CN100450170C - Method and device for acquisition of digital video continuous pictures - Google Patents
Method and device for acquisition of digital video continuous pictures Download PDFInfo
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- CN100450170C CN100450170C CNB2005101026137A CN200510102613A CN100450170C CN 100450170 C CN100450170 C CN 100450170C CN B2005101026137 A CNB2005101026137 A CN B2005101026137A CN 200510102613 A CN200510102613 A CN 200510102613A CN 100450170 C CN100450170 C CN 100450170C
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Abstract
This invention relates to digital image continuous method and device, which comprises the following steps: adding one catch digital images multi-image function into digital television or digital record device to display wonderful images into screen for user watching and selecting to provide memory function for images as later watch and display; finally achieving aims of catching and storing best images.
Description
Technical field
The invention relates to a kind of method and device of pick-up image, and particularly relevant for a kind of method and device that the fechtable digital video continuous pictures is provided.
Background technology
Television broadcasting has at present entered the digitized epoch, its program is all made and is transmitted in the mode of digital compression, adopt this digitized technology, the more signal of video signal of high image quality not only can be provided, and can improve traditional tv easily because signal disturbs institute's image distortion that causes or shortcoming such as fuzzy.In addition, more because broadcast program all adopts digitized mode to transmit, receiving terminal is as long as use a storage device just this digital broadcast data can be recorded and preserved, and is very convenient.
Except the mode of above-mentioned rating broadcast TV program, digital audio-video laser disc (Digital VideoDisc, DVD) then provide the another kind of pipeline of viewing and admiring program, the user only need buy a player, can be with the laser disc of rent and sale on the market, play on the television set at home, can reach the audio-visual entertainment effect that broadcast program provides equally.
Yet; when using television program receiving broadcast program or DVD; Shi Changhui watches excellent program fragment; tend to wish and to note by the picture that this is excellent this moment; but because these programs all are continuous video images; even adopt the freeze-frame function of general video equipment; also only can capture single picture at every turn; and because the time point of acquisition picture is wayward; often can't capture the most excellent picture accurately, in addition, general video equipment does not also provide the function of stored picture yet; if, is unfortunate very because these are former thereby excellent picture missed.
Summary of the invention
Purpose of the present invention is exactly that a kind of method of acquisition of digital video continuous pictures is being provided, and by a plurality of pictures continuous in the acquisition of digital video, and these pictures are presented on the display screen for the user watch, and reach the purpose of catching best excellent picture.
A further object of the present invention provides a kind of device of acquisition of digital video continuous pictures, choose for the user by using a plurality of continuous picture in the acquisition unit acquisition of digital video, and with a picture that storage unit stores is selected, and reach the purpose of preserving best excellent picture.
The present invention proposes a kind of method of acquisition of digital video continuous pictures, comprise the following steps: at first, receive a stroke numeral image data continuously, wherein this digital image data comprises a plurality of image frames, then, these image frames of decoding, store a parameter of this digital image data simultaneously, image frame behind the broadcast decoder then, wherein, when receiving an acquisition instruction, according to the parameter of this digital image data, with a predefined time interval, a plurality of acquisition pictures in the acquisition of digital video data should be interval greater than the interval of adjacent two image frames in the digital image data, these acquisition pictures of then decoding, storage retrieval picture simultaneously, last and show decoded acquisition picture.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, one of them chooses picture as one more to comprise these acquisition pictures of selection, and this is chosen picture carry out an editting function.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned editting function comprises that storing this chooses picture.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned editting function comprise set this choose picture be start-up picture, standby picture and menu background picture one of them.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned parameter comprise image frame in the digital image data playback rate (Frame rate), film format, coded system one of them.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, the step that wherein shows decoded acquisition picture comprises in one of them mode of multi-window and single form and showing.
According to the method for the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned digital image data comprise digital broadcast program data and laser disc storage data one of them.
The present invention proposes a kind of device of acquisition of digital video continuous pictures, comprises a receiving element, a decoding unit, a broadcast unit, an acquisition unit and a storage element.Wherein, receiving element is to be used for receiving continuously a stroke numeral image data, wherein this digital image data comprises a plurality of image frames, and decoding unit is in order to decode these image frames, and obtain the parameter of this digital image data, broadcast unit then couples decoding unit so far, in order to the image frame behind the broadcast decoder, in addition, acquisition unit is coupled to above-mentioned receiving element, decoding unit and broadcast unit are in order to when receiving an acquisition instruction, parameter according to the digital image data of previous acquisition, with a predefined time interval, a plurality of acquisition pictures in the acquisition of digital video data, and with these the acquisition pictures be sent to decoding unit decodes, show decoded acquisition picture by broadcast unit, in addition, storage element then is coupled to acquisition unit, the acquisition picture that is captured in order to the storage retrieval unit.
According to the device of the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned receiving element comprises a demodulator (Demodulator), a de-multiplexer (Demultiplexer) and a bit element flow (Bit stream) buffer.Wherein, demodulator is that the digital image data that is used for being received is demodulated into a kind of transport stream (Transport Stream, TS) data format, and de-multiplexer couples demodulator so far, be reduced to raw video data (Video raw data) in order to the digital image data that will have this transmit flow data form, in addition, the bit element flow buffer then is coupled to de-multiplexer, in order to temporary these raw video data, wait for and decoding by decoding unit.
According to the device of the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned receiving element more comprises a tuner (Tuner), in order to adjusting frequency receiving a stroke numeral broadcast data, and this digital broadcast data is sent to demodulator.
According to the device of the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, above-mentioned broadcast unit comprises a sign indicating number frame buffer (Frame buffer) and a display screen.Wherein, sign indicating number frame buffer is to be used for temporary these image frames, and display screen then is stored in these image frames of yard frame buffer in order to demonstration.
According to the device of the described acquisition of digital video continuous pictures of preferred embodiment of the present invention, the function of above-mentioned acquisition unit more comprises these acquisition pictures of selection, and one of them chooses picture as one, and this is chosen picture carry out an editting function.
The present invention is because of adopting the structure of continuous a plurality of pictures in the acquisition of digital video, therefore excellent picture continuous in the digitized video can be presented on and view and admire for the user before the screen and choose, and provide memory function, make these excellent pictures be able to be excavated and preserve, reach the purpose of catching and preserving best excellent picture.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the method flow diagram of the acquisition of digital video continuous pictures that illustrates according to preferred embodiment of the present invention.
Fig. 2 is the device calcspar of the acquisition of digital video continuous pictures that illustrates according to preferred embodiment of the present invention.
Fig. 3 is the thin portion calcspar of receiving element of the device of the acquisition of digital video continuous pictures that illustrates according to preferred embodiment of the present invention.
110: receiving element
120: mnemon
130: decoding unit
140: broadcast unit
150: acquisition unit
S200: receive digital image data
S210: decoding image frame, the parameter of store digital image data simultaneously
S220: playing video picture
S230: judge whether to receive the acquisition instruction
S240: continue the playing video picture
S250: a plurality of acquisition pictures in the acquisition of digital video data
S260: decoding acquisition picture, storage retrieval picture simultaneously
S270: show the acquisition picture
S280: select one and choose picture
S290: this is chosen picture and carry out an editting function
310: tuner
320: demodulator
330: de-multiplexer
340: the bit element flow buffer
Embodiment
Fig. 1 is the method flow diagram of the acquisition of digital video continuous pictures that illustrates according to preferred embodiment of the present invention.Please refer to Fig. 1, the present embodiment utilization captures a plurality of pictures continuous in the digitized video get off, and is presented in the mode of single or multi-window and views and admires for the user on the screen and choose, and offers one of user pipeline easily, catches excellent picture.
Receive a stroke numeral image data (step S200) at first continuously, wherein this digital image data comprises a plurality of image frames, and this digital image data can be digital broadcast program data or the digital audio-video data that wait other storage device to be write down with laser disc (for example DVD or VCD).
Then,, adopt suitable decoding device with this digital audio-video data decompression and be decoded into many static pictures, and in decoding, the parameter of this digital image data is stored (step S210) according to the coded format of these digital audio-video data.Wherein, the parameter of above-mentioned digital image data can be playback rate (Frame rate), film format or the coded system of image frame in this digital image data, does not limit its kind and number.
Just begin to play this decoded image frame (step S220) then, wherein, because these image frames are to adopt fast and the continuation mode demonstration when playing, and the characteristic of utilizing human vision to stop, therefore make us think that it is a picture continuously, if promptly can see a static image with this image frame freeze-frame this moment.
Following steps promptly utilize above-mentioned principle to obtain to capture picture, at first in the playing video picture, begin detecting and judge whether to receive an acquisition instruction (step S230), if also do not receive this acquisition instruction, then continue playing video picture (step S240), yet, if when receiving the acquisition instruction, will be according to the digital image data parameter of precedence record, and pre-set time interval, in this digital image data, look for the picture data of each corresponding particular point in time, thereby obtain a plurality of acquisition pictures (step S250).Wherein, this time interval can be redefined for per 1 second by the user, per 1/2 second or picture of acquisition in per 1/4 second, do not limit its scope, and the user can freely set according to its needs and hobby.
Similarly, these acquisition pictures also will be decoded by suitable decoding device, also be kept in the usefulness (step S260) for user's subsequent access simultaneously.At last, just these decoded acquisition pictures are presented at (step S270) on the screen, wherein, the modes that show these acquisition pictures can adopt to play continuously with single form and (promptly once show one, change one every the set time) or (for example picture is cut into nine blocks with multi-window, each block shows the picture of different time points respectively) mode play in proper order, the picture that is captured is presented in face of the user.
At this moment, the user can choose picture (step S280) by what select a best in the acquisition picture that shows, and this is chosen picture carry out an editting function (step S290).Wherein, this editting function can be that this is chosen in the memory that picture is stored in TV or video equipment, perhaps also can be that this is chosen start-up picture, standby picture or the menu background picture etc. that picture is set at TV or video equipment, not limit its scope.
Fig. 2 is the device calcspar of the acquisition of digital video continuous pictures that illustrates according to preferred embodiment of the present invention.Please refer to Fig. 2, present embodiment is to be used for illustrating a kind of image capture unit with acquisition continuous pictures function, utilization is configured in it in AV devices such as TV or video equipment, and the excellent picture in the dynamic image can be captured, and after screening, preserve, with as the follow-up usefulness of viewing and admiring and showing.
The device of the acquisition of digital video continuous pictures of present embodiment comprises a receiving element 110, storage element 120, decoding unit 130, a broadcast unit 140 and an acquisition unit 150.Wherein, receiving element 110 is to be used for receiving a stroke numeral image data continuously, and includes a plurality of image frames among this digital image data.Wherein, this digital image data can be digital broadcast program data or with digital audio-video data that other storage device was write down such as laser discs.
Then, these then can be sent to decoding unit 130 via acquisition unit 150 by the image frame that receiving element 110 is received, and by the coded format of decoding unit 130 according to the digital audio-video data, adopt suitable decoding process that these image frames are decoded, and in decoding, also obtained the parameter of digital image data.Wherein, this parameter can be playback rate, film format or the coded system etc. of image frame in this digital image data.
Then, broadcast unit 140 can then play back decoded image frame for the user and view and admire, above step promptly is the flow process that general Digital Television is play digital broadcast program, next then introduces the function of the acquisition of digital video continuous pictures of apparatus of the present invention.
When the user sees the broadcast program of one section excellence or DVD program, can utilize the control knob of pressing on the remote controller or on the TV, thereby send an acquisition instruction to acquisition unit 150, this moment, acquisition unit 150 promptly can be according to the parameter of the digital image data of previous acquisition, and user's pre-set time interval, the a plurality of acquisition pictures of acquisition from digital image data, and similarly these acquisition pictures are sent to decoding unit 130 decodings, and are presented on the display screen by transferring to broadcast unit 140.Wherein, the modes that show these acquisition pictures can adopt the mode of playing continuously or playing in proper order with multi-window with single form, and the picture that is captured is presented in face of the user.
In addition, acquisition unit 150 also can capture these picture and be sent to earlier in the storage element 120 and store, and chooses use for follow-up.Wherein, broadcast unit 140 more can include a sign indicating number frame buffer (Frame buffer), in order to temporary these decoded image frames, so that the usefulness of the buffering of the data access of image frame between decoding unit 130 and display screen to be provided.
Certainly, described in last embodiment, acquisition unit 150 more can be carried out an editting function at the picture of choosing that the user selects on display unit 140, this editting function can be that this is chosen in the memory that picture is stored in TV or video equipment, perhaps also can be that this is chosen start-up picture, standby picture or the menu background picture etc. that picture is set at TV or video equipment, not limit its scope.
In addition, in one embodiment, above-mentioned receiving element 110 can include a tuner (Tuner), a demodulator (Demodulator), a de-multiplexer (Demultiplexer) and a bit element flow (Bit stream) buffer, and its serial arrangement illustrates in the thin portion calcspar of the receiving element 110 of Fig. 3.
As shown in Figure 3, at first, adjust frequency to receive by demodulator 310 and transmit and the stroke numeral broadcast data that comes, and then this digital broadcast data is sent to demodulator 320 by the outside.At this moment, demodulator promptly can be demodulated into the digital image data that is received transport stream (Transport Stream, TS) digital image data of data format, and transfer to de-multiplexer 330 digital image data of this transmit flow data form is reduced to raw video data (Video raw data), these raw video data promptly can be used as the data archival that offers decoding unit (not illustrating) decoding.In addition, more use a bit element flow buffer 340 in the present embodiment, utilize this bit element flow buffer 340 is configured between de-multiplexer 330 and the decoding unit (not illustrating), and can be as the usefulness of the buffering of decoding unit access raw video data.
In sum, in the method and device of acquisition of digital video continuous pictures of the present invention, by the function that in Digital Television or digital video equipment, increases a plurality of pictures in the continuous acquisition of digital video, view and admire for the user before the screen and choose and excellent picture continuous in the digitized video can be presented on, and provide memory function, make these excellent pictures be preserved the usefulness of viewing and admiring and showing, finally reach the purpose of catching and preserving best excellent picture as follow-up.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (17)
1, a kind of method of acquisition of digital video continuous pictures is characterized in that it comprises the following steps:
Receive a digital image data continuously, wherein this digital image data comprises a plurality of image frames;
Those image frames of decoding store a parameter of this digital image data simultaneously;
Those image frames behind the broadcast decoder;
When receiving an acquisition instruction, according to this parameter of this digital image data,, capture a plurality of acquisition pictures in this digital image data with a predefined time interval, should be interval greater than the interval of adjacent two image frames in the digital image data;
Decoding, those capture pictures, store those acquisition pictures simultaneously; And
Show decoded those acquisition pictures.
2, the method for acquisition of digital video continuous pictures according to claim 1 is characterized in that it more comprises:
One of them chooses picture as one to select those acquisition pictures; And
This is chosen picture carry out an editting function.
3, the method for acquisition of digital video continuous pictures according to claim 2, this chooses picture to it is characterized in that wherein said editting function comprising storage.
4, the method for acquisition of digital video continuous pictures according to claim 2, it is characterized in that wherein said editting function comprise setting this choose picture be start-up picture, standby picture and menu background picture one of them.
5, the method for acquisition of digital video continuous pictures according to claim 1, it is characterized in that wherein said parameter comprise those image frames in this digital image data playback rate, film format, coded system one of them.
6, the method for acquisition of digital video continuous pictures according to claim 1, the step that it is characterized in that wherein showing decoded those acquisition pictures comprise in one of them mode of multi-window and single form and showing.
7, the method for acquisition of digital video continuous pictures according to claim 1, it is characterized in that wherein said digital image data comprise digital broadcast program data and laser disc storage data one of them.
8, a kind of device of acquisition of digital video continuous pictures is characterized in that it comprises:
One receiving element is suitable for receiving a digital image data continuously, and wherein this digital image data comprises a plurality of image frames;
One decoding unit, those image frames that are suitable for decoding, and obtain one of this digital image data parameter;
One broadcast unit is coupled to this decoding unit, is suitable for those image frames behind the broadcast decoder;
One acquisition unit, be coupled to this receiving element, this decoding unit and this broadcast unit, be suitable for when receiving an acquisition instruction, this parameter according to this digital image data, with a predefined time interval, capture a plurality of acquisition pictures in this digital image data, should be interval greater than the interval of adjacent two image frames in the digital image data, and those acquisition pictures are sent to this decoding unit decodes, look by this broadcast unit and show decoded those acquisition pictures; And
One storage element is coupled to this acquisition unit, is suitable for storing those acquisition pictures that this acquisition unit captures.
9, the device of acquisition of digital video continuous pictures according to claim 8 is characterized in that wherein said receiving element comprises:
One demodulator, this digital image data that is suitable for being received is demodulated into a transmit flow data form;
One de-multiplexer is coupled to this demodulator, is suitable for this digital image data of this transmit flow data form is reduced to raw video data; And
One bit element flow buffer is coupled to this de-multiplexer, is suitable for temporary these raw video data, waits for and being decoded by this decoding unit.
10, the device of acquisition of digital video continuous pictures according to claim 8 is characterized in that wherein said receiving element more comprises:
One tuner is suitable for adjusting frequency receiving a digital broadcast data, and this digital broadcast data is sent to this demodulator.
11, the device of acquisition of digital video continuous pictures according to claim 8 is characterized in that wherein said broadcast unit comprises:
One yard frame buffer is suitable for temporary those image frames; And
One display screen is suitable for showing those image frames that are stored in this yard frame buffer.
12, the device of acquisition of digital video continuous pictures according to claim 8 is characterized in that the function of wherein said acquisition unit more comprises:
One of them chooses picture as one to select those acquisition pictures; And
This is chosen picture carry out an editting function.
13, the device of acquisition of digital video continuous pictures according to claim 12, this chooses picture in this storage element to it is characterized in that wherein said editting function comprising storage.
14, the device of acquisition of digital video continuous pictures according to claim 12, it is characterized in that wherein said editting function comprise setting this choose picture be start-up picture, standby picture and menu background picture one of them.
15, the device of acquisition of digital video continuous pictures according to claim 8, it is characterized in that wherein said parameter comprise those image frames in this digital image data playback rate, film format, coded system one of them.
16, the device of acquisition of digital video continuous pictures according to claim 8, the method that it is characterized in that wherein showing decoded those acquisition pictures comprise in one of them mode of multi-window and single form and showing.
17, the device of acquisition of digital video continuous pictures according to claim 8, it is characterized in that wherein said digital image data comprise digital broadcast program data and laser disc storage data wherein it
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| CNB2005101026137A CN100450170C (en) | 2005-09-06 | 2005-09-06 | Method and device for acquisition of digital video continuous pictures |
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| CNB2005101026137A CN100450170C (en) | 2005-09-06 | 2005-09-06 | Method and device for acquisition of digital video continuous pictures |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003001788A2 (en) * | 2001-06-25 | 2003-01-03 | Redhawk Vision Inc. | Video event capture, storage and processing method and apparatus |
| KR20040024340A (en) * | 2002-09-13 | 2004-03-20 | 주식회사 알티캐스트 | System for producing image album on digital television receiver using moving image capture and method therefor |
| US20040160532A1 (en) * | 2003-02-19 | 2004-08-19 | Sharp Laboratories Of America, Inc. | System and method for television frame capture and display |
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- 2005-09-06 CN CNB2005101026137A patent/CN100450170C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003001788A2 (en) * | 2001-06-25 | 2003-01-03 | Redhawk Vision Inc. | Video event capture, storage and processing method and apparatus |
| KR20040024340A (en) * | 2002-09-13 | 2004-03-20 | 주식회사 알티캐스트 | System for producing image album on digital television receiver using moving image capture and method therefor |
| US20040160532A1 (en) * | 2003-02-19 | 2004-08-19 | Sharp Laboratories Of America, Inc. | System and method for television frame capture and display |
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