CN104994297B - Photolocking method and system is surveyed in the focusing that panorama is taken pictures - Google Patents
Photolocking method and system is surveyed in the focusing that panorama is taken pictures Download PDFInfo
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Abstract
The invention discloses a kind of focusings that panorama is taken pictures to survey photolocking method and system, it is by being focused and being surveyed light in the preview mode that panorama is taken pictures, focusing carries out focusing survey photolocking after surveying light success, and it maintains focusing to survey photolocking state to preset focusing and surveys photolocking time range, focusing carries out the angular speed of detection gyroscope and the image information of preview image at the end of surveying the photolocking time, and judges whether unlock focusing and survey light, then judge that light state is surveyed in current focusing when starting panorama and taking pictures, and it notifies camera hardware to be locked or maintained locking focusing to survey light in corresponding position according to current state and starts to shoot, and focus lock state is kept during panorama is taken pictures and surveys photolocking state until shooting terminates；It is mobile so as to effectively solve to generate picture focal length because of continuous auto-focusing, it surveys light guide and causes the variation of image light and shade uneven, eventually lead to panoramic mosaic image and be connected the problems such as of low quality and post-processing is difficult time-consuming, improve panorama and take pictures effect.
Description
Technical field
The present invention relates to field of photographing technology, photolocking method and its application are surveyed in especially a kind of focusing that panorama is taken pictures should
The system of method.
Background technique
Camera function has become the second largest functional module of present smart phone, is the intelligent hand other than telephony feature
The module that machine manufacturer has an effect one after another becomes thin as mobile phone screen size becomes greatly, and it is steady and audible to hold shooting
The difficulty of photo, once mobile phone is on slippery ground or shakes, is just easy to influence final slice success rate with regard to increasing, special
It is not during panorama is taken pictures, user needs to continue cell phone and shoots around object, scene in circular process
Brightness, content change, the mobile equal generation that can all trigger continuous auto-focusing and survey light of mobile phone, and light is surveyed in this frequent focusing
Can be because the shake or unconscious movement that user holds cause to repeat to focus to survey light, this will bring difficulty to shooting, and
Light is surveyed in repetition focusing during being taken pictures due to panorama and many far and near pictures of having recorded a video stretch picture and cannot normally be connected, and is influenced
The problems such as later period imaging precision and image quality, and because the relationship of light causes the variation for surveying light to cause picture brightness uneven
Even the problems such as needing post compensation time-consuming.
In addition, the focusing photometric system of comparative maturity is mainly contrast focusing system on smart phone at present, it passes through
The movement of camera lens compares the readability of the picture of each frame back and forth, and camera lens is then moved to the clearest picture of focus again, because
Back-and-forth motion to be motor can convert the depth of field, and the influence that will receive focusing when being continuously shot grabs the different picture of clarity
Face further affects the of low quality of image synthesis.
Summary of the invention
The present invention surveys photolocking method and system to solve the above problems, providing a kind of focusing that panorama is taken pictures, can
Panoramic picture can not be connected and picture caused by effectively solving the problems, such as unlock focusing and survey light during taking pictures because of panorama
The problem of light and shade unevenness, shooting effect are more preferable.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of focusing that panorama is taken pictures survey photolocking method, which comprises the following steps:
10. light is focused and surveyed in the preview mode that panorama is taken pictures；
20. focusing carries out focusing survey photolocking after surveying light success, and focusing is maintained to survey photolocking state to preset focusing
Survey photolocking time range；
30. at the end of the photolocking time is surveyed in focusing, carrying out the angular speed of detection gyroscope and the picture letter of preview image
Breath, and judge whether unlock focusing and survey light；
40. starting panorama when taking pictures, judges that light state is surveyed in current focusing, and according to current state notify camera hardware into
Row locking maintains locking focusing to survey light in corresponding position, and starts to shoot；
50. panorama keeps focus lock state and surveys photolocking state until shooting terminates during taking pictures.
Preferably, the focusing of the step 20 is surveyed during photolocking, if receiving the initial focusing mould with step 10
When the different focusing of formula instructs, then cancel focus lock immediately, and focus according to the focusing instruction received.
Preferably, the step 20 further comprises:
21. light success is surveyed in focusing, the logical layer notice camera of camera stops hardware focusing movement and software focusing detection, surveys
Light algorithm, and maintain armed state；
22. light failure is surveyed in focusing, then continue the detection that light is surveyed in focusing, and weight is carried out when needing and focusing and survey light
Light is surveyed in new focusing.
Preferably, in the step 20, after photolocking is surveyed in focusing, the logical layer of camera starts timing, and preset
Focusing survey photolocking time range in maintain focusing survey photolocking state, camera hardware focusing movement and software focusing detection,
It surveys light algorithm and is in armed state.
Preferably, in the step 30, unlock focusing is judged whether according to the angular speed of the gyroscope of detection and surveys light,
Mainly by detect in prefixed time interval the angular velocity data in the x, y, z direction of the gyroscope of the camera, compares and work as
The gap of the angular velocity data of the corresponding direction of the angular velocity data and previous frame of all directions of previous frame, when any one direction
Angular velocity data gap be greater than preset threshold when, then light is focused and surveyed again to return step 10.
Preferably, in the step 30, according to the image information of the preview image of detection judge whether unlock focusing and
Light is surveyed, is further included steps of
31. if unlocking focusing the variation degree of the before and after frames of image is greater than preset threshold and surveying light and return step 10；
32. if the variation degree of the before and after frames of image is in preset threshold range, then it represents that focusing state is relatively stable, and
Focusing is maintained to survey photolocking state.
Preferably, in the step 40, camera hardware is notified to be locked or maintained locking to focus according to current state
Light is surveyed in corresponding position, further comprises:
41. if notify camera hardware motor movement to predeterminated position, and lock focusing and survey in focusing status of fail
Start to shoot after light；
If maintaining focusing to survey photolocking state 42. surveying photolocking state in focusing, keeping the locking of camera hardware simultaneously
Start to shoot；
If surveying light 43. surveying after photolocking releasing and do not starting to focus again in focusing, camera hardware is notified to protect
It holds and locks and start to shoot；
If waiting focusing to survey light terminates, and according to the success of focusing photometry result 44. surveying light state in focusing
Or unsuccessfully execute step 41 or step 42.
In addition, the present invention also provides a kind of focusings that panorama is taken pictures to survey photolocking system, characterized in that it comprises:
Light execution module is surveyed in focusing, for being focused and being surveyed light in the preview mode that panorama is taken pictures；
Photolocking module is surveyed in focusing, surveys photolocking for carrying out focusing after light success is surveyed in focusing, and took pictures in panorama
Focus lock state is kept in journey and surveys photolocking state until shooting terminates；
Timing module surveys photolocking time range for maintaining focusing to survey photolocking state to preset focusing；
Photometric solution of focusing locks detection module, for carrying out the angle of detection gyroscope at the end of the photolocking time is surveyed in focusing
The image information of speed and preview image, and judge whether unlock focusing and survey light；
Focusing surveys photo-beat and takes the photograph preceding confirmation module, for judging that light state is surveyed in current focusing when starting panorama is taken pictures, and
Camera hardware is notified to be locked or maintained locking focusing to survey light in corresponding position according to current state；
Panorama photo module, for executing the shooting of panorama.
The beneficial effects of the present invention are:
Photolocking method and system is surveyed in the focusing that a kind of panorama of the invention is taken pictures, and passes through the preview mould taken pictures in panorama
Focused and surveyed light in formula, focusing, which is surveyed after light success, to be carried out focusing and survey photolocking, and focusing is maintained to survey photolocking state to pre-
If focusing survey photolocking time range, focusing survey the photolocking time at the end of carry out detection gyroscope angular speed and preview
The image information of image, and judge whether unlock focusing and survey light, then judge that current focusing is surveyed when starting panorama and taking pictures
Light state, and notify camera hardware to be locked or maintained locking focusing to survey light in corresponding position according to current state and start to clap
It takes the photograph, and keeps focus lock state during panorama is taken pictures and survey photolocking state until shooting terminates；It can not only be effective
It solves to generate the movement of picture focal length because of continuous auto-focusing, surveys light guide and cause the variation of image light and shade uneven, eventually lead to panorama and spell
Map interlinking picture is connected the problems such as of low quality and post-processing is difficult time-consuming, improves panorama and takes pictures effect, and without frequently right
Coke surveys light, reduces operand and power consumption, and either handheld cameras or fixed cameras can obtain preferable focusing and survey
Light effect.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the general flow chart that photolocking method is surveyed in the focusing that a kind of panorama of the present invention is taken pictures；
Fig. 2 is the structural schematic diagram that photolocking system is surveyed in the focusing that a kind of panorama of the present invention is taken pictures；
Fig. 3 is to carry out the effect picture that panorama is taken pictures using the prior art；
Fig. 4 is to survey photolocking method using present invention focusing to carry out the effect picture that panorama is taken pictures.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Closing accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Existing mobile phone on the market or other camera terminals can generally select to begin to carry out when shaking continuous automatic
Focusing, because detection algorithm, which may have detected that current picture needs to focus again, ensures that picture is clear.But it is carrying out entirely
When scape is taken pictures, the consistency for needing height to keep before and after frames picture in the clarity depth of field etc., if weight during panorama is taken pictures
New focusing, the picture of focusing are crawled the splicing for panorama, will seriously affect shooting effect, and bad situation is to cause to shoot
Image can not be connected and high probability fail.
Likewise, causing if panorama generally unavoidably will appear backlight scene during taking pictures using automatic light measuring
Partial picture is very black, and when going to back to the angle of sunlight, picture can become very bright again, and light and shade is caused to have a long way to go (such as Fig. 3 institute
The effect picture shown), need the later period to compensate, and post compensation can consume long time, part accuracy of identification of linking etc. is asked
Topic causes compensation effect uneven.
Accordingly, photolocking method is surveyed in a kind of panorama of the invention is taken pictures focusing, as shown in Figure 1, itself the following steps are included:
10. light is focused and surveyed in the preview mode that panorama is taken pictures；
20. focusing carries out focusing survey photolocking after surveying light success, and focusing is maintained to survey photolocking state to preset focusing
Survey photolocking time range；
30. at the end of the photolocking time is surveyed in focusing, carrying out the angular speed of detection gyroscope and the picture letter of preview image
Breath, and judge whether unlock focusing and survey light；
40. starting panorama when taking pictures, judges that light state is surveyed in current focusing, and according to current state notify camera hardware into
Row locking maintains locking focusing to survey light in corresponding position, and starts to shoot；
50. panorama keeps the lock state of camera hardware motor to terminate until shooting during taking pictures.
The focusing of the step 20 is surveyed during photolocking, if receiving different from the initial focal modes of step 10
When focusing instruction, then cancel focus lock immediately, and focus according to the focusing instruction received, such as first in step 10
Beginning focal modes are autofocus mode, if receiving manual focus instruction during photolocking is surveyed in the focusing of step 20,
Cancel focus lock immediately, and manual focus mode is entered according to the focusing instruction received.
The step 20 further comprises:
21. light success is surveyed in focusing, the logical layer notice camera of camera stops hardware focusing movement and software focusing detection, surveys
Light algorithm, and maintain armed state；
22. light failure is surveyed in focusing, then continue the detection that light is surveyed in focusing, and weight is carried out when needing and focusing and survey light
Light is surveyed in new focusing.
In the step 20, after photolocking is surveyed in focusing, the logical layer of camera starts timing, and surveys light in preset focusing
Focusing is maintained to survey photolocking state within the scope of locking time, light algorithm is surveyed in the hardware focusing movement and software focusing detection of camera
It is in armed state, the shaking of any direction of camera or any variation of scene do not unlock.
In the step 30, unlock focusing is judged whether according to the angular speed of the gyroscope of detection and surveys light, it is main logical
It crosses and detect the angular velocity data in the x, y, z direction of the gyroscope of the camera in prefixed time interval, compare present frame
The gap of the angular velocity data of the corresponding direction of the angular velocity data and previous frame of all directions, when the angle speed in any one direction
When the gap of degree evidence is greater than preset threshold, then light is focused and surveyed again to return step 10.It is completed for example, light is surveyed in focusing
Afterwards, it is re-executed in order to prevent because weak vibrations cause focusing to survey light, therefore carries out focusing and survey photolocking, and set focusing and survey light
Any shaking in photolocking time range is surveyed in focusing afterwards can not all trigger focusing survey light, after the photolocking time is surveyed in focusing,
The shaking situation of mobile phone or other camera terminals, three directions of gyroscope x, y, z are judged by the detection of gyroscope angular speed
As long as there is the difference of the angular velocity data in a direction to be greater than preset threshold, restarts focusing and survey light work, light is surveyed in focusing
Work relies on the new focusing metering mode that the mechanism selection of unlock executes, and new focusing metering mode is surveyed according to the focusing of itself
Light detection algorithm surveys light to execute focusing.
Photolocking method is surveyed according to above-mentioned focusing, it is assumed that the focusing set surveys the photolocking time as 3s, and user is moving always
It starts machine, focusing at this time, which surveys photolocking 3s and unlocks focusing again again, surveys the behavior that light is not sufficient to interfere user, because of user one
Directly finding focus point；On the other hand, if after locking 3s, if detecting gyroscope angular speed in each direction of x, y, z
Value when sensing data each time updates the result that compares be both less than preset threshold, then it represents that user is necessary to ensure that current
It finds a view stabilization, then the focusing photometry result before locking is can to continue to guarantee.
In the step 30, unlock focusing is judged whether according to the image information of the preview image of detection and surveys light, into
One step the following steps are included:
31. if unlocking focusing the variation degree of the before and after frames of image is greater than preset threshold and surveying light and return step 10；
32. if the variation degree of the before and after frames of image is in preset threshold range, then it represents that focusing state is relatively stable, and
Focusing is maintained to survey photolocking state.
The detection module for also focusing and surveying light during executing step 32 works on, when a threshold is reached unlock focusing
With survey light and return step 10.
In the step 40, camera hardware is notified to be locked or maintained locking focusing to survey light right according to current state
Position is answered, further comprises:
41. if notify camera hardware motor movement to predeterminated position, and lock focusing and survey in focusing status of fail
Start to shoot after light；
If maintaining focusing to survey photolocking state 42. surveying photolocking state in focusing, keeping the locking of camera hardware simultaneously
Start to shoot；
If surveying light 43. surveying after photolocking releasing and do not starting to focus again in focusing, camera hardware is notified to protect
It holds and locks and start to shoot；
If waiting focusing to survey light terminates, and according to the success of focusing photometry result 44. surveying light state in focusing
Or unsuccessfully execute step 41 or step 42.
As shown in Fig. 2, the present invention also provides a kind of focusings that panorama is taken pictures to survey photolocking system comprising:
Light execution module A is surveyed in focusing, for being focused and being surveyed light in the preview mode that panorama is taken pictures；
Photolocking module B is surveyed in focusing, surveys photolocking for carrying out focusing after light success is surveyed in focusing, and took pictures in panorama
The lock state of camera hardware motor is kept to terminate until shooting in journey；
Timing module C surveys photolocking time range for maintaining focusing to survey photolocking state to preset focusing；
Photometric solution of focusing locks detection module D, for carrying out the angle of detection gyroscope at the end of the photolocking time is surveyed in focusing
The image information of speed and preview image, and judge whether unlock focusing and survey light；
Confirmation module E before photo-beat is taken the photograph is surveyed in focusing, for judging that light state is surveyed in current focusing when starting panorama is taken pictures,
And camera hardware is notified to be locked or maintained locking focusing to survey light in corresponding position according to current state；
Panorama photo module F, for executing the shooting of panorama.
The present invention is applicable not only to the scene of hand-held camera terminal, is more advantageous to through tripod establishing shot terminal, rotation
Turn bracket to pan.
Shooting of the present invention terminates, and is primarily referred to as user's clicking operation and carries out end shooting, or shooting length reaches
It carries out ending automatically shooting to preset upper limit.It is emphasized that during pan-shot, focusing and survey light it is general simultaneously into
Row, carries out survey photolocking when focus lock simultaneously, and focusing unlock when carries out photometric solution lock simultaneously, and is touching again
Also retriggered is carried out when hair focusing simultaneously and surveys light；Also, from starting shooting, camera hardware belongs to lock shape of awaiting orders
State forbids any click event of screen at this time, cannot re-start focusing and survey light, so that picture is maintained at the unified depth of field
It is shot under (clarity range) and light environment until terminating.In addition, user can independently select after photolocking is surveyed in focusing
The initial position of shooting is typically chosen in the shooting preferable position of brightness and carries out starting to shoot, focuses in this case
The effect for surveying photolocking is best, so as to make whole panoramic picture clarity and brightness effect it is best, such as from back
The position of sunlight is started to shoot, until the position (i.e. backlight environment) of face sunlight, entire picture can still keep opposite
Consistent brightness (effect picture as shown in Figure 4).
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For system class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.Also, herein, the terms "include", "comprise" or its any other variant
It is intended to non-exclusive inclusion, so that including that the process, method, article or equipment of a series of elements not only includes
Those elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of person's equipment.In the absence of more restrictions, the element limited by sentence "including a ...", not
There is also other identical elements in the process, method, article or apparatus that includes the element for exclusion.In addition, this field
Those of ordinary skill is understood that realize that all or part of the steps of above-described embodiment may be implemented by hardware, can also lead to
Program is crossed to instruct relevant hardware to complete, the program can store in a kind of computer readable storage medium, above-mentioned
The storage medium mentioned can be read-only memory, disk or CD etc..
The preferred embodiment of the present invention has shown and described in above description, it should be understood that the present invention is not limited to this paper institute
The form of disclosure, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and energy
Enough in this paper invented the scope of the idea, modifications can be made through the above teachings or related fields of technology or knowledge.And people from this field
The modifications and changes that member is carried out do not depart from the spirit and scope of the present invention, then all should be in the protection of appended claims of the present invention
In range.
Claims (7)
1. photolocking method is surveyed in a kind of focusing that panorama is taken pictures, which comprises the following steps:
10. light is focused and surveyed in the preview mode that panorama is taken pictures；
20. focusing carries out focusing survey photolocking after surveying light success, and maintains focusing to survey photolocking state to preset focusing and survey light
Locking time range；
At the end of 30. the photolocking time is surveyed in focusing, the angular speed of detection gyroscope and the image information of preview image are carried out, and
Judge whether unlock focusing and surveys light；
40. starting panorama is taken pictures, judge that light state is surveyed in current focusing, and notify that camera hardware is locked according to current state
Fixed or maintenance locking focusing surveys light in corresponding position, and starts to shoot；
50. panorama keeps focus lock state and surveys photolocking state until shooting terminates during taking pictures；
Wherein, in the step 30, unlock focusing is judged whether according to the angular speed of the gyroscope of detection and surveys light, is to pass through
Detect the angular velocity data in the x, y, z direction of the gyroscope of the camera in prefixed time interval, compares each of present frame
The gap of the angular velocity data of the corresponding direction of the angular velocity data and previous frame in a direction, when the angular speed in any one direction
When the gap of data is greater than preset threshold, then light is focused and surveyed again to return step 10.
2. photolocking method is surveyed in the focusing that a kind of panorama according to claim 1 is taken pictures, it is characterised in that: the step
20 focusing is surveyed during photolocking, if receive the focusing instructions different from the initial focal modes of step 10, immediately
Cancel focus lock, and is focused according to the focusing instruction received.
3. photolocking method is surveyed in the focusing that a kind of panorama according to claim 1 is taken pictures, it is characterised in that: the step
20 further comprise:
21. the logical layer notice camera stopping hardware focusing of focusing survey light success, camera moves and software focusing detects, surveys light calculation
Method, and maintain armed state；
Fail 22. light is surveyed in focusing, then continues to focus and survey the detection of light, and progress is again right when needing to focus survey light
Coke surveys light.
4. photolocking method is surveyed in the focusing that a kind of panorama according to claim 1 is taken pictures, it is characterised in that: the step
In 20, after photolocking is surveyed in focusing, the logical layer of camera starts timing, and surveys in photolocking time range and maintain in preset focusing
Photolocking state is surveyed in focusing, and the hardware of camera, which focuses to move, is in armed state with software focusing detection, survey light algorithm.
5. photolocking method is surveyed in the focusing that a kind of panorama according to claim 1 or 2 or 3 or 4 is taken pictures, it is characterised in that:
In the step 30, unlock focusing is judged whether according to the image information of the preview image of detection and surveys light, further comprises
Following steps:
31. if unlocking focusing the variation degree of the before and after frames of image is greater than preset threshold and surveying light and return step 10；
32. if the variation degree of the before and after frames of image is in preset threshold range, then it represents that focusing state is relatively stable, and maintains
Photolocking state is surveyed in focusing.
6. photolocking method is surveyed in the focusing that a kind of panorama according to claim 1 or 2 or 3 or 4 is taken pictures, it is characterised in that:
In the step 40, camera hardware is notified to be locked or maintained locking focusing to survey light in corresponding position according to current state,
Further comprise:
41. if notify camera hardware motor movement to predeterminated position in focusing status of fail, and after locking focusing and surveying light
Start to shoot；
If maintaining focusing to survey photolocking state 42. surveying photolocking state in focusing, keeping the locking of camera hardware and beginning
Shooting；
If surveying light 43. surveying after photolocking releasing and do not starting to focus again in focusing, camera hardware is notified to keep lock
Determine and starts to shoot；
If waiting focusing to survey light terminates, and according to the success or mistake of focusing photometry result 44. surveying light state in focusing
It loses and executes step 41 or step 42.
7. photolocking system is surveyed in a kind of focusing that panorama is taken pictures, characterized in that it comprises:
Light execution module is surveyed in focusing, for being focused and being surveyed light in the preview mode that panorama is taken pictures；
Photolocking module is surveyed in focusing, surveys photolocking for carrying out focusing after light success is surveyed in focusing, and during panorama is taken pictures
It keeps focus lock state and surveys photolocking state until shooting terminates；
Timing module surveys photolocking time range for maintaining focusing to survey photolocking state to preset focusing；
Photometric solution of focusing locks detection module, for carrying out the angular speed of detection gyroscope at the end of the photolocking time is surveyed in focusing
And the image information of preview image, and judge whether unlock focusing and survey light；
Focusing surveys photo-beat and takes the photograph preceding confirmation module, for when starting panorama and taking pictures, judging that light state is surveyed in current focusing, and according to
Current state notice camera hardware is locked or is maintained locking focusing to survey light in corresponding position；
Panorama photo module, for executing the shooting of panorama；
Wherein, in focusing photometric solution lock detection module, unlock pair is judged whether according to the angular speed of the gyroscope of detection
Burnt and survey light, is the angular velocity data by detect in prefixed time interval the x, y, z direction of the gyroscope of the camera,
The gap for comparing the angular velocity data of the angular velocity data of all directions of present frame and the corresponding direction of previous frame, when any one
The gap of the angular velocity data in a direction be greater than preset threshold when, then return focusing survey light execution module carry out again focusing and
Survey light.
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| CN104954695B (en) * | 2015-07-14 | 2018-03-30 | 厦门美图之家科技有限公司 | A kind of focus lock method and system of video capture |
| CN109416458B (en) * | 2016-06-30 | 2022-01-11 | 株式会社尼康 | Camera with a camera module |
| CN106161967B (en) * | 2016-09-13 | 2020-03-17 | 维沃移动通信有限公司 | Backlight scene panoramic shooting method and mobile terminal |
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