CN101626522B

CN101626522B - Method for realizing proper screen display of multi-media playing

Info

Publication number: CN101626522B
Application number: CN2009100890106A
Authority: CN
Inventors: 黎先龙
Original assignee: Beijing Zhongke Tonghe Information Technology Co Ltd
Current assignee: Beijing Zhongke Tonghe Information Technology Co Ltd
Priority date: 2009-07-20
Filing date: 2009-07-20
Publication date: 2010-11-03
Anticipated expiration: 2029-07-20
Also published as: CN101626522A

Abstract

The invention relates to a method for realizing the proper screen display of multi-media playing, in particular to a computer program solving the problem that partial information is shielded by rims of a television during playing the multi-media or edges of the television generate a gap (or a black edge). Users utilizes a visible edge detection function to switch focal points among four edges of the television and adjust the point number of focal point edges, a corresponding graphical area on a screen is changed with the adjustment of the point number, a cirtical value is found by quantitative progressive increase (decrease), and the four edge adjustment can be confirmed when being satisfied; all playing output windows invoke a mapping method, the mapping method carries out mapping computation according to interrelated coordinate parameters of the output windows and visible edge detection results so as to obtain the interrelated coordinate parameters of mapping target windows and then computes the interrelated coordinate parameters of output objects of the output windows in the mapping target windows, and after the output windows are completely computed one by one, a mapping result is output. The invention enables the users to flexibly select televisions, reduces the operation maintenance range of program developers; in addition, the display effect can better accord with watching habits of people.

Description

Realize the method that the suitable screen of multimedia shows

Affiliated technical field

The present invention relates to a kind of computer program, the computer program of space (or black surround) problem appearred in the TV edge when partial information was by covering of the frame of TV or multimedia when particularly solving multimedia.

Background technology

At present, Public Service Field is utilized multimedia play system to improve service quality, promote efficiency of service, is provided human nature service progressively to popularize.The hospital guide system of hospital for example, the television reminding patient of different places or family members accept corresponding disposal to certain position, wait information etc.Yet, because the self reason of TV, partial information is hidden by the frame of TV when causing multimedia, if when the establishment multimedia messages, directly dwindle indication range, because of the actual covering scope difference of different TVs, the practical operation difficulty is big, has also improved the multimedia play system operation and maintenance cost simultaneously; If excessively dwindle indication range, then space (or black surround) appears in the TV edge, sees that with masses' custom the watching habit of full frame (all over the screen) is not inconsistent, and has influenced spectator's psychological comfort level, has reduced the result of use of multimedia play system; If fixedly select a certain TV for use, then limited the adaptability of multimedia play system, limited user's right to choose.

Summary of the invention

The objective of the invention is to provide a kind of computer program, find that the user information that TV shows hides or the edge voids problem, use visible edge detection function provided by the invention, can adjust indication range easily voluntarily, after the user adjusted and reaches satisfied affirmation, the present invention preserved concrete adjusting range automatically; During play multimedia information, by calling output mapping function provided by the invention,, accomplish that after calculating suitable screen shows through mapping according to the concrete adjusting range of preserving, solved partial information and hidden problem, solved the TV edge and space (or black surround) occurred by the frame of TV.Adopt user of the present invention to select TV flexibly, reduced the operation maintenance scope of program developer, display effect meets popular watching habit more.

For realizing purpose of the present invention, computer program provided by the invention comprises two big functions: visible edge detection function and output mapping function.Visible edge detection function is generally used when first the use, can be preserved by program after once setting, and the output mapping function can be called at any time; The output mapping function is shone upon calculating in real time according to the information of playing, and the information after calculating is outputed to TV.

Description of drawings

Fig. 1 is the visible edge detection function flow chart;

Fig. 2 is an output mapping function flow chart;

Fig. 3 is a striograph before the edge is adjusted;

Fig. 4 is a striograph after the edge adjustment;

Fig. 5 is to use the preceding striograph of the present invention;

Fig. 6 is to use striograph behind the present invention.

Embodiment

The enforcement of visible edge detection function is described with reference to Fig. 1.When the user find that information that TV shows hides or the edge voids problem after, its description to problem can only be a qualitative description, can't be quantitatively described, promptly can't illustrate what to have hidden, the size in space, visible edge detection function provided by the invention helps the user by find the critical value that covering or space occur with quantitative increasing progressively (subtracting).Specific implementation process is: increase " visible edge detection " function in the menu of information release terminal, the user uses a teleswitch or the keyboard adjustment, on, following key is realized the top, following, the left side, focus is switched between the right, a left side, right button increases or reduces counting of focus limit, can show on the screen and be capped counting and visual diagram of part, increase progressively (subtracting) with what adjustment was counted, respective regions changes (promptly transfer promptly and show) thereupon on the screen, when the user think four limit adjustment reach satisfied promptly find out critical value after, can confirm to preserve, be 0 if certain limit adjustment is established adjusted value.Fig. 3 is a striograph before the edge is adjusted, and Fig. 4 is a striograph after the edge adjustment, by comparison diagram 3 and Fig. 4, can find out and promptly transfer the effect that promptly shows that the white portion that occurs among Fig. 4 is for adjusting effect all around.For embodying effect, four limit adjustment exaggerate purposely among Fig. 4.

The enforcement of output mapping function is described with reference to Fig. 2.In application program, all output windows (piece, zone) all must call mapping method, read the visible edge testing result simultaneously and shine upon calculating.Output window (piece, zone) mapping computational algorithm is as follows: establishing original design resolution is Wa*Ha (as 1920*1080); If it is that Xa, the right are that Xb, top are Ya, the following Yb (Wa of following appearance, Ha, Xa, Xb, Ya, Yb are same definition) of being that left hand edge is adjusted numerical value; If certain window in the original design (piece, zone) be described as (x, y, w, h), (x, y) be window top left corner apex coordinate, (w is wide and high h), or be described as any two diagonal angle apex coordinates of window (piece, zone) (x1, y1, x2, y2); If mapping target window (piece, zone) correspondence be described as (X, Y, W, H) or (X1, Y1, X2, Y2).The mapping computational algorithm is: X=Xa+x*[(Wa-Xa-Xb)/and Wa]; Y=Ya+y*[(Ha-Ya-Yb)/Ha]; W=w*[(Wa-Xa-Xb)/Wa]; H=h*[(Ha-Ya-Yb)/Ha]; X1=Xa+x1*[(Wa-Xa-Xb)/Wa]; Y1=Ya+y1*[(Ha-Ya-Yb)/Ha]; X2=Xa+x2*[(Wa-Xa-Xb)/Wa]; Y2=Ya+y2*[(Ha-Ya-Yb)/Ha].Voluntarily the result is rounded in the computational process.

The mapping of the object output in the output window (piece, zone) is calculated and calculated by following algorithm: establishing the position of object output in window (piece, zone) in the window (piece, zone) and be with the window upper left corner is reference; If the coordinate of this window (piece, zone) upper left corner in window (piece, zone) is (0,0); If the apex coordinate of the object output in the window (piece, zone) is a benchmark with window (piece, zone) interior upper left corner coordinate (0,0); If object output is described as (x, y, w in window (piece, zone), h), (x y) is object output top left corner apex coordinate, (w, h) be wide and high, or be described as any two diagonal angle apex coordinate (x1, the y1 of object output, x2, y2), mapping is calculated the back correspondence and is described as (X, Y, W, H) or (X1, Y1, X2, Y2).Algorithm is as follows: X=x*[(Wa-Xa-Xb)/and Wa]; Y=y*[(Ha-Ya-Yb)/Ha]; W=w*[(Wa-Xa-Xb)/Wa]; H=h*[(Ha-Ya-Yb)/Ha]; X1=x1*[(Wa-Xa-Xb)/Wa]; Y1=y1*[(Ha-Ya-Yb)/Ha]; X2=x2*[(Wa-Xa-Xb)/Wa]; Y2=y2*[(Ha-Ya-Yb)/Ha].Voluntarily the result is rounded in the computational process.

Calculate the mapping result of output window (piece, zone) earlier, calculate the mapping result of its inner object output then, calculate target window (piece, zone) one by one by the mapping computational algorithm, calculating finishes, the output mapping result.

Fig. 5 and Fig. 6 are to use the effect contrast figure before and after the present invention.Fig. 5 is to use the preceding striograph of the present invention, and as can be seen from the figure upper and lower, left three limits have information covered, and the right is limited because of display message, and covering can be accepted; Fig. 6 is to use striograph behind the present invention, as can be seen from the figure marginal information show complete, four limit tights simultaneously, display effect meets popular watching habit.

Claims

1. the method that a partial information when solving multimedia is hidden by the frame of TV or the space problem appears in the TV edge during multimedia is characterized in that:

The user find that information that TV shows hides or the edge voids problem after, adjust indication range voluntarily;

Increase " visible edge detection " function in the menu of information release terminal;

The user uses a teleswitch or the keyboard adjustment, upper and lower key realizes that focus is switched between top, bottom, the left side, the right, left-right key increases, reduces counting of focus limit, can show on the screen and be capped counting and visual diagram of part, increase progressively, successively decrease with what adjustment was counted, respective regions becomes greatly thereupon, diminishes on the screen, makes the user by occurring hiding or the critical value in space with quantitative increasing progressively, successively decrease to find;

When the user think four limit adjustment reach satisfied promptly find out critical value after, confirm to preserve, be 0 if certain limit adjustment is established adjusted value;

During multimedia, all output windows all must call mapping method, read edge detection results simultaneously and shine upon calculating;

Output window mapping computational algorithm is as follows: establishing original design resolution is Wa*Ha; If the left hand edge adjusted value is Xa, the right is that Xb, top are Ya, the following Yb of being, below the Wa of Chu Xianing, Ha, Xa, Xb, Ya, Yb are same definition; If certain window is described as in the original design (x, y, w, h), x is that window top left corner apex abscissa, y are that window top left corner apex ordinate, w are that window width, h are window height; If mapping target window correspondence be described as (X, Y, W, H), X is mapping target window height for mapping target window top left corner apex ordinate, W for mapping target window width, H for mapping target window top left corner apex abscissa, Y; The mapping computational algorithm is: X=Xa+x*[(Wa-Xa-Xb)/and Wa]; Y=Ya+y*[(Ha-Ya-Yb)/Ha]; W=w*[(Wa-Xa-Xb)/Wa]; H=h*[(Ha-Ya-Yb)/Ha]; Voluntarily the result is rounded in the computational process;

The mapping of the object output in the output window is calculated and calculated by following algorithm: establishing the position of object output in window in the window and be with the window upper left corner is reference; If this window upper left corner coordinate in window is (0,0); If the apex coordinate of the object output in the window is a benchmark with upper left corner coordinate (0,0) in the window; If object output is described as (x0 in window, y0, w0, h0), x0 is that object output top left corner apex abscissa, y0 are that object output top left corner apex ordinate, w0 are that object output width, h0 are the object output height, and the mapping object output after mapping is calculated is described as (X0, Y0, W0, H0), X0 is mapping object output height for mapping object output top left corner apex ordinate, W0 for mapping object output width, H0 for mapping object output top left corner apex abscissa, Y0; Algorithm is as follows: X0=x0*[(Wa-Xa-Xb)/and Wa]; Y0=y0*[(Ha-Ya-Yb)/Ha]; W0=w0*[(Wa-Xa-Xb)/Wa]; H0=h0*[(Ha-Ya-Yb)/Ha]; Voluntarily the result is rounded in the computational process;

Calculate the mapping result of output window earlier, calculate the mapping result of its inner object output then, calculate target window one by one by the mapping computational algorithm, calculating finishes, the output mapping result.