CN110248078A - A kind of exposure parameter acquisition methods of panoramic picture - Google Patents

A kind of exposure parameter acquisition methods of panoramic picture Download PDF

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Publication number
CN110248078A
CN110248078A CN201910672098.8A CN201910672098A CN110248078A CN 110248078 A CN110248078 A CN 110248078A CN 201910672098 A CN201910672098 A CN 201910672098A CN 110248078 A CN110248078 A CN 110248078A
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CN
China
Prior art keywords
angle
camera lens
revolutions
parameter
rotating device
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Pending
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CN201910672098.8A
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Chinese (zh)
Inventor
沈峘
张佩泽
程百顺
王汉全
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NANJING HONGZHONG ELECTRONIC TECHNOLOGY Co Ltd
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NANJING HONGZHONG ELECTRONIC TECHNOLOGY Co Ltd
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Publication of CN110248078A publication Critical patent/CN110248078A/en
Priority to PCT/CN2020/097363 priority Critical patent/WO2021012854A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • 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
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • 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
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

The present invention discloses a kind of exposure parameter acquisition methods of panoramic picture, include the following steps: for lens module to connect with rotating device, the rotation angle and number of revolutions parameter of rotating device are set, rotating device drives lens module to rotate to Difference angles according to setup parameter；After the camera lens of lens module often turns to an angle position, light is surveyed to current field angle, obtains exposure parameter；After rotating device drives lens module to turn to the last one survey angular, lens module is merged in the multiple groups exposure parameter that whole angle positions obtain, obtains fusion exposure parameter, which is unified exposure parameter when panoramic picture is shot.Using exposure parameter acquisition methods of the invention, the pan-shot being suitable under complicated light environment.

Description

A kind of exposure parameter acquisition methods of panoramic picture
Technical field
The present invention relates to a kind of field of camera technology, the technical field for shooting and generating more particularly, to panoramic picture.
Background technique
Panorama sketch passes through the forms, as far as possible multilist such as the expression means of wide-angle and drawing, photograph, video, threedimensional model Reveal the environment of surrounding.360 panoramas by the image information that captures entire scene to mm professional camera special or use modeling software Picture after rendering carries out picture split using software, and is played out with special player, i.e., by planar picture or Computer modeling picture becomes 360 degree and sees entirely, browses for virtual reality, two-dimensional plan view is modeled to true three-dimensional space Between, it is presented to audience.Panoramic picture records the information in 360 degree of spaces, and panoramic picture can be drawn when showing by hand dragged image Face is browsed, 360 degree of characteristics recorded entirely and unique viewing experience, so that panoramic picture is in multiple fields, such as hotel Displaying, house property displaying, car show etc. are used widely, and viewer, which stays indoors, although it is understood that the practical feelings in hotel etc. Condition, panorama displaying greatly facilitate people's lives.
Panoramic picture is different by multiple shooting angle but adjacent angular between field angle have the image mosaic of overlapping merge and At, based on panoramic picture can 360 degree of record spaces characteristic, panoramic picture can be used for house property, automobile, museum, scenic spot etc. Displaying, while cooperate VR glasses use can bring experience on the spot in person.As it can be seen that the application scenarios of panoramic picture are a variety of Various and light environment is complicated different.If acquiring image by separate exposures, since light environment is inconsistent, neighbor map The brightness of picture can light and shade it is different, cause the image for finally splice different zones in obtained panoramic picture have it is bright have dark, destruction is entirely The globality of scape image.Alternatively, the exposure parameter of image is the same under setting different angle when shooting, such panoramic picture can be solved Light and shade inconsistence problems, if but the setting of the fixation exposure parameter according to half-light environment, exposure parameter, which can adjust, makes half-light Environment is brighter, however same exposure parameter can make region overexposure brighter under other angles, and similarly, exposure parameter is according to bright Luminous environment is arranged, then brighter areas normal exposure, but the lower region of brightness will necessarily be partially dark.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide one kind to be suitable for complicated light environment Panoramic picture shooting in exposure parameter acquisition methods.
Technical solution: the exposure parameter acquisition methods of panoramic picture of the present invention include the following steps:
Lens module is connect with rotating device, is set and is rotated according to the field angle of the size of panoramic picture and lens module The rotation angle and number of revolutions parameter of device, rotating device drive lens module to rotate to different angle position according to setup parameter It sets；
After the camera lens of lens module often turns to an angle position, light is surveyed to current field angle, obtains exposure parameter；
After rotating device drives lens module to turn to the last one survey angular, by lens module in whole angle positions The multiple groups exposure parameter of acquisition merges, and obtains fusion exposure parameter, which is unification when panoramic picture is shot Exposure parameter.
Further preferably technical solution is the present invention, when the angle of view of lens module is greater than 180 degree, the rotation The rotation angle parameter of device includes that lens module rotates to the rotation angle of different longitude stations or rotates to different latitude position The rotation angle set；The number of revolutions parameter of the rotating device includes the rotation time that lens module rotates to different longitude stations Number or the number of revolutions for rotating to different latitude position；
When the angle of view of lens module is less than or equal to 180 degree, the rotation angle parameter of the rotating device includes Lens module rotates to the rotation angle of different longitude stations and rotates to the rotation angle of different latitude position；The rotating dress The number of revolutions parameter set includes that lens module rotates to the number of revolutions of different longitude stations and rotates to different latitude position Number of revolutions.
Longitude station is corresponding with the course angle of camera lens, and Position Latitude is corresponding with the pitch angle of camera lens.
Preferably, the rotation angle and number of revolutions parameter of the rotating device are input from the outside setting or pass through rotation The control mould group calculating of rotary device automatically determines.
Preferably, the calculating of the rotation angle and number of revolutions parameter of rotating device includes the rotation angle in longitudinal With the rotation angle and number of revolutions calculating on number of revolutions calculating and latitude direction；
In longitudinal, the horizontal field of view angle of camera lens is θ _ hor, and the overlapping that two neighboring longitude station camera lens surveys light is arranged Field angle is d ψ _ hor, then when camera lens is rotated from the first longitude station to the second longitude station, need rotational angle be θ _ hor-d ψ _ Hor, if the horizontal field of view angle of panoramic picture is φ, φ≤360 degree, then the horizontal rotation number of camera lens is calculated as φ/(θ _ hor- D ψ _ hor) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the horizontally overlapping field angle of light, camera lens It rotates horizontally number and is calculated as φ/θ _ hor-1, if calculated value is decimal, is rounded and adds 1；
On latitude direction, the vertical field angle of camera lens is θ _ ver, and the overlapped fov of two neighboring Position Latitude image is arranged Angle is d ψ _ ver, then when camera lens is rotated from the first Position Latitude to the second Position Latitude, needing rotational angle is θ _ ver-d ψ _ ver, The vertical field angle that panoramic picture is arranged is φ, and φ≤360 degree, then the vertical number of revolutions of camera lens is calculated as φ/(θ _ ver-d ψ _ ver) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the vertical overlapped fov angle of light, camera lens Vertical number of revolutions is calculated as φ/θ _ ver-1, if calculated value is decimal, is rounded and adds 1.
Preferably, the camera lens of lens module surveys light to current field angle using auto exposure mode.
Preferably, it includes time for exposure, gain and aperture that the camera lens of lens module, which surveys the exposure parameter that light obtains,.
The utility model has the advantages that using exposure parameter acquisition methods of the invention, the pan-shot being suitable under complicated light environment, By merging the exposure parameter of image under different angle in advance and setting fusion exposure ginseng for the exposure parameter of image when shooting Number, light and shade is consistent to obtain, and the panoramic picture of luminance proportion, and in image mosaic, due to consistent exposure ginseng Number is easily found the linked character in adjacent two picture registration regions, reduces calculation amount.
Detailed description of the invention
Fig. 1 is that lens module surveys light schematic diagram in longitudinal in embodiment；
Fig. 2 is that lens module surveys light schematic diagram on latitude direction in embodiment.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to The embodiment.
Embodiment: a kind of exposure parameter acquisition methods of panoramic picture include the following steps:
(1) lens module is connect with rotating device, obtain the angle of view and surveys coincidence field angle needed for light, calculated and survey The rotation angle of light time camera lens obtains panoramic picture field angle, and according to rotation of lens angle calculation rotation of lens number.
When the angle of view of lens module is greater than 180 degree, the rotation angle of rotating device can only according to a direction into Row, to reduce the number for surveying light, rotation angle parameter includes the rotation angle or rotation that lens module rotates to different longitude stations Go to the rotation angle of different latitude position；The number of revolutions parameter of rotating device includes that lens module rotates to different longitude positions The number of revolutions set or the number of revolutions for rotating to different latitude position；
When the angle of view of lens module is less than or equal to 180 degree, the rotation angle parameter of rotating device includes camera lens Mould group rotates to the rotation angle of different longitude stations and rotates to the rotation angle of different latitude position；The rotation of rotating device Count parameter includes that lens module rotates to the number of revolutions of different longitude stations and rotates to the rotation time of different latitude position Number.Longitude station is corresponding with the course angle of camera lens, and Position Latitude is corresponding with the pitch angle of camera lens.
In longitudinal, the horizontal field of view angle of camera lens is θ _ hor, and the overlapping that two neighboring longitude station camera lens surveys light is arranged Field angle is d ψ _ hor, then when camera lens is rotated from the first longitude station to the second longitude station, need rotational angle be θ _ hor-d ψ _ Hor, if the horizontal field of view angle of panoramic picture is φ, φ≤360 degree, then the horizontal rotation number of camera lens is calculated as φ/(θ _ hor- D ψ _ hor) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the horizontally overlapping field angle of light, camera lens It rotates horizontally number and is calculated as φ/θ _ hor-1, if calculated value is decimal, is rounded and adds 1；
On latitude direction, the vertical field angle of camera lens is θ _ ver, and the overlapped fov of two neighboring Position Latitude image is arranged Angle is d ψ _ ver, then when camera lens is rotated from the first Position Latitude to the second Position Latitude, needing rotational angle is θ _ ver-d ψ _ ver, The vertical field angle that panoramic picture is arranged is φ, and φ≤360 degree, then the vertical number of revolutions of camera lens is calculated as φ/(θ _ ver-d ψ _ ver) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the vertical overlapped fov angle of light, camera lens Vertical number of revolutions is calculated as φ/θ _ ver-1, if calculated value is decimal, is rounded and adds 1.
(2) rotating device drives lens module to rotate to Difference angles according to setup parameter；The camera lens of lens module After often turning to an angle position, light is surveyed to current field angle using auto exposure mode, obtains exposure parameter, exposure parameter Including time for exposure, gain and aperture；
(3) after rotating device drives lens module to turn to the last one survey angular, by lens module in whole angles The multiple groups exposure parameter of position acquisition merges, and obtains fusion exposure parameter, which is when panoramic picture is shot Unified exposure parameter.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right Various changes can be made in the form and details for it.

Claims (6)

1. a kind of exposure parameter acquisition methods of panoramic picture, which comprises the steps of:
Lens module is connect with rotating device, the rotation angle and number of revolutions parameter, rotating device for setting rotating device are pressed Lens module is driven to rotate to Difference angles according to setup parameter；
After the camera lens of lens module often turns to an angle position, light is surveyed to current field angle, obtains exposure parameter；
After rotating device drives lens module to turn to the last one survey angular, lens module is obtained in whole angle positions The fusion of multiple groups exposure parameter, obtain fusion exposure parameter, which is unified exposure when panoramic picture is shot Parameter.
2. the exposure parameter acquisition methods of panoramic picture according to claim 1, which is characterized in that the camera lens of lens module When field angle is greater than 180 degree, the rotation angle parameter of the rotating device includes that lens module rotates to different longitude stations Rotation angle or the rotation angle for rotating to different latitude position；The number of revolutions parameter of the rotating device includes lens module It rotates to the number of revolutions of different longitude stations or rotates to the number of revolutions of different latitude position；
When the angle of view of lens module is less than or equal to 180 degree, the rotation angle parameter of the rotating device includes camera lens Mould group rotates to the rotation angle of different longitude stations and rotates to the rotation angle of different latitude position；The rotating device Number of revolutions parameter includes that lens module rotates to the number of revolutions of different longitude stations and rotates to the rotation of different latitude position Turn number；
Longitude station is corresponding with the course angle of camera lens, and Position Latitude is corresponding with the pitch angle of camera lens.
3. the exposure parameter acquisition methods of panoramic picture according to claim 2, which is characterized in that the rotating device Rotation angle and number of revolutions parameter are input from the outside setting or are automatically determined by the control mould group calculating of rotating device.
4. the exposure parameter acquisition methods of panoramic picture according to claim 3, which is characterized in that the rotation of rotating device The calculating of angle and number of revolutions parameter is comprising in the rotation angle and number of revolutions calculating and latitude direction in longitudinal Rotation angle and number of revolutions calculate；
In longitudinal, the horizontal field of view angle of camera lens is θ _ hor, and the overlapped fov that two neighboring longitude station camera lens surveys light is arranged Angle is d ψ _ hor, then when camera lens is rotated from the first longitude station to the second longitude station, needing rotational angle is θ _ hor-d ψ _ hor, If the horizontal field of view angle of panoramic picture be φ, φ≤360 degree, then the horizontal rotation number of camera lens be calculated as φ/(θ _ hor-d ψ _ Hor) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the horizontally overlapping field angle of light, the water of camera lens Flat number of revolutions is calculated as φ/θ _ hor-1, if calculated value is decimal, is rounded and adds 1；
On latitude direction, the vertical field angle of camera lens is θ _ ver, and the overlapped fov angle that two neighboring Position Latitude image is arranged is D ψ _ ver, then when camera lens is rotated from the first Position Latitude to the second Position Latitude, needing rotational angle is θ _ ver-d ψ _ ver, setting The vertical field angle of panoramic picture be φ, φ≤360 degree, then the vertical number of revolutions of camera lens be calculated as φ/(θ _ ver-d ψ _ Ver) -1, if calculated value is decimal, it is rounded and adds 1；If it is 0 that camera lens, which is arranged, to survey the vertical overlapped fov angle of light, camera lens is erected Straight number of revolutions is calculated as φ/θ _ ver-1, if calculated value is decimal, is rounded and adds 1.
5. the exposure parameter acquisition methods of panoramic picture according to claim 1, which is characterized in that the camera lens of lens module Light is surveyed to current field angle using auto exposure mode.
6. the exposure parameter acquisition methods of panoramic picture according to claim 5, which is characterized in that the camera lens of lens module Surveying the exposure parameter that light obtains includes time for exposure, gain and aperture.
CN201910672098.8A 2019-02-14 2019-07-24 A kind of exposure parameter acquisition methods of panoramic picture Pending CN110248078A (en)

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CN201910114591.8A Pending CN109743489A (en) 2019-02-14 2019-02-14 A kind of rotary camera and big visual angle method, photo taking
CN201910672923.4A Pending CN110213475A (en) 2019-02-14 2019-07-24 A kind of image pickup method of panoramic picture
CN201910672098.8A Pending CN110248078A (en) 2019-02-14 2019-07-24 A kind of exposure parameter acquisition methods of panoramic picture
CN201910672949.9A Pending CN110248079A (en) 2019-02-14 2019-07-24 A kind of full view image generating system and panorama image generation method
CN201921172398.1U Active CN209897158U (en) 2019-02-14 2019-07-24 Monocular panoramic camera

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CN114979505A (en) * 2022-05-27 2022-08-30 众趣（北京）科技有限公司 Method and device for rotatably shooting panorama

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JP7166470B2 (en) * 2019-10-24 2022-11-07 三菱電機株式会社 Image generation system, image processing device, program and recording medium
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CN111784586B (en) * 2020-05-25 2022-10-18 清华大学 Self-supervision learning panoramic image horizontal correction method and system
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CN112637585A (en) * 2020-12-15 2021-04-09 上海交通建设总承包有限公司 Correction method for perspective dislocation phenomenon in panoramic shooting process of single lens reflex camera
CN113099111A (en) * 2021-03-30 2021-07-09 广东拓斯达科技股份有限公司 Dispensing track generation method and device, electronic equipment and storage medium
CN113744339B (en) * 2021-11-05 2022-02-08 贝壳技术有限公司 Method and device for generating panoramic image, electronic equipment and storage medium
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CN114979505A (en) * 2022-05-27 2022-08-30 众趣（北京）科技有限公司 Method and device for rotatably shooting panorama

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CN110248079A (en) 2019-09-17
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CN110213475A (en) 2019-09-06
CN109743489A (en) 2019-05-10
CN209897158U (en) 2020-01-03

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Application publication date: 20190917