation distance, and rotation duration of the follow focus wheel.
  • the preset zoom speed curve in the memory can also be updated at preset intervals based on the user's operating habit data on the focus wheel.
  • the preset time can be set based on actual conditions, for example, the preset time is 15 days.
  • the method for determining the similarity between the zoom speed curve and each preset zoom speed curve may be: determining the Euclidean distance between the zoom speed curve of the photographing device and each preset zoom speed curve, how much Hausdorff distance and/or Fréchet distance; according to the Euclidean distance, Hausdorff distance and/or Fréchet distance between the zoom speed curve and each preset zoom speed curve To determine the similarity between the zoom speed curve and each preset zoom speed curve.
  • the zoom control method provided in the above embodiment obtains the rotation distance and rotation speed of the follow focus wheel by responding to the user's turning operation of the follow focus wheel, and then when it is determined that the rotation distance is greater than or equal to the set distance threshold, according to the The rotation speed of the follow focus wheel within the turning distance controls the zoom of the shooting device, so that the zoom of the shooting device is uniform, and the picture captured by the shooting device is smooth, which greatly improves the convenience for the user to control the zoom of the shooting device and improves the user experience.
  • FIG. 4 is a schematic flowchart of steps of another zoom control method provided by an embodiment of the present application.
  • the zoom control method includes steps S201 to S203.
  • the follow focus wheel includes a position sensor, the position information of the follow focus wheel can be collected by the position sensor, and the rotation distance and speed of the follow focus wheel can be determined through the position information.
  • the position sensor includes but is not limited to a Hall sensor and Encoder.
  • the rotation distance of the focus wheel When the rotation distance of the focus wheel is obtained, it is determined whether the rotation distance is greater than or equal to the first preset distance threshold. When it is determined that the rotation distance is greater than or equal to the first preset distance threshold, according to the rotation distance of the follow focus wheel The rotation speed within the distance controls the zooming of the photographing device, and when it is determined that the rotation distance is less than the first preset distance threshold, continue to respond to the user's rotation operation of the follow focus wheel to obtain the rotation distance and rotation speed of the follow focus wheel.
  • the first preset distance threshold can be set according to actual conditions, which is not specifically limited in the embodiment of the present application. For example, the first preset distance threshold is 10 centimeters.
  • the triggering mode of the zoom stop instruction includes manual triggering and automatic triggering by the user.
  • the automatic triggering mode may be: when it is detected that the shooting device reaches the zoom limit, triggering the zoom stop instruction of the shooting device, or when the shooting device zooms When the duration reaches the set duration, the zoom stop instruction of the shooting device is triggered.
  • the user can manually trigger: in response to the user's trigger operation of the handheld pan/tilt or the zoom stop button on the shooting device, trigger the zoom of the shooting device
  • the stop instruction can also be: when it is detected that the focus wheel is rotating in the opposite direction corresponding to the current zoom direction of the shooting device, obtain the current rotation distance of the focus wheel; when it is determined that the current rotation distance is greater than or equal to
  • the zoom stop instruction of the shooting device is triggered.
  • the camera is controlled to stop zooming, so that the user can control the camera to stop zooming.
  • the first preset distance threshold is greater than the second preset distance threshold
  • the above-mentioned set duration and the second preset distance threshold can be set based on actual conditions, and this application does not specifically limit this, for example, set The duration is 1 minute, and the second preset distance threshold is 5 cm.
  • the zoom control method provided in the above embodiment obtains the rotation distance and rotation speed of the follow focus wheel by responding to the user's turning operation of the follow focus wheel, and then when it is determined that the rotation distance is greater than or equal to the set distance threshold, according to the The rotation speed of the focus wheel within the turning distance controls the zoom of the shooting device; when the zoom stop instruction of the shooting device is detected, the shooting device is controlled to stop zooming according to the zoom stop instruction, which greatly improves the user's ability to control the zoom of the shooting device Convenience improves the user experience.
  • FIG. 5 is a schematic block diagram of the structure of a control device according to an embodiment of the present application.
  • the control device 300 is used to control the shooting equipment.
  • the control device 300 includes a follow focus wheel 401, a processor 302, and a memory 303.
  • the follow focus wheel 401, the processor 302, and the memory 303 are connected by a bus 304.
  • a bus 304 For example, it is an I2C (Inter-integrated Circuit) bus.
  • the processor 302 may be a micro-controller unit (MCU), a central processing unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP), or the like.
  • MCU micro-controller unit
  • CPU Central Processing Unit
  • DSP Digital Signal Processor
  • the memory 303 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) disk, an optical disk, a U disk, or a mobile hard disk.
  • the processor 302 is configured to run a computer program stored in the memory 303, and implement the following steps when the computer program is executed:
  • the zoom of the photographing device is controlled according to the rotation speed of the follow focus wheel within the rotation distance.
  • control device includes a position sensor of the follow focus wheel, and the acquisition of the rotation distance and rotation speed of the follow focus wheel in response to a user's rotation operation of the follow focus wheel includes:
  • the rotation distance and rotation speed of the follow focus wheel are determined.
  • controlling the zoom of the photographing device according to the rotation speed of the follow focus wheel within the rotation distance includes:
  • controlling the zoom of the photographing device according to the rotation speed of the follow focus wheel within the rotation distance includes:
  • the zoom of the photographing device is controlled according to the zoom speed curve.
  • the generating a zoom speed curve of the photographing device according to the plurality of rotation speeds of the follow focus wheel in the rotation distance and the zoom gear coefficient includes:
  • the zoom speed curve of the photographing device is generated according to the multiple target zoom speeds.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the determining the constant zoom speed of the photographing device according to the zoom speed curve includes:
  • the maximum zoom speed, minimum zoom speed, or average zoom speed is taken as the constant zoom speed of the photographing device.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the zooming of the photographing device is controlled according to the zoom trend, the first zoom speed, and the second zoom speed.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the processor is further configured to implement the following steps:
  • the processor is further configured to implement the following steps:
  • the rotation distance of the follow focus wheel is set to zero.
  • the processor is further configured to implement the following steps:
  • the photographing device When a zoom stop instruction of the photographing device is detected, the photographing device is controlled to stop zooming according to the zoom stop instruction.
  • the processor is further configured to implement the following steps:
  • a zoom stop instruction of the photographing device is triggered.
  • FIG. 6 is a schematic block diagram of the structure of a handheld pan/tilt head provided by an embodiment of the present application.
  • the handheld PTZ 400 includes a handle, a follow focus wheel 401 and a PTZ 402 on the handle.
  • the handheld PTZ 400 also includes a processor 403 and a memory 404.
  • the focal wheel 401, the pan-tilt 402, the processor 403, and the memory 404 are connected by a bus 405, which is, for example, an I2C (Inter-integrated Circuit) bus.
  • I2C Inter-integrated Circuit
  • the processor 403 may be a micro-controller unit (MCU), a central processing unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP), or the like.
  • MCU micro-controller unit
  • CPU Central Processing Unit
  • DSP Digital Signal Processor
  • the memory 404 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) disk, an optical disk, a U disk, or a mobile hard disk.
  • the pan/tilt 402 is used to carry a photographing device.
  • the photographing device is integrated with the pan/tilt 402, and the photographing device is a smart phone.
  • the photographing device may also be other photographing devices, such as a single-lens reflex camera.
  • the user can turn the follow focus wheel 401 to control the camera mounted on the pan/tilt 402 to zoom or follow focus.
  • the pan/tilt 402 includes three-axis motors, which are pitch (pitch) axis motors, roll (roll) axis motors and translation (yaw) axis motors, which are used to adjust the balance posture of the shooting equipment mounted on the pan/tilt 402. In order to shoot high-precision stable pictures anytime, anywhere.
  • the pan/tilt 402 is provided with an inertial measurement unit (IMU), which may be, for example, at least one of an accelerometer or a gyroscope, which may be used to measure the attitude and acceleration of the pan/tilt 102, so as to adjust according to the attitude.
  • IMU inertial measurement unit
  • an inertial measurement unit (IMU) is also provided on the handle portion, which may be, for example, at least one of an accelerometer or a gyroscope, which may be used to measure the attitude and acceleration of the handle portion, so as to
  • the attitude of the pan/tilt head 402 is adjusted according to the attitude of the handle and the attitude of the pan/tilt head 402.
  • the handle part is also provided with an operation control key, so that the user can operate the operation control key to control the pan/tilt 402 or the photographing equipment mounted on the pan/tilt 402.
  • the operation control key can be, for example, a button, a trigger, a knob, or a joystick, etc., and of course, it also includes other forms of physical keys.
  • the joystick can be used to control the movement of the three rotating shafts, thereby controlling the movement of the pan/tilt 402. It is understandable that the joystick can also be used for other functions.
  • the processor 403 is configured to run a computer program stored in the memory 404, and implement the following steps when the computer program is executed:
  • the zoom of the photographing device is controlled according to the rotation speed of the follow focus wheel within the rotation distance.
  • control device includes a position sensor of the follow focus wheel, and the acquisition of the rotation distance and rotation speed of the follow focus wheel in response to a user's rotation operation of the follow focus wheel includes:
  • the rotation distance and rotation speed of the follow focus wheel are determined.
  • controlling the zoom of the photographing device according to the rotation speed of the follow focus wheel within the rotation distance includes:
  • controlling the zoom of the photographing device according to the rotation speed of the follow focus wheel within the rotation distance includes:
  • the zoom of the photographing device is controlled according to the zoom speed curve.
  • the generating a zoom speed curve of the photographing device according to the plurality of rotation speeds of the follow focus wheel in the rotation distance and the zoom gear coefficient includes:
  • the zoom speed curve of the photographing device is generated according to the multiple target zoom speeds.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the determining the constant zoom speed of the photographing device according to the zoom speed curve includes:
  • the maximum zoom speed, minimum zoom speed, or average zoom speed is taken as the constant zoom speed of the photographing device.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the zooming of the photographing device is controlled according to the zoom trend, the first zoom speed, and the second zoom speed.
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • controlling the zoom of the photographing device according to the zoom speed curve includes:
  • the processor is further configured to implement the following steps:
  • the processor is further configured to implement the following steps:
  • the rotation distance of the follow focus wheel is set to zero.
  • the processor is further configured to implement the following steps:
  • the photographing device When a zoom stop instruction of the photographing device is detected, the photographing device is controlled to stop zooming according to the zoom stop instruction.
  • the processor is further configured to implement the following steps:
  • a zoom stop instruction of the photographing device is triggered.
  • An embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes program instructions, and the processor executes the program instructions to implement the above-mentioned embodiments.
  • the steps of the zoom control method are also provided.
  • the computer-readable storage medium may be the internal storage unit of the control device or the handheld pan/tilt head described in any of the foregoing embodiments, for example, the hard disk or memory of the control device or the handheld pan/tilt head.
  • the computer-readable storage medium may also be an external storage device of the control device or the handheld pan/tilt, for example, a plug-in hard disk or a smart memory card (Smart Media Card, SMC) equipped on the control device or the handheld pan/tilt. , Secure Digital (SD) card, Flash Card, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne un procédé et un appareil de commande de zoom, et une suspension à cardan portative et un support de stockage lisible par ordinateur. Le procédé comprend les étapes suivantes : en réponse à une opération de rotation d'une roue de mise au point par un utilisateur, acquérir une distance de rotation et une vitesse de rotation de la roue de mise au point (S101) ; et lorsqu'il est déterminé que la distance de rotation est supérieure ou égale à une première valeur seuil de distance prédéfinie, commander le zoom d'un dispositif de photographie selon la vitesse de rotation de la roue de mise au point sur la distance de rotation (S102). La présente invention améliore le confort d'un utilisateur lors de la commande du zoom d'un dispositif de photographie.
PCT/CN2020/097822 2020-06-23 2020-06-23 Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur WO2021258308A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080006562.0A CN113170055A (zh) 2020-06-23 2020-06-23 变焦控制方法、装置、手持云台及计算机可读存储介质
PCT/CN2020/097822 WO2021258308A1 (fr) 2020-06-23 2020-06-23 Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/097822 WO2021258308A1 (fr) 2020-06-23 2020-06-23 Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur

Publications (1)

Publication Number Publication Date
WO2021258308A1 true WO2021258308A1 (fr) 2021-12-30

Family

ID=76879261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/097822 WO2021258308A1 (fr) 2020-06-23 2020-06-23 Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur

Country Status (2)

Country Link
CN (1) CN113170055A (fr)
WO (1) WO2021258308A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113805607B (zh) * 2021-09-17 2024-06-28 深圳市道通智能航空技术股份有限公司 一种无人机拍摄方法、装置、无人机及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104836954A (zh) * 2015-04-23 2015-08-12 金三立视频科技（深圳）有限公司 变焦跟踪方法及其装置
WO2016051128A1 (fr) * 2014-10-03 2016-04-07 The Vitec Group Plc Dispositif de commande de mise au point manuelle
CN205353534U (zh) * 2016-02-26 2016-06-29 深圳市道通智能航空技术有限公司 一种云台相机跟焦结构、云台及飞行器
CN205384727U (zh) * 2015-11-25 2016-07-13 深圳市大疆创新科技有限公司 遥控器、可移动平台、可移动平台系统及无人飞行器
CN209356825U (zh) * 2019-02-26 2019-09-06 深圳市大疆创新科技有限公司 跟焦器及云台
CN110771133A (zh) * 2018-11-15 2020-02-07 深圳市大疆创新科技有限公司 一种相机镜头调节方法、装置及控制设备、控制系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013055737A1 (fr) * 2011-10-14 2013-04-18 Pelco, Inc. Commande de foyer pour caméras à panoramique, inclinaison et zoom (ptz)
CN113473020A (zh) * 2015-11-25 2021-10-01 深圳市大疆灵眸科技有限公司 一种跟焦器控制方法和装置及系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016051128A1 (fr) * 2014-10-03 2016-04-07 The Vitec Group Plc Dispositif de commande de mise au point manuelle
CN104836954A (zh) * 2015-04-23 2015-08-12 金三立视频科技（深圳）有限公司 变焦跟踪方法及其装置
CN205384727U (zh) * 2015-11-25 2016-07-13 深圳市大疆创新科技有限公司 遥控器、可移动平台、可移动平台系统及无人飞行器
CN205353534U (zh) * 2016-02-26 2016-06-29 深圳市道通智能航空技术有限公司 一种云台相机跟焦结构、云台及飞行器
CN110771133A (zh) * 2018-11-15 2020-02-07 深圳市大疆创新科技有限公司 一种相机镜头调节方法、装置及控制设备、控制系统
CN209356825U (zh) * 2019-02-26 2019-09-06 深圳市大疆创新科技有限公司 跟焦器及云台

Also Published As

Publication number Publication date
CN113170055A (zh) 2021-07-23

Similar Documents

Publication Publication Date Title
US10547774B2 (en) Image processing device, image processing method, and program
JP6231804B2 (ja) 電子装置およびその制御方法
JP6327995B2 (ja) 撮像装置、制御装置及びそれらの制御方法、プログラム、並びに記憶媒体
US8908916B2 (en) Control apparatus, control method, and program to search for a subject and automatically perform image-recording
US8988535B2 (en) Photographing control method and apparatus according to motion of digital photographing apparatus
EP2461570A1 (fr) Dispositif de commande, système de capture d'images, procédé de commande, et programme
CN112825543B (zh) 一种拍摄的方法及设备
US9538079B2 (en) Methods and electronic devices enabling panoramic photography
JP6518409B2 (ja) 撮影装置及び撮影方法
WO2021026789A1 (fr) Procédé de photographie basé sur un cardan portatif, et cardan portatif et support d'enregistrement
CN109495626A (zh) 一种用于便携式移动通讯设备的拍摄辅助装置及系统
WO2022061537A1 (fr) Procédé de commande, stabilisateur portatif, système, et support de stockage lisible par ordinateur
JP6751620B2 (ja) 撮像装置及びその制御方法、プログラム、並びに記憶媒体
WO2021258308A1 (fr) Procédé et appareil de commande de zoom, et suspension à cardan portative et support de stockage lisible par ordinateur
WO2022061541A1 (fr) Procédé de commande, stabilisateur portatif, système, et support de stockage lisible par ordinateur
JP2011188345A (ja) 携帯電子機器
US9648242B2 (en) Display control apparatus, display control method, program, and image pickup apparatus for assisting a user
WO2021026764A1 (fr) Procédé et système de commande de terminal photographique, et cardan portatif et support d'informations lisible
WO2022000138A1 (fr) Procédé et appareil dfe commande de photographie, cardan et système de photographie
WO2022041013A1 (fr) Procédé de commande, cardan portatif, système, et support de stockage lisible par ordinateur
WO2022061540A1 (fr) Procédé de commande, procédé de commande de mise au point, appareil, plateforme portative et support de stockage
WO2022061539A1 (fr) Procédé d'adaptation de paramètre, stabilisateur portatif, système et support de stockage lisible par ordinateur
JP2020020878A (ja) 移動体、合焦制御方法、プログラム、及び記録媒体
WO2021248288A1 (fr) Procédé de commande de panoramique/inclinaison, panoramique/inclinaison portatif et support d'informations lisible par ordinateur
WO2022061534A1 (fr) Procédé et appareil de commande de photographie, cardan, moteur électrique de suivi de point et support d'enregistrement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20941868

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20941868

Country of ref document: EP

Kind code of ref document: A1