CN105282428A - Photographing method of mobile terminal and mobile terminal - Google Patents
Photographing method of mobile terminal and mobile terminal Download PDFInfo
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- CN105282428A CN105282428A CN201510283781.4A CN201510283781A CN105282428A CN 105282428 A CN105282428 A CN 105282428A CN 201510283781 A CN201510283781 A CN 201510283781A CN 105282428 A CN105282428 A CN 105282428A
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Abstract
The present invention provides a photographing method of a mobile terminal. The method comprises acquiring at least two frames of pictures according to different exposure states, carrying out high-dynamic synthesis on the at least two frames of pictures so as to obtain high dynamic pictures, carrying out matching operation by using adjacent two frames of high dynamic pictures so as to obtain a correction matrix, and carrying out panoramic stitching on the high dynamic pictures according to the correction matrix. A mobile terminal is also provided. According to the above method, high-quality high dynamic pictures can be obtained, user requirements are met, and using experience of users is raised.
Description
Technical field
The present invention relates to electronic device field, particularly relate to method and the mobile terminal of the shooting of a kind of mobile terminal.
Background technology
Along with the development of electronic device field, mobile terminal is more and more popularized in daily life.Particularly when people go out to play, often can use pan-shot to record picture at that time.In the prior art, two kinds of modes are had all can to realize pan-shot.
One is under fixing exposure mode, takes multiframe fixing exposure picture continuously, then spliced by panorama algorithm, export panoramic picture by the camera of mobile terminal; But because all pictures are all have employed same exposure status, easily cause overexposure or excessively dark situation, cannot the illumination variation of the adjacent scene of self adaptation; Therefore, panoramic picture and the actual scene difference of shooting gained comparatively greatly, to be difficult to accept by user.Another kind is under auto exposure mode, takes multiframe automatic exposure picture continuously, then is spliced by panorama algorithm, then export panoramic picture by the camera of mobile terminal; But because the brightness of adjacent two frame pictures there are differences, easily cause the brightness of same object in multiframe picture to differ, affect the matching precision of algorithm, thus occur splicing mistake, cause the panoramic picture of gained abnormal.
Summary of the invention
For overcoming the problems of the prior art, a kind of method that one aspect of the present invention provides mobile terminal to take, comprising:
At least two frame pictures are obtained according to different exposure status;
Described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image;
High-dynamics image described in adjacent two frames is utilized to carry out matching operation, to obtain correction matrix;
All described high-dynamics images are carried out panoramic mosaic according to described correction matrix.
On the other hand, present invention also offers a kind of mobile terminal, comprising:
Acquisition module, for obtaining at least two frame pictures according to different exposure status;
Synthesis module, for described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image;
Computing module, carries out matching operation, to obtain correction matrix for utilizing high-dynamics image described in adjacent two frames;
Concatenation module, for carrying out panoramic mosaic by all described high-dynamics images according to described correction matrix.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the first embodiment of image pickup method of the present invention;
Fig. 2 is the schematic flow sheet of the second embodiment of image pickup method of the present invention;
Fig. 3 is the schematic flow sheet of the 3rd embodiment of image pickup method of the present invention;
Fig. 4 is the structural representation of the first embodiment of mobile terminal of the present invention;
Fig. 5 is the structural representation of the second embodiment of mobile terminal of the present invention;
Fig. 6 is the structural representation of the 3rd embodiment of mobile terminal of the present invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1, be the schematic flow sheet of the first embodiment of the method for mobile terminal of the present invention shooting, the method comprises:
Step S11, obtains at least two frame pictures according to different exposure status.
In this step, can be at least two frame pictures that single camera obtains rapidly within the unit interval, can also be at least two frame pictures that multiple camera obtains at synchronization.
Described at least two frame pictures are carried out high dynamics synthesize, obtain high-dynamics image by step S12.
In this step, namely high dynamics synthesize is synthesized by the picture of same scene difference exposure, in particular by the image information extracted in each exposure picture, and superposes for corresponding image information, to obtain high-dynamics image; Because the picture of difference exposure comprises different image informations, namely obtained high-dynamics image includes more image information, also more close with actual scene.
Step S13, utilizes high-dynamics image described in adjacent two frames to carry out matching operation, to obtain correction matrix.
In this step, because high-dynamics image includes more image information, guarantee that obtained correction matrix is more accurate, there will not be splicing mistake.
Step S14, carries out panoramic mosaic by all described high-dynamics images according to described correction matrix.
In this step, by carrying out panoramic mosaic to high-dynamics image, obtaining high-quality panoramic picture, meeting the demand of user.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Fig. 2, be the schematic flow sheet of the second embodiment of the method for mobile terminal of the present invention shooting, the method comprises:
Step S21, under fixing exposure mode, obtains at least one frame fixing exposure picture.
In this step, due in different fixing exposure pictures, the brightness of same object is consistent, and can obtain each object positional information accurately in picture, be beneficial to the carrying out of matching operation in subsequent step, to obtain correction matrix accurately.
Step S22, under auto exposure mode, obtains at least one frame automatic exposure picture.
In this step, the brightness shooting according to actual scene obtains automatic exposure picture, can adapt to the brightness change of actual scene, make the panoramic picture synthesizing gained in subsequent step more close with actual scene.
Step S23, carries out high dynamics synthesize by described fixing exposure picture and described automatic exposure picture, obtains high-dynamics image.
In this step, namely high dynamics synthesize is synthesized by the picture of same scene difference exposure, in particular by the image information extracted in each exposure picture, and superposes for corresponding image information, to obtain high-dynamics image; Because the picture of difference exposure comprises different image informations, namely obtained high-dynamics image includes more image information, also more close with actual scene.
Step S24, utilizes high-dynamics image described in adjacent two frames to carry out matching operation, to obtain correction matrix.
In this step, owing to including fixing exposure image information in high-dynamics image, each object positional information accurately in picture can be obtained, obtain correction matrix accurately with this, there will not be splicing mistake.
Step S25, carries out panoramic mosaic by all described high-dynamics images according to described correction matrix.
In this step, by carrying out panoramic mosaic to high-dynamics image, obtaining high-quality panoramic picture, meeting the demand of user.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Fig. 3, be the schematic flow sheet of the 3rd embodiment of the method for mobile terminal of the present invention shooting, the method comprises:
Step S31, utilizes described first camera under fixing exposure mode, obtains at least one frame fixing exposure picture.
In this step, due in different fixing exposure pictures, the brightness of same object is consistent, and can obtain each object positional information accurately in picture, be beneficial to the carrying out of matching operation in subsequent step, to obtain correction matrix accurately.
In this step, mobile terminal comprises the first camera and second camera.
Step S32, utilizes described second camera under auto exposure mode, obtains at least one frame automatic exposure picture.
In this step, the brightness shooting according to actual scene obtains automatic exposure picture, can adapt to the brightness change of actual scene, make the panoramic picture synthesizing gained in subsequent step more close with actual scene.
In above-mentioned steps, fixing exposure picture and automatic exposure picture are that synchronization shooting obtains.
Step S33, carries out perspective process by described fixing exposure picture and described automatic exposure picture.
In this step, by perspective process, the same area in fixing exposure picture and automatic exposure picture can be determined.
Step S34, chooses the same area in described fixing exposure picture and described automatic exposure figure, as the fixing exposure picture after correction and the automatic exposure picture after correcting.
In this step, due to the first above-mentioned camera and second camera distinct on installation site, cause taking the picture of gained and there is visual angle deviation; Therefore, by choosing the same area in fixing exposure picture and automatic exposure figure, as the fixing exposure picture after correction and the automatic exposure picture after correcting, perspective correction can be carried out to fixing exposure picture and automatic exposure picture.
Step S35, carries out high dynamics synthesize by the fixing exposure picture after correction and the automatic exposure picture after correcting, obtains high-dynamics image.
In this step, namely high dynamics synthesize is synthesized by the picture of same scene difference exposure, in particular by the image information extracted in each exposure picture, and superposes for corresponding image information, to obtain high-dynamics image; Because the picture of difference exposure comprises different image informations, namely obtained high-dynamics image includes more image information, also more close with actual scene.
Step S36, utilizes the fixing exposure image information in high-dynamics image described in adjacent two frames to carry out matching operation, to obtain correction matrix.
In this step, owing to including fixing exposure image information in high-dynamics image, each object positional information accurately in picture can be obtained, obtain correction matrix accurately with this, there will not be splicing mistake.
Step S37, carries out panoramic mosaic by all described high-dynamics images according to described correction matrix.
In this step, by carrying out panoramic mosaic to high-dynamics image, obtaining high-quality panoramic picture, meeting the demand of user.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Detailed introduction is done to the embodiment of the method that mobile terminal of the present invention is taken above.Below the device (i.e. mobile terminal) corresponding to said method is further elaborated.Wherein, mobile terminal can be mobile phone, panel computer, MP3, MP4 or notebook computer etc.
Fig. 4 is the structural representation of the first embodiment of mobile terminal of the present invention, and this mobile terminal 10 comprises acquisition module 11, synthesis module 12 computing module 13 and concatenation module 14.
Wherein, acquisition module 11, is connected with synthesis module 12, for obtaining at least two frame pictures according to different exposure status.
Synthesis module 12, is connected with computing module 13, for described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image.
Computing module 13, is connected with concatenation module 14, carries out matching operation, to obtain correction matrix for utilizing high-dynamics image described in adjacent two frames.
Concatenation module 14, for carrying out panoramic mosaic by all described high-dynamics images according to described correction matrix.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Fig. 5 is the structural representation of the second embodiment of mobile terminal of the present invention, and this mobile terminal 20 comprises acquisition module 21, synthesis module 22 computing module 23 and concatenation module 24.
Wherein, acquisition module 21, is connected with synthesis module 22, for obtaining at least two frame pictures according to different exposure status.
Synthesis module 22, is connected with computing module 23, for described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image.
Computing module 23, is connected with concatenation module 24, carries out matching operation, to obtain correction matrix for utilizing high-dynamics image described in adjacent two frames.
Concatenation module 24, for carrying out panoramic mosaic by all described high-dynamics images according to described correction matrix.
Further, acquisition module 21 comprises:
First acquiring unit 211, is connected with second acquisition unit 212, under fixing exposure mode, obtains at least one frame fixing exposure picture.
Second acquisition unit 212, under auto exposure mode, obtains at least one frame automatic exposure picture.
Synthesis module 22 comprises:
Picture synthesis unit 221, for described fixing exposure picture and described automatic exposure picture are carried out high dynamics synthesize, obtains high-dynamics image.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
Fig. 6, be the structural representation of the 3rd embodiment of mobile terminal of the present invention, this mobile terminal 30 comprises acquisition module 31, synthesis module 32 computing module 33 and concatenation module 34, also comprises the first camera and second camera.
Wherein, acquisition module 31, is connected with synthesis module 32, for obtaining at least two frame pictures according to different exposure status.
Synthesis module 32, is connected with computing module 33, for described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image.
Computing module 33, is connected with concatenation module 34, carries out matching operation, to obtain correction matrix for utilizing high-dynamics image described in adjacent two frames.
Concatenation module 34, for carrying out panoramic mosaic by all described high-dynamics images according to described correction matrix.
Further, acquisition module 31 comprises:
First acquiring unit 311, is connected with second acquisition unit 312, under fixing exposure mode, obtains at least one frame fixing exposure picture.
Second acquisition unit 312, under auto exposure mode, obtains at least one frame automatic exposure picture.
Synthesis module 32 comprises:
Picture synthesis unit 321, for described fixing exposure picture and described automatic exposure picture are carried out high dynamics synthesize, obtains high-dynamics image.
Computing module 33 comprises:
Image information arithmetic element 331, carries out matching operation, to obtain correction matrix for utilizing the fixing exposure image information in high-dynamics image described in adjacent two frames.
Again further, the first acquiring unit 311 comprises:
First obtains subelement 3111, for utilizing described first camera under fixing exposure mode, obtains at least one frame fixing exposure picture.
Second acquisition unit 312 comprises:
Second obtains subelement 3121, for utilizing described second camera under auto exposure mode, obtains at least one frame automatic exposure picture.
Picture synthesis unit 321 comprises:
Perspective correction subelement 3211, is connected with correction picture synthon unit 3212, described fixing exposure picture and described automatic exposure picture is carried out perspective correction.
Correct picture synthon unit 3212, the fixing exposure picture after correction and the automatic exposure picture after correcting are carried out high dynamics synthesize, obtains high-dynamics image.
Again further, perspective correction subelement 3211 comprises:
Perspective subelement 32111, and chooses subelement 32112 and is connected, and processes for described fixing exposure picture and described automatic exposure picture being carried out perspective.
Choose subelement 32112, for choosing the same area in described fixing exposure picture and described automatic exposure figure, as the fixing exposure picture after correction and the automatic exposure picture after correcting.
The embodiment of the present invention is by carrying out high dynamics synthesize by the picture of different exposure status, obtain the high-dynamics image including more image informations, to guarantee, in the matching operation of panoramic mosaic, to obtain correction matrix accurately, panoramic mosaic is made to there will not be splicing mistake; Further, splice the panoramic picture obtained also more close with actual scene, meet the demand of user, improve the experience of user.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Be one or more execution modes provided in conjunction with particular content as mentioned above, do not assert that specific embodiment of the invention is confined to these explanations.Method all and of the present invention, structure etc. are approximate, identical, or for making some technology deduction or replace under concept thereof of the present invention, all should be considered as protection scope of the present invention.
Claims (10)
1. a method for mobile terminal shooting, is characterized in that, comprising:
At least two frame pictures are obtained according to different exposure status;
Described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image;
High-dynamics image described in adjacent two frames is utilized to carry out matching operation, to obtain correction matrix;
All described high-dynamics images are carried out panoramic mosaic according to described correction matrix.
2. the method for mobile terminal shooting as claimed in claim 1, is characterized in that, the described step obtaining at least two frame pictures according to different exposure status, comprising:
Under fixing exposure mode, obtain at least one frame fixing exposure picture;
Under auto exposure mode, obtain at least one frame automatic exposure picture;
Described described at least two frame pictures are carried out high dynamics synthesize, obtain the step of high-dynamics image, comprising:
Described fixing exposure picture and described automatic exposure picture are carried out high dynamics synthesize, obtains high-dynamics image.
3. the method for mobile terminal shooting as claimed in claim 2, it is characterized in that, described mobile terminal comprises the first camera and second camera;
Described under fixing exposure mode, obtain the step that at least one frame fixes exposure picture, comprising:
Utilize described first camera under fixing exposure mode, obtain at least one frame fixing exposure picture;
Described under auto exposure mode, obtain the step of at least one frame automatic exposure picture, comprising:
Utilize described second camera under auto exposure mode, obtain at least one frame automatic exposure picture;
Described described fixing exposure picture and described automatic exposure picture are carried out high dynamics synthesize, obtain the step of high-dynamics image, comprising:
Described fixing exposure picture and described automatic exposure picture are carried out perspective correction;
Fixing exposure picture after correction and the automatic exposure picture after correcting are carried out high dynamics synthesize, obtains high-dynamics image.
4. the method for mobile terminal shooting as claimed in claim 3, it is characterized in that, described step of described fixing exposure picture and described automatic exposure picture being carried out perspective correction, comprising:
Described fixing exposure picture and described automatic exposure picture are carried out perspective process;
Choose the same area in described fixing exposure picture and described automatic exposure figure, as the fixing exposure picture after correction and the automatic exposure picture after correcting.
5. the method for mobile terminal shooting as claimed in claim 3, is characterized in that, describedly utilizes high-dynamics image described in adjacent two frames to carry out matching operation, to obtain the step of correction matrix, comprising:
The fixing exposure image information in high-dynamics image described in adjacent two frames is utilized to carry out matching operation, to obtain correction matrix.
6. a mobile terminal, is characterized in that, comprising:
Acquisition module, for obtaining at least two frame pictures according to different exposure status;
Synthesis module, for described at least two frame pictures are carried out high dynamics synthesize, obtains high-dynamics image;
Computing module, carries out matching operation, to obtain correction matrix for utilizing high-dynamics image described in adjacent two frames;
Concatenation module, for carrying out panoramic mosaic by all described high-dynamics images according to described correction matrix.
7. mobile terminal as claimed in claim 6, it is characterized in that, described acquisition module comprises:
First acquiring unit, under fixing exposure mode, obtains at least one frame fixing exposure picture;
Second acquisition unit, under auto exposure mode, obtains at least one frame automatic exposure picture;
Described synthesis module comprises:
Picture synthesis unit, for described fixing exposure picture and described automatic exposure picture are carried out high dynamics synthesize, obtains high-dynamics image.
8. mobile terminal as claimed in claim 7, it is characterized in that, also comprise the first camera and second camera, described first acquiring unit comprises:
First obtains subelement, for utilizing described first camera under fixing exposure mode, obtains at least one frame fixing exposure picture;
Described second acquisition unit comprises:
Second obtains subelement, for utilizing described second camera under auto exposure mode, obtains at least one frame automatic exposure picture;
Described picture synthesis unit comprises:
Perspective correction subelement, carries out perspective correction by described fixing exposure picture and described automatic exposure picture;
Correct picture synthon unit, the fixing exposure picture after correction and the automatic exposure picture after correcting are carried out high dynamics synthesize, obtains high-dynamics image.
9. mobile terminal as claimed in claim 8, it is characterized in that, described perspective correction subelement comprises:
Perspective subelement, for carrying out perspective process by described fixing exposure picture and described automatic exposure picture;
Choose subelement, for choosing the same area in described fixing exposure picture and described automatic exposure figure, as the fixing exposure picture after correction and the automatic exposure picture after correcting.
10. mobile terminal as claimed in claim 8, it is characterized in that, described computing module comprises: image information arithmetic element, carries out matching operation, to obtain correction matrix for utilizing the fixing exposure image information in high-dynamics image described in adjacent two frames.
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| CN201510283781.4A CN105282428B (en) | 2015-05-28 | 2015-05-28 | A kind of method and mobile terminal of mobile terminal shooting |
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