CN105049716A

CN105049716A - Preview image processing method and user terminal

Info

Publication number: CN105049716A
Application number: CN201510383411.8A
Authority: CN
Inventors: 吴磊
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2015-11-11
Anticipated expiration: 2035-06-30
Also published as: CN105049716B

Abstract

The embodiment of the invention discloses a preview image processing method and a user terminal. The method comprises steps: when the user terminal acquires feature information of a preview image acquired by a large-view angle camera, the current distortion level of the preview image is recognized according to the feature information, when the current distortion level is greater than a preset distortion level, and a target shooting view angle is determined according to the current distortion level. When the shooting view angle of the large-view angle camera is the target shooting view angle, the distortion level of the image acquired by the large-view angle camera is smaller than the preset distortion level, and the target shooting view angle is displayed in the preview image. Thus, when the preview image generates large distortion, the user terminal can display the target shooting view angle, the user is reminded to adjust the shooting view angle to the target shooting view angle, the picture shot later has smaller distortion, the user can thus shoot a satisfactory picture for one time, and the shooting efficiency is improved.

Description

A kind of preview image processing method and user terminal

Technical field

The present invention relates to technical field of image processing, be specifically related to a kind of preview image processing method and user terminal.

Background technology

Present user terminal such as mobile phone, panel computer, notebook computer etc. are all configured with camera, and user can be undertaken taking or making a video recording by camera.People, in the process of taking pictures, often like many people to take a group photo, but existing common camera coverage is more limited, if need shooting picture with great visual angle, user may use camera with great visual angle to take.Find in practice, when using that camera is taken with great visual angle, user after discovery reference object produces distortion, need slowly to adjust with great visual angle camera to find suitable acquisition parameters to shoot high-quality pictures taken.Visible, use camera with great visual angle to shoot the higher pictures taken of quality, complex operation, shooting efficiency is lower.

Summary of the invention

The embodiment of the invention discloses a kind of preview image processing method and user terminal, prompting can need the shooting visual angle of adjustment when preview image produces distortion, improve shooting efficiency.

Embodiment of the present invention first aspect discloses a kind of preview image processing method, comprising:

Obtain the characteristic information of the preview image of camera collection with great visual angle;

According to described characteristic information, what identify described preview image works as front-distortion grade;

When described when front-distortion grade be greater than preset distortion grade time, according to described when front-distortion grade determination target shooting visual angle, wherein, when the shooting visual angle of described camera is with great visual angle described target shooting visual angle, the distortion grade of the image of described camera collection is with great visual angle less than described default distortion grade;

The Viewing-angle information at described target shooting visual angle is shown in described preview image.

In conjunction with embodiment of the present invention first aspect, in the first possible implementation of embodiment of the present invention first aspect, described according to described characteristic information, what identify described preview image works as front-distortion grade, comprising:

According to described characteristic information, identify at least one distorted region in described preview image;

According to the distortion information of target distorted region at least one distorted region described, determine the distortion grade of described target distorted region;

Using the distortion grade of described target distorted region as described preview image when front-distortion grade.

In conjunction with the first possible implementation of embodiment of the present invention first aspect, in the implementation that the second of embodiment of the present invention first aspect is possible, the distortion information of target distorted region at least one distorted region described in described basis, determine the distortion grade of described target distorted region, comprising:

For each distorted region, judge whether there is default reference object in this distorted region;

If there is described default reference object in this distorted region, then this distorted region is defined as target distorted region;

According to the distortion information of described target distorted region, determine the distortion grade of described target distorted region.

In conjunction with the implementation that the second of embodiment of the present invention first aspect is possible, in the third possible implementation of embodiment of the present invention first aspect, the described distortion information according to described target distorted region, determine the distortion grade of described target distorted region, comprising:

The characteristic information of described target distorted region and default characteristic information are contrasted, obtains the distortion information of described target distorted region;

From the distortion grade that the distortion information preset is corresponding with the distortion information obtaining described target distorted region distortion hierarchical relationship.

The implementation possible in conjunction with the second of the first possible implementation of embodiment of the present invention first aspect, first aspect or the third possible implementation of first aspect, in the 4th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:

Obtain the positional information of described target distorted region at described preview image;

With described positional information and described when front-distortion grade is for foundation, in conjunction with the inquiry of preset relation table and described positional information and described shooting visual angle corresponding when the front-distortion grade while;

The current shooting visual angle of camera with great visual angle described in described shooting visual angle is defined as;

The described Viewing-angle information showing described target shooting visual angle in described preview image, comprising:

The described target shooting Viewing-angle information at visual angle and the Viewing-angle information at described current shooting visual angle is shown in described preview image.

In conjunction with the 4th kind of possible implementation of embodiment of the present invention first aspect, in the 5th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:

The described current shooting visual angle of described camera is with great visual angle adjusted to described target shooting visual angle;

Described in control, camera is taken with described target shooting visual angle with great visual angle, obtains pictures taken;

Described target shooting visual angle is added in described pictures taken.

In conjunction with the 4th kind of possible implementation of embodiment of the present invention first aspect, in the 6th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:

The described target distorted region of described preview image shows the distortion information of described target distorted region.

Accordingly, embodiment of the present invention second aspect discloses a kind of user terminal, comprising:

Acquisition module, for obtaining the characteristic information of the preview image of camera collection with great visual angle;

Identification module, for according to described characteristic information, identify described preview image when front-distortion grade;

Determination module, for when described when front-distortion grade be greater than preset distortion grade time, according to described when front-distortion grade determination target shooting visual angle, wherein, when the shooting visual angle of described camera is with great visual angle described target shooting visual angle, the distortion grade of the image of described camera collection is with great visual angle less than described default distortion grade;

Display module, for showing the Viewing-angle information at described target shooting visual angle in described preview image.

In conjunction with embodiment of the present invention second aspect, in the first possible implementation of embodiment of the present invention second aspect, described identification module comprises recognition unit, the first determining unit and performance element, wherein:

Described recognition unit, for the characteristic information got according to described acquisition module, identifies at least one distorted region in described preview image;

Described first determining unit, for the distortion information according to target distorted region at least one distorted region described, determines the distortion grade of described target distorted region;

Described performance element, for using the distortion grade of described target distorted region as described preview image when front-distortion grade.

In conjunction with the first possible implementation of embodiment of the present invention second aspect, in the implementation that the second of embodiment of the present invention second aspect is possible, described first determining unit comprises judgment sub-unit, determines subelement and perform subelement, wherein:

Described judgment sub-unit, for for each distorted region, judges whether there is default reference object in this distorted region;

Describedly determining subelement, during for judging to there is described default reference object in this distorted region in described judgment sub-unit, this distorted region being defined as target distorted region;

Described execution subelement, for the distortion information according to described target distorted region, determines the distortion grade of described target distorted region.

In conjunction with the implementation that the second of embodiment of the present invention second aspect is possible, in the third possible implementation of embodiment of the present invention second aspect, described execution subelement, according to the distortion information of described target distorted region, determines that the concrete mode of the distortion grade of described target distorted region is:

The implementation possible in conjunction with the second of the first possible implementation of embodiment of the present invention second aspect, second aspect or the third possible implementation of second aspect, in the 4th kind of possible implementation of inventive embodiments second aspect,

Described acquisition module, also for obtaining the positional information of described target distorted region at described preview image;

Described user terminal also comprises:

Enquiry module, when front-distortion grade is for foundation described in identifying for the described positional information that gets with described acquisition module and described identification module, in conjunction with the inquiry of preset relation table and described positional information and described shooting visual angle corresponding when the front-distortion grade while;

Described determination module, also for the current shooting visual angle of camera with great visual angle described in being defined as at described shooting visual angle;

The concrete mode that described display module shows the Viewing-angle information at described target shooting visual angle in described preview image is:

In conjunction with the 4th kind of possible implementation of embodiment of the present invention second aspect, in the 5th kind of possible implementation of inventive embodiments second aspect, described user terminal also comprises:

Adjusting module, for being adjusted to described target shooting visual angle by the described current shooting visual angle of described camera with great visual angle;

Control module, for described in controlling with great visual angle camera take with described target shooting visual angle, obtain pictures taken;

Add module, for being added in described pictures taken at described target shooting visual angle.

In conjunction with the 4th kind of possible implementation of embodiment of the present invention second aspect, in the 6th kind of possible implementation of inventive embodiments second aspect,

Described display module, also for showing the distortion information of described target distorted region on the described target distorted region of described preview image.

Implement the embodiment of the present invention, there is following beneficial effect:

In the embodiment of the present invention, user terminal is when obtaining the characteristic information of preview image of camera collection with great visual angle, can according to this characteristic information, what identify this preview image works as front-distortion grade, when deserving front-distortion grade and being greater than default distortion grade, this user terminal can according to deserving front-distortion grade determination target shooting visual angle, wherein, this with great visual angle camera shooting visual angle for this target shooting visual angle time, the distortion grade of this image of camera collection is with great visual angle less than this and presets distortion grade, and in preview image, show this target shooting visual angle.Pass through the embodiment of the present invention, user terminal can when preview image produces larger distortion, display-object shooting visual angle, to point out user by less for the distortion of taking the picture generation shot after visual angle is adjusted to target shooting reality, thus make user disposablely can shoot satisfied picture, improve shooting efficiency.

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 a kind of preview image processing method disclosed in the embodiment of the present invention;

Fig. 2 is the schematic flow sheet of another kind of preview image processing method disclosed in the embodiment of the present invention;

Fig. 3 is the structural representation of a kind of user terminal disclosed in the embodiment of the present invention;

Fig. 4 is the structural representation of another kind of user terminal disclosed in the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The embodiment of the invention discloses a kind of preview image processing method and user terminal, prompting can need the shooting visual angle of adjustment when preview image produces distortion, improve shooting efficiency.Below be described in detail respectively.

Refer to Fig. 1, Fig. 1 is the schematic flow sheet of a kind of preview image processing method disclosed in the embodiment of the present invention.Wherein, method shown in Fig. 1 can be applied to smart mobile phone (as Android phone, iOS mobile phone etc.), panel computer, palmtop PC and mobile internet device (MobileInternetDevices, MID), personal digital assistant (PersonalDigitalAssistant, PDA), the user terminal such as media player, intelligent television, intelligent watch, intelligent glasses, Intelligent bracelet, wherein, this user terminal is configured with camera with great visual angle.As shown in Figure 1, the method can comprise the following steps:

S101, user terminal obtain the characteristic information of the preview image of camera collection with great visual angle.

In the embodiment of the present invention, camera refers to the angle of camera lens with great visual angle, the scope of namely irradiating, and angle lens is larger, and visual range is larger, and effectively visual range is less simultaneously.Angle lens refers to the angle degree arriving the segment angle with camera lens being centre point topmost bottom of video camera range of exposures.Wherein, the visual angle of camera is greater than standard camera head with great visual angle, focal length phrase standard camera head, and visual angle is less than fish-eye camera, focal length length and fish-eye camera.Camera is relatively applicable to clapping the photo that scene is comparatively large, visual angle is wider with great visual angle, as building, landscape, many people group photo etc.

In the embodiment of the present invention, controlling before camera is taken with great visual angle, this user terminal can gather this reference object with great visual angle in camera angular field of view, obtains the preview image in camera imaging region with great visual angle, and obtains the characteristic information of this preview image.Wherein, the characteristic information of this preview image can include but not limited to the geometric position information etc. of the shape of image, the location distribution information of image slices vegetarian refreshments, the size of image and image.

S102, this user terminal are according to this characteristic information, and what identify this preview image works as front-distortion grade.

In the embodiment of the present invention, after user terminal gets the characteristic information of this preview image, can contrast with the characteristic information of the picture taken by standard camera head, thus identify the distortion degree of this preview image, the corresponding distortion grade of multiple distortion degree.Therefore, this user terminal can according to the distortion degree of this preview image determine this preview image when front-distortion grade.If the distortion grade of distortion degree corresponding to 60% ~ 75% is four.

Optionally, this user terminal according to this this preview image of characteristic information identification when front-distortion grade can be: choose target distorted region, and identify the distortion grade of target distorted region, using the distortion grade of this target distorted region as this and preview image when front-distortion grade.Can also be: according to this characteristic information, the characteristic information of the picture taken with standard camera head contrasts, thus the region obtaining whole preview image generation distortion accounts for the area of this preview image, when area occupied exceedes certain threshold value, just identify the distortion degree of the distorted region that distortion occurs, ask the mean value of the distortion degree of regional, it can be used as the distortion degree of this preview image, and then according to this distortion degree determine this preview image when front-distortion grade.

As a kind of feasible execution mode, this user terminal, according to this characteristic information, identifies can comprising the following steps when front-distortion grade of this preview image:

Step 11) according to this characteristic information, identify at least one distorted region in this preview image.

In specific implementation, use with great visual angle camera collection image time, when reference object exceed this make a video recording with great visual angle first critical visual angle time, the image collected can produce distortion.Wherein, distortion is for the same reference object of standard camera head shooting.Such as, the true form of a reference object is triangle, is also triangle, and may will becomes quadrangle or irregular figure when adopting camera with great visual angle to take this reference object when adopting standard camera head to take this reference object.

In specific implementation, exceed this critical visual angle and the reference object far away apart from this critical visual angle, the distortion produced in the preview image of imaging region is larger, more unrepairable; Contrary, exceed this critical visual angle and the reference object nearer apart from this critical visual angle, the distortion produced in the preview image of imaging region is less, and the possibility of repairing this distortion is in the prior art larger.

In specific implementation, after user terminal gets the characteristic information of this preview image, this user terminal will according to the distorted region in this this preview image of characteristic information identification, this distorted region can be one, also can be multiple, area shared by each distorted region can be equal, also can be not wait, and the embodiment of the present invention does not limit.

Optionally, this user terminal, according to this characteristic information, identifies that the mode of at least one distorted region in this preview image can be:

According to the picture shape of this preview image, each reference object in this preview image is separated, and identifies the type of each reference object, as people, animal, landscape, building, article etc.And then the location distribution information of pixel according to each the reference object type prestored, judge that whether the position distribution of the pixel of each reference object in this preview image is different with the position distribution of the pixel of the reference object prestored, if so, just regions different from the pixel position distribution of the reference object prestored for the pixel position distribution of this reference object is defined as distorted region.

For example, when identifying this reference object and behaving, the design feature identifying the face of people and each position of health can be easy to, therefore, just can by preview image, the location distribution information of the face of this reference object and each position pixel in this preview image of health compares with the pixel location distribution information of design feature on pixel shows of the people prestored, see if there is difference, as asymmetric in left and right face, the shape of arm and the shape of normal arm there are differences, head, health, the ratio of leg has exceeded normal range (NR) etc.If there are differences, the region that these there are differences will be defined as distorted region.

Optionally, this user terminal, according to this characteristic information, identifies that the mode of at least one distorted region in this preview image can also be:

According in the photo that the standard camera head prestored is shot, the position distribution situation of each pixel, as the spacing distance between pixel and pixel, the gray-value variation trend etc. between pixel, picture shape.Then by this preview image between pixel location distribution information contrast with the position distribution situation of pixel prestored, if difference exceedes predetermined threshold value, then this region is defined as distorted region.

User terminal has prestored the acquisition parameters of this camera with great visual angle, as reference object can not produce distortion in 2/3 central area, place of preview image, and slight distortion can be produced in annular region between 2/3 to 4/5, and comparatively serious distortion can be produced in annular region between 4/5 to 8/9, and even more serious distortion can be produced in the annular region of 8/9 to 1.Therefore, this user terminal can identify the regional of preview image according to as above-mentioned area distribution information, by except central area as the region except 2/3 central area, place is all defined as distorted region, and be multiple distorted region according to distortion degree Further Division.

In specific implementation, identify that the mode of distorted region can also comprise: carry out contrast with the central point of this preview image identify according to the shape in the histogram distribution identification of the gray value of pixel, each region, pixel distribution, the embodiment of the present invention does not limit.

Step 12) according to the distortion information of target distorted region in this at least one distorted region, determine the distortion grade of this target distorted region.

In specific implementation, distortion information refer to this distorted region and non-distorted region compare after the distortion degree of this distorted region that calculates, or distorted position accounts for the percentage etc. of this distorted region.Wherein, distortion degree also can become distortion level in image display, and as cross-color, shape distortion etc., the embodiment of the present invention does not limit.

In specific implementation, after user terminal identifies at least one distorted region, target distorted region can be chosen from this at least one distorted region, and calculate the distortion information of this target distorted region, and then determine the distortion grade of this target distorted region according to the distortion information of this target distorted region.Wherein, the quantity of target distorted region can be one, also can be multiple; When this target distorted region is multiple, the area of each target distorted region can be equal, also can not wait; Can be the corresponding distortion grade of polytype distortion information, can also be the corresponding distortion grade of distortion information of a type, the embodiment of the present invention limit.

Optionally, this user terminal, according to the distortion information of target distorted region in this at least one distorted region, determines that the concrete mode of the distortion grade of this target distorted region can comprise the following steps:

When there is this default reference object in this distorted region, this distorted region is defined as target distorted region;

According to the distortion information of this target distorted region, determine the distortion grade of this target distorted region.

Concrete, user terminal can preset some reference objects as important reference object, as personage, animal, building, the sun etc.After this user terminal identifies at least one distorted region, this user terminal can for each distorted region, judge in this distorted region, whether to there is this default reference object, if existed, just show that the reference object comprised in this target distorted region is important reference object, or be main reference object, just this distorted region be defined as target distorted region.

Concrete, after user terminal determines target distorted region, the distortion grade of this target distorted region can be determined according to the distortion information of this target distorted region.

For example, suppose that presetting distortion grade is three, even if photo is shot in the distorted region that distortion grade is less than three, this distorted region can be repaired by later stage software, and the grade that distorts is more than or equal to the distorted region of three, the later stage is difficult to repair it.Therefore, after the characteristic information getting preview image, this user terminal can identify multiple distorted region according to this characteristic information, then this user terminal can judge for each distorted region, judge reference object that this distorted region comprises whether with the reference object preset as personage, animal match, if when determining this reference object for personage, this distorted region is just defined as target distorted region by this user terminal.The distortion grade that then will calculate this target distorted region according to the distortion information of this target distorted region is four.

Optionally, this user terminal is according to the distortion information of this target distorted region, determine that the concrete mode of the distortion grade of this target distorted region can be: the characteristic information of this target distorted region and default characteristic information are contrasted, obtain the distortion information of this target distorted region; From the distortion grade that the distortion information preset is corresponding with the distortion information obtaining this target distorted region distortion hierarchical relationship.

In specific implementation, after user terminal determines target distorted region from this at least one distorted region, further the characteristic information of this target distorted region and the characteristic information preset can be contrasted, obtain the distortion degree of this target distorted region, as distorted 20%, still distorted 50%, even distorted 90%, and the percentage of each distorted position this target distorted region shared in this target distorted region.And then according to determining the distortion grade of this target distorted region in the distortion information prestored and distortion hierarchical relationship.

For example, suppose that the reference object that this distorted region comprises is part personage head portrait, and the pixel distributed intelligence of this part personage head portrait is compared with the pixel distributed intelligence of the human head picture collected by standard camera head prestored, show that in this target distorted region, this part personage head portrait distortion degree is 45%, in distortion information with distortion hierarchical relationship, distortion grade corresponding to the distortion degree of 1% ~ 30% is one, and the distortion grade corresponding to the distortion degree of 31% ~ 50% is two, distortion grade corresponding to the distortion degree of 51% ~ 65% is three.Therefore, this user terminal can find the distortion grade corresponding to distortion degree of 45% from distortion information and distortion hierarchical relationship is two.

Step 13) using the distortion grade of this target distorted region as this preview image when front-distortion grade.

In specific implementation, after user terminal determines the distortion grade of target distorted region, what this distortion grade can be defined as this preview image works as front-distortion grade.That is, when including default reference object in distorted region, or time the reference object that default reference object type is identical (as being personage), can using the distortion grade of this distorted region as this preview image when front-distortion grade.Obviously, the distortion grade comprising the distorted region of this default reference object can represent the distortion grade of whole preview image completely, that determines this preview image in this way works as front-distortion grade, not only can save user terminal calculation resources, improves computational efficiency.When adjusting, just can also reach by adjusting this part distorted region the effect adjusting whole preview image, also improving the regulated efficiency of user terminal equally.

S103, in this prior distort grade be greater than preset distortion grade time, this user terminal according to deserve front-distortion grade determination target take visual angle.

In the embodiment of the present invention, when user terminal identify this preview image after front-distortion grade, this user terminal judges to preset distortion grade when whether front-distortion grade is greater than further, if be greater than, just according to deserving front-distortion grade determination target shooting visual angle, if be less than, just take with the shooting visual angle of deserving front-distortion grade corresponding.Wherein, preset distortion grade can be understood as: in the distortion that this presets below distortion grade, can correct these distortion in the prior art; And in this distortion presetting more than distortion grade, temporarily cannot it be corrected in the prior art, so, after preview image reaches more than default distortion grade, only have the acquisition parameters by adjusting camera with great visual angle just can avoid.

In the embodiment of the present invention, when this distance with great visual angle between camera and this default reference object is Target To Film Distance, this with great visual angle the distortion grade of the image of camera collection be less than and preset distortion grade.

In the embodiment of the present invention, user terminal can when being greater than default distortion grade when front-distortion grade, slowly adjustment shooting visual angle, taking visual angle as slowly increased, making this default reference object drop on camera with great visual angle and can not produce in the angular field of view of distortion.The shooting visual angle that the distortion grade of preview image can be made less can be found in this way, be target shooting visual angle.The shooting visual angle that current adjustment can also obtain by user terminal stores with distortion grade simultaneously, directly to find out suitable shooting visual angle from the shooting visual angle stored and distortion hierarchical relationship when follow-up needs.

Optionally, this target shooting visual angle can refer to a visual angle angle, under normal circumstances, after the distortion grade of this preview image is greater than default distortion grade, want that this distortion grade is less than and preset distortion grade, be need the current shooting visual angle of this camera with great visual angle to increase certain visual angle angle, therefore, this target shooting visual angle is generally greater than current shooting visual angle; This target shooting visual angle can also refer to that, on the basis at this current shooting visual angle of this preview image of collection of camera with great visual angle, need the visual angle difference of adjustment, the embodiment of the present invention does not limit.For convenience, in follow-up description, visual angle angle is all refered in particular at this target shooting visual angle, but not visual angle difference.

S104, this user terminal show the Viewing-angle information at this target shooting visual angle in this preview image.

In the embodiment of the present invention, after user terminal determines this target shooting visual angle, this user terminal, just when showing preview image, shows the Viewing-angle information at this target shooting visual angle in this preview image.Under normal circumstances, when needing to take with great visual angle, the coverage of camera shooting is less.Suppose that this user terminal determines that at shooting visual angle be when 160, the distortion grade of preview image is greater than presets distortion grade three, therefore, according to this distortion grade, when this user terminal will determine that target shooting visual angle is 180, the distortion grade of the preview image obtained is less than presets distortion grade, so, this user terminal will by the information displaying at this target shooting visual angle 180 in this preview image.Can user's visual information be given in this way, know that to enable user shooting visual angle is adjusted to the distortion including the region of default reference object in the preview image obtained after target takes visual angle will be disappeared or be reduced to and can be come by software correction.

For example, when user needs shooting one building, user terminal first can obtain with great visual angle camera to the pixel distribution situation of the preview image that this building collects, and then identify the distorted region in this preview image according to pixel distribution situation, determine that the front-distortion grade of working as of this preview image is assumed to be four according to the characteristic information of all distorted regions including this building, and judge that deserving front-distortion grade four be greater than default distortion grade two.Therefore, according to deserving front-distortion grade, this user terminal can determine that target shooting shooting visual angle is 190 degree, under the shooting visual angle of 190 degree, the distortion grade of this image of camera collection with great visual angle can be less than presets the grade two that distorts.Finally, this target shooting 190 degree, visual angle can be presented on preview image by this user terminal.Therefore, user just clearly can know that when shooting visual angle is adjusted to 190 degree, the distortion of this building shot just can be avoided or be corrected by software mode.

Visible, in the method described by Fig. 1, user terminal is when obtaining the characteristic information of preview image of camera collection with great visual angle, can according to this characteristic information, what identify this preview image works as front-distortion grade, when deserving front-distortion grade and being greater than default distortion grade, this user terminal can according to deserving front-distortion grade determination target shooting visual angle, wherein, this with great visual angle camera shooting visual angle for this target shooting visual angle time, the distortion grade of this image of camera collection is with great visual angle less than this and presets distortion grade, and in preview image, show this target shooting visual angle.Pass through the embodiment of the present invention, user terminal can when preview image produces larger distortion, display-object shooting visual angle, to point out user by less for the distortion of taking the picture generation shot after visual angle is adjusted to target shooting visual angle, thus make user disposablely can shoot satisfied picture, improve shooting efficiency.

Refer to Fig. 2, Fig. 2 is the schematic flow sheet of another kind of preview image processing method disclosed in the embodiment of the present invention.Wherein, method shown in Fig. 2 can be applied to smart mobile phone (as Android phone, iOS mobile phone etc.), panel computer, palmtop PC and mobile internet device (MobileInternetDevices, MID), personal digital assistant (PersonalDigitalAssistant, PDA), the user terminal such as media player, intelligent television, intelligent watch, intelligent glasses, Intelligent bracelet, wherein, this user terminal is configured with camera with great visual angle.As shown in Figure 2, the method can comprise the following steps:

S201, user terminal obtain the characteristic information of the preview image of camera collection with great visual angle.

In the embodiment of the present invention, user terminal, before the characteristic information of preview image obtaining camera collection with great visual angle, can also perform following steps:

Step 21) obtain the environmental information of current residing environment.

In specific implementation, environmental information comprises environment bright angle value, uitraviolet intensity value, reference object, shooting background etc., and the embodiment of the present invention does not limit.

In specific implementation, after user terminal enters camera camera application, first this user terminal can obtain the environmental information of its current residing environment, to judge to adopt camera shooting with great visual angle or to adopt the shooting of standard camera head.

Step 22) judge to start in the history environment information of camera with great visual angle whether there is this environmental information.

In specific implementation, after the environmental information getting the current residing environment of this user terminal, this user terminal can judge whether there is this environmental information in the history environment information of the startup that prestores camera with great visual angle, if existed, just starts camera with great visual angle and takes; If there is no, this user terminal does not do any operation.

For example, get when user terminal its residing for the shooting background of environment be a certain scenery or building type time, this user terminal can judge whether include this scenery in the scenery of the former startup camera with great visual angle stored, or whether include building classification in the reference object of the former startup camera with great visual angle stored, if so, this user terminal will start camera with great visual angle and takes.

Again for example, after supposing that user terminal gets the brightness values of current environment, this user terminal can judge whether current brightness values is greater than the brightness threshold value prestored, if be greater than, just start camera with great visual angle to take, if be less than, take with regard to starting standard camera head.Also can be judge that current environment bright angle value is whether identical or close with one of them brightness values in the startup stored with great visual angle the camera history environment information of taking, if so, just start camera with great visual angle and take.

Step 23) when there is this environmental information in the history environment information judging to start camera with great visual angle, starting camera with great visual angle and taking.

In specific implementation, judge to start in the history environment information of camera with great visual angle there is this environmental information when this user terminal, so this user terminal will start camera with great visual angle and takes.Starting before camera is taken with great visual angle, this user terminal can control this reference object with great visual angle in its angular field of view of camera collection, and on the display interface of this user terminal, show the preview image collected.

S202, this user terminal are according to this characteristic information, and what identify this preview image works as front-distortion grade.

S203, in this prior distort grade be greater than preset distortion grade time, this user terminal according to deserve front-distortion grade determination target take visual angle.

As a kind of feasible execution mode, this user terminal identify this preview image after front-distortion grade, can also according to the current shooting visual angle of deserving front-distortion grade and determine this camera with great visual angle, its concrete mode can comprise the following steps:

Step 31) obtain the positional information of this target distorted region at this preview image.

In specific implementation, after user terminal determines the target distorted region of this preview image, the positional information of this target distorted region at this preview image can be obtained.Wherein, this positional information can comprise the area percentage that this target distorted region accounts for this preview image, and this target distorted region is apart from the distance and orientation etc. of the central point of this preview image, and the embodiment of the present invention does not limit.As, this target distorted region is at the 4cm place, upper left side of this preview image, or this target distorted region is at the 4.3cm place, lower right of this preview image, and these can be called the positional information of this target distorted region at this preview image.

Step 32) with this positional information with when front-distortion grade is for foundation, in conjunction with the inquiry of preset relation table and this positional information and shooting visual angle corresponding while of deserving front-distortion grade.

In specific implementation, user terminal can prestore distortion grade, positional information and take the relation table at visual angle, when this user terminal gets this target distorted region after the positional information of preview image, can in conjunction with this preview image (i.e. this target distorted region) when front-distortion grade, find out simultaneously with this positional information and when shooting visual angle corresponding to front-distortion grade.

For example, this target distorted region is at the 4cm place, upper left side of this preview image, the distortion grade of this target distorted region namely this preview image when front-distortion grade be four, finding with this positional information and the shooting visual angle of deserving front-distortion grade simultaneously corresponding from table is 140 degree.

Step 33) this shooting visual angle is defined as the current shooting visual angle of this camera with great visual angle.

In specific implementation, when finding with this positional information and deserving the simultaneously corresponding shooting visual angle of front-distortion grade, this shooting visual angle can be defined as the current shooting visual angle of this visual angle camera by this user terminal.

As the execution mode that another kind is feasible, according to deserving front-distortion grade, this user terminal determines that the concrete mode at this current shooting visual angle of camera with great visual angle can also be:

Positional information due to this target distorted region can determine the ratio of this preview image shared by this target distorted region, can determine the angle that the central point of reference object in this target distorted region and this camera place plane is with great visual angle formed.If the distortion grade of this target distorted region is larger, the critical point of the reference object of this target distorted region the closer to this maximum shooting visual angle of camera is with great visual angle described.And the distortion grade of this target distorted region is less, illustrate that the reference object of this target distorted region is far away apart from the maximum shooting visual angle of this camera with great visual angle.Therefore, this user terminal can calculate the current shooting visual angle of this camera with great visual angle in the positional information of this preview image according to the distortion grade of this target distorted region (i.e. this preview image when front-distortion grade) and this target distorted region.

Optionally, this user terminal determines that the concrete mode at the current shooting visual angle of camera with great visual angle can also be:

Use laser focusing to different angles Emission Lasers, the current shooting visual angle that the laser identification received according to the complementary metal oxide semiconductors (CMOS) (ComplementaryMetal-Oxide-Semiconductor, CMOS) in camera is with great visual angle above-mentioned to be used when camera gathers reference object with great visual angle.

Can be specifically that the laser received according to CMOS judges in running order angle, and using shooting visual angle that in running order angle uses as above-mentioned this preview image of camera collection with great visual angle, wherein, in running order angle is the angle that the laser launched can be received by CMOS.

Optionally, the above-mentioned step determining the current shooting visual angle of camera with great visual angle, can also comprise:

Use above-mentioned camera gathers reference object with great visual angle time use photoflash lamp reference object is glistened, according to the current shooting visual angle being determined above-mentioned camera with great visual angle in preview image by the region of flash fire.

Photoflash lamp specifically can be used to glisten to above-mentioned reference object, and identify by the region of flash fire in preview image, determine the current shooting visual angle of above-mentioned camera with great visual angle according to this region.Due to the angle that photoflash lamp is fixing, if like this in preview image by flash fire region extremely when the edge of image, illustrate that shooting visual angle that the preview image of above-mentioned camera collection with great visual angle uses is less than or equal to the angle of photoflash lamp, when in preview image by the zone line of flash fire region extremely at image time, illustrate that shooting visual angle that the above-mentioned preview image of camera collection with great visual angle uses is greater than the angle of photoflash lamp.

The current shooting visual angle of camera is with great visual angle determined according to the adjustment parameter preset and the corresponding relation at shooting visual angle.

Can be specifically be adjusted parameter and the corresponding relation taking visual angle by experiment, such as: measure when which adjustment parameter camera be with great visual angle in advance, measure the shooting visual angle of camera with great visual angle, thus generate adjustment parameter and the corresponding relation taking visual angle.The current shooting visual angle determining this camera with great visual angle just can be known like this according to this corresponding relation.In addition, can also demonstrate to take visual angle for showing the adjustment interface of data in the adjustment interface of camera with great visual angle, thus user can in this interface adjustment shooting visual angle rapidly.

S204, this user terminal show the Viewing-angle information at this target shooting visual angle in this preview image.

As a kind of feasible execution mode, when this user terminal shows the Viewing-angle information at this target shooting visual angle in this preview image, the Viewing-angle information at this camera current shooting visual angle with great visual angle can also be shown.User can be facilitated so namely can to understand current viewing angles information, also understand the viewing angles information needing adjustment simultaneously, make user to photographing information sharpening more, can be select current shooting viewing angles or select target shooting viewing angles as required when user is taken next time again, promote Consumer's Experience.

As the execution mode that another kind is feasible, this user terminal can also show the distortion information of this target distorted region in the target distorted region of this preview image.

In specific implementation, after this user terminal determines that distortion grade reaches the target distorted region of presetting distortion grade, this user terminal target distorted region corresponding in its preview image can also show the distortion information of this distorted region, that is to say the distortion degree of this target distorted region of display.User can be facilitated like this to understand the distortion situation of each distorted region at any time, with the acquisition parameters making user adjust camera with great visual angle targetedly, thus more satisfied photo can be shot.

The current shooting visual angle of this camera is with great visual angle adjusted to target shooting visual angle by S205, this user terminal.

In the embodiment of the present invention, when user terminal determines the current shooting visual angle of this camera with great visual angle, and after the target shooting visual angle determining to need adjustment, the current shooting visual angle of this camera with great visual angle can be adjusted to target shooting visual angle by this user terminal.

S206, this user terminal control this with great visual angle camera with this target shooting visual angle take, obtain pictures taken.

In the embodiment of the present invention, after the shooting visual angle of camera is with great visual angle adjusted to target shooting visual angle by user terminal, this user terminal just can control this with great visual angle camera take visual angle with this target and take, thus a pictures taken can be obtained.

The Viewing-angle information at this target shooting visual angle is added in this pictures taken by S207, this user terminal.

In the embodiment of the present invention, after user terminal controls camera with great visual angle viewing angles obtains pictures taken with the shooting of this target, can the Viewing-angle information at the target shooting visual angle of the camera with great visual angle of this pictures taken of shooting be added in this pictures taken, to make user when the later stage checks this pictures taken, can clearly understand current photographing information.Also user can be made when this pictures taken being shared away, and other users clearly understand its photographing information, thus take according to this photographing information.

As a kind of feasible execution mode, if when some region of this pictures taken also exists distortion, the distortion information in this region can also be added in this pictures taken by this user terminal.If the effect of this pictures taken is fine, so after this user or other users when using that camera is taken with great visual angle, acquisition parameters can be adjusted targetedly, thus reach identical shooting effect.Be conducive to photo to share.

Visible, in the method described by Fig. 2, user terminal can also show the distortion information of this distorted region in the distorted region of preview image, clearly understand current distortion information when user can be made in preview image to check acquisition parameters, thus suitable acquisition parameters or suitable distortion effect can be selected to reach better shooting effect.And user views after current shooting visual angle and target take visual angle in preview image, very clearly can know the direction needing to adjust acquisition parameters, thus can shoot satisfied picture faster, improve shooting efficiency.Further, shooting Viewing-angle information is adding in the middle of the picture shot by user terminal, and this Information Sharing can be gone out, other users can shoot the picture of same effect under this shooting visual angle.

Refer to Fig. 3, Fig. 3 is the structural representation of a kind of user terminal disclosed in the embodiment of the present invention, for performing above-mentioned preview image processing method.Wherein, this user terminal 300 can include but not limited to smart mobile phone (as Android phone, iOS mobile phone etc.), panel computer, palmtop PC and mobile internet device (MobileInternetDevices, MID), personal digital assistant (PersonalDigitalAssistant, PDA), media player, intelligent television, intelligent watch, intelligent glasses, Intelligent bracelet etc., and this user terminal 300 is configured with camera with great visual angle.As shown in Figure 3, this user terminal 300 can comprise:

Acquisition module 301, for obtaining the characteristic information of the preview image of camera collection with great visual angle.

In the embodiment of the present invention, controlling before camera is taken with great visual angle, acquisition module 301 can gather this reference object with great visual angle in camera angular field of view, obtains the preview image in camera imaging region with great visual angle, and obtains the characteristic information of this preview image.Wherein, the characteristic information of this preview image can include but not limited to the geometric position information etc. of the shape of image, the location distribution information of image slices vegetarian refreshments, the size of image and image.

Identification module 302, for this characteristic information obtained according to above-mentioned acquisition module 301, what identify this preview image works as front-distortion grade.

In the embodiment of the present invention, after acquisition module 301 gets the characteristic information of this preview image, identification module 302 can be contrasted with the characteristic information of the picture taken by standard camera head, thus identify the distortion degree of this preview image, the corresponding distortion grade of multiple distortion degree.Therefore, identification module 302 can according to the distortion degree of this preview image determine this preview image when front-distortion grade.If the distortion grade of distortion degree corresponding to 60% ~ 75% is four.

Optionally, identification module 302 according to this this preview image of characteristic information identification when front-distortion grade can be: choose target distorted region, and identify the distortion grade of target distorted region, using the distortion grade of this target distorted region as this and preview image when front-distortion grade.Can also be: according to this characteristic information, the characteristic information of the picture taken with standard camera head contrasts, thus the region obtaining whole preview image generation distortion accounts for the area of this preview image, when area occupied exceedes certain threshold value, just identify the distortion degree of the distorted region that distortion occurs, ask the mean value of the distortion degree of regional, it can be used as the distortion degree of this preview image, and then according to this distortion degree determine this preview image when front-distortion grade.

Determination module 303, for above-mentioned identification module 302 identify when front-distortion grade be greater than preset distortion grade time, according to deserve front-distortion grade determination target shooting visual angle.

In the embodiment of the present invention, when identification module 302 identify this preview image after front-distortion grade, determination module 303 judges to preset distortion grade when whether front-distortion grade is greater than further, if be greater than, just according to deserving front-distortion grade determination target shooting visual angle, if be less than, just take with the shooting visual angle of deserving front-distortion grade corresponding.Wherein, preset distortion grade can be understood as: in the distortion that this presets below distortion grade, can correct these distortion in the prior art; And in this distortion presetting more than distortion grade, temporarily cannot it be corrected in the prior art, so, after preview image reaches more than default distortion grade, only have the acquisition parameters by adjusting camera with great visual angle just can avoid.

In the embodiment of the present invention, determination module 303 can when being greater than default distortion grade when front-distortion grade, slowly adjustment shooting visual angle, taking visual angle as slowly increased, making this default reference object drop on camera with great visual angle and can not produce in the angular field of view of distortion.The shooting visual angle that the distortion grade of preview image can be made less can be found in this way, be target shooting visual angle.The shooting visual angle that current adjustment can also obtain by determination module 303 stores with distortion grade simultaneously, directly to find out suitable shooting visual angle from the shooting visual angle stored and distortion hierarchical relationship when follow-up needs.

Display module 304, for showing the Viewing-angle information at this target shooting visual angle in this preview image.

In the embodiment of the present invention, after determination module 303 determines this target shooting visual angle, display module 304, just when showing preview image, shows the Viewing-angle information at this target shooting visual angle in this preview image.Under normal circumstances, when needing to take with great visual angle, the coverage of camera shooting is less.Suppose that determination module 303 determines that at shooting visual angle be when 160, the distortion grade of preview image is greater than presets distortion grade three, therefore, according to this distortion grade, when determination module 303 will determine that target shooting visual angle is 180, the distortion grade of the preview image obtained is less than presets distortion grade, so, display module 304 will by the information displaying at this target shooting visual angle 180 in this preview image.Can user's visual information be given in this way, know that to enable user shooting visual angle is adjusted to the distortion including the region of default reference object in the preview image obtained after target takes visual angle will be disappeared or be reduced to and can be come by software correction.

For example, when user needs shooting one building, acquisition module 301 first can obtain with great visual angle camera to the pixel distribution situation of the preview image that this building collects, and then identify the distorted region in this preview image according to pixel distribution situation, according to the characteristic information of all distorted regions including this building, identification module 302 determines that the front-distortion grade of working as of this preview image is assumed to be four again, and judge that deserving front-distortion grade four be greater than default distortion grade two.Therefore, according to deserving front-distortion grade, determination module 303 can determine that target shooting shooting visual angle is 190 degree, under the shooting visual angle of 190 degree, the distortion grade of this image of camera collection with great visual angle can be less than presets the grade two that distorts.Finally, this target shooting 190 degree, visual angle can be presented on preview image by display module 304.Therefore, user just clearly can know that when shooting visual angle is adjusted to 190 degree, the distortion of this building shot just can be avoided or be corrected by software mode.

Visible, in the user terminal described by Fig. 3, user terminal is when obtaining the characteristic information of preview image of camera collection with great visual angle, can according to this characteristic information, what identify this preview image works as front-distortion grade, when deserving front-distortion grade and being greater than default distortion grade, this user terminal can according to deserving front-distortion grade determination target shooting visual angle, wherein, this with great visual angle camera shooting visual angle for this target shooting visual angle time, the distortion grade of this image of camera collection is with great visual angle less than this and presets distortion grade, and in preview image, show this target shooting visual angle.Pass through the embodiment of the present invention, user terminal can when preview image produces larger distortion, display-object shooting visual angle, to point out user by less for the distortion of taking the picture generation shot after visual angle is adjusted to target shooting visual angle, thus make user disposablely can shoot satisfied picture, improve shooting efficiency.

Refer to Fig. 4, Fig. 4 is the structural representation of another kind of user terminal disclosed in the embodiment of the present invention.Wherein, the user terminal 300 shown in Fig. 4 optimizes to obtain on the basis of the user terminal 300 shown in Fig. 3.As shown in Figure 4, this user terminal 300 can also comprise:

Adjusting module 305, for being adjusted to target shooting visual angle by the current shooting visual angle of this camera with great visual angle.

In the embodiment of the present invention, when user terminal 300 determines the current shooting visual angle of this camera with great visual angle, and after determination module 303 determines to need the target shooting visual angle of adjustment, the current shooting visual angle of this camera with great visual angle can be adjusted to target shooting visual angle by adjusting module 305.

Control module 306, for control this with great visual angle camera with this target shooting visual angle take, obtain pictures taken.

In the embodiment of the present invention, after the shooting visual angle of camera is with great visual angle adjusted to target shooting visual angle by adjusting module 305, control module 306 just can control this with great visual angle camera take with this target shooting visual angle, thus a pictures taken can be obtained.

Add module 307, for being added in this pictures taken by the Viewing-angle information at this target shooting visual angle.

In the embodiment of the present invention, after control module 306 controls camera with great visual angle viewing angles obtains pictures taken with the shooting of this target, adding module 307 can be added in this pictures taken by the Viewing-angle information at the target shooting visual angle of the camera with great visual angle of this pictures taken of shooting, to make user when the later stage checks this pictures taken, can clearly understand current photographing information.Also user can be made when this pictures taken being shared away, and other users clearly understand its photographing information, thus take according to this photographing information.

As a kind of feasible execution mode, if when some region of this pictures taken also exists distortion, adding module 307 can also add to the distortion information in this region in this pictures taken.If the effect of this pictures taken is fine, so after this user or other users when using that camera is taken with great visual angle, acquisition parameters can be adjusted targetedly, thus reach identical shooting effect.Be conducive to photo to share.

In the embodiment of the present invention, above-mentioned identification module 302 can comprise recognition unit 3021, first determining unit 3022 and performance element 3023, wherein:

Recognition unit 3021, for the characteristic information got according to acquisition module 301, identifies at least one distorted region in this preview image.

In specific implementation, after acquisition module 301 gets the characteristic information of this preview image, recognition unit 3021 will according to the distorted region in this this preview image of characteristic information identification, this distorted region can be one, also can be multiple, area shared by each distorted region can be equal, also can be not wait, and the embodiment of the present invention does not limit.

Optionally, recognition unit 3021, according to this characteristic information, identifies that the mode of at least one distorted region in this preview image can be:

Optionally, recognition unit 3021, according to this characteristic information, identifies that the mode of at least one distorted region in this preview image can also be:

User terminal 300 has prestored the acquisition parameters of this camera with great visual angle, as reference object can not produce distortion in 2/3 central area, place of preview image, and slight distortion can be produced in annular region between 2/3 to 4/5, and comparatively serious distortion can be produced in annular region between 4/5 to 8/9, and even more serious distortion can be produced in the annular region of 8/9 to 1.Therefore, recognition unit 3021 can according to the regional identifying preview image as above-mentioned area distribution information, by except central area as the region except 2/3 central area, place is all defined as distorted region, and be multiple distorted region according to distortion degree Further Division.

First determining unit 3022, for the distortion information according to target distorted region in this at least one distorted region, determines the distortion grade of this target distorted region.

In specific implementation, after recognition unit 3021 identifies at least one distorted region, first determining unit 3022 can choose target distorted region from this at least one distorted region, and calculate the distortion information of this target distorted region, and then determine the distortion grade of this target distorted region according to the distortion information of this target distorted region.Wherein, the quantity of target distorted region can be one, also can be multiple; When this target distorted region is multiple, the area of each target distorted region can be equal, also can not wait; Can be the corresponding distortion grade of polytype distortion information, can also be the corresponding distortion grade of distortion information of a type, the embodiment of the present invention limit.

Performance element 3023, for the distortion grade of this target distorted region that the first determining unit 3022 is determined as this preview image when front-distortion grade.

In specific implementation, after the first determining unit 3022 determines the distortion grade of target distorted region, performance element 3023 this distortion grade can be defined as this preview image when front-distortion grade.That is, when including default reference object in distorted region, or time the reference object that default reference object type is identical (as being personage), performance element 3023 can using the distortion grade of this distorted region as this preview image when front-distortion grade.Obviously, the distortion grade comprising the distorted region of this default reference object can represent the distortion grade of whole preview image completely, that determines this preview image in this way works as front-distortion grade, not only can save user terminal calculation resources, improves computational efficiency.When adjusting, just can also reach by adjusting this part distorted region the effect adjusting whole preview image, also improving the regulated efficiency of user terminal 300 equally.

As a kind of feasible execution mode, above-mentioned first determining unit 3022 can comprise judgment sub-unit 30221, determines subelement 30222 and perform subelement 30223, wherein:

Judgment sub-unit 30221, for for each distorted region, judges whether there is default reference object in this distorted region.

Determining subelement 30222, during for judging to there is this default reference object in this distorted region in above-mentioned judgment sub-unit 30221, this distorted region being defined as target distorted region.

Perform subelement 30223, for the distortion information according to this target distorted region, determine the distortion grade of this target distorted region.

Concrete, user terminal 300 can preset some reference objects as important reference object, as personage, animal, building, the sun etc.After recognition unit 3021 identifies at least one distorted region, judgment sub-unit 30221 can for each distorted region, judge in this distorted region, whether to there is this default reference object, if existed, just show that the reference object comprised in this target distorted region is important reference object, or be main reference object, determine that this distorted region is just defined as target distorted region by subelement 30222.

Concrete, after determining that target distorted region determined by subelement 30222, perform subelement 30223 can determine this target distorted region distortion grade according to the distortion information of this target distorted region.

For example, suppose that presetting distortion grade is three, even if photo is shot in the distorted region that distortion grade is less than three, this distorted region can be repaired by later stage software, and the grade that distorts is more than or equal to the distorted region of three, the later stage is difficult to repair it.Therefore, after acquisition module 301 gets the characteristic information of preview image, recognition unit 3021 can identify multiple distorted region according to this characteristic information, then judgment sub-unit 30221 can judge for each distorted region, judge reference object that this distorted region comprises whether with the reference object preset as personage, animal match, if when determining this reference object for personage, determine that this distorted region is just defined as target distorted region by subelement 30222.Then performing the distortion grade that subelement 30223 will calculate this target distorted region according to the distortion information of this target distorted region is four.

Optionally, perform subelement 30223 according to the distortion information of this target distorted region, determine that the concrete mode of the distortion grade of this target distorted region can be: the characteristic information of this target distorted region and default characteristic information are contrasted, obtain the distortion information of this target distorted region; From the distortion grade that the distortion information preset is corresponding with the distortion information obtaining this target distorted region distortion hierarchical relationship.

In specific implementation, after determining that subelement 30222 determines target distorted region from this at least one distorted region, perform subelement 30223 can further the characteristic information of this target distorted region and the characteristic information preset be contrasted, obtain the distortion degree of this target distorted region, as distorted 20%, still distorted 50%, even distorted 90%, and the percentage of each distorted position this target distorted region shared in this target distorted region.And then according to determining the distortion grade of this target distorted region in the distortion information prestored and distortion hierarchical relationship.

For example, suppose that the reference object that this distorted region comprises is part personage head portrait, and the pixel distributed intelligence of this part personage head portrait is compared with the pixel distributed intelligence of the human head picture collected by standard camera head prestored, show that in this target distorted region, this part personage head portrait distortion degree is 45%, in distortion information with distortion hierarchical relationship, distortion grade corresponding to the distortion degree of 1% ~ 30% is one, and the distortion grade corresponding to the distortion degree of 31% ~ 50% is two, distortion grade corresponding to the distortion degree of 51% ~ 65% is three.Therefore, execution subelement 30223 can find the distortion grade corresponding to distortion degree of 45% from distortion information and distortion hierarchical relationship is two.

In the embodiment of the present invention, above-mentioned acquisition module 301 is also for obtaining the positional information of this target distorted region at this preview image.

In specific implementation, after stator unit 30222 determines the target distorted region of this preview image to the first determining unit 3022 in identification module 302 really, acquisition module 301 can obtain the positional information of this target distorted region at this preview image.Wherein, this positional information can comprise the area percentage that this target distorted region accounts for this preview image, and this target distorted region is apart from the distance and orientation etc. of the central point of this preview image, and the embodiment of the present invention does not limit.As, this target distorted region is at the 4cm place, upper left side of this preview image, or this target distorted region is at the 4.3cm place, lower right of this preview image, and these can be called the positional information of this target distorted region at this preview image.

In the embodiment of the present invention, this user terminal 300 can also comprise:

Enquiry module 308, for the positional information that gets with acquisition module 301 and identification module 302 identify when front-distortion grade be foundation, in conjunction with the inquiry of preset relation table and this positional information and shooting visual angle corresponding while of deserving front-distortion grade.

In specific implementation, user terminal 300 can prestore distortion grade, positional information and take the relation table at visual angle, when acquisition module 301 gets this target distorted region after the positional information of preview image, can in conjunction with this preview image (i.e. this target distorted region) when front-distortion grade, find out simultaneously with this positional information and when shooting visual angle corresponding to front-distortion grade.

In the embodiment of the present invention, the shooting visual angle of above-mentioned determination module 303 also for being inquired by enquiry module 308 is defined as the current shooting visual angle of this camera with great visual angle.

In specific implementation, find with this positional information when enquiry module 308 and deserve the simultaneously corresponding shooting visual angle of front-distortion grade, this shooting visual angle can be defined as the current shooting visual angle of this visual angle camera by determination module 303.

In the embodiment of the present invention, determination module 303 determines that the concrete mode at this current shooting visual angle of camera with great visual angle can also be:

Positional information due to this target distorted region can determine the ratio of this preview image shared by this target distorted region, can determine the angle that the central point of reference object in this target distorted region and this camera place plane is with great visual angle formed.If the distortion grade of this target distorted region is larger, the critical point of the reference object of this target distorted region the closer to this maximum shooting visual angle of camera is with great visual angle described.And the distortion grade of this target distorted region is less, illustrate that the reference object of this target distorted region is far away apart from the maximum shooting visual angle of this camera with great visual angle.Therefore, determination module 303 can calculate the current shooting visual angle of this camera with great visual angle in the positional information of this preview image according to the distortion grade of this target distorted region (i.e. this preview image when front-distortion grade) and this target distorted region.

Optionally, determination module 303 determines that the concrete mode at the current shooting visual angle of camera with great visual angle can also be:

Can be specifically be adjusted parameter and the corresponding relation taking visual angle by experiment, such as: measure when which adjustment parameter camera be with great visual angle in advance, measure the shooting visual angle of camera with great visual angle, thus generate adjustment parameter and the corresponding relation taking visual angle.The current shooting visual angle of this camera with great visual angle just clearly can be determined like this according to this corresponding relation.In addition, can also demonstrate to take visual angle for showing the adjustment interface of data in the adjustment interface of camera with great visual angle, thus user can in this interface adjustment shooting visual angle rapidly.

In the embodiment of the present invention, when above-mentioned display module 305 shows the Viewing-angle information at this target shooting visual angle in this preview image, the Viewing-angle information at this camera current shooting visual angle with great visual angle can also be shown.User can be facilitated so namely can to understand current viewing angles information, also understand the viewing angles information needing adjustment simultaneously, make user to photographing information sharpening more, can be select current shooting viewing angles or select target shooting viewing angles as required when user is taken next time again, promote Consumer's Experience.

In the embodiment of the present invention, above-mentioned display module 305 also for showing the distortion information of this target distorted region in the target distorted region of this preview image.

In specific implementation, after determining that subelement 30222 determines that distortion grade reaches the target distorted region of presetting distortion grade, display module 305 target distorted region corresponding in its preview image can also show the distortion information of this distorted region, that is to say the distortion degree of this target distorted region of display.User can be facilitated like this to understand the distortion situation of each distorted region at any time, with the acquisition parameters making user adjust camera with great visual angle targetedly, thus more satisfied photo can be shot.

In the embodiment of the present invention, acquisition module 301 is before the characteristic information obtaining the preview image that camera with great visual angle collects reference object, and this user terminal 300 can also perform following operation:

Obtain the environmental information of current residing environment.

In specific implementation, after user terminal 300 enters camera camera application, first this user terminal 300 can obtain the environmental information of its current residing environment, to judge to adopt camera shooting with great visual angle or to adopt the shooting of standard camera head.

Judge to start in the history environment information of camera with great visual angle whether there is this environmental information.

In specific implementation, after the environmental information getting the current residing environment of this user terminal, this user terminal 300 can judge whether there is this environmental information in the history environment information of the startup that prestores camera with great visual angle, if existed, just starts camera with great visual angle and takes; If there is no, this user terminal does not do any operation.

For example, get when user terminal 300 its residing for the shooting background of environment be a certain scenery or building type time, this user terminal 300 can judge whether include this scenery in the scenery of the former startup camera with great visual angle stored, or whether include building classification in the reference object of the former startup camera with great visual angle stored, if so, this user terminal 300 will start camera with great visual angle and takes.

Again for example, after supposing that user terminal 300 gets the brightness values of current environment, this user terminal 300 can judge whether current brightness values is greater than the brightness threshold value prestored, if be greater than, just start camera with great visual angle to take, if be less than, take with regard to starting standard camera head.Also can be judge that current environment bright angle value is whether identical or close with one of them brightness values in the startup stored with great visual angle the camera history environment information of taking, if so, just start camera with great visual angle and take.

When there is this environmental information in the history environment information judging to start camera with great visual angle, starting camera with great visual angle and taking.

In specific implementation, judge to start in the history environment information of camera with great visual angle there is this environmental information when this user terminal 300, so this user terminal 300 will start camera with great visual angle and takes.Starting before camera is taken with great visual angle, this user terminal 300 can control this reference object with great visual angle in its angular field of view of camera collection, and on the display interface of this user terminal 300, show the preview image collected.

Visible, in the user terminal described by Fig. 4, user terminal can also show the distortion information of this distorted region in the distorted region of preview image, clearly understand current distortion information when user can be made in preview image to check acquisition parameters, thus suitable acquisition parameters or suitable distortion effect can be selected to reach better shooting effect.And user views after current shooting visual angle and target take visual angle in preview image, very clearly can know the direction needing to adjust acquisition parameters, thus can shoot satisfied picture faster, improve shooting efficiency.Further, shooting Viewing-angle information is adding in the middle of the picture shot by user terminal, and this Information Sharing can be gone out, other users can shoot the picture of same effect under this shooting visual angle.

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.

Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.

Claims

1. a preview image processing method, is characterized in that, comprising:

2. method according to claim 1, is characterized in that, described according to described characteristic information, and what identify described preview image works as front-distortion grade, comprising:

3. method according to claim 2, is characterized in that, the distortion information of target distorted region at least one distorted region described in described basis, determines the distortion grade of described target distorted region, comprising:

4. method according to claim 3, is characterized in that, the described distortion information according to described target distorted region, determines the distortion grade of described target distorted region, comprising:

5. the method according to any one of claim 2 ~ 4, is characterized in that, described method also comprises:

6. method according to claim 5, is characterized in that, described method also comprises:

Described target shooting visual angle is added in described pictures taken.

7. method according to claim 5, is characterized in that, described method also comprises:

8. a user terminal, is characterized in that, comprising:

9. user terminal according to claim 8, is characterized in that, described identification module comprises recognition unit, the first determining unit and performance element, wherein:

10. user terminal according to claim 9, is characterized in that, described first determining unit comprises judgment sub-unit, determines subelement and perform subelement, wherein:

11. user terminals according to claim 10, is characterized in that, described execution subelement, according to the distortion information of described target distorted region, determines that the concrete mode of the distortion grade of described target distorted region is:

12. user terminals according to any one of claim 9 ~ 11, is characterized in that,

Described user terminal also comprises:

13. user terminals according to claim 12, is characterized in that, described user terminal also comprises:

14. user terminals according to claim 12, is characterized in that,