CN104394324A - Special-effect video generation method and device - Google Patents
Special-effect video generation method and device Download PDFInfo
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Abstract
The invention discloses a special-effect video generation method which comprises the following steps: before recording a video or in a video recording process, detecting whether a user selects a target image on a display picture of a camera or not; if so, tracking the selected target image from a selection frame, and in the video recording process, writing the frame number of the successfully tracked video frame image and the position region of the target image into a track data file; after the video recording process is finished, packaging a local effect processing mode selected by the user and the track data file to form a special-effect data file, and packaging and fusing a recorded original video and the special-effect data file to generate a special-effect video. Correspondingly, the invention further discloses a special-effect video generator and a special-effect video player; the video can be locally subjected to special-effect processing according to the target image selected by the user in a video shooting process.
Description
Technical field
The present invention relates to MultiMedia Field, particularly relate to a kind of generation method of special efficacy video, special efficacy video generator and special efficacy video player.
Background technology
Universal along with smart mobile phone and mobile Internet, video capture no longer needs professional camera, and anyone can shoot the video conveniently with mobile phone, then uploads on each large social network sites and shares.Video effect of shadow captured by common style of shooting etc. are all not ideal enough, therefore people wish that the video oneself taken can be more personalized, along with the increase of this demand, various APP process software emerges in an endless stream, look as Tengxun is micro-, U.S. bats etc., can increase scene, carry out shadow adjustment etc. for video.But these technology existing, be nearly all carried out by all for whole video pictures unifying process, user operation limited space, can not meet all users ' individualized requirements completely.
Existing Video processing software in addition, directly carries out effect process in former frame of video, cannot again extract former video from the new video generated, other effects to such an extent as to this section of former video cannot be annotated by user again.
Summary of the invention
The object of this invention is to provide a kind of special efficacy video generation method and characteristic video generator, the destination object can confined on video flowing according to user, only carry out special effect processing for video local.
In order to realize foregoing invention object, the invention provides a kind of special efficacy video generation method, comprising:
Before recorded video or in video record process, detect user and whether select target image at camera display frame upper ledge;
If so, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of;
After video record terminates, user-selected partial result processing mode and described track data file are packed and forms special effects data file, and the original video recorded and described special effects data Document encapsulation are merged, generate special efficacy video.
Preferably, described partial result processing mode comprise picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, light and shade regulate in one or more modes.
Preferably, described method also comprises: enhancing data user being put on target image are bundled in special effects data file, described enhancing data comprise interactive elements and or alternative events, and wherein interactive elements comprises one or more in image, audio frequency, webpage, text, 3D model, URI address.
Preferably, the described target image to institute's frame choosing is followed the tracks of, and adopts the one in CamShift algorithm, optical flow tracking and particle filter algorithm.
Preferably, described detection user whether before camera display frame upper ledge selects target image step, also comprise: in camera display frame, carry out multi-object detection, by the one or more objects detected respectively frame elect, carry out target image selection for user.
Accordingly, present invention also offers a kind of special efficacy video generator, comprising:
Video record module, carries out video record for calling camera;
Detection module, for before recorded video or in video record process, detects user and whether selects target image at camera display frame upper ledge;
Tracking module, for detecting that user selects target image at camera display frame upper ledge when detection module, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of;
Data encapsulation module, for user-selected partial result processing mode and the packing of described track data file are formed special effects data file, and merges the original video recorded and described special effects data Document encapsulation, generates special efficacy video; Described data encapsulation module memory contains multiple partial result processing mode, described partial result processing mode comprise picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, light and shade regulate in one or more modes.
Preferably, described data encapsulation module is also for putting on the enhancing data encapsulation of target image in special effects data file by user, described enhancing data comprise interactive elements and or alternative events, and wherein interactive elements comprises one or more in image, audio frequency, webpage, text, 3D model, URI address.
Preferably, described detection module, also for before video record or in video record process, multi-object detection is carried out in camera display frame, by the one or more objects detected respectively frame elect, carry out target image selection for user.
Accordingly, the present invention also provides a kind of special efficacy video player, comprising:
Data resolution module, for resolving special efficacy video data, obtains former video data and special effects data file;
Video decoding module, for decoding to former video data and playing;
Special efficacy processing module, in video display process, reads special effects data file, according to the partial result processing mode that special effects data file is specified, carries out partial result process to target image in each frame.
Preferably, described special efficacy video player also comprises rendering module, or rendering module and alternative events respond module:
Described rendering module, for reading the enhancing data in special effects data file, according to target area positional information, exports corresponding enhancing data in the respective objects zone rendering of associated frame;
Described alternative events respond module, in video display process, monitors and responds the interaction request of user, until video playback is complete.
Compared with prior art, the present invention has following beneficial effect:
The present invention is specially adapted to mobile terminal and carries out short video capture, special effect processing can be carried out for video local, can users ' individualized requirement be met, such as, in shooting process, beat the Local treatment such as mosaic for face very easily, do not need video record is good after carry out post-production frame by frame again.In addition, the special efficacy video generated due to the present invention is merged the original video recorded and described special effects data Document encapsulation, and from special efficacy video, again can extract original video, this section of video can be annotated other effects by user again.
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 embodiment of the present invention special efficacy video generation method;
Fig. 2 is that embodiment of the present invention special efficacy video generation method center selects target image schematic diagram;
Fig. 3 is that in embodiment of the present invention special efficacy video generation method, tracking box selects target image schematic diagram;
Fig. 4 is video partial result process schematic diagram in embodiment of the present invention special efficacy video generation method.
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.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described.
See Fig. 1, be a kind of special efficacy video generation method of embodiment of the present invention schematic flow sheet, comprise the steps:
S101: before recorded video or in video record process, detects user and whether selects target image at camera display frame upper ledge;
S102: if detect that user has selected target image at camera display frame upper ledge in step S101 step, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of; The described target image to institute's frame choosing is followed the tracks of, and adopts the one in CamShift algorithm, optical flow tracking and particle filter algorithm;
S103: after video record terminates, packs user-selected partial result processing mode and described track data file and forms special effects data file, and the original video recorded and described special effects data Document encapsulation is merged, and generates special efficacy video.Described partial result processing mode comprise picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, light and shade regulate in one or more modes.
In the present embodiment, in S102 step, the tracking of target image also comprises giving for change of tracked region, give the matching process (TLD, TRACKING-L EARNING-DETECTION) that can adopt conventional feature matching method (as ORB) or sliding window traversal for change.When following the tracks of loss and cannot giving for change (such as continuous 5 frames are not all given for change, can think that it is followed the tracks of loss and cannot give for change), prompting user again frame selects target; Maybe when following the tracks of loss and cannot giving for change, select target image and subsequent frame to carry out images match user's first time frame, after the match is successful, re-establish tracking.
In the present embodiment, when detecting that user selects target image at camera display frame upper ledge, display box selects frame, and in succeeding target image trace process, lasting display box selects frame.Such as: in step S101, subscriber frame selects the schematic diagram of target image can see Fig. 2, in step S102, target following schematic diagram can see Fig. 3, in step S103, local special effect processing effect can be carry out to target image (eyes) amplifications to process see Fig. 4, Fig. 4 signal.
Preferably, the present embodiment special efficacy video generation method also comprises: enhancing data user being put on target image are bundled in special effects data file, described enhancing data comprise interactive elements and or alternative events, wherein interactive elements can be image, audio frequency, webpage, text, 3D model, URI address etc., as the word tag on Fig. 4 schematic diagram.
In another preferred embodiment, in order to make target image selection more intelligent, described detection user whether before camera display frame upper ledge selects target image step, multi-object detection can be carried out in camera display frame, by the one or more objects detected respectively frame elect, carry out target image selection for user, user can by clicking the frame choosing of realize target image.
The embodiment of the present invention additionally provides a kind of special efficacy video generator, comprises as lower module:
Video record module, carries out video record for calling camera;
Detection module, for before recorded video or in video record process, detects user and whether selects target image at camera display frame upper ledge;
Tracking module, for detecting that user selects target image at camera display frame upper ledge when detection module, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of;
Data encapsulation module, for user-selected partial result processing mode and the packing of described track data file are formed special effects data file, and merges the original video recorded and described special effects data Document encapsulation, generates special efficacy video; Described data encapsulation module memory contains multiple partial result processing mode, described partial result processing mode comprise picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, light and shade regulate in one or more modes.
In another preferred embodiment, in order to make target image selection more intelligent, described detection module, also for before video record or in video record process, multi-object detection is carried out in camera display frame, by the one or more objects detected respectively frame elect, carry out target image selection for user, user can by clicking the frame choosing of realize target image.
The embodiment of the present invention additionally provides a kind of special efficacy video player, comprising:
Data resolution module, for resolving special efficacy video data, obtains former video data and special effects data file;
Video decoding module, for decoding to former video data and playing;
Special efficacy processing module, in video display process, reads special effects data file, according to the partial result processing mode that special effects data file is specified, carries out partial result process to target image in each frame.
In another embodiment, described special efficacy video player also comprises rendering module, and rendering module, for reading the enhancing data in special effects data file, according to target area positional information, exports corresponding enhancing data in the respective objects zone rendering of associated frame.
In another embodiment, described special efficacy video player also both comprised rendering module, also comprised alternative events respond module, alternative events respond module, in video display process, monitored and responded the interaction request of user, until video playback is complete.
The present invention is specially adapted to mobile terminal and carries out short video capture, special effect processing can be carried out for video local, can users ' individualized requirement be met, such as, in shooting process, beat the Local treatment such as mosaic for face very easily, do not need video record is good after carry out post-production frame by frame again.In addition, the special efficacy video generated due to the present invention is merged the original video recorded and described special effects data Document encapsulation, and from special efficacy video, again can extract original video, this section of video can be annotated other effects by user again.
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. a special efficacy video generation method, is characterized in that, comprising:
Before recorded video or in video record process, detect user and whether select target image at camera display frame upper ledge;
If so, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of;
After video record terminates, user-selected partial result processing mode and described track data file are packed and forms special effects data file, and the original video recorded and described special effects data Document encapsulation are merged, generate special efficacy video.
2. special efficacy video generation method as claimed in claim 1, is characterized in that, described partial result processing mode comprises picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, one or more modes in light and shade adjustment.
3. special efficacy video generation method as claimed in claim 2, it is characterized in that, described method also comprises: enhancing data user being put on target image are bundled in special effects data file, described enhancing data comprise interactive elements and or alternative events, and wherein interactive elements comprises one or more in image, audio frequency, webpage, text, 3D model, URI address.
4. special efficacy video generation method as claimed any one in claims 1 to 3, is characterized in that, the described target image to institute's frame choosing is followed the tracks of, and adopts the one in CamShift algorithm, optical flow tracking and particle filter algorithm.
5. whether special efficacy video generation method as claimed in claim 4, is characterized in that, described detection user before camera display frame upper ledge selects target image step, also comprise:
Multi-object detection is carried out in camera display frame, by the one or more objects detected respectively frame elect, carry out target image selection for user.
6. a special efficacy video generator, is characterized in that, comprising:
Video record module, carries out video record for calling camera;
Detection module, for before recorded video or in video record process, detects user and whether selects target image at camera display frame upper ledge;
Tracking module, for detecting that user selects target image at camera display frame upper ledge when detection module, then from frame selects frame, the target image of institute's frame choosing is followed the tracks of, and in video record process, will frame number, the target image band of position write track data file of successful video frame images be followed the tracks of;
Data encapsulation module, for user-selected partial result processing mode and the packing of described track data file are formed special effects data file, and merges the original video recorded and described special effects data Document encapsulation, generates special efficacy video; Described data encapsulation module memory contains multiple partial result processing mode, described partial result processing mode comprise picture distortion, mosaic processing, amplification, superposition picture, color is played up, colourity regulates, light and shade regulate in one or more modes.
7. special efficacy video generator as claimed in claim 6, it is characterized in that, described data encapsulation module is also for putting on the enhancing data encapsulation of target image in special effects data file by user, described enhancing data comprise interactive elements and or alternative events, and wherein interactive elements comprises one or more in image, audio frequency, webpage, text, 3D model, URI address.
8. special efficacy video generator as claimed in claims 6 or 7, it is characterized in that, described detection module, also for before video record or in video record process, multi-object detection is carried out in camera display frame, by the one or more objects detected respectively frame elect, carry out target image selection for user.
9. a special efficacy video player, is characterized in that, comprising:
Data resolution module, for resolving special efficacy video data, obtains former video data and special effects data file;
Video decoding module, for decoding to former video data and playing;
Special efficacy processing module, in video display process, reads special effects data file, according to the partial result processing mode that special effects data file is specified, carries out partial result process to target image in each frame.
10. special efficacy video player as claimed in claim 9, it is characterized in that, described special efficacy video player also comprises rendering module, or rendering module and alternative events respond module:
Rendering module, for reading the enhancing data in special effects data file, according to target area positional information, exports corresponding enhancing data in the respective objects zone rendering of associated frame;
Alternative events respond module, in video display process, monitors and responds the interaction request of user, until video playback is complete.
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