CN104754216A - Photographing method and device - Google Patents

Abstract

An embodiment of the invention discloses a photographing method and a device. The method comprises the following step: under the shooting mode, identifying the human facial feature of the caught shot picture and acquiring the position of the first facial feature and the position of the second facial feature in the human facial feature, and the first facial feature and the second facial feature are symmetrical in the human facial feature; judging whether the human face is in the preset region of the shot picture or not according to the position of the first facial feature and the position of the second facial feature; if the human face is not in the preset region of the shot picture, generating prompt message for prompting to adjust the camera, enabling the human face in the preset region. By adopting the photographing method and the device, the prompt message is generated according to the position relationship of the human facial feature of the person to be shot in the caught shot picture under the photographing mode, so that the photographer can adjust the camera for photographing the picture, the human face position of which is at the middle according to the prompt message, and relatively good photographing effect can be achieved.

Description

A kind of photographic method and device

Technical field

The present invention relates to intelligent terminal field, particularly relate to a kind of photographic method and device.

Background technology

Along with mobile phone, panel computer, popularizing of the intelligent terminals such as photographing device, people often use camera application built-in or external in intelligent terminal to carry out shooting static images or dynamic clip, to take pictures the requisite functional module become in intelligent terminal field, along with popularizing of application of taking pictures, people are also more and more higher to the requirement of taking pictures, often wish the zone line face of personage being put shooting interface, thus take and more coordinate photo attractive in appearance, in prior art, generally need the personnel of taking pictures according to the preview effect in shooting interface, the position of manual adjustment mobile terminal thus make the character facial of shooting occupy the zone line at shooting interface as much as possible, generally exactly character facial cannot be adjusted to the zone line at shooting interface.

Summary of the invention

Embodiment of the present invention technical problem to be solved is, a kind of photographic method and device are provided, achieve under exposal model, according to the position relationship residing for the face features of personage to be captured in shooting picture, generate information, to make photographer according to information adjustment camera thus to take face location photo placed in the middle, to reach better shooting effect.

First aspect, embodiments provides a kind of photographic method, comprising:

Under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Whether be in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

If not, generate information, to point out adjustment camera, be in described predeterminable area to make described face.

In conjunction with first aspect, in the implementation that the first is possible, specifically comprise in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the point midway of the position of described first facial feature and the position line of described second facial characteristics;

Judge whether described face is in the predeterminable area of described shooting picture according to the offset distance between described point midway and the center position of described shooting picture.

In conjunction with first aspect, in the implementation that the second is possible, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, specifically comprises in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the first distance between the position of described first facial feature and the first edge of described shooting picture;

Obtain the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

Judge whether described face is in the predeterminable area of described shooting picture according to described first distance and described second distance.

In conjunction with first aspect, in the implementation that the third is possible, described generation information specifically comprises:

Generate and point out icon and/or suggestion voice to indicate the adjustment direction of described camera.

In conjunction with first aspect, in the 4th kind of possible implementation, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, and the position of the first facial feature in the described face features of described acquisition and the position of the second facial characteristics specifically comprise:

By setting up first coordinate position of position in described coordinate position relation of first facial feature described in coordinate position Relation acquisition, and obtain second coordinate position of position in described coordinate position relation of described second facial characteristics;

Specifically comprise in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the first distance between described first coordinate position to described first edge, and obtain the second distance between described second coordinate to described second edge;

Whether be less than or equal to predetermined threshold value according to described first distance and the difference of described second distance and judge whether described face is in the predeterminable area of described shooting picture;

Described generation information specifically comprises:

Generating according to described difference and described predetermined threshold value points out icon and/or suggestion voice to indicate the adjustment direction of described camera.

Second aspect, embodiments provides a kind of camera arrangement, comprising:

Acquisition module, for under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Whether judge module, for being in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

Reminding module, if detect that described face is not in the predeterminable area of described shooting picture for described detecting unit, generates information, to point out adjustment camera, is in described predeterminable area to make described face.

In conjunction with second aspect, in the implementation that the first is possible, described judge module comprises:

First acquiring unit, for the point midway of the position line of the position and described second facial characteristics that obtain described first facial feature;

According to the offset distance between described point midway and the center position of described shooting picture, first judging unit, for judging whether described face is in the predeterminable area of described shooting picture.

In conjunction with second aspect, in the implementation that the second is possible, described shooting picture comprises the first edge and the second edge, and described first edge is the edge be not connected in described shooting picture with described second edge, and described judge module comprises:

Second acquisition unit, for obtaining the first distance between the position of described first facial feature and the first edge of described shooting picture;

3rd acquiring unit, for obtaining the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

According to described first distance and described second distance, second judging unit, for judging whether described face is in the predeterminable area of described shooting picture.

In conjunction with second aspect, in the implementation that the third is possible, described generation module points out icon and/or suggestion voice to indicate the adjustment direction of described camera specifically for generating.

In conjunction with second aspect, in the 4th kind of possible implementation, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, described acquisition module specifically for first coordinate position of the position by setting up first facial feature described in coordinate position Relation acquisition in described coordinate position relation, and obtains second coordinate position of position in described coordinate position relation of described second facial characteristics;

Described judge module comprises:

4th acquiring unit, for obtaining the first distance between described first coordinate position to described first edge, and obtains the second distance between described second coordinate to described second edge;

For whether being less than or equal to predetermined threshold value according to described first distance and the difference of described second distance, 3rd judging unit, judges whether described face is in the predeterminable area of described shooting picture;

Described generation module points out icon and/or suggestion voice to indicate the adjustment direction of described camera specifically for generating according to described difference and described predetermined threshold value.

By implementing the embodiment of the present invention, under exposal model, by identifying the face features of personage to be captured in shooting picture, to obtain in face features two the symmetrical positions of facial characteristics in shooting picture, thus obtain two symmetrical facial characteristics and divide distance between two edges being clipped in shooting picture, the centre position of shooting picture whether is according to the face of the Distance Judgment personage to be captured between two edges, thus generation information, camera is adjusted according to information to make photographer, or point out person to be captured to move, thus the face location of person to be captured is occupy the centre position of shooting picture, to reach better shooting effect.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, 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 the photographic method that the embodiment of the present invention provides;

Fig. 1 a is the shooting surface chart of the first embodiment in the photographic method that provides of the embodiment of the present invention;

Fig. 2 is the schematic flow sheet of the second embodiment of the photographic method that the embodiment of the present invention provides;

Fig. 2 a is the shooting surface chart of the second embodiment in the photographic method that provides of the embodiment of the present invention;

Fig. 3 is the schematic flow sheet of the 3rd embodiment of the photographic method that the embodiment of the present invention provides;

Fig. 3 a is the shooting surface chart of the 3rd embodiment in the photographic method that provides of the embodiment of the present invention;

Fig. 4 is the schematic flow sheet of the 4th embodiment of the photographic method that the embodiment of the present invention provides;

Fig. 4 a is the schematic diagram of the reference axis in the photographic method that provides of the embodiment of the present invention;

Fig. 5 is the structural representation of the camera arrangement that the embodiment of the present invention provides;

Fig. 6 is the structural representation of the first embodiment of the judge module that the embodiment of the present invention provides;

Fig. 7 is the structural representation of the second embodiment of the judge module that the embodiment of the present invention provides;

Fig. 8 is the structural representation of the 3rd embodiment of the judge module that the embodiment of the present invention provides.

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.

It should be noted that, the term used in embodiments of the present invention is only for the object describing specific embodiment, and not intended to be limiting the present invention." one ", " described " and " being somebody's turn to do " of the singulative used in the embodiment of the present invention and appended claims is also intended to comprise most form, unless context clearly represents other implications.It is also understood that term "and/or" used herein refer to and comprise one or more project of listing be associated any or all may combine.

Embodiments provide a kind of photographic method and device, achieve under exposal model, according to the position relationship residing for the face features of personage to be captured in shooting picture, generate information, to make photographer according to information adjustment camera thus to take face location photo placed in the middle, to reach better shooting effect.For the ease of understanding the embodiment of the present invention, first the photographic method of the embodiment of the present invention is described below.

See Fig. 1, be the schematic flow sheet of the first embodiment of the photographic method that the embodiment of the present invention provides, the method is applied to terminal, and the method comprises:

Step S101: under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Particularly, for existing photo terminal, such as digital camera or mobile phone camera, generally all there is face identification functions, after described photo terminal enters exposal model, photo terminal catches the face of personage to be captured according to camera, and by camera identification face features in the preview interface of shooting picture or described photo terminal, thus the position of first facial feature in acquisition face features and the position of the second facial characteristics, wherein said first facial characteristic sum second facial characteristics is feature symmetrical in described face features, such as left eye and right eye, left ear and auris dextra etc.

It should be noted that, when described personage to be captured is far away apart from described camera, first facial feature and described second facial characteristics of described personage to be captured can regard two points as in described shooting picture, when described personage to be captured is nearer apart from described camera, described first facial feature and the described second facial characteristics region area shared by described shooting picture is larger, then need the primary importance of central point in described shooting picture determining described first facial feature, and the second place of central point in described shooting picture of described second facial characteristics.Can by forming the first rectangle frame at the outline of described first facial feature, the position of described first facial feature is determined by the position of central point in described shooting picture of described first rectangle frame, form the second rectangle frame at the outline of described second facial characteristics, determined the position of described second facial characteristics by the position of central point in described shooting picture of described second rectangle frame.

Further, can see Fig. 1 a, for the shooting surface chart of described photo terminal, second facial characteristics described in wherein said first facial characteristic sum is respectively left eye 1011 (note: left eye here refers to the actual left eye of people, do not refer to the eyes kept left in screen) and right eye 1012, the camera of photo terminal catches the face of personage to be captured, by the left eye 1011 in camera identification face features and right eye 1012, and the left eye outline place in the preview interface of described shooting picture or described photo terminal forms rectangle frame 1013 corresponding to a left eye position, and form rectangle frame 1014 corresponding to a right eye position at right eye outline place, the position of described first facial feature can be obtained by the position of the central point obtaining rectangle frame 1013 corresponding to described left eye position, i.e. left eye position, the position of described second facial characteristics can be obtained by the position of the central point obtaining rectangle frame 1014 corresponding to right eye position, i.e. right eye position.

Step S103: whether be in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

Particularly, the position of described first facial feature got according to camera and the position analysis of described second facial characteristics judge whether the face of described personage to be captured is in the predeterminable area of shooting picture, and the predeterminable area of described shooting picture can be the center position area of the preview interface of described shooting picture or described photo terminal.When the face of personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal, show that the shooting effect of taking pictures is better, do not need to provide prompting, photographer directly takes pictures; When the face of personage to be captured is not in the predeterminable area of the preview interface of described shooting picture or described photo terminal, represent that the skew of the face of described personage to be captured in the preview interface of described shooting picture or described photo terminal is larger, the shooting effect of taking pictures is not good, therefore, described photo terminal is by generating information, prompting photographer adjusts camera, is in the predeterminable area of the preview interface of described shooting picture or described photo terminal to make the face of described personage to be captured.If judge that face is not in the predeterminable area of described shooting picture, enter step S105, if judge that face is in the predeterminable area of described shooting picture, the information of taking pictures can be generated, prompting user can directly take pictures, and the embodiment of the present invention is for process ends.

Further, can judge whether the face of described personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal by the offset distance of the center analyzing the point midway of line and the preview interface of described shooting picture or described photo terminal between the position of described first facial feature and the position of described second facial characteristics, also can by the distance at an edge in the position that to obtain described first facial feature respectively to the preview interface of shooting picture or described photo terminal, the distance at another relative edge in the position of described second facial characteristics to the preview interface of shooting picture or described photo terminal, whether be in the predeterminable area of the preview interface of described shooting picture or described photo terminal by the face of personage to be captured described in two Distance Judgments.Between the position of wherein said first facial feature and the position of described second facial characteristics, the offset distance of the center of the point midway of line and the preview interface of described shooting picture or described photo terminal is less, represent that the head portrait of described personage to be captured is more placed in the middle in the preview interface of described shooting picture or described photo terminal, shooting effect also can be better.In the position of described first facial feature to the preview interface of described shooting picture or described photo terminal, in the distance at an edge and the position of described second facial characteristics to the preview interface of described shooting picture or described photo terminal, the difference of the distance at another relative edge is less, represent that the head portrait of described personage to be captured is more placed in the middle in the preview interface of described shooting picture or described photo terminal, shooting effect also can be better.Therefore, the embodiment of the present invention can arrange a preset range, to adjust described offset distance or described difference is in described preset range and reaches good shooting effect.

Step S105: generate information, described information moves, until described offset information is in described preset range for pointing out the placed in the middle or personage to be captured of adjustment camera lens.

Particularly, when judging that the face of described personage to be captured is not in the predeterminable area of described shooting picture, namely the face of described personage to be captured is not in the central area in described shooting picture, then camera terminal needs to generate information, to point out photographer to adjust camera, occupy in the predeterminable area of described shooting picture to make the face location of described personage to be captured.

Further, described photo terminal can send information of voice prompt according to self audio devices, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of described personage to be captured, in the process of the described camera of adjustment, determine the offset distance of the point midway of line and the center of described shooting picture between the position of described first facial feature and the position of described second facial characteristics in real time, and constantly provide information of voice prompt, until described offset distance or described difference are in preset range.Wherein said information of voice prompt comprises two kinds, and one is that prompting photographer moves described photo terminal, and another kind is that prompting personage to be captured moves, and voice reminder information can be pointed out on photographer and move, moves down, moves to left, moves to right.Described photo terminal also can generate prompting icon, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of personage to be captured, icon is wherein pointed out to include but not limited to: prompting arrow, described prompting icon can point out photographer just to move up in level or vertical etc., until described offset distance or described difference are in preset range, prompting photographer has pressed the button once photo taking, prompting icon can be two reference axises sent from certain position, also can be send from certain location point and point to the Direction Line of described shooting picture central point, or other forms, the embodiment of the present invention does not do concrete restriction.

Further, be the schematic flow sheet of the second embodiment of the photographic method that the embodiment of the present invention provides as shown in Figure 2, the method is applied to terminal, and the method comprises:

Step S201: under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Particularly, for existing photo terminal, such as digital camera or mobile phone camera, generally all there is face identification functions, after described photo terminal enters exposal model, photo terminal catches the face of personage to be captured according to camera, and by camera identification face features in the preview interface of shooting picture or described photo terminal, thus the position of first facial feature in acquisition face features and the position of the second facial characteristics, wherein said first facial characteristic sum second facial characteristics is feature symmetrical in described face features, such as left eye and right eye, left ear and auris dextra etc.

It should be noted that, when described personage to be captured is far away apart from described camera, first facial feature and described second facial characteristics of described personage to be captured can regard two points as in described shooting picture, when described personage to be captured is nearer apart from described camera, described first facial feature and the described second facial characteristics region area shared by described shooting picture is larger, then need the primary importance of central point in described shooting picture determining described first facial feature, and the second place of central point in described shooting picture of described second facial characteristics.Can by forming the first rectangle frame at the outline of described first facial feature, the position of described first facial feature is determined by the position of central point in described shooting picture of described first rectangle frame, form the second rectangle frame at the outline of described second facial characteristics, determined the position of described second facial characteristics by the position of central point in described shooting picture of described second rectangle frame.

Further, can see Fig. 1 a, for the shooting surface chart of described photo terminal, second facial characteristics described in wherein said first facial characteristic sum is respectively left eye 1011 (note: left eye here refers to the actual left eye of people, do not refer to the eyes kept left in screen) and right eye 1012, the camera of photo terminal catches the face of personage to be captured, by the left eye 1011 in camera identification face features and right eye 1012, and the left eye outline place in the preview interface of described shooting picture or described photo terminal forms rectangle frame 1013 corresponding to a left eye position, and form rectangle frame 1014 corresponding to a right eye position at right eye outline place, the position of described first facial feature can be obtained by the position of the central point obtaining rectangle frame 1013 corresponding to described left eye position, i.e. left eye position, the position of described second facial characteristics can be obtained by the position of the central point obtaining rectangle frame 1014 corresponding to right eye position, i.e. right eye position.

Step S203: the point midway obtaining the position of described first facial feature and the position line of described second facial characteristics;

Particularly, photo terminal is by the position of described first facial feature that gets in the preview interface of described shooting picture or described photo terminal and the position of described second facial characteristics, the position of the position of described first facial feature with described second facial characteristics is connected, thus obtains the point midway of the position of described first facial feature and the position line of described second facial characteristics.

Further, can, see Fig. 2 a, be the shooting surface chart of described photo terminal, in described shooting picture, can determine that the mid point of the line of left eye 1011 position and right eye 1012 position is 1015.

Step S205: judge whether described face is in the predeterminable area of described shooting picture according to the offset distance between described point midway and the center position of described shooting picture;

Particularly, photo terminal is according to the center position of the position of the described first facial feature got and the point midway of position line of described second facial characteristics and the preview interface of described shooting picture or described photo terminal, calculate the position of described first facial feature and the offset distance between the point midway of position line of described second facial characteristics and the center position of the preview interface of described shooting picture or described photo terminal, by judging that offset distance judges whether the face of described personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal.When the face of described personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal, then show that the shooting effect of taking pictures is better, do not need to provide prompting, photographer directly takes pictures; When the face of described personage to be captured is not in the predeterminable area of the preview interface of described shooting picture or described photo terminal, represent that the skew of face in described shooting picture of described personage to be captured is larger, the shooting effect of taking pictures is not good, therefore, described photo terminal is by generating information, prompting photographer adjusts camera, is in the predeterminable area of the preview interface of described shooting picture or described photo terminal to make the face of described personage to be captured.If judge that face is not in the predeterminable area of described shooting picture, enter step S207, if judge that face is in the predeterminable area of described shooting picture, the information of taking pictures can be generated, prompting user can directly take pictures, and the embodiment of the present invention is for process ends.

Further, the offset distance of the position of wherein said first facial feature and the point midway of position line of described second facial characteristics and the center position of described shooting picture is less, represent that the head portrait of described personage to be captured is more placed in the middle in the preview interface of described shooting picture or described photo terminal, shooting effect also can be better.Therefore, the embodiment of the present invention can arrange a preset range, to adjust described offset distance or described difference is in described preset range and reaches good shooting effect.Can see Fig. 2 a, for the shooting surface chart of described photo terminal, wherein the mid point of left eye and right eye position line is 1015, the central point of the preview interface of described shooting picture or described photo terminal is 1016, then according to the Distance Judgment between described mid point 1015 and described central point 1016, whether can be in the zone line of the preview interface of described shooting picture or described photo terminal by the face of personage to be captured.

Step S207: generate information, to point out adjustment camera, be in described predeterminable area to make described face.

Particularly, when judging that the face of described personage to be captured is not in the predeterminable area of described shooting picture, namely the face of described personage to be captured is not in the central area in described shooting picture, then camera terminal needs to generate information, to point out photographer to adjust camera, occupy in the predeterminable area of described shooting picture to make the face location of described personage to be captured.

Further, described photo terminal can send information of voice prompt according to self audio devices, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of described personage to be captured, in the process of the described camera of adjustment, determine the offset distance of the point midway of line and the center of described shooting picture between the position of described first facial feature and the position of described second facial characteristics in real time, and constantly provide information of voice prompt, until described offset distance or described difference are in preset range.Wherein said information of voice prompt comprises two kinds, and one is that prompting photographer moves described photo terminal, and another kind is that prompting personage to be captured moves, and voice reminder information can be pointed out on photographer and move, moves down, moves to left, moves to right.Described photo terminal also can generate prompting icon, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of personage to be captured, icon is wherein pointed out to include but not limited to: prompting arrow, described prompting icon can point out photographer just to move up in level or vertical etc., until described offset distance or described difference are in preset range, prompting photographer has pressed the button once photo taking, prompting icon can be two reference axises sent from certain position, also can be send from certain location point and point to the Direction Line of described shooting picture central point, or other forms, the embodiment of the present invention does not do concrete restriction.Can see Fig. 2 a, for the shooting surface chart of described photo terminal, when the point midway of described left eye and right eye is positioned at the oblique upper of described shooting picture center position, generate the arrow pointing to oblique upper, described arrow can optional position in described shooting picture, and prompting photographer adjusts camera.

Further, be the schematic flow sheet of the 3rd embodiment of the photographic method that the embodiment of the present invention provides as shown in Figure 3, the method is applied to terminal, and the method comprises:

Step S301: under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Particularly, for existing photo terminal, such as digital camera or mobile phone camera, generally all there is face identification functions, after described photo terminal enters exposal model, photo terminal catches the face of personage to be captured according to camera, and by camera identification face features in the preview interface of shooting picture or described photo terminal, thus the position of first facial feature in acquisition face features and the position of the second facial characteristics, wherein said first facial characteristic sum second facial characteristics is feature symmetrical in described face features, such as left eye and right eye, left ear and auris dextra etc.

It should be noted that, when described personage to be captured is far away apart from described camera, first facial feature and described second facial characteristics of described personage to be captured can regard two points as in described shooting picture, when described personage to be captured is nearer apart from described camera, described first facial feature and the described second facial characteristics region area shared by described shooting picture is larger, then need the primary importance of central point in described shooting picture determining described first facial feature, and the second place of central point in described shooting picture of described second facial characteristics.Can by forming the first rectangle frame at the outline of described first facial feature, the position of described first facial feature is determined by the position of central point in described shooting picture of described first rectangle frame, form the second rectangle frame at the outline of described second facial characteristics, determined the position of described second facial characteristics by the position of central point in described shooting picture of described second rectangle frame.

Further, can see Fig. 1 a, for the shooting surface chart of described photo terminal, second facial characteristics described in wherein said first facial characteristic sum is respectively left eye 1011 (note: left eye here refers to the actual left eye of people, do not refer to the eyes kept left in screen) and right eye 1012, the camera of photo terminal catches the face of personage to be captured, by the left eye 1011 in camera identification face features and right eye 1012, and the left eye outline place in the preview interface of described shooting picture or described photo terminal forms rectangle frame 1013 corresponding to a left eye position, and form rectangle frame 1014 corresponding to a right eye position at right eye outline place, the position of described first facial feature can be obtained by the position of the central point obtaining rectangle frame 1013 corresponding to described left eye position, i.e. left eye position, the position of described second facial characteristics can be obtained by the position of the central point obtaining rectangle frame 1014 corresponding to right eye position, i.e. right eye position.

Step S303: obtain the first distance between the position of described first facial feature and the first edge of described shooting picture;

Particularly, photo terminal passes through the first distance between the first edge of the preview interface obtaining described first facial feature and described shooting picture or described photo terminal in described shooting picture, such as by right hand edge (or the left hand edge of the left eye to shooting picture that obtain personage to be captured, or top edge, or lower limb) distance or right hand edge (or left hand edge by the left eye to the preview interface of described photo terminal that obtain personage to be captured, or top edge, or lower limb) distance obtain between described first facial feature and the first edge of described shooting picture the first distance.

Further, can see Fig. 3 a, be the shooting surface chart of described photo terminal, the first edge is the right margin 1017 of the preview interface of described photo terminal, and left eye is to right margin distance 1019.

Step S305: obtain the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

Particularly, photo terminal passes through the second distance between the second edge of the preview interface obtaining described second facial characteristics and described shooting picture or described photo terminal in described shooting picture, such as by left hand edge (or the right hand edge of the right eye to shooting picture that obtain personage to be captured, or lower limb, or top edge) distance or left hand edge (or right hand edge by the right eye to the preview interface of described photo terminal that obtain personage to be captured, or lower limb, or top edge) distance obtain between described second facial characteristics and the second edge of described shooting picture second distance.Wherein, when described first edge is the right hand edge of the preview interface of described shooting picture or described photo terminal, described second edge is the left hand edge of the preview interface of described shooting picture or described photo terminal, when described first edge is the top edge of the preview interface of described shooting picture or described photo terminal, described second edge is the lower limb of the preview interface of described shooting picture or described photo terminal, namely described first edge and described second edge for described in take pictures in the preview interface of picture or described photo terminal two relative edges.

Further, can see Fig. 3 a, be the shooting surface chart of described photo terminal, the second edge is the left margin 1018 of the preview interface of described photo terminal, and right eye is to left margin distance 1020.

Step S307: judge whether described face is in the predeterminable area of described shooting picture according to described first distance and described second distance;

Particularly, according to described first distance and the described second distance got, judge that whether described first distance is identical with described second distance, or whether the difference between described first distance and described second distance is in preset range, if so, then show that the face of described personage to be captured is in the zone line of the preview interface of described shooting picture or described photo terminal.If not, then show that the face of described personage to be captured is not in the zone line of the preview interface of described shooting picture or described photo terminal, when the face of described personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal, then show that the shooting effect of taking pictures is better, do not need to provide prompting, photographer directly takes pictures; When the face of described personage to be captured is not in the predeterminable area of the preview interface of described shooting picture or described photo terminal, represent that the skew of the face of described personage to be captured in the preview interface of described shooting picture or described photo terminal is larger, the shooting effect of taking pictures is not good, therefore, described photo terminal is by generating information, prompting photographer adjusts camera, is in the predeterminable area of described shooting picture to make the face of described personage to be captured.If judge that face is not in the predeterminable area of described shooting picture, enter step S309, if judge that face is in the predeterminable area of described shooting picture, the information of taking pictures can be generated, prompting user can directly take pictures, and the embodiment of the present invention is for process ends.

Further, can see Fig. 3 a, for the shooting surface chart of described photo terminal, according to the distance 1019 of left eye to right margin, and right eye to left margin distance 1020 between difference judge whether the face of described personage to be captured is in the central area of described shooting picture.

Step S309: generate information, to point out adjustment camera, be in described predeterminable area to make described face.

Particularly, when judging that the face of described personage to be captured is not in the predeterminable area of described shooting picture, namely the face of described personage to be captured is not in the central area in described shooting picture, then camera terminal needs to generate information, to point out photographer to adjust camera, occupy in the predeterminable area of described shooting picture to make the face location of described personage to be captured.

Further, described photo terminal can send information of voice prompt according to self audio devices, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of described personage to be captured, in the process of the described camera of adjustment, determine the offset distance of the point midway of line and the center of described shooting picture between the position of described first facial feature and the position of described second facial characteristics in real time, and constantly provide information of voice prompt, until described offset distance or described difference are in preset range.Wherein said information of voice prompt comprises two kinds, and one is that prompting photographer moves described photo terminal, and another kind is that prompting personage to be captured moves, and voice reminder information can be pointed out on photographer and move, moves down, moves to left, moves to right.Described photo terminal also can generate prompting icon, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of personage to be captured, icon is wherein pointed out to include but not limited to: prompting arrow, described prompting icon can point out photographer just to move up in level or vertical etc., until described offset distance or described difference are in preset range, prompting photographer has pressed the button once photo taking, prompting icon can be two reference axises sent from certain position, also can be send from certain location point and point to the Direction Line of described shooting picture central point, or other forms, the embodiment of the present invention does not do concrete restriction.Can see Fig. 3 a, be the shooting surface chart of described photo terminal, described distance 1019 is less than 1020, then generate sensing level arrow to the right.

Further, be the schematic flow sheet of the 4th embodiment of the photographic method that the embodiment of the present invention provides as shown in Figure 4, the method is applied to terminal, and the method comprises:

Step S401: under exposal model, identify the face features in the shooting picture captured, by setting up first coordinate position of position in described coordinate position relation of first facial feature described in coordinate position Relation acquisition, and obtain second coordinate position of position in described coordinate position relation of described second facial characteristics;

Particularly, for existing photo terminal, such as digital camera or mobile phone camera, generally all there is face identification functions, after described photo terminal enters exposal model, photo terminal catches the face of personage to be captured according to camera, and by camera identification face features in the preview interface of shooting picture or described photo terminal, thus the position of first facial feature in acquisition face features and the position of the second facial characteristics, wherein said first facial characteristic sum second facial characteristics is feature symmetrical in described face features, such as left eye and right eye, left ear and auris dextra etc.Can by setting up coordinate position relation or setting up reference axis, obtain first coordinate position of position in described coordinate position relation or reference axis of described first facial feature, obtain second coordinate position of position in described coordinate position relation or reference axis of described second facial characteristics, the point in the most lower left corner in the preview interface of described shooting picture or described photo terminal can be set to the initial point of reference axis, with the X direction that the horizontal direction of the preview interface of described shooting picture or described photo terminal is reference axis, reference axis is set up with the y direction that the vertical direction of the preview interface of described shooting picture or described photo terminal is reference axis, in described reference axis, obtain first coordinate position of position in described reference axis (transverse axis coordinate position or ordinate of orthogonal axes position) of described first facial feature, and obtain second coordinate position of position in described reference axis (transverse axis coordinate position or ordinate of orthogonal axes position) of described second facial characteristics.

Further, when the second facial characteristics described in described first facial characteristic sum be left eye and right eye time, camera terminal catches the face of personage to be captured by camera, by the left eye in camera identification face features and right eye, and the left eye outline place in the preview interface of shooting picture or photo terminal forms a rectangle frame, and form another rectangle frame at right eye outline place, the position of first facial feature can be obtained by the position obtaining left eye rectangle frame central point, i.e. left eye position, the position of the second facial characteristics can be obtained by the position obtaining right eye rectangle frame central point, i.e. right eye position.In described reference axis, obtain first coordinate position of described left eye position in described reference axis (transverse axis coordinate position or ordinate of orthogonal axes position), and obtain second coordinate position of described right eye position in described reference axis (transverse axis coordinate position or ordinate of orthogonal axes position).

It should be noted that, when described personage to be captured is far away apart from described camera, first facial feature and described second facial characteristics of described personage to be captured can regard two points as in described shooting picture, when described personage to be captured is nearer apart from described camera, described first facial feature and the described second facial characteristics region area shared by described shooting picture is larger, then need the primary importance of central point in described shooting picture determining described first facial feature, and the second place of central point in described shooting picture of described second facial characteristics.Can by forming the first rectangle frame at the outline of described first facial feature, the position of described first facial feature is determined by the position of central point in described shooting picture of described first rectangle frame, form the second rectangle frame at the outline of described second facial characteristics, determined the position of described second facial characteristics by the position of central point in described shooting picture of described second rectangle frame.

Step S403: obtain the first distance between described first coordinate position to described first edge, and obtain the second distance between described second coordinate to described second edge;

Particularly, by described first coordinate position (transverse axis coordinate position or ordinate of orthogonal axes position) got in described reference axis, and described second coordinate position (transverse axis coordinate position or ordinate of orthogonal axes position) obtains the first distance between described first coordinate position to described first edge, and obtain the second distance between described second coordinate position to described second edge.Such as in described reference axis by right hand edge (or the left hand edge of the left eye position to described shooting picture that obtain described personage to be captured, or top edge, or lower limb) distance or right hand edge (or left hand edge by the left eye to the preview interface of described photo terminal that obtain personage to be captured, or top edge, or lower limb) distance obtain between described first facial feature and the first edge of described shooting picture the first distance, and the right eye position obtaining personage to be captured is to left hand edge (or the right hand edge of shooting picture, or lower limb, or top edge) distance or left hand edge (or right hand edge by the right eye to the preview interface of described photo terminal that obtain personage to be captured, or lower limb, or top edge) distance obtain between described second facial characteristics and the second edge of described shooting picture second distance.

Step S405: whether be less than or equal to predetermined threshold value according to described first distance and the difference of described second distance and judge whether described face is in the predeterminable area of described shooting picture;

Particularly, according to described first distance and the described second distance got, judge that difference between described first distance and described second distance is whether in preset range, if so, then show that the face of described personage to be captured is in the zone line of the preview interface of described shooting picture or described photo terminal.If not, then show that the face of described personage to be captured is not in the zone line of the preview interface of described shooting picture or described photo terminal, when the face of personage to be captured is in the predeterminable area of the preview interface of described shooting picture or described photo terminal, then show that the shooting effect of taking pictures is better, do not need to provide prompting, photographer directly takes pictures; When the face of personage to be captured is not in the predeterminable area of the preview interface of described shooting picture or described photo terminal, represent that the skew of face in described shooting picture of described personage to be captured is larger, the shooting effect of taking pictures is not good, therefore, described photo terminal is by generating information, prompting photographer adjusts camera, is in the predeterminable area of described shooting picture to make the face of described personage to be captured.If judge that face is not in the predeterminable area of described shooting picture, enter step S407, if judge that face is in the predeterminable area of described shooting picture, the information of taking pictures can be generated, prompting user can directly take pictures, and the embodiment of the present invention is for process ends.

Step S407: generate information, to point out adjustment camera, be in described predeterminable area to make described face.

Particularly, when judging that the face of described personage to be captured is not in the predeterminable area of described shooting picture, namely the face of described personage to be captured is not in the central area in described shooting picture, then camera terminal needs to generate information, to point out photographer to adjust camera, occupy in the predeterminable area of described shooting picture to make the face location of described personage to be captured.

Further, described photo terminal can send information of voice prompt according to self audio devices, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of described personage to be captured, in the process of the described camera of adjustment, determine the offset distance of the point midway of line and the center of described shooting picture between the position of described first facial feature and the position of described second facial characteristics in real time, and constantly provide information of voice prompt, until described offset distance or described difference are in preset range.Wherein said information of voice prompt comprises two kinds, and one is that prompting photographer moves described photo terminal, and another kind is that prompting personage to be captured moves, and voice reminder information can be pointed out on photographer and move, moves down, moves to left, moves to right.Described photo terminal also can generate prompting icon, camera is adjusted to point out photographer, be in the predeterminable area of described shooting picture to make the face of personage to be captured, icon is wherein pointed out to include but not limited to: prompting arrow, described prompting icon can point out photographer just to move up in level or vertical etc., until described offset distance or described difference are in preset range, prompting photographer has pressed the button once photo taking, prompting icon can be two reference axises sent from certain position, also can be send from certain location point and point to the Direction Line of described shooting picture central point, or other forms, the embodiment of the present invention does not do concrete restriction.

Further, can see Fig. 4 a, for the schematic diagram of the reference axis in the embodiment of the present invention, in wherein said shooting picture, the point of most position, the lower left corner is reference axis initial point, coordinate figure is (0, 0), if right eye coordinate is (x1, y1), left eye coordinates is (x2, y2), if the width of described shooting picture is X, length is Y, then whether can be in the central area of described shooting picture by the head portrait of personage to be captured described in the width of coordinate figure and described shooting picture or length computation, by judging the adjustment direction of the positive and negative values prompting photographer of y1-y2, if y1-y2>0, then point out photographer's preview interface turning clockwise described shooting picture or described photo terminal, if y1-y2<0, then photographer is pointed out to be rotated counterclockwise the preview interface of described shooting picture or described photo terminal, also the adjustment mode of described photographer can be pointed out by judgement coordinate relation in a certain direction, such as by judging that (X-x2)-x1 positive and negative judges that the preview interface of described shooting picture or described photo terminal should horizontal left or level moves to right, as (X-x2)-x1>0, prompting photographer is by the preview interface horizontal left of described shooting picture or described photo terminal, as (X-x2)-x1<0, prompting photographer move to right the preview interface level of described shooting picture or described photo terminal.

The above-mentioned method illustrating the embodiment of the present invention, below for the ease of implementing the such scheme of the embodiment of the present invention better, correspondingly, is also provided for coordinating the relevant apparatus implementing such scheme below.

The structural representation of the camera arrangement that the embodiment of the present invention as shown in Figure 5 provides, camera arrangement 50 comprises: acquisition module 501, judge module 503 and reminding module 505, wherein

Acquisition module 501, for under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Whether judge module 503, for being in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

Tip element 505, if detect that described face is not in the predeterminable area of described shooting picture for described detecting unit, generates information, to point out adjustment camera, is in described predeterminable area to make described face.

Will be understood that, the function of each functional module of the camera arrangement 50 of the present embodiment according to the method specific implementation of above-mentioned Fig. 1 embodiment of the method, can repeat no more herein.

Further, the structural representation of the first embodiment of the judge module that the embodiment of the present invention as shown in Figure 6 provides, described judge module 503 can comprise: the first acquiring unit 5031 and the first judging unit 5033, wherein

First acquiring unit 5031, for the point midway of the position line of the position and described second facial characteristics that obtain described first facial feature;

According to the offset distance between described point midway and the center position of described shooting picture, first judging unit 5033, for judging whether described face is in the predeterminable area of described shooting picture.

Will be understood that, the function of each functional module of the judge module 503 of the present embodiment according to the method specific implementation of above-mentioned Fig. 2 embodiment of the method, can repeat no more herein.

Further, the structural representation of the second embodiment of the judge module that the embodiment of the present invention as shown in Figure 7 provides, described judge module 503 can comprise: second acquisition unit 5035, the 3rd acquiring unit 5037 and the second judging unit 5039, wherein

Second acquisition unit 5035, for obtaining the first distance between the position of described first facial feature and the first edge of described shooting picture;

3rd acquiring unit 5037, for obtaining the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

According to described first distance and described second distance, second judging unit 5039 is for judging whether described face is in the predeterminable area of described shooting picture.

Will be understood that, the function of each functional module of the judge module 503 of the present embodiment according to the method specific implementation of above-mentioned Fig. 3 embodiment of the method, can repeat no more herein.

Further, the structural representation of the 3rd embodiment of the judge module that the embodiment of the present invention as shown in Figure 8 provides, described judge module 503 can comprise: the 4th acquiring unit 50311 and the 3rd judging unit 50313, wherein

4th acquiring unit 517, for obtaining the first distance between described first coordinate position to described first edge, and obtains the second distance between described second coordinate to described second edge;

For whether being less than or equal to predetermined threshold value according to described first distance and the difference of described second distance, 3rd judging unit 519, judges whether described face is in the predeterminable area of described shooting picture;

Will be understood that, the function of each functional module of the judge module 503 of the present embodiment according to the method specific implementation of above-mentioned Fig. 4 embodiment of the method, can repeat no more herein.

In sum, by implementing the embodiment of the present invention, under exposal model, by identifying the face features of personage to be captured in shooting picture, to obtain in face features two the symmetrical positions of facial characteristics in shooting picture, thus obtain two symmetrical facial characteristics and divide distance between two edges being clipped in shooting picture, the centre position of shooting picture whether is according to the face of the Distance Judgment personage to be captured between two edges, thus generation information, camera is adjusted according to information to make photographer, or point out person to be captured to move, thus the face location of person to be captured is occupy the centre position of shooting picture, to reach better shooting effect.

Module in all embodiments of the present invention or submodule, universal integrated circuit can be passed through, such as CPU (Central Processing Unit, central processing unit), or realized by ASIC (Application SpecificIntegrated Circuit, application-specific integrated circuit (ASIC)).

The sequence of steps of the method for the embodiment of the present invention can carry out adjusting, merge or deleting according to actual needs.The module of the terminal of the embodiment of the present invention can carry out integrating according to actual needs, Further Division or delete.

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-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.

Claims (10)

1. a photographic method, is characterized in that, comprising:

Under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Whether be in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

If not, generate information, to point out adjustment camera, be in described predeterminable area to make described face.

2. the method for claim 1, is characterized in that, specifically comprises in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the point midway of the position of described first facial feature and the position line of described second facial characteristics;

Judge whether described face is in the predeterminable area of described shooting picture according to the offset distance between described point midway and the center position of described shooting picture.

3. the method for claim 1, it is characterized in that, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, specifically comprises in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the first distance between the position of described first facial feature and the first edge of described shooting picture;

Obtain the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

Judge whether described face is in the predeterminable area of described shooting picture according to described first distance and described second distance.

4. the method for claim 1, is characterized in that, described generation information specifically comprises:

Generate and point out icon and/or suggestion voice to indicate the adjustment direction of described camera.

5. the method for claim 1, it is characterized in that, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, and the position of the first facial feature in the described face features of described acquisition and the position of the second facial characteristics specifically comprise:

By setting up first coordinate position of position in described coordinate position relation of first facial feature described in coordinate position Relation acquisition, and obtain second coordinate position of position in described coordinate position relation of described second facial characteristics;

Specifically comprise in the predeterminable area whether the position judgment face of the described position according to described first facial feature and described second facial characteristics is in described shooting picture:

Obtain the first distance between described first coordinate position to described first edge, and obtain the second distance between described second coordinate to described second edge;

Whether be less than or equal to predetermined threshold value according to described first distance and the difference of described second distance and judge whether described face is in the predeterminable area of described shooting picture;

Described generation information specifically comprises:

Generating according to described difference and described predetermined threshold value points out icon and/or suggestion voice to indicate the adjustment direction of described camera.

6. a camera arrangement, is characterized in that, comprising:

Acquisition module, for under exposal model, identify the face features in the shooting picture captured, thus obtaining the position of the first facial feature in described face features and the position of the second facial characteristics, described first facial feature and described second facial characteristics are feature symmetrical in described face features;

Whether judge module, for being in the predeterminable area of described shooting picture according to the position of described first facial feature and the position judgment face of described second facial characteristics;

Reminding module, if detect that described face is not in the predeterminable area of described shooting picture for described detecting unit, generates information, to point out adjustment camera, is in described predeterminable area to make described face.

7. device as claimed in claim 6, it is characterized in that, described judge module comprises:

First acquiring unit, for the point midway of the position line of the position and described second facial characteristics that obtain described first facial feature;

According to the offset distance between described point midway and the center position of described shooting picture, first judging unit, for judging whether described face is in the predeterminable area of described shooting picture.

8. device as claimed in claim 6, it is characterized in that, described shooting picture comprises the first edge and the second edge, and described first edge is the edge be not connected in described shooting picture with described second edge, and described judge module comprises:

Second acquisition unit, for obtaining the first distance between the position of described first facial feature and the first edge of described shooting picture;

3rd acquiring unit, for obtaining the second distance between the position of described second facial characteristics and the second edge of described shooting picture;

According to described first distance and described second distance, second judging unit, for judging whether described face is in the predeterminable area of described shooting picture.

9. device as claimed in claim 6, is characterized in that, described generation module points out icon and/or suggestion voice to indicate the adjustment direction of described camera specifically for generating.

10. device as claimed in claim 6, it is characterized in that, described shooting picture comprises the first edge and the second edge, described first edge is the edge be not connected in described shooting picture with described second edge, described acquisition module specifically for first coordinate position of the position by setting up first facial feature described in coordinate position Relation acquisition in described coordinate position relation, and obtains second coordinate position of position in described coordinate position relation of described second facial characteristics;

Described judge module comprises:

4th acquiring unit, for obtaining the first distance between described first coordinate position to described first edge, and obtains the second distance between described second coordinate to described second edge;

For whether being less than or equal to predetermined threshold value according to described first distance and the difference of described second distance, 3rd judging unit, judges whether described face is in the predeterminable area of described shooting picture;

Described generation module points out icon and/or suggestion voice to indicate the adjustment direction of described camera specifically for generating according to described difference and described predetermined threshold value.