CN102307286A - Method and system for processing multiple frames of television - Google Patents
Method and system for processing multiple frames of television Download PDFInfo
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- CN102307286A CN102307286A CN201110074062A CN201110074062A CN102307286A CN 102307286 A CN102307286 A CN 102307286A CN 201110074062 A CN201110074062 A CN 201110074062A CN 201110074062 A CN201110074062 A CN 201110074062A CN 102307286 A CN102307286 A CN 102307286A
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Abstract
The invention relates to a method for processing multiple frames of a television. The method comprises the following steps of: decoding data of a current selected channel in a television signal so as to generate a program frame; determining a channel to be selected which is displayed on a television screen; decoding data of the determined channel to be selected so as to generate a program frame; displaying the program frames of the current selected channel and the channel to be selected through playing windows with different attributes respectively. The invention also relates to a system for processing multiple frames of the television; therefore, when a user previews television programs, an originally current selected and watched video program is still in a played state and the user can watch the originally current selected and watched video program.
Description
Technical field
The present invention relates to the processing method and the treatment system of the many pictures of a kind of TV.
Background technology
Digital television majority in the market has the picture preview function, makes things convenient for the user to search oneself to like the television channel of watching.
Below the preview function of digital television is introduced:
After starting the picture preview function; Digital television received television program information in decoding and image processing process, decodes digital television programs information; Comprise Word messages such as program inventory under channel, each channel, reproduction time, and play successively.The advantage of the method is the information that can check program that other channels are broadcast when watching selected program.Shortcoming is not directly perceived, and the user can't see the picture of other channels, can only obtain TV program information from Word message, and because number of channels is too much, spectators are difficult to find fast the own programme information of liking channel.
Even some existing Digital Television has adopted multichannel picture processing capacity; But when the user starts this multichannel picture function; Also can begin, decode successively and handle the video frequency program of each channel, and adopt the mode of many pictures to show on TV from first channel.This mode causes the user to be interrupted starting the video frequency program of being watched before this preview function, hinder the user to this video frequency program continue watch.
Summary of the invention
In view of this, main purpose of the present invention is to provide the processing method and the treatment system of the many pictures of a kind of TV, and to realize the user when the preview TV programme, the former current selected video frequency program of watching still is in by broadcast state, still can be watched.
The processing method of the many pictures of a kind of TV at first is provided, comprises step:
A, the data decode of the current selected channel in the TV signal handled generate the program picture; Also comprise step:
B, determine the channel to be selected that will be presented on the video screen;
C, the data of the channel to be selected determined are carried out decoding processing generate the program picture;
D, show the program picture of said current selected channel and channel to be selected respectively through broadcast window respectively with different attribute.
By last, through showing selected channel picture, channel picture to be selected, realize the user when the preview TV programme, its current selected video frequency program of watching still can be watched.
Preferably, said step B comprises:
Read the channel collecting folder;
Confirm the collection classification at current selected channel place, and as current selected classification, the collection classification of setting quantity before and after this classification is as classification to be selected;
Read out each channel except that current selected channel under current selected, the to be selected classification menu as channel to be selected.
By last, realization is confirmed current selected collection classification, collection classification to be selected, and then is realized treating confirming of frequency-selecting road.
Preferably, said step D also comprises: through broadcast window function menu and/or the program guide picture with particular community.
It is one of at least following that the attribute of said broadcast window comprises: position, size, shape, transparency, figure level are other.
By last,, realize the demonstration of broadcast window menu through to the confirming of affiliated broadcast window menu properties.
Preferably, step D comprises:
It is that setting is leaned at the middle part that the position attribution of current selected channel broadcast window makes this window's position;
Other each cannel broadcast position of window attribute to be selected under the current selected classification vertically arranges each cannel broadcast window to be selected with the other attribute of figure level successively below current selected channel broadcast window, and is partly covered setting by top window successively;
Under each classification to be selected each cannel broadcast position of window attribute to be selected makes each cannel broadcast window to be selected transversely in current selected classification arranged on both sides with the other attribute of figure level; Vertically go up under each classification to be selected and vertically arrange successively, and partly covered setting by top window successively;
The shape attribute of each broadcast window makes each window be the upwards shape of the 3D vision effect of certain angle rotation formation.
By last,, realize the different display effects of each cannel broadcast window through confirming of each cannel broadcast window attribute.
Preferably, step D also comprises:
Receive on the channel/during following switching command, each collect in the classification channel conversion in each broadcast window on it/the below broadcast window, and return steps A;
Receive that each collected the channel conversion in each broadcast window to its left side/right-hand broadcast window in the classification, and returns steps A when instruction was changed in a channel left side/right cut.
By last, receive user instruction, make each broadcast window realize the variation of position.
Preferably, said step C comprises:
The decoding processing mode that employing is lower than the program image quality of current selected channel is treated the data in frequency-selecting road and is carried out decoding processing.
By last, realize reducing processor load.
Preferably, said decoding processing mode comprises:
Confirm the distance of cannel broadcast window to be selected to current selected channel broadcast window;
Carry out the decoding processing of different pictures quality according to the difference of said distance.
By last, according to the difference of cannel broadcast the window's position to be selected, realize the difference of image quality, further reduce processor load and can increase processing speed each channel image.
One of below preferably, the mode of said decoding processing comprises at least:
Reduction is to frequency, reduction resolution, minimizing number of pixels, reduction quality of colour and the deletion picture of channel data real-time decoding.
Preferably, the treatment system of the many pictures of a kind of TV is provided also, comprises:
TV signal processing module 10 is used for the current selected channel decoding processing of TV signal is generated the program picture;
Channel image processing module 40 to be selected is used for the data of the channel to be selected determined are decoded and image processing, generates displayable program picture;
By last, realize the user when the preview TV programme, the former current selected video frequency program of watching still is in by broadcast state, still can be watched.
Description of drawings
Fig. 1 is the process flow figure of the many pictures of TV provided by the invention;
Fig. 2 (a) is menu and channel effect structure to be selected for the display structure sketch map of TV multi-image handling method of the present invention, (b) is all channel effect structures to be selected, (c) is the three-dimensional structure effect of menu and channel to be selected;
Fig. 3 is the systematic schematic diagram of realization TV multi-image handling method provided by the invention.
Embodiment
To Fig. 3, is example with the preview function of transferring the Digital Television collection referring to Fig. 1, introduces the processing method and the treatment system of the many pictures of TV provided by the invention in detail in conjunction with accompanying drawing.
As shown in Figure 1; When in the digital television program playing process; After the user accessed the preview function of the corresponding collection of the present invention through remote controller, touch-screen, action induction or portable wireless terminal control appliances such as (PAD), the processing method of many pictures provided by the present invention may further comprise the steps:
Step 110: the continuation receiving digital television signal is also handled, and comprises current selected channel is decoded and image processing, generates the current program picture of playing.
Step 120: transfer function corresponding menu information in the Digital Television, promptly call collection preview function menu in this example.
In the example shown in Fig. 2 (a), this menu comprises:
Be positioned at the Title area menu directly over the screen, be used to show the title of said preview function.
Be positioned at the transversely arranged collection classification menu in below of said Title area menu, be used to show the item name of collection channel, comprise economy, variety, physical culture, science and education, juvenile etc.The function of channel classification collection is provided, can makes things convenient for the user under different collection classification menus, to select such television channel of being collected.
Be positioned at the function choosing-item menu of below of screen; Comprise that locking (promptly realizes collection function; Can be when watching certain television channel; Transfer out channel categories collection menu; Current channel is stowed under the above-mentioned a certain corresponding collection classification menu directory, so that easy-to-look-up when watching this channel next time), deletion (current channel is deleted under correspondence collection classification menu directory) function.
Step 130: the particular content according to the channel collecting of previous setting folder is determined the channel to be selected that will be presented on the video screen.Concrete steps comprise:
At first, judge the collection classification at current selected channel (being the corresponding channel of the current picture of playing described in the step 110) place, should collect classification as current selected classification; As classification to be selected, the quantity in the present embodiment is chosen as 1 with the collection classification (corresponding class ID successively decreases and increases progressively the n bit digital) of some before and after this collection classification; The collection classification that other do not show is as hiding classification.
Then, read out each channel except that current selected channel under current selected, the to be selected classification menu successively, as channel to be selected.
In the example shown in Fig. 2 (b), shown in the center, the top is current selected channel, and the collection classification at its place is current selected classification, about be two row, be classification to be selected.Other channels under the current selected classification and each channel under the classification to be selected are channel to be selected.Other are not presented at the hiding classification of classifying as on the digital TV screen, like the outer left and right sides Ge Lie of Fig. 2 (b) screen.
Step 140: the data to the channel to be selected determined are decoded and image processing, generate displayable program picture.
Wherein, Shown in Fig. 2 (c); Because the program picture of channel to be selected is less than the program picture of current selected channel; Therefore in order to improve data processing speed; When the data that this step is treated the frequency-selecting road are decoded with image processing; Adopted decoding different and image processing mode, will describe at the back literary composition with current selected channel.
Step 150: by being used to play the current selected channel broadcast window of said current selected channel, the cannel broadcast window to be selected of each channel program picture to be selected; According to its preset window attribute, show the program picture of the program picture of above-mentioned current selected channel, channel to be selected respectively; By the menu broadcast window that is used to play said menu, play above-mentioned menu screen according to its preset window attribute.Wherein above-mentioned each window attribute comprises that window size, position, shape, figure level are not and transparency etc.Wherein scheme level and be not used to represent whether window is covered in the rank of certain window top, and what rank was big is positioned on the little window of rank, whole promptly appearing blocks or window that cover grade is little.
Shown in Fig. 2 (a), Fig. 2 (c), each window attribute of present embodiment is following respectively to be provided with:
Current selected channel broadcast window is used for the program picture of current selected channel is carried out big picture demonstration, and it is that the middle part is leaned on that the setting of its position attribution makes this window, and size can be provided with as required; Other cannel broadcast windows to be selected through under the current selected classification of being arranged so that of position attribution are arranged in order below current selected channel broadcast window; And presenting the mode that is covered by top window successively through other setting of figure level is provided with; Classification to be selected is positioned at current selected classification bilateral symmetry arranges, and cannel broadcast window to be selected of each under it presents the mode that is covered by top window successively and is provided with.And the make progress rotation of certain angle of each window forms the shape of 3D vision effect.Describe with an embodiment below:
(X Y) arranges said all cannel broadcast the window's positions by reference axis.
For the ease of the description of back, with current selected channel broadcast window setting coordinate be (X, Y), then, its below cannel broadcast window coordinates to be selected be followed successively by (X+1, Y), (X+2, Y), by that analogy; Its left side cannel broadcast window coordinates to be selected be (X, Y-1); Its right side cannel broadcast window coordinates to be selected be (X, Y+1).The size of said cannel broadcast window to be selected is changed to the position successively: the position more away from middle, lean on time more, its window is more little.
Wherein, The process that each cannel broadcast window shows uses certain display mode to show; The user through remote controller, touch-screen, action induction or portable wireless terminal control appliances such as (PAD) carry out on the channel/when switching down; In all cannel broadcast window coordinates; The pairing numeral of X-axis is carried out " 1 ", "+1 " computing respectively, and integral body demonstrates the effect that all pictures upwards/down move a window.Accordingly; When a users with channel left side/right cut is changed; In all cannel broadcast window coordinates; The pairing numeral of Y-axis is all carried out " 1 ", "+1 " computing; Make channel program broadcasting pictures to be selected get into different windows; Accomplishing the variation of its position, integral body demonstrate all pictures left/effect of the window that moves to right.
Said collection classification menu is only along with a corresponding cannel broadcast window left side/move right, not with on it/move down.
Wherein,, in the process that program shows, can adopt and use certain visual effect changing method to show like Fig. 2 (c).For example; Can below the selected channel broadcast window, increase transparent effect; Current selected blue effect in collection classification menu display window, function choosing-item menu to be dynamically moving rollover effect, and said cannel broadcast window arranged appear with 3-D effect.Wherein the concrete mode that appears of 3-D effect is: on the two-dimensional space basis, add third dimension degree Z axle, promptly X-axis is first dimension of cross, and Y-axis is second dimension of cross, and the Z axle is a third dimension degree.In the three dimensional space coordinate, be rotary middle spindle with the first dimension X-axis, carry out 15 ° forward or backwards～75 ° rotations, show more channel program broadcasting pictures window with more intuitive mode, this three-dimensional arrangement and rotate effect can adopt the OpenGL technology to realize.For another example, when not using " locking, the collection " function of looking out like below among Fig. 2 (a), the acquiescence display effect is transparent, changes to display effect when transferring this function.
The decoding and the image processing mode of the data of mentioning in the face of above-mentioned steps 140 of treating the frequency-selecting road are described down:
Because these picture dimensions are less; And because the highest picture (program of being play for current selected channel broadcast window that attention rate is the highest) of non-user's attention rate; Therefore; In each channel window to be selected; Can only play the tableaux of each channel to be selected, that is, treat the frequency-selecting road and decode when the image processing; Only decode a two field picture and get final product, and needn't continue decoding.And this two field picture also can be non-real-time decoding, like timing decode on the backstage, or channel sectional drawing that is read when deriving from last channel browsing or the channel sectional drawing of last frame when collecting this channel.
And, in the process that these decoded pictures are handled, can adopt reduce resolution, reduce number of pixels, reduce quality of colour, deletion picture modes such as (like the subregional picture of intercepting central part only) handles.
In addition; If said image is a real-time decoding; Because the attention rate of human eye reduces from the center to both sides usually successively; Therefore in processing procedure to picture; Also can carry out degree that pixel what, the quality of colour of different resolution, minimizing reduce etc. successively handles; Formation is the image different processing of picture quality successively to both sides from the center, can further increase image processing speed, and the vision that does not influence the user is as much as possible watched.Appear, the picture that then embodies cannel broadcast window to be selected is by the center effect that video quality reduces successively to both sides.Perhaps, when adopting above-mentioned timing decode, from the center to both sides, the code frequency of separating of employing reduces successively, demonstrates generally from the center to both sides, and the picture refreshing frequency in the cannel broadcast window to be selected is more and more lower.
In addition, the human eye attention rate also can reduce successively from top to bottom, therefore, in the vertical, is suitable for above-mentioned image processing method equally, thereby can be more away from current selected channel broadcast window, and picture quality is low more.
In addition; If adopted dynamic image; Promptly the channel of the superiors of classification to be selected is also play corresponding video; Like two cannel broadcast windows to be selected about current selected channel broadcast window is dynamic image; Then to these two cannel broadcast windows to be selected to carry out Video processing the time; Also can adopt aforesaid way to handle; Promptly; According to different resolution; The pixel that reduces how much; The degree that quality of colour reduces etc. is handled; Formation is the video image different processing of picture quality successively to both sides from the center; Thereby exceeding under the prerequisite that increases processor load, making the user receive more dynamic menus.
For example above-mentioned image processing method is described below:
The first step: confirm the current selected channel broadcast window of distance other each cannel broadcast window to be selected apart from dn, wherein dn is d1, d2～dn, corresponds to the distance value of n cannel broadcast window to be selected to current selected channel broadcast window respectively.Wherein can confirm according to the centre coordinate property calculation of each window.
Second step:, confirm that other each broadcast window to be selected and current selected channel broadcast window quality differ grade point according to said distance.Be 1 with current selected channel broadcast window credit rating for example, other broadcasting pictures credit rating values of wanting are (1-k%*dn), wherein the mass change value of k for setting.According to this formula, the current selected channel broadcast window of distance center is far away more, the broadcasting pictures quality of wanting low more.
The 3rd step: according to the image quality grade point that will play of institute that calculates, when carrying out image processing, selection is carried out image processing to image processing parameter that should the credit rating value.Be understood that, also can realize carrying out result's difference of image processing with this grade point as a weighting parameters in the image processing according to grade point.
In addition; It is variable can also further setting above-mentioned k value; Be designated as km; Like km for increasing progressively (can be linear function or curvilinear function) successively to next line (m is capable) from first trip; Calculate like this the broadcasting pictures credit rating value of wanting for (1-km%*dn); Be characterized in; The variation of image quality is compared horizontal variation for changing longitudinally; Can reduce quality faster and (consider horizontal ordinate according to the dn distance; Kn further considers ordinate here; It is fast to make the result calculated ordinate change), this is because the horizontal attention rate of human eye will be promised attention rate longitudinally.
Another kind of execution mode is, above-mentioned (1-k%*dn) linear formula is changed to curvilinear function, and like (1-k%*dn*dn), promptly the current selected channel broadcast window of distance is far away more, and it is fast more that quality descends, rather than the quality that linear formula embodies on average descends.This is not owing to eyes are linear attenuations to acentric concern, and such function more meets vision, has more reduced the image processing load yet, accelerates image processing speed.
Need to prove, when each broadcast window to be selected position in other positions (not only position shown in 2), or non-when regularly arranged, said method all is suitable for, and realizes that the current selected channel broadcast window of distance is far away more, the broadcasting pictures quality of wanting low more.
In addition, above-mentioned algorithm can also be the control to the decode rate of corresponding channel, and current selected channel broadcast window is far away more, and decode rate is low more, and promptly frame updating is slow more.
As shown in Figure 3, the treatment system of the many pictures of TV of the present invention comprises: TV signal processing module 10, menu determination module 20, channel determination module 30 to be selected, channel image processing module 40 to be selected and picture display module 50.Wherein:
TV signal processing module 10 is used for receiving digital television signal and handles, and comprises current selected channel decoding and image processing, generate current selected channel the program picture that will play, decode the program guide data in the digital television signal simultaneously.
Channel image processing module 40 to be selected is used for the data of the channel to be selected determined are decoded and image processing, generates displayable program picture.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the processing method of the many pictures of TV comprises step:
A, the data decode of the current selected channel in the TV signal handled generate the program picture;
It is characterized in that, also comprise step:
B, determine the channel to be selected that will be presented on the video screen;
C, the data of the channel to be selected determined are carried out decoding processing generate the program picture;
D, show the program picture of said current selected channel and channel to be selected respectively through broadcast window respectively with different attribute.
2. method according to claim 1 is characterized in that, said step B comprises:
Read the channel collecting folder;
Confirm the collection classification at current selected channel place, and as current selected classification, the collection classification of setting quantity before and after this classification is as classification to be selected;
Read out each channel except that current selected channel under current selected, the to be selected classification menu as channel to be selected.
3. method according to claim 1 is characterized in that, said step D also comprises: through menu broadcast window function menu and/or the program guide picture with particular community.
4. according to claim 1 or 3 described methods, it is characterized in that it is one of at least following that the attribute of said broadcast window comprises: position, size, shape, transparency, figure level are other.
5. method according to claim 4 is characterized in that step D comprises:
It is that setting is leaned at the middle part that the position attribution of current selected channel broadcast window makes this window's position;
Other each cannel broadcast position of window attribute to be selected under the current selected classification vertically arranges each cannel broadcast window to be selected with the other attribute of figure level successively below current selected channel broadcast window, and is partly covered setting by top window successively;
Under each classification to be selected each cannel broadcast position of window attribute to be selected makes each cannel broadcast window to be selected transversely in current selected classification arranged on both sides with the other attribute of figure level; Vertically go up under each classification to be selected and vertically arrange successively, and partly covered setting by top window successively;
The shape attribute of each cannel broadcast window makes each window be the upwards shape of the 3D vision effect of certain angle rotation formation.
6. method according to claim 5 is characterized in that step D also comprises:
Receive on the channel/during following switching command, each collect in the classification channel conversion in each broadcast window on it/the below broadcast window, and return steps A;
Receive that each collected the channel conversion in each broadcast window to its left side/right-hand broadcast window in the classification, and returns steps A when instruction was changed in a channel left side/right cut.
7. method according to claim 1 is characterized in that, said step C comprises:
The decoding processing mode that employing is lower than the program image quality of current selected channel is treated the data in frequency-selecting road and is carried out decoding processing.
8. method according to claim 7 is characterized in that, said decoding processing mode comprises:
Confirm the distance of cannel broadcast window to be selected to current selected channel broadcast window;
Carry out the decoding processing of different pictures quality according to the difference of said distance.
One of 9. according to claim 7 or 8 described methods, it is characterized in that, below the mode of said decoding processing comprises at least:
Reduction is to frequency, reduction resolution, minimizing number of pixels, reduction quality of colour and the deletion picture of channel data real-time decoding.
10. the treatment system of the many pictures of TV is characterized in that, comprising:
TV signal processing module (10) is used for the current selected channel decoding processing of TV signal is generated the program picture;
Menu determination module (20) is used to call and shows collection preview function menu information;
Channel determination module to be selected (30) is used to determine the channel to be selected that will be presented on the video screen;
Channel image processing module to be selected (40) is used for the data of the channel to be selected determined are decoded and image processing, generates displayable program picture;
Picture display module (50) is used for showing respectively through the broadcast window with different attribute respectively the program picture of said current selected channel and channel to be selected.
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| CN111954057A (en) * | 2013-12-06 | 2020-11-17 | 公共电视公司 | User interface techniques for television channel change |
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