CN105652560A - Photographing method and system capable of automatically adjusting focal length - Google Patents
Photographing method and system capable of automatically adjusting focal length Download PDFInfo
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- CN105652560A CN105652560A CN201610053264.2A CN201610053264A CN105652560A CN 105652560 A CN105652560 A CN 105652560A CN 201610053264 A CN201610053264 A CN 201610053264A CN 105652560 A CN105652560 A CN 105652560A
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- head portrait
- image information
- head
- focal length
- camera lens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- 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
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a photographing method and system capable of automatically adjusting a focal length. The method comprises the following steps: obtaining a head portrait photographed by a camera lens; analyzing the head portrait to obtain head portrait information corresponding to the head portrait; and when determining that the head portrait information is not complete, adjusting the focal length of the camera lens until the head portrait information is complete. According to the photographing method and system, when the head portrait information corresponding to the head portrait photographed by the camera lens is not complete, the focal length of the camera lens is automatically adjusted, so that the head portraits of persons participating the photographing can be completely photographed by the camera lens, and furthermore, the head portraits of the persons participating the photographing can be in the same picture; and a condition that face information and head information in the photographed picture are not complete is avoided, and user experience is improved.
Description
Technical field
The present invention relates to shooting technology field, particularly relate to a kind of photographic method being automatically adjusted focal length and system.
Background technology
Along with popularizing of the digital equipment such as intelligent terminal, camera; take pictures at any time the part having become people to live; take pictures together with friend and more become one way of life enjoyment; but when many people take pictures together; when particularly autodyning, it will usually the incomplete situation of head portrait that lens shooting arrives occurs, particularly in lens edge position; due to lens focus is too small can not by all complete the photographing of people that all of participation is taken pictures, it is impossible to make so the people participating in taking pictures can be within same picture. The present invention by lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, make to participate in that the face of people taken pictures and head can both be complete is arrived by lens shooting, make the people that all participations are taken pictures can be within same picture, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
Summary of the invention
The present invention by lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, the head portrait of people making to participate in take pictures can be complete arrived by lens shooting, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
For reaching this purpose, the present invention by the following technical solutions:
First aspect, the present invention proposes a kind of photographic method being automatically adjusted focal length, including:
Obtain the head portrait that lens shooting arrives;
Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding;
Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
Wherein, after the head portrait that described acquisition lens shooting arrives, also include:
Obtain the distance between described head portrait and described camera lens.
Wherein, described described head portrait is analyzed, obtain head image information corresponding to described head portrait particularly as follows:
Distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtains the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
Wherein, the focal length of described adjustable lens also comprises determining that the focal length of described camera lens after making described head image information complete.
Wherein, described head image information includes facial information and header information.
Second aspect, the present invention proposes a kind of camera system being automatically adjusted focal length, including: head portrait acquisition module, the first analysis module and focus adjustment module;
Described head portrait acquisition module: for obtaining the head portrait that lens shooting arrives;
Described first analysis module: for described head portrait is analyzed, obtain the head image information that described head portrait is corresponding;
Described focus adjustment module: being used for determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
Wherein, distance acquisition module is also included;
Described distance acquisition module: for obtaining the distance between described head portrait and described camera lens.
Wherein, also include focusing module;
Described focus module: for determining the focal length of described camera lens.
Wherein, the second analysis module is also included;
Described second analysis module: for the distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtain the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
The third aspect, the present invention proposes a kind of camera arrangement including the above-mentioned camera system being automatically adjusted focal length.
The method have the benefit that the present invention is by obtaining the head portrait that lens shooting arrives; Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding; Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete; Lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, the head portrait of people making to participate in take pictures can be complete arrived by lens shooting, the people participating in taking pictures make so can be within same picture, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the embodiment of the method one of the photographic method being automatically adjusted focal length provided by the invention.
Fig. 2 is the method flow diagram of the embodiment of the method two of the photographic method being automatically adjusted focal length provided by the invention.
Fig. 3 is the functional block diagram of the system embodiment one of the camera system being automatically adjusted focal length provided by the invention.
Fig. 4 is the functional block diagram of the system embodiment two of the camera system being automatically adjusted focal length provided by the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate technical scheme by specific embodiment.
Embodiment one
Reference Fig. 1, a kind of photographic method being automatically adjusted focal length, including:
The head portrait that S101, acquisition lens shooting arrive.
The head portrait of the people that participation is taken pictures being shot, obtains the head portrait that camera lens can photograph, wherein, described head portrait includes face corresponding to head portrait in camera lens and head.
S102, described head portrait is analyzed, obtains the head image information that described head portrait is corresponding.
Wherein, by head portrait recognition function to lens shooting to head portrait be analyzed.
The analysis method present invention adopted is not specifically limited, and the method such as head portrait feature extraction or head portrait contours extract all can realize the function that the head portrait photographed is analyzed.
Described head portrait is analyzed by the present embodiment include the face that object is corresponding and head is analyzed, obtain head image information corresponding to described head portrait and include obtaining facial information corresponding to this head image information and header information; Facial information and header information are all analyzed, if facial information is imperfect, then it is assumed that corresponding head image information is imperfect, or header information is imperfect, the head image information being also considered as correspondence is imperfect, or facial information and header information are all imperfect, and the head image information being also considered as correspondence is imperfect.
S103, determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
Wherein, the imperfect facial information namely photographing head portrait corresponding of head image information is imperfect, and/or by imperfect for the header information that photographs head portrait corresponding; Such as, when taking pictures, the only half of head portrait of the people of lens edge is in camera lens, the facial information that now this head image information is corresponding has lacked some part relative to complete facial information, and header information corresponding to this head image information has also lacked some part relative to complete header information, then may determine that this head image information is imperfect; Or the facial face photographing head portrait corresponding are in camera lens, but the crown, chin or ear be not in camera lens, then now photographing facial information corresponding to head portrait is complete relative to complete facial information, profile consistent with the profile of preset complete facial face, but it is imperfect relative to complete header information to photograph header information corresponding to head portrait, it is also possible to determine that this head image information is imperfect.
If it is determined that the head image information in camera lens is imperfect, then the focal length of adjustable lens makes described head image information complete, the focal length of adjustable lens, the focal length making camera lens increases, when the invariant position of the personage of shooting, the picture area that camera lens can photograph increases, so that the head image information in camera lens is complete, make to participate in that the face of people taken pictures and head can both be complete is arrived by lens shooting, make so the people participating in taking pictures can be within same picture.
The present embodiment is by obtaining the head portrait that lens shooting arrives; Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding; Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete; By lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, the head portrait of people making to participate in take pictures can be complete arrived by lens shooting, make the people that all participations are taken pictures can be within same picture, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
Embodiment two
With reference to Fig. 2, another kind is automatically adjusted the photographic method of focal length, including:
The head portrait that S201, acquisition lens shooting arrive.
The head portrait of the people that participation is taken pictures being shot, obtains the head portrait that camera lens can photograph, wherein, described head portrait includes face corresponding to head portrait in camera lens and head.
S202, the distance obtained between described head portrait and described camera lens.
After obtaining the head portrait of the people that participation is taken pictures, obtain the distance between this head portrait and camera lens by range sensor.
S203, the distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtains the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
Specific analytical method now is identical with step S102, with step S102 the difference is that the object now analyzed is only the head image information that the distance between camera lens is corresponding less than or equal to the head portrait of preset distance threshold value; The concrete numerical value of preset distance threshold value is not limited by the present invention, it is preferred that preset distance threshold value could be arranged to 1 meter, 3 meters or 5 meters.
The head image information that now acquisition head portrait is corresponding is the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
Distance between camera lens is not dealt with more than the head portrait of preset distance threshold value, it is possible to the passerby effectively got rid of at a distance in the camera lens interference to focusing of taking pictures.
S204, determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
This step is identical with step S103, repeats no more herein.
S205, determine the focal length of described camera lens.
When the head image information in camera lens is complete, namely the head portrait of the people that described participation is taken pictures all complete in same picture after, the focal length of camera lens is determined, the focal length of camera lens no longer changes, and waits the instruction determining shooting to be obtained.
The present embodiment adds the acquisition of the distance between head portrait and described camera lens on the basis of embodiment one, distance between camera lens is not dealt with more than the head portrait of preset distance threshold value, it is possible to the passerby effectively got rid of at a distance in the camera lens interference to focusing of taking pictures.
Embodiment three
With reference to Fig. 3, a kind of camera system being automatically adjusted focal length, including head portrait acquisition module the 101, first analysis module 102 and focus adjustment module 103;
Head portrait acquisition module 101: for obtaining the head portrait that lens shooting arrives.
The head portrait of the people that participation is taken pictures being shot, obtains the head portrait that camera lens can photograph, wherein, described head portrait includes face corresponding to head portrait in camera lens and head.
First analysis module 102: for described head portrait is analyzed, obtain the head image information that described head portrait is corresponding.
Wherein, by head portrait recognition function to lens shooting to head portrait be analyzed.
The analysis method present invention adopted is not specifically limited, and the method such as head portrait feature extraction or head portrait contours extract all can realize the function that the head portrait photographed is analyzed.
Described head portrait is analyzed by the present embodiment include the face that object is corresponding and head is analyzed, obtain head image information corresponding to described head portrait and include obtaining facial information corresponding to this head image information and header information; Facial information and header information are all analyzed, if facial information is imperfect, then it is assumed that corresponding head image information is imperfect, or header information is imperfect, the head image information being also considered as correspondence is imperfect, or facial information and header information are all imperfect, and the head image information being also considered as correspondence is imperfect.
Focus adjustment module 103: being used for determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
Wherein, the imperfect facial information namely photographing head portrait corresponding of head image information is imperfect, and/or by imperfect for the header information that photographs head portrait corresponding; Such as, when taking pictures, the only half of head portrait of the people of lens edge is in camera lens, the facial information that now this head image information is corresponding has lacked some part relative to complete facial information, and header information corresponding to this head image information has also lacked some part relative to complete header information, then may determine that this head image information is imperfect; Or the facial face photographing head portrait corresponding are in camera lens, but the crown, chin or ear be not in camera lens, then now photographing facial information corresponding to head portrait is complete relative to complete facial information, profile consistent with the profile of preset complete facial face, but it is imperfect relative to complete header information to photograph header information corresponding to head portrait, it is also possible to determine that this head image information is imperfect.
If it is determined that the head image information in camera lens is imperfect, then the focal length of adjustable lens makes described head image information complete, the focal length of adjustable lens, the focal length making camera lens increases, when the invariant position of the personage of shooting, the picture area that camera lens can photograph increases, so that the head image information in camera lens is complete, make to participate in that the face of people taken pictures and head can both be complete is arrived by lens shooting, make so the people participating in taking pictures can be within same picture.
The present embodiment passes through head portrait acquisition module the 101, first analysis module 102 and focus adjustment module 103 thus obtaining the head portrait that lens shooting arrives; Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding; Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete; By lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, the head portrait of people making to participate in take pictures can be complete arrived by lens shooting, make the people that all participations are taken pictures can be within same picture, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
Embodiment four
With reference to Fig. 4, another kind is automatically adjusted the camera system of focal length, including head portrait acquisition module 201, distance acquisition module the 202, second analysis module 203, focus adjustment module 204 with focus module 205;
Head portrait acquisition module 201: for obtaining the head portrait that lens shooting arrives.
The head portrait of the people that participation is taken pictures being shot, obtains the head portrait that camera lens can photograph, wherein, described head portrait includes face corresponding to head portrait in camera lens and head.
Distance acquisition module 202: for obtaining the distance between described head portrait and described camera lens.
After obtaining the head portrait of the people that participation is taken pictures, obtain the distance between this head portrait and camera lens by range sensor.
Second analysis module 203: for the distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtain the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
The analysis method of the employing of the second analysis module 203 repeats no more with the first analysis module 102 is identical herein; Second analysis module 203 is different in that with the first analysis module 102 the analysis object of the second analysis module 203 is only the head image information that the distance between camera lens is corresponding less than or equal to the head portrait of preset distance threshold value; The concrete numerical value of preset distance threshold value is not limited by the present invention, it is preferred that preset distance threshold value could be arranged to 1 meter, 3 meters or 5 meters.
The head image information that now acquisition head portrait is corresponding is the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
Distance between camera lens is not dealt with more than the head portrait of preset distance threshold value, it is possible to effectively get rid of other passerbys in camera lens interference to focusing of taking pictures at a distance.
Focus adjustment module 204: being used for determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
Focus module 205: for determining the focal length of described camera lens.
When the head image information in camera lens is complete, namely the head portrait of the people that described participation is taken pictures all complete in same picture after, the focal length of camera lens is determined, the focal length of camera lens no longer changes, and waits the instruction determining shooting to be obtained
Embodiment adds distance acquisition module 202 for obtaining the distance between described head portrait and described camera lens, now the second analysis module 203 is also used for the distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtain the acquisition of distance between head image information head portrait and the described camera lens corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens, distance between camera lens is not dealt with more than the head portrait of preset distance threshold value, it is possible to effectively get rid of other passerbys in camera lens interference to focusing of taking pictures at a distance.
Embodiment five
The present embodiment proposes a kind of camera arrangement applying the above-mentioned photographic method being automatically adjusted focal length and system; Wherein, this camera arrangement includes applying intelligent terminal and the camera that the above-mentioned photographic method being automatically adjusted focal length and system can be taken pictures.
The present invention is by obtaining the head portrait that lens shooting arrives; Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding; Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete; Lens shooting to head image information corresponding to head portrait imperfect time be automatically adjusted camera focus, the head portrait of people making to participate in take pictures can be complete arrived by lens shooting, the people participating in taking pictures make so can be within same picture, the facial information avoided when taking pictures in the photo of shooting and the incomplete situation of header information, improve Consumer's Experience.
The know-why of the embodiment of the present invention is described above in association with specific embodiment; these describe and are intended merely to the principle explaining the embodiment of the present invention; and the restriction to embodiment of the present invention protection domain can not be construed to by any way; those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the embodiment of the present invention, and these modes fall within the protection domain of the embodiment of the present invention.
Claims (10)
1. the photographic method being automatically adjusted focal length, it is characterised in that including:
Obtain the head portrait that lens shooting arrives;
Described head portrait is analyzed, obtains the head image information that described head portrait is corresponding;
Determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
2. photographic method according to claim 1, it is characterised in that after the head portrait that described acquisition lens shooting arrives, also include:
Obtain the distance between described head portrait and described camera lens.
3. photographic method according to claim 2, it is characterised in that described described head portrait is analyzed, obtain head image information corresponding to described head portrait particularly as follows:
Distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtains the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
4. photographic method according to claim 1, it is characterised in that the focal length of described adjustable lens also comprises determining that the focal length of described camera lens after making described head image information complete.
5. photographic method according to claim 1, it is characterised in that described head image information includes facial information and header information.
6. the camera system being automatically adjusted focal length, it is characterised in that include head portrait acquisition module, the first analysis module and focus adjustment module;
Described head portrait acquisition module: for obtaining the head portrait that lens shooting arrives;
Described first analysis module: for described head portrait is analyzed, obtain the head image information that described head portrait is corresponding;
Described focus adjustment module: being used for determining that described head image information is imperfect, the focal length of adjustable lens makes described head image information complete.
7. camera system according to claim 6, it is characterised in that also include distance acquisition module;
Described distance acquisition module: for obtaining the distance between described head portrait and described camera lens.
8. camera system according to claim 6, it is characterised in that also include focusing module;
Described focus module: for determining the focal length of described camera lens.
9. camera system according to claim 7, it is characterised in that also include the second analysis module;
Described second analysis module: for the distance between camera lens is analyzed less than or equal to the head portrait of preset distance threshold value, obtain the head image information corresponding less than or equal to the head portrait of preset distance threshold value with the distance between camera lens.
10. a camera arrangement, it is characterised in that comprise the camera system being automatically adjusted focal length described in claim 6-9 any one.
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| CN201610053264.2A CN105652560B (en) | 2016-01-25 | 2016-01-25 | A kind of photographic method and system of automatic adjustment focal length |
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| CN201610053264.2A CN105652560B (en) | 2016-01-25 | 2016-01-25 | A kind of photographic method and system of automatic adjustment focal length |
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| CN106778580A (en) * | 2016-12-07 | 2017-05-31 | 深圳市百通信息技术有限公司 | Amplified by mobile phone camera, focusing function takes the fingerprint the system and method for image |
| CN107465856A (en) * | 2017-08-31 | 2017-12-12 | 广东欧珀移动通信有限公司 | Image capture method, device and terminal device |
| CN107613200A (en) * | 2017-09-12 | 2018-01-19 | 努比亚技术有限公司 | A kind of focus adjustment method, equipment and computer-readable recording medium |
| CN108134913A (en) * | 2017-12-21 | 2018-06-08 | 广东小天才科技有限公司 | The adjustment method and wearable device of a kind of video calling |
| CN108197299A (en) * | 2018-01-24 | 2018-06-22 | 广东小天才科技有限公司 | A kind of taking pictures based on hand-held photographing device searches topic method and system |
| CN108683860A (en) * | 2018-08-28 | 2018-10-19 | 深圳市必发达科技有限公司 | Mobile phone self-timer method, computer readable storage medium and computer equipment |
| CN115812308A (en) * | 2020-07-14 | 2023-03-17 | 深圳传音控股股份有限公司 | Shooting control method and device, intelligent equipment and computer readable storage medium |
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