CN105657397A - 3D video play adjusting method and system - Google Patents
3D video play adjusting method and system Download PDFInfo
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- CN105657397A CN105657397A CN201511026379.4A CN201511026379A CN105657397A CN 105657397 A CN105657397 A CN 105657397A CN 201511026379 A CN201511026379 A CN 201511026379A CN 105657397 A CN105657397 A CN 105657397A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/261—Image signal generators with monoscopic-to-stereoscopic image conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/139—Format conversion, e.g. of frame-rate or size
Abstract
The invention discloses a 3D video play adjusting method. The method comprises the following steps: determining a play format of the 3D video according to a target frame image acquired in the 3D video; intercepting a half area of the image from the target frame image according to the play format of the 3D video and a preset interception rule, and obtaining a sub image; converting the target frame image into a 3D image, and separating a left eye image and a right eye image from the 3D image according to the play format of the 3D video; determining whether a current play effect of the 3D video is that the left eye and the right eye are reverse according to the preset interception rule, the sub image and the separated left eye image and the right eye image; and if the current play effect of the 3D video is that the left eye and the right eye are reverse, then performing left eye image and right eye image switching playing on the 3D video. The invention further discloses a 3D video play system. By adopting the 3D video play adjusting method and system provided by the invention, the play effect of the 3D video is suitable for users, and an optimal visual effect can be given to the users.
Description
Technical field
The present invention relates to 3D TV technology, particularly relate to a kind of 3D video playback inflation method and system.
Background technology
The principle of 3D imaging is that the content that left and right eyes are seen is different, and such two eyes have just had parallax, and parallax can form a three-dimensional illusion in the brain of people. common, when by 3D device plays 3D video, this 3D equipment provides left-eye image and eye image respectively, the left eyes of user are it is seen that the image of corresponding left eyes, right eyes are it is seen that the image of corresponding right eyes, stereo-picture is just defined like this in the brain of user, but, 3D equipment is when playing 3D video, the problem that often right and left eyes can be occurred anti-, make the left eyes of user it is seen that the image of corresponding right eyes, right eyes are it is seen that the image of corresponding left eyes, user's eyes when watching 3D video are caused to be felt bad very much, and the vision effect of impact viewing. in the prior art, when playing 3D video, cannot determine to play the problem whether occurring right and left eyes anti-, and then 3D video playback cannot be adjusted accordingly, affect the viewing experience of user.
Foregoing, only for the auxiliary technical scheme understanding the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
The main purpose of the present invention is to provide a kind of 3D video playback inflation method and system, it is intended to solve in prior art, when playing 3D video, cannot determine to play the problem whether occurring right and left eyes anti-, and then the technical problem that 3D video playback cannot be adjusted accordingly.
For achieving the above object, the present invention provides a kind of 3D video playback inflation method, and the method comprises:
The broadcast format of described 3D video is determined according to the target frame image obtained in 3D video; Described target frame image is the two field picture obtained in the current 3D video play;
Broadcast format according to described 3D video, according to the half region of default intercepting rule cut-away view picture from described target frame image, obtains subgraph;
Convert described target frame image to 3D rendering, and the broadcast format according to described 3D video isolates left-eye image and eye image from described 3D rendering;
The left-eye image of regular, subgraph and separation according to described default intercepting and eye image, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-;
If it is anti-that the current result of broadcast of described 3D video is right and left eyes, then described 3D video is carried out the switching of right and left eyes image and plays.
Preferably, rule, the left-eye image of subgraph and separation and eye image is intercepted according to described, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
Calculate described subgraph and the similarity of described left-eye image; And calculate described subgraph and the similarity of described eye image;
Regular and the similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image according to described intercepting, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-.
Preferably, the broadcast format of described 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
Preferably, according to described intercepting rule and the similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
When described intercept the odd column of broadcast format to be the broadcast format of the capable and corresponding described 3D video of odd number of level intertexture form cut-away view picture be vertically intertexture form cut-away view picture that rule for the broadcast format of corresponding described 3D video is the left region of left-right format cut-away view picture, the broadcast format of corresponding described 3D video is the upper area of top-down format cut-away view picture, corresponding described 3D video time, judge whether the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image;
If the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image, then determine that the current result of broadcast of described 3D video is that right and left eyes is anti-.
Preferably, according to described intercepting rule and the similarity of subgraph and described left-eye image and the similarity of subgraph and described eye image, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
When described intercept rule for the broadcast format of corresponding described 3D video is the right areas of left-right format cut-away view picture, the broadcast format of corresponding described 3D video be the lower region of top-down format cut-away view picture, corresponding described 3D video broadcast format be the even column that the even number line of level intertexture form cut-away view picture and the broadcast format of corresponding described 3D video are vertically intertexture form cut-away view picture time, judge whether the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image;
If the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image, then determine that the current result of broadcast of described 3D video is that right and left eyes is anti-.
, for achieving the above object, in addition the present invention also provides a kind of 3D video playback adjustment System, and this system comprises:
Form determination module, for determining the broadcast format of described 3D video according to the target frame image obtained in 3D video; Described target frame image is the two field picture obtained in the current 3D video play;
Interception module, for the broadcast format according to the described 3D video determined, according to the half region of default intercepting rule cut-away view picture from described target frame image, obtains subgraph;
Extraction module, for converting described target frame image to 3D rendering, and the broadcast format according to described 3D video isolates left-eye image and eye image from described 3D rendering;
Determination module, for the left-eye image according to described default intercepting rule, subgraph and separation and eye image, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-;
Processing module, for being right and left eyes inverse time in the current result of broadcast of described 3D video, carries out the switching of right and left eyes image and plays described 3D video.
Preferably, described determination module comprises:
Calculate unit, for calculating described subgraph and the similarity of described left-eye image; And calculate described subgraph and the similarity of described eye image;
Determining unit, for the regular and similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image according to described intercepting, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-.
Preferably, the broadcast format of described 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
Preferably, described determining unit comprises:
First judgment sub-unit, for when described intercept the odd column of broadcast format to be the broadcast format of the capable and corresponding described 3D video of odd number of level intertexture form cut-away view picture be vertically intertexture form cut-away view picture that rule for the broadcast format of corresponding described 3D video is the left region of left-right format cut-away view picture, the broadcast format of corresponding described 3D video is the upper area of top-down format cut-away view picture, corresponding described 3D video time, judge whether the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image;
First determines subelement, for when the similarity of described subgraph and described left-eye image is less than the similarity of described subgraph and described eye image, it is determined that the current result of broadcast of described 3D video is that right and left eyes is anti-.
Preferably, comprise according to determining unit:
2nd judgment sub-unit, for when described intercept rule for the broadcast format of corresponding described 3D video is the right areas of left-right format cut-away view picture, the broadcast format of corresponding described 3D video be the lower region of top-down format cut-away view picture, corresponding described 3D video broadcast format be the even column that the even number line of level intertexture form cut-away view picture and the broadcast format of corresponding described 3D video are vertically intertexture form cut-away view picture time, judge whether the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image;
2nd determines subelement, for when the similarity of described subgraph and described eye image is less than the similarity of described subgraph and described left-eye image, it is determined that the current result of broadcast of described 3D video is that right and left eyes is anti-.
The 3D video playback inflation method of the present invention and system, the method comprises: the broadcast format determining described 3D video according to the target frame image obtained in 3D video; Described target frame image is the two field picture obtained in the current 3D video play; Broadcast format according to the described 3D video determined, according to the half region of default intercepting rule cut-away view picture from described target frame image, obtains subgraph; Convert described target frame image to 3D rendering, and the broadcast format according to described 3D video isolates left-eye image and eye image from described 3D rendering; The left-eye image of regular, subgraph and separation according to described default intercepting and eye image, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-; If it is anti-that the current result of broadcast of described 3D video is right and left eyes, then described 3D video is carried out the switching of right and left eyes image and plays; Right and left eyes is anti-can to determine the current result of broadcast of this 3D video, when the current result of broadcast of this 3D video is right and left eyes inverse time, this 3D video carries out the switching of right and left eyes image and plays; The result of broadcast of this 3D video is made to be applicable to user, to the vision effect of user's the best.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the first embodiment of 3D video playback inflation method of the present invention;
Fig. 2 is the schematic flow sheet of the 2nd embodiment of 3D video playback inflation method of the present invention;
Fig. 3 is the structural representation of 3D video playback adjustment System of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
Being the schematic flow sheet of the first embodiment of 3D video playback inflation method of the present invention with reference to Fig. 1, Fig. 1, the method comprises:
S10, the broadcast format determining this 3D video according to the target frame image obtained in 3D video; This target frame image is the two field picture obtained in the current 3D video play.
The feature of 3D video is divided into left eye signal and right eye signal, this kind of signal is likely a line right eye signal of left eye signal a line, also a likely left eye signal right eye signal, it is also possible in a field signal, upper half part is left eye signal, lower portion is left eye signal, or left side part is left eye signal, and right-hand part part is right eye signal. The broadcast format of certain 3D video just above these, it is also possible to be other form.
In this step, obtaining a two field picture from the current 3D video play, as target frame image, this target frame image comprises left eye signal and right eye signal; The broadcast format of this 3D video is determined according to this target frame image. This target frame image can be the present frame that this 3D video is showing broadcasting in terminal. The broadcast format of this 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
In one embodiment, determine that according to this target frame image the step of the broadcast format of this 3D video comprises: the broadcast format of this 3D video is carried out a kind of hypothesis currently, according to this hypothesis, this target frame image is carried out left-eye image to be separated with eye image, left-eye image and eye image to this separation carries out similarity judgement again, meet the then current hypothesis of simulated condition to set up, otherwise, change current hypothesis, re-start separation and judge, until default all broadcast formats all being assumed according to the method for exhaustion. these all broadcast formats preset comprise left-right format, top-down format, level intertexture form, vertically interweave form, when the broadcast format of this 3D video is assumed, assume that order can be any, as, assume that order is followed successively by: left-right format, top-down format, level intertexture form, vertically interweave form, namely the broadcast format first assuming this 3D video is left-right format, when the broadcast format of this 3D video is not left-right format, the broadcast format then continuing this 3D video of hypothesis is top-down format, when the broadcast format of this 3D video is not top-down format, the broadcast format then continuing this 3D video of hypothesis is level intertexture form, when the broadcast format of this 3D video is not level intertexture form, then continue to assume that the broadcast format of this 3D video is for the form that vertically interweaves. according to this hypothesis, this target frame image carries out the step that left-eye image is separated with eye image to comprise: when the broadcast format assumed is left-right format, this target frame image is carried out cuing open point of left-right format, left side half image is formed left-eye image or eye image, the right half image is formed eye image or left-eye image, when the broadcast format assumed is top-down format, this target frame image is carried out cuing open point of top-down format, top half image is formed left-eye image or eye image, by following half image composition eye image or left-eye image, when the broadcast format assumed is level intertexture form, this target frame image carrying out cuing open point of level intertexture form, extract odd number capable composition left-eye image or eye image out, extraction even number line forms eye image or left-eye image, when the broadcast format assumed is vertical intertexture form, this target frame image is carried out cuing open point of vertical intertexture form, extracts odd column composition left-eye image or eye image out, extract even column out and form eye image or left-eye image.
S11, broadcast format according to this 3D video, according to the half region of default intercepting rule cut-away view picture from this target frame image, obtain subgraph.
The broadcast format of different 3D videos, corresponding intercepting rule is different, the intercepting rule that the broadcast format of each 3D video is corresponding is set, as: when the broadcast format of 3D video is left-right format, the intercepting rule that this is preset is intercept the left region of target frame image or intercept the right area of target frame image; When the broadcast format of 3D video is top-down format, the intercepting rule that this is preset is intercept the upper area of target frame image or intercept the lower region of target frame image; When the broadcast format of 3D video is level intertexture form, this preset intercepting rule for intercept target frame image odd number capable or intercept target frame image even number line; When the broadcast format of 3D video be vertically intertexture form time, intercepting rule that this is preset is for intercepting the odd column of target frame image or intercept the even column of target frame image.
In one embodiment, the broadcast format of this 3D video is left-right format, and default intercepting rule is the left region intercepting target frame image, then in this step, the left side of cut-away view picture from this target frame image, obtains subgraph; In another embodiment, the broadcast format of this 3D video is left-right format, and default intercepting rule is the right areas intercepting target frame image, then in this step, the right-hand part of cut-away view picture from this target frame image, obtains subgraph.
S12, convert this target frame image to 3D rendering, and the broadcast format according to this 3D video isolates left-eye image and eye image from this 3D rendering.
In this step, according to the broadcast format of this 3D video, this 3D rendering is separated, to obtain left-eye image and eye image.
The left-eye image of S13, subgraph regular according to this intercepting and separation and eye image, it is determined that whether the current result of broadcast of this 3D video is that right and left eyes is anti-, if it does, then perform step S14.
Concrete, calculate the similarity of this subgraph and this left-eye image; And calculate the similarity of this subgraph and this eye image; Regular and the similarity of this subgraph and this left-eye image and the similarity of subgraph and this eye image according to this intercepting, it is determined that whether the current result of broadcast of this 3D video is that right and left eyes is anti-.
In one embodiment, the step of the similarity calculating this subgraph and this left-eye image is: extract color feature value from this subgraph and left-eye image respectively, calculates the similarity of this subgraph and this left-eye image according to two color feature value extracted; This color feature value can use color histogram graph representation. With reason, the step of the similarity calculating this subgraph and this eye image is: extract color feature value from this subgraph and eye image respectively, calculates the similarity of this subgraph and this eye image according to two color feature value extracted; This color feature value can color histogram graph representation.
In another embodiment, the step of the similarity calculating this subgraph and this left-eye image is: respectively this subgraph and left-eye image are carried out FFT computing (FastFourierTransformation, fast Fourier transform), obtain a FFT operation result and the 2nd FFT operation result; Respectively the real part of a FFT operation result and the 2nd FFT operation result is normalized, and gets the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain first and value and the 2nd and value; By this first and value and the 2nd and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this left-eye image. With reason, the step of the similarity calculating this subgraph and this eye image is: respectively this subgraph and eye image are carried out FFT computing, obtains the 3rd FFT operation result and the 4th FFT operation result; Respectively the real part of the 3rd FFT operation result and the 4th FFT operation result is normalized, and gets the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain the 3rd and value and the 4th and value; By the 3rd and value and the 4th and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this eye image. The value of this N can be arranged as required, common, and this N can be set to 3.
In one embodiment, regular and the similarity of this subgraph and this left-eye image and the similarity of subgraph and this eye image according to this intercepting, whether the current result of broadcast determining this 3D video is the anti-step of right and left eyes: when this intercepting rule is for should the broadcast format of 3D video be the left region of left-right format cut-away view picture, to should the broadcast format of 3D video be the upper area of top-down format cut-away view picture, to should the broadcast format of 3D video be the odd number of level intertexture form cut-away view picture capable and to should the broadcast format of 3D video be the odd column of vertically intertexture form cut-away view picture time, judge whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, if the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, then determine that the current result of broadcast of this 3D video is that right and left eyes is anti-. this intercepting rule is for should the broadcast format of 3D video be the left region of left-right format cut-away view picture, to should the broadcast format of 3D video be the upper area of top-down format cut-away view picture, to should the broadcast format of 3D video be the odd number of level intertexture form cut-away view picture capable and to should the broadcast format of 3D video be the odd column of vertically intertexture form cut-away view picture time, judge whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, subgraph and the similarity of this eye image it is more than or equal to when the similarity of this subgraph and this left-eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of left-eye image that user sees in this target frame image and user is identical, the current result of broadcast that can determine this 3D video is that right and left eyes is normal, subgraph and the similarity of this eye image it is less than when the similarity of this subgraph and this left-eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of the left-eye image that user sees in this target frame image and user is not identical, the eye image seen in the left-eye image that user sees in this target frame image and the user 3D rendering after this target frame image is changed is identical, can determine that the current result of broadcast of this 3D video is that right and left eyes is anti-.
In another embodiment, regular and the similarity of this subgraph and this left-eye image and the similarity of subgraph and this eye image according to this intercepting, whether the current result of broadcast determining this 3D video is the anti-step of right and left eyes: when this intercepting rule is for should the broadcast format of 3D video be the right areas of left-right format cut-away view picture, to should the broadcast format of 3D video be the lower region of top-down format cut-away view picture, to should the broadcast format of 3D video be level intertexture form cut-away view picture even number line and to should the broadcast format of 3D video be the even column of vertically intertexture form cut-away view picture time, judge whether the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, if the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, then determine that the current result of broadcast of this 3D video is that right and left eyes is anti-. this intercepting rule is the right areas of cut-away view picture, the lower region of cut-away view picture, during the even column of the even number line of cut-away view picture or cut-away view picture, judge whether the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, subgraph and the similarity of this left-eye image it is more than or equal to when the similarity of this subgraph and this eye image, then think that the eye image seen in 3D rendering after this target frame image is changed of eye image that user sees in this target frame image and user is identical, the current result of broadcast that can determine this 3D video is that right and left eyes is normal, subgraph and the similarity of this left-eye image it is less than when the similarity of this subgraph and this eye image, then think that the eye image seen in 3D rendering after this target frame image is changed of the eye image that user sees in this target frame image and user is not identical, the left-eye image seen in the eye image that user sees in this target frame image and the user 3D rendering after this target frame image is changed is identical, can determine that the current result of broadcast of this 3D video is that right and left eyes is anti-.
S14, this 3D video is carried out right and left eyes image switching play.
In this step, this 3D video is carried out the switching of right and left eyes image and plays, concrete, when the broadcast format of this 3D video is left-right format, then the left-half of each frame of video in this 3D video and right-hand part is divided and exchange; When the broadcast format of this 3D video is top-down format, then upper part and lower part of each frame of video in this 3D video are exchanged; When the broadcast format of this 3D video is level intertexture form, then the capable part of odd number and the even number line part of each frame of video in this 3D video are exchanged; When the broadcast format of this 3D video be vertically intertexture form time, then odd column part and the even column part of each frame of video in this 3D video are exchanged.
Adopt above-described embodiment, it may be determined that whether right and left eyes is anti-for the current result of broadcast of this 3D video, when the current result of broadcast of this 3D video is right and left eyes inverse time, this 3D video is carried out the switching of right and left eyes image and plays; The result of broadcast of this 3D video is made to be applicable to user, to the vision effect of user's the best.
Being the schematic flow sheet of the 2nd embodiment of 3D video playback inflation method of the present invention with reference to Fig. 2, Fig. 2, the method comprises:
Whether S20, the broadcast format judging this 3D video according to target frame image are left-right format, and this target frame image is the two field picture obtained in the current 3D video play; If the broadcast format of this 3D video is left-right format, then performs step S21, otherwise perform step S31.
The feature of 3D video is divided into left eye signal and right eye signal, this kind of signal is likely a line right eye signal of left eye signal a line, also a likely left eye signal right eye signal, it is also possible in a field signal, upper half part is left eye signal, lower portion is left eye signal, or left side part is left eye signal, and right-hand part part is right eye signal. The broadcast format of certain 3D video just above these, it is also possible to be other form.
In this step, obtaining a two field picture from the current 3D video play, as target frame image, this target frame image comprises left eye signal and right eye signal. This target frame image can be the present frame that this 3D video is showing broadcasting in terminal.
The broadcast format of this 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form. In this step, determine that whether the broadcast format of this 3D video is that the step of left-right format comprises according to this target frame image: this target frame image is carried out cuing open point of left-right format, left side half image is formed left-eye image or eye image, the right half image is formed eye image or left-eye image; Left-eye image and eye image to this separation carry out similarity judgement, if meeting simulated condition, determine that the broadcast format of this 3D video is left-right format.
S21, the half region of rule cut-away view picture from this target frame image of left region according to cut-away view picture, obtain subgraph, then perform step S22.
In this step, from this target frame image, the left side of cut-away view picture, obtains subgraph.
S22, convert this target frame image to 3D rendering, and the broadcast format according to this 3D video isolates left-eye image and eye image from this 3D rendering, then perform step S23.
S23, the similarity calculating this subgraph and this left-eye image; And calculate the similarity of subgraph and this eye image, then perform step S24.
In one embodiment, from this subgraph and left-eye image, extract color feature value respectively, calculate the similarity of this subgraph and this left-eye image according to two color feature value extracted; And from this subgraph and eye image, extract color feature value respectively, the similarity of this subgraph and this eye image is calculated according to two color feature value extracted; This color feature value can color histogram graph representation.
In another embodiment, respectively this subgraph and left-eye image are carried out FFT computing, obtain a FFT operation result and the 2nd FFT operation result, then respectively the real part of a FFT operation result and the 2nd FFT operation result is normalized, and get the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain first and value and the 2nd and value, again by this first and value and the 2nd and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this left-eye image; And, respectively this subgraph and eye image are carried out FFT computing, obtain the 3rd FFT operation result and the 4th FFT operation result, respectively the real part of the 3rd FFT operation result and the 4th FFT operation result is normalized, and get the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain the 3rd and value and the 4th and value; Again by the 3rd and value and the 4th and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this eye image. The value of this N can be arranged as required, common, and this N can be set to 3.
S24, judge whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, if the similarity of this subgraph and this left-eye image is less than the similarity of subgraph and this eye image, then perform step S25.
In this step, judge whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, if the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of the left-eye image that user sees in this target frame image and user is not identical, the eye image seen in the left-eye image that user sees in this target frame image and the user 3D rendering after this target frame image is changed is identical, the current result of broadcast that can determine this 3D video is that right and left eyes is anti-, if the similarity of this subgraph and this left-eye image is more than or equal to the similarity of subgraph and this eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of left-eye image that user sees in this target frame image and user is identical, can determine that the current result of broadcast of this 3D video is that right and left eyes is normal.
S25, the current result of broadcast determining this 3D video are that right and left eyes is anti-, then perform step S26.
S26, this 3D video is carried out right and left eyes image switching play.
Whether S30, the broadcast format judging this 3D video according to this target frame image are top-down format, if the broadcast format of this 3D video is top-down format, then performs step S31, otherwise perform step S40.
In this step, this target frame image is carried out cuing open point of top-down format, top half image is formed left-eye image or eye image, following half image is formed eye image or left-eye image; Left-eye image and eye image to this separation carry out similarity judgement, if meeting simulated condition, determine that the broadcast format of this 3D video is top-down format.
S31, the half region of rule cut-away view picture from this target frame image of upper area according to cut-away view picture, obtain subgraph, then perform step S22.
In this step, from this target frame image, the upper half portion of cut-away view picture, obtains subgraph.
Whether S40, the broadcast format judging this 3D video according to this target frame image are level intertexture forms, if the broadcast format of this 3D video is level intertexture form, then performs step S41, otherwise perform step S50.
In this step, this target frame image is carried out cuing open point of level intertexture form, extract odd number capable composition left-eye image or eye image out, extract even number line out and form eye image or left-eye image; Left-eye image and eye image to this separation carry out similarity judgement, if meeting simulated condition, determine that the broadcast format of this 3D video is level intertexture form.
S41, half region according to the capable rule cut-away view picture from this target frame image of the odd number of cut-away view picture, obtain subgraph, then perform step S22.
In this step, from this target frame image, odd rows of picture is intercepted.
Whether S50, the broadcast format judging this 3D video according to this target frame image are the forms that vertically interweaves, if the broadcast format of this 3D video is the form that vertically interweaves, then perform step S51.
In this step, this target frame image is carried out cuing open point of vertical intertexture form, extracts odd column composition left-eye image or eye image out, extract even column composition eye image or left-eye image out; Left-eye image and eye image to this separation carry out similarity judgement, if meeting simulated condition, determine that the broadcast format of this 3D video is for the form that vertically interweaves.
S51, the half region of rule cut-away view picture from this target frame image of odd column according to cut-away view picture, obtain subgraph, then perform step S22.
In this step, from this target frame image, the odd column of cut-away view picture, obtains subgraph.
With reference to the structural representation that Fig. 3, Fig. 3 are 3D audio/video player system of the present invention, this system comprises:
Form determination module 10, the target frame image for obtaining from 3D video determines the broadcast format of this 3D video; This target frame image is the two field picture obtained in the current 3D video play; ;
Interception module 20, for the broadcast format of 3D video determined according to this, according to the half region of default intercepting rule cut-away view picture from this target frame image, obtains subgraph;
Extraction module 30, for converting this target frame image to 3D rendering, and the broadcast format according to this 3D video determined isolates left-eye image and eye image from this 3D rendering;
Determination module 40, the left-eye image of, subgraph regular for the intercepting preset according to this and separation and eye image, it is determined that whether the current result of broadcast of this 3D video is that right and left eyes is anti-;
Processing module 50, for being right and left eyes inverse time in the current result of broadcast of this 3D video, carries out the switching of right and left eyes image and plays this 3D video.
The feature of 3D video is divided into left eye signal and right eye signal, this kind of signal is likely a line right eye signal of left eye signal a line, also a likely left eye signal right eye signal, it is also possible in a field signal, upper half part is left eye signal, lower portion is left eye signal, or left side part is left eye signal, and right-hand part part is right eye signal. The broadcast format of certain 3D video just above these, it is also possible to be other form.
This form determination module 10 obtains a two field picture from the current 3D video play, and as target frame image, this target frame image comprises left eye signal and right eye signal; The broadcast format of this 3D video is determined according to this target frame image. This target frame image can be the present frame that this 3D video is showing broadcasting in terminal. The broadcast format of this 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
In one embodiment, the broadcast format of this 3D video is carried out a kind of hypothesis currently by this form determination module 10, according to this hypothesis, this target frame image is carried out left-eye image to be separated with eye image, left-eye image and eye image to this separation carries out similarity judgement again, meet the then current hypothesis of simulated condition to set up, otherwise, change and currently assume, re-start separation and judge, until default all broadcast formats all being assumed according to the method for exhaustion. these all broadcast formats preset comprise left-right format, top-down format, level intertexture form, vertically interweave form, when the broadcast format of this 3D video is assumed, assume that order can be any, as, assume that order is followed successively by: left-right format, top-down format, level intertexture form, vertically interweave form, namely the broadcast format first assuming this 3D video is left-right format, when the broadcast format of this 3D video is not left-right format, the broadcast format then continuing this 3D video of hypothesis is top-down format, when the broadcast format of this 3D video is not top-down format, the broadcast format then continuing this 3D video of hypothesis is level intertexture form, when the broadcast format of this 3D video is not level intertexture form, then continue to assume that the broadcast format of this 3D video is for the form that vertically interweaves. according to this hypothesis, this target frame image carries out left-eye image to be separated with eye image and to comprise: when the broadcast format assumed is left-right format, this target frame image is carried out cuing open point of left-right format, left side half image is formed left-eye image or eye image, the right half image is formed eye image or left-eye image, when the broadcast format assumed is top-down format, this target frame image is carried out cuing open point of top-down format, top half image is formed left-eye image or eye image, by following half image composition eye image or left-eye image, when the broadcast format assumed is level intertexture form, this target frame image carrying out cuing open point of level intertexture form, extract odd number capable composition left-eye image or eye image out, extraction even number line forms eye image or left-eye image, when the broadcast format assumed is vertical intertexture form, this target frame image is carried out cuing open point of vertical intertexture form, extracts odd column composition left-eye image or eye image out, extract even column out and form eye image or left-eye image.
The broadcast format of different 3D videos, corresponding intercepting rule is different, the intercepting rule that the broadcast format of each 3D video is corresponding is set, as: when the broadcast format of true 3D video is left-right format, the intercepting rule that this is preset is intercept the left region of target frame image or intercept the right areas of target frame image; When the broadcast format of 3D video is top-down format, the intercepting rule that this is preset is intercept the upper area of target frame image or intercept the lower region of target frame image; When the broadcast format of 3D video is level intertexture form, this preset intercepting rule for intercept target frame image odd number capable or intercept target frame image even number line; When the broadcast format of 3D video be vertically intertexture form time, intercepting rule that this is preset is for intercepting the odd column of target frame image or intercept the even column of target frame image.
In one embodiment, the broadcast format of this 3D video is left-right format, and default intercepting rule is the left region intercepting target frame image, then the left side of this interception module 20 cut-away view picture from this target frame image, obtains subgraph; In another embodiment, the broadcast format of this 3D video is left-right format, and default intercepting rule is the right areas intercepting target frame image, then the right-hand part of this interception module 20 cut-away view picture from this target frame image, obtains subgraph.
This 3D rendering is separated by this extraction module 30 according to the broadcast format of 3D video, to obtain left-eye image and eye image.
This determination module 40 comprises: calculate unit, for calculating the similarity of this subgraph and this left-eye image; And calculate the similarity of this subgraph and this eye image; Determining unit, for the regular and similarity of this subgraph and this left-eye image and the similarity of subgraph and this eye image according to this intercepting, it is determined that whether the current result of broadcast of this 3D video is that right and left eyes is anti-.
In one embodiment, this calculating unit extracts color feature value respectively from this subgraph and left-eye image, calculates the similarity of this subgraph and this left-eye image according to two color feature value extracted; This color feature value can use color histogram graph representation. With reason, this calculating unit extracts color feature value respectively from this subgraph and eye image, calculates the similarity of this subgraph and this eye image according to two color feature value extracted; This color feature value can color histogram graph representation.
In another embodiment, this subgraph and left-eye image are carried out FFT computing (FastFourierTransformation, fast Fourier transform) by this calculating unit respectively, obtain a FFT operation result and the 2nd FFT operation result; Respectively the real part of a FFT operation result and the 2nd FFT operation result is normalized, and gets the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain first and value and the 2nd and value; By this first and value and the 2nd and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this left-eye image. With reason, this subgraph and eye image are carried out FFT computing by this calculating unit respectively, obtain the 3rd FFT operation result and the 4th FFT operation result; Respectively the real part of the 3rd FFT operation result and the 4th FFT operation result is normalized, and gets the coefficient sum of the front N rank low frequency component of normalized result respectively, obtain the 3rd and value and the 4th and value; By the 3rd and value and the 4th and value carry out subtraction computing and take absolute value, this absolute value is the similarity of subgraph and this eye image. The value of this N can be arranged as required, common, and this N can be set to 3.
In one embodiment, this determining unit comprises: the first judgment sub-unit, for when this intercepting rule is for should the broadcast format of 3D video be the left region of left-right format cut-away view picture, to should the broadcast format of 3D video be the upper area of top-down format cut-away view picture, to should the broadcast format of 3D video be the odd number of level intertexture form cut-away view picture capable and to should the broadcast format of 3D video be the odd column of vertically intertexture form cut-away view picture time, judge whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, first determines subelement, for when the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, it is determined that the current result of broadcast of this 3D video is that right and left eyes is anti-. this intercepting rule is for should the broadcast format of 3D video be the left region of left-right format cut-away view picture, to should the broadcast format of 3D video be the upper area of top-down format cut-away view picture, to should the broadcast format of 3D video be the odd number of level intertexture form cut-away view picture capable and to should the broadcast format of 3D video be the odd column of vertically intertexture form cut-away view picture time, this first judgment sub-unit judges whether the similarity of this subgraph and this left-eye image is less than the similarity of this subgraph and this eye image, subgraph and the similarity of this eye image it is more than or equal to when the similarity of this subgraph and this left-eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of left-eye image that user sees in this target frame image and user is identical, namely this first determines that subelement can determine that the current result of broadcast of this 3D video is that right and left eyes is normal, subgraph and the similarity of this eye image it is less than when the similarity of this subgraph and this left-eye image, then think that the left-eye image seen in 3D rendering after this target frame image is changed of the left-eye image that user sees in this target frame image and user is not identical, the eye image seen in the left-eye image that user sees in this target frame image and the user 3D rendering after this target frame image is changed is identical, and namely the 2nd determines that subelement can determine that the current result of broadcast of this 3D video is that right and left eyes is anti-.
In another embodiment, this determining unit comprises: the 2nd judgment sub-unit, for when this intercepting rule is for should the broadcast format of 3D video be the right areas of left-right format cut-away view picture, to should the broadcast format of 3D video be the lower region of top-down format cut-away view picture, to should the broadcast format of 3D video be level intertexture form cut-away view picture even number line and to should the broadcast format of 3D video be the even column of vertically intertexture form cut-away view picture time, judge whether the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, 2nd determines subelement, for when the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, it is determined that the current result of broadcast of this 3D video is that right and left eyes is anti-. this intercepting rule is the right areas of cut-away view picture, the lower region of cut-away view picture, during the even column of the even number line of cut-away view picture or cut-away view picture, 2nd judgment sub-unit judges whether the similarity of this subgraph and this eye image is less than the similarity of this subgraph and this left-eye image, subgraph and the similarity of this left-eye image it is more than or equal to when the similarity of this subgraph and this eye image, then think that the eye image seen in 3D rendering after this target frame image is changed of eye image that user sees in this target frame image and user is identical, namely the 2nd determines that subelement can determine that the current result of broadcast of this 3D video is that right and left eyes is normal, subgraph and the similarity of this left-eye image it is less than when the similarity of this subgraph and this eye image, then think that the eye image seen in 3D rendering after this target frame image is changed of the eye image that user sees in this target frame image and user is not identical, the left-eye image seen in the eye image that user sees in this target frame image and the user 3D rendering after this target frame image is changed is identical, and namely the 2nd determines that subelement can determine that the current result of broadcast of this 3D video is that right and left eyes is anti-.
Current result of broadcast at this 3D video is right and left eyes inverse time, this 3D video is carried out the switching of right and left eyes image and plays by this processing module 50, concrete, when the broadcast format of this 3D video is left-right format, then the left-half of each frame of video in this 3D video and right-hand part is divided and exchange; When the broadcast format of this 3D video is top-down format, then upper part and lower part of each frame of video in this 3D video are exchanged; When the broadcast format of this 3D video is level intertexture form, then the capable part of odd number and the even number line part of each frame of video in this 3D video are exchanged; When the broadcast format of this 3D video be vertically intertexture form time, then odd column part and the even column part of each frame of video in this 3D video are exchanged.
These are only the preferred embodiments of the present invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.
Claims (10)
1. a 3D video playback inflation method, it is characterised in that, the method comprises:
The broadcast format of described 3D video is determined according to the target frame image obtained in 3D video; Described target frame image is the two field picture obtained in the current 3D video play;
Broadcast format according to described 3D video, according to the half region of default intercepting rule cut-away view picture from described target frame image, obtains subgraph;
Convert described target frame image to 3D rendering, and the broadcast format according to described 3D video isolates left-eye image and eye image from described 3D rendering;
The left-eye image of regular, subgraph and separation according to described default intercepting and eye image, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-;
If it is anti-that the current result of broadcast of described 3D video is right and left eyes, then described 3D video is carried out the switching of right and left eyes image and plays.
2. 3D video playback inflation method as claimed in claim 1, it is characterised in that, according to the described left-eye image and the eye image that intercept rule, subgraph and separation, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
Calculate described subgraph and the similarity of described left-eye image; And calculate described subgraph and the similarity of described eye image;
Regular and the similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image according to described intercepting, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-.
3. 3D video playback inflation method as claimed in claim 2, it is characterised in that, the broadcast format of described 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
4. 3D video playback inflation method as claimed in claim 3, it is characterized in that, according to described intercepting rule and the similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
When described intercept the odd column of broadcast format to be the broadcast format of the capable and corresponding described 3D video of odd number of level intertexture form cut-away view picture be vertically intertexture form cut-away view picture that rule for the broadcast format of corresponding described 3D video is the left region of left-right format cut-away view picture, the broadcast format of corresponding described 3D video is the upper area of top-down format cut-away view picture, corresponding described 3D video time, judge whether the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image;
If the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image, then determine that the current result of broadcast of described 3D video is that right and left eyes is anti-.
5. 3D video playback inflation method as claimed in claim 3, it is characterized in that, according to described intercepting rule and the similarity of subgraph and described left-eye image and the similarity of subgraph and described eye image, it is determined that whether the current result of broadcast of described 3D video is that the anti-step of right and left eyes comprises:
When described intercept rule for the broadcast format of corresponding described 3D video is the right areas of left-right format cut-away view picture, the broadcast format of corresponding described 3D video be the lower region of top-down format cut-away view picture, corresponding described 3D video broadcast format be the even column that the even number line of level intertexture form cut-away view picture and the broadcast format of corresponding described 3D video are vertically intertexture form cut-away view picture time, judge whether the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image;
If the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image, then determine that the current result of broadcast of described 3D video is that right and left eyes is anti-.
6. a 3D video playback adjustment System, it is characterised in that, this system comprises:
Form determination module, the target frame image for obtaining from 3D video determines the broadcast format of described 3D video; Described target frame image is the two field picture obtained in the current 3D video play;
Interception module, for the broadcast format according to the described 3D video determined, according to the half region of default intercepting rule cut-away view picture from described target frame image, obtains subgraph;
Extraction module, for converting described target frame image to 3D rendering, and the broadcast format according to described 3D video isolates left-eye image and eye image from described 3D rendering;
Determination module, for the left-eye image according to described default intercepting rule, subgraph and separation and eye image, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-;
Processing module, for being right and left eyes inverse time in the current result of broadcast of described 3D video, carries out the switching of right and left eyes image and plays described 3D video.
7. 3D video playback adjustment System as claimed in claim 6, it is characterised in that, described determination module comprises:
Calculate unit, for calculating described subgraph and the similarity of described left-eye image; And calculate described subgraph and the similarity of described eye image;
Determining unit, for the regular and similarity of described subgraph and described left-eye image and the similarity of described subgraph and described eye image according to described intercepting, it is determined that whether the current result of broadcast of described 3D video is that right and left eyes is anti-.
8. 3D video playback adjustment System as claimed in claim 7, it is characterised in that, the broadcast format of described 3D video comprises left-right format, top-down format, level intertexture form, vertically interweaves form.
9. 3D video playback adjustment System as claimed in claim 8, it is characterised in that, described determining unit comprises:
First judgment sub-unit, for when described intercept the odd column of broadcast format to be the broadcast format of the capable and corresponding described 3D video of odd number of level intertexture form cut-away view picture be vertically intertexture form cut-away view picture that rule for the broadcast format of corresponding described 3D video is the left region of left-right format cut-away view picture, the broadcast format of corresponding described 3D video is the upper area of top-down format cut-away view picture, corresponding described 3D video time, judge whether the similarity of described subgraph and described left-eye image is less than described subgraph and the similarity of described eye image;
First determines subelement, for when the similarity of described subgraph and described left-eye image is less than the similarity of described subgraph and described eye image, it is determined that the current result of broadcast of described 3D video is that right and left eyes is anti-.
10. 3D video playback adjustment System as claimed in claim 8, it is characterised in that, comprise according to determining unit:
2nd judgment sub-unit, for when described intercept rule for the broadcast format of corresponding described 3D video is the right areas of left-right format cut-away view picture, the broadcast format of corresponding described 3D video be the lower region of top-down format cut-away view picture, corresponding described 3D video broadcast format be the even column that the even number line of level intertexture form cut-away view picture and the broadcast format of corresponding described 3D video are vertically intertexture form cut-away view picture time, judge whether the similarity of described subgraph and described eye image is less than described subgraph and the similarity of described left-eye image;
2nd determines subelement, for when the similarity of described subgraph and described eye image is less than the similarity of described subgraph and described left-eye image, it is determined that the current result of broadcast of described 3D video is that right and left eyes is anti-.
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