CN103340600A - Method and system for processing wave form distortion of monitor - Google Patents
Method and system for processing wave form distortion of monitor Download PDFInfo
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- CN103340600A CN103340600A CN201310233854XA CN201310233854A CN103340600A CN 103340600 A CN103340600 A CN 103340600A CN 201310233854X A CN201310233854X A CN 201310233854XA CN 201310233854 A CN201310233854 A CN 201310233854A CN 103340600 A CN103340600 A CN 103340600A
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Abstract
Provided is a method for processing wave form distortion of a monitor. The method for processing the wave form distortion of the monitor comprises the following steps of (1) obtaining M sets of sampling data of a list of pixel coordinates, defining a set of latest obtained sampling data as a current set, (2) calculating a characteristic value of the current set, and (3) carrying out correspondence on data of the list of the pixel coordinates and colors on a display screen of the monitor, and displaying the corresponding colors on corresponding pixel points on the display screen of the monitor. According to the method for processing the wave form distortion of the monitor, due to the fact that operation processing is carried out on a plurality of sets of sampling data, the problem of the wave form distortion caused by the fact that the monitor is interfered by external signals is overcome, and the actually displayed wave forms can achieve the fidelity effect. Due to the facts that wave form luminance of the display screen on lists of pixel points is the best when the characteristic value of each pixel point reaches, and thinning processing is upwards and downwards carried out step by step, smooth repair can be carried out on the actually displayed wave forms.
Description
Technical field
The present invention relates to the monitor waveform Display Processing Technology of field of medical technology, particularly relate to method and the processing system of on the monitor distorted waveform being carried out the fidelity processing.
Background technology
Monitor with its can be by the demonstration on the display screen the waveform situation to patient's physical condition carry out in real time, fast, the advantage of accurately monitoring is widely used in field of medical technology.
Shown waveform is to realize by scanning algorithm on traditional monitor, namely in a sampling period, will connect drafting at the curve that passes through straight line or static state between each pixel that obtains of sampling on the display screen, and all be to represent with a kind of color of brightness.The mode that this waveform shows has only been expressed the process that some signal trajectories change, but because the discrete feature of digital signal, and adopt the color with a kind of brightness that waveform is shown, therefore often see when observing waveform that signal tangible jagged turnover can occur and change, can not produce level and smooth, fine and smooth visual effect.In addition, be subjected at monitor under the situation of outer signals interference, be easy on the monitor sample abnormal signal point and display it, cause the shown actual waveform that comes out to have big difference with theoretic ideal waveform, thereby produce the wave distortion problem.
Summary of the invention
Based on this, be necessary at described problem, provide a kind of distorted waveform on the monitor is carried out method and the processing system that fidelity is handled.
Wave distortion processing method on a kind of monitor is used for that waveform shown on the monitor is carried out fidelity and handles, and it comprises the steps:
Obtain M group sampled data on the string pixel coordinate: obtain the M group sampled data of adjacent time on the string pixel coordinate, and just up-to-date one group of sampled data obtaining is defined as current group;
Calculate the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, calculate the meansigma methods of selected sampled data as eigenvalue;
Data on this row pixel coordinate are corresponding with the color on the described monitor display screen: as to be light tone in the described monitor display screen with the color settings of this above eigenvalue of row pixel coordinate, centered by described eigenvalue, other data on this row pixel coordinate are carried out color deepening correspondence gradually.
Adopt described color with the data show on this row pixel coordinate to the described monitor display screen on the corresponding pixel.
Among embodiment, the step of the eigenvalue of the described current group of sampled data of described calculating comprises therein:
Read the first maximum MaxValue and the first minimum M inValue of described current group of sampled data: read the maximum in the described current group of sampled data and be defined as the first maximum MaxValue, read the minima in the described current group of sampled data and be defined as the first minimum M inValue;
Calculate the eigenvalue MidValue of current group of sampled data: calculate the eigenvalue MidValue of described current group of sampled data according to the described first maximum MaxValue and the described first minimum M inValue, the define method of described eigenvalue MidValue is: MidValue=(MaxValue+MinValue)/2.
Among embodiment, the step of the eigenvalue of the described current group of sampled data of described calculating comprises therein:
Read all values Y1 of described current group of sampled data, Y2, Yn, and calculate the described eigenvalue AverageValue of current group of sampled data, the define method of described eigenvalue AverageValue is: AverageValue=(Y1+Y2+ ... + Yn)/N, wherein, N is the number of samples of described current group of sampled data.
Among embodiment, before the described step that data on this row pixel coordinate are corresponding with the color on the described monitor display screen, also comprise the steps: therein
Read the second maximum All-MaxValue and the second minima All-MinValue of the above M group sampled data of described string pixel coordinate: read the maximum in the described M group sampled data and be defined as the second maximum All-MaxValue, read the minima in the described M group sampled data and be defined as the second minima All-MaxValue;
Calculate the described second maximum All-MaxValue of described M group sampled data and the deviate Dy between the described second minima All-MinValue: the define method of described deviate Dy is: Dy=All-MaxValue – All-MinValue;
Set the scope of data that will carry out the color correspondence on this row pixel coordinate: centered by described eigenvalue, with half of described deviate Dy serve as distance upwards and set the scope that will carry out the data of color correspondence on this row pixel coordinate downwards.
Therein among embodiment, before the described step of obtaining the group of M on string pixel coordinate sampled data, also comprise, obtain one group of sampled data on the string pixel coordinate: by setting the sampling time section T that the string pixel coordinate is carried out repeated sampling, be set in the data that can sample in the described sampling time section T thus indirectly, and it is defined as one group of sampled data.
Among embodiment, described setting comprises the setting step that the string pixel coordinate carries out the sampling time section T of repeated sampling therein:
Obtain the basic parameter of described monitor: comprise, obtain on resolution P, the demonstration length W on the described monitor display screen of the sample frequency F of described monitor, described monitor and the described monitor display screen in the second can display waveform length L;
Calculate the described monitor sampling number in one second: go out the pixel number Dot:Dot=L*P/W that can sample in the shown waveform length L scope in one second at described monitor display screen according to the Parameter Calculation of described monitor; And determine the sampling number Num.:Num.=F/Dot that a second, described signal input unit can receive in this waveform length L scope according to the sample frequency F of described monitor;
Calculate the described sampling time section T that the string pixel coordinate is carried out repeated sampling: according to the fidelity of required waveform and the arithmetic speed of actual monitor, determine the sampling number N of one group of sampled data on the string pixel coordinate in this waveform length L scope, and according to determined sampling number N and sampling number Num. that a described second, described signal input unit can receive, calculate and described the string pixel coordinate is carried out the sampling time section T of repeated sampling, its define method is: T=N/Num..
Wave distortion processing system on a kind of monitor is used for that waveform shown on the described monitor is carried out fidelity and handles, and comprises as lower module:
The sampled data acquisition module is used for obtaining M group sampled data on the string pixel coordinate;
The sampled data computing module, for eigenvalue and the deviate of calculating described current group of sampled data, described sampled data computing module reads described current group of sampled data of described sampled data acquisition module, and carries out the computing of described eigenvalue; Read the described adjacent time M group sampled data of described sampled data acquisition module, and carry out the computing of described deviate Dy;
The color computing module, be used for the data on this row pixel coordinate are corresponding with the color on the described monitor display screen, described color computing module reads the described eigenvalue of described calculation process module, described deviate Dy, and the color settings of described eigenvalue is light tone, and centered by described eigenvalue, to other data on the described row pixel coordinate carry out color gradually deepening set or in described scope of data to other data on this row pixel coordinate carry out color gradually deepening set;
The screen output module be used for to adopt described color with the corresponding pixel to the described monitor display screen of the data show on this row pixel coordinate.
Therein among embodiment, also comprise and be arranged on the preceding human-computer interface module of described sampled data acquisition module, described human-computer interface module is used for setting the sampling time section T that the string pixel coordinate is carried out repeated sampling, can carry out the sampled data grouping according to user's requirement to guarantee described sampled data acquisition module.
The processing method of wave distortion and processing system on the described monitor, by to being arranged on M group sampled data on the string pixel coordinate value of sampling, calculate the eigenvalue of current group of sampled data, be light tone in the monitor display screen with the color settings of this above eigenvalue of row pixel coordinate, and centered by described eigenvalue, other data on this row pixel coordinate are carried out color deepening processing gradually.At last the corresponding color of data on this row pixel coordinate is shown on the pixel corresponding on the monitor display screen.By wave distortion processing method on this monitor, under the prerequisite that does not influence waveform demonstration in real time, at first many groups sampled data is carried out after the calculation process waveform of finishing dealing with being presented on the display screen, thereby overcome effectively owing to monitor is subjected to outer signals and disturbed the wave distortion problem that causes, the waveform that makes actual displayed can be near theoretic ideal waveform, thereby reaches the effect of waveform fidelity.In addition and since display screen on each row pixel shown waveform brightness with its eigenvalue for the brightest, progressively desalinate on both sides up and down, can under the situation that satisfies the detection waveform fidelity hackle mark on its waveform smoothly be repaired.
Description of drawings
Fig. 1 is the workflow diagram of wave distortion processing method on the monitor;
Fig. 2 is for setting the workflow diagram of the sampling time section T of repeated sampling on the string pixel coordinate;
Fig. 3 is the workflow diagram of the range of scatter of setting eigenvalue two ends descending luminance;
Fig. 4 is the module map of wave distortion processing system on the monitor.
The specific embodiment
As shown in Figure 1, the processing method of wave distortion on the monitor of present embodiment, it comprises the steps:
Step S110 obtains the M group sampled data of adjacent time on the string pixel coordinate, and up-to-date one group of sampled data obtaining is defined as current group.
In this step, at first, need to set one group of sampled data on the string pixel coordinate, because the number of one group of sampled data on the string pixel coordinate mainly is to determine by the basic parameter of monitor and to the sampling time section T that the string pixel coordinate carries out repeated sampling, because the basic parameter of monitor is certain, therefore, we can be set in the data that can sample in the described sampling time section T indirectly according to the sampling time section T that definite string pixel coordinate carries out repeated sampling, and it is defined as one group of sampled data.
Please join Fig. 2 and set the workflow diagram of the sampling time section T of repeated sampling on the string pixel coordinate, it comprises the steps:
Step S111 obtains the basic parameter of monitor.It comprises following parameter:
1) the sample frequency F of monitor; The sample frequency F of monitor has defined per second extracted and formed discrete signal from continuous signal number of samples.In this example, the sample frequency F of monitor is 250Hz, i.e. this monitor 250 discrete signals of can sampling out from the continuous signal that it monitors each second.
2) the resolution P of monitor; The resolution P of monitor has defined the precision of shown image in the display screen, and pixel that display screen can show what namely refer to.The definition of resolution P has generally comprised laterally and resolution longitudinally, and can be imagined as entire image shown in the display screen is a large-scale chessboard, and the expression mode of resolution be exactly all row to the number of row to the cross point, i.e. pixel number.Generally speaking, the resolution P of display screen is more high, and picture is just more meticulous, and the information of the same internal energy demonstration of screen area is also more many.In this example, the lateral resolution Px of this display screen is 800 pixels, and longitudinal resolution Py is 600 pixels, namely in the entire image of display screen, can show 800*600 pixel.
3) monitor visual width W on display screen; Be the width that to observe the screen that waveform shows on the display screen of monitor.In the present embodiment, the visual width W of this screen is 245.8mm, and 800 pixels namely need can laterally evenly distribute in the width range of 245.8mm.
4) length L that can display waveform in the second on the monitor display screen; Since the operational performance of different monitors with and the difference of display screen size, length difference that can display waveform in the second on the monitor display screen.In this example, the waveform length L that show a second on the monitor display screen is 25mm.
Step S112 calculates the sampling number of monitor in a second.It comprises the steps:
1) at first go out the pixel number Dot that can sample in the shown waveform length L scope at the monitor display screen according to the Parameter Calculation of monitor among the step S111 in a second, its computing formula is: Dot=L*P/W;
In the present embodiment, because the waveform length L that can show a second on the monitor display screen is 25mm, the visual width W on the monitor display screen is 245.8mm, wherein laterally is evenly distributed with 800 pixels in the visual width W scope of display screen.In a second, in the waveform length L scope at this 25mm, the pixel number Dot=25*800/245.8 that can sample is about 81 pixels so.
2) according to described resulting pixel number Dot, confirm in the sample frequency F of monitor the sampling number Num.:Num.=F/Dot that can be sampled in inherent this waveform length L scope a second;
In the present embodiment, the sample frequency of monitor is 250Hz, times N um. that can corresponding 81 pixel numbers repeat to sample in the waveform length scope of the 25mm that display screen shows in one second is 250/81 time, namely at string pixel coordinate that can display waveform the chance that is sampled at least 3 times is arranged in a second.(since sampling number Num. in the calculating process of reality, also include fractional part, when monitor reality is sampled in each row pixel coordinate scope, wherein the sampling number Num. of certain string pixel coordinate in a second can accumulate and reach 4 times, therefore, here represented sampling number Num. is rough data also, and truthful data needs the actual operation of internal processes process to obtain).
Step S113, calculate the described sampling time section T that the string pixel coordinate is carried out repeated sampling, according to the fidelity of required waveform and the arithmetic speed of actual monitor, under the prerequisite that does not influence waveform demonstration in real time, determine the sampling number N of one group of sampled data on the string pixel coordinate in this waveform length L scope, and according to determined sampling number N and the described sampling number Num. that a second, signal input unit can receive, calculate and described the string pixel coordinate is carried out the sampling time section T of repeated sampling, its define method is: T=N/Num..
Such as, for some detecting instruments that the fidelity of waveform is had relatively high expectations, we can get about 9 sampled points (sampling number N is 9) at the string pixel coordinate, and namely needing the time period T of repeated sampling at this row pixel coordinate is 9/3, is 3S.That is to say, after this row pixel coordinate needs repeated sampling 3S, just can sample 9 sampled datas at display screen, still, the problem of bringing thus is that monitor can cause the decline of waveform display speed because of the increase of sampled data.In the present embodiment, should be decided to be 1S by sampling time section T, thereby, the fidelity of waveform and the requirement of waveform display speed two aspects can be taken into account.
By the enforcement of described step, the setting of the sampling time section T by the string pixel coordinate being carried out repeated sampling just can obtain on this row pixel coordinate one group of sampled data in should sampling time section T, wherein, sampling number is N, and should organizing sampled data, to be stored as one be Xi with this row pixel coordinate, and each sampled data value is Y1 in this sampling time section T, Y2, Yn, one group of array A:{(Xi, Y1) (Xi, Y2) ... (Xi, Yn) }.
Next step just can obtain the M group sampled data of adjacent time on the string pixel coordinate according to the preparation method of described one group of sampled data, and up-to-date one group of sampled data obtaining is defined as current group.
Step S120 calculates the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, calculate the meansigma methods of selected sampled data as eigenvalue.
Wherein, the method for specifically calculating the eigenvalue of current group of sampled data has two kinds:
First method is the intermediate value that described eigenvalue is set at current group of all sampled datas, and its concrete steps are as follows: obtain the maximum in all sampled datas in current group by algorithm, and be set at the first maximum MaxValue; Obtain the minima in all sampled datas in current group by algorithm, and be set at the first minimum M inValue.According to the first maximum MaxValue that obtains and the value of the first minimum M inValue, calculate the intermediate value MidValue of current group of sampled data again, wherein, the define method of intermediate value MidValue is: MidValue=(MaxValue+MinValue)/2;
And second method is the meansigma methods that described eigenvalue is set at current group of all sampled datas, its concrete steps are as follows: read current group of all sampled data value Y1, Y2, Yn, and calculate the meansigma methods AverageValue of current group of all sampled datas by algorithm: the define method of meansigma methods AverageValue is: AverageValue=(Y1+Y2+ ... + Yn)/N, N is the number of samples of current group of sampled data, is this row pixel coordinate is carried out number of samples N in the sampling time section T of repeated sampling.·
By sampling pixel points being carried out the computing of described eigenvalue, many group sampled datas carry out after the calculation process waveform of handling being presented on the display screen, can overcome effectively owing to monitor is subjected to outer signals and disturb the waveform fluctuation problem of dtmf distortion DTMF that causes, thereby the waveform that makes actual displayed can be more near theoretic ideal waveform, thereby reaches the effect of waveform fidelity.
Step S130, data on this row pixel coordinate are corresponding with the color on the monitor display screen: on this row pixel coordinate, the color of eigenvalue is set to highest brightness value Maxcolor in the monitor display screen, and, centered by eigenvalue, make its brightness deepening correspondence gradually to the diffusion of the two ends of eigenvalue.
In the described step, two ends descending luminance diffusion computing to eigenvalue need all will be carried out the brightness computing to the color of whole 600 pixels on the corresponding display screen of this row pixel coordinate, and in actual use, in order to improve the arithmetic speed of monitor, in the preferred embodiment, can will will do the restriction of an algorithm to the range of scatter of the two ends descending luminance of eigenvalue in the described step, Fig. 3 is the workflow diagram of the range of scatter of setting eigenvalue two ends descending luminance; It comprises the steps:
Step S131 reads the M group sampled data of adjacent time, obtains wherein maximum and minima by algorithm, wherein maximum is defined as the second maximum All-MaxValue, and minima is defined as the second minima All-MaxValue;
Step S132, by obtaining of the second maximum All-MaxValue and the second minima All-MaxValue, calculate the second maximum All-MaxValue of M group sampled data and the deviate Dy between the second minima All-MinValue, wherein, the define method of this deviate Dy is: Dy=All-MaxValue – All-MinValue;
Step S133, set the scope of data that will carry out the color correspondence on this row pixel coordinate: centered by eigenvalue, with half of deviate Dy serve as distance upwards and set the scope that will carry out the data of color correspondence on this row pixel coordinate downwards.
By the restriction of described range of scatter, guaranteeing to improve the arithmetic speed of monitor greatly under the level and smooth situation of repairing of waveform.
Step S140, the setting value of color is shown to the data of corresponding all data or certain limit on this row pixel coordinate on the pixel of respective column on the monitor display screen by this color settings value in the described step of described employing.
By step S130 and step S140, with display screen on each row pixel shown waveform brightness with its eigenvalue for the brightest, progressively processing is desalinated on both sides up and down, can under the situation that satisfies the detection waveform fidelity hackle mark on its waveform smoothly be repaired.
Detector when the M group sampled data of adjacent time is sampled, when the not enough M of the sampled data on the string pixel organizes, owing to described calculating process can't carry out, so wouldn't be exported the color value of respective column at first on the monitor display screen.
Below, describe the operation conditions of above each step again in detail by an embodiment, in this example, the sample frequency F of monitor is 250Hz, display resolution is 800*600 pixel, the visual width W of screen is 245.8mm, length L that can display waveform in the second on the monitor display screen is 25mm, setting is 1S to the sampling time section T that the string pixel coordinate carries out repeated sampling, namely in a second, on this row pixel coordinate, can be sampled at least 3 times, selected this row pixel coordinate is 101, in the section sometime in the adjacent 3 groups of sampled datas of this row pixel coordinate acquisition, actual obtaining:
The sampled data of " current group " is followed successively by:
{101，84}，{101，92}，{101，82}；
Be positioned at " current group " the sampled data of " last group " be followed successively by:
{101，89}，{101，83}，{101，94}；
Be positioned at " current group " the sampled data of " preceding two groups " be followed successively by:
{101，76}，{101，88}，{101，85}；
Computer reads this 3 groups of sampled datas, and obtains by computing:
" first maximum " MaxValue=92;
" first minima " MinValue=82;
" second maximum " All-MaxValue=94;
" second minima " All-MinValue=76;
" intermediate value of sampled data " MidValue=87.
" sampled data deviation " Dy=18.
{ brightness value of 101,87} is set to highest brightness value Maxcolor with sampled data median point position; And by program centered by intermediate value,, with half of deviate Dy serve as distance upwards and setpoint color gradual change downwards, its algorithm is as follows:
By described algorithm, can carry out corresponding with brightness flop numerical value on the display screen numerical value of this row pixel coordinate, at last, color on this row pixel coordinate is outputed on the display screen, according to the method, just the color on each row pixel coordinate can be outputed on the corresponding pixel points corresponding on the display screen, and demonstrate waveform.
Method by wave distortion processing on the monitor of present embodiment, under the prerequisite that does not influence waveform demonstration in real time, at first 3 groups of sampled datas are carried out analyzing and processing and obtain intermediate value, therefore thereby make shown waveform express the waveform trace of an even variation of a plurality of sampled datas, can not produce because monitor is subjected to the wave distortion problem that produces under the situation of outer signals interference.In addition, handle by all the other sampled datas of median point position on each row pixel coordinate being carried out the brightness desalination, can when satisfying detection waveform fidelity function, the hackle mark on its waveform smoothly be repaired.
Please join Fig. 4, based on wave distortion processing method on the described monitor, present embodiment has also proposed wave distortion processing system on a kind of monitor, is used for that waveform shown on the monitor is carried out fidelity and handles, and it comprises as lower module:
Human-computer interface module 110, the user inputs to the sampling time section T that the string pixel coordinate carries out repeated sampling in the human-computer interface module according to the actual requirement of oneself, can carry out the packet memory of sampled data according to user's demand to guarantee follow-up module.
Sampled data acquisition module 120, it is connected with signals collecting end and the human-computer interface module 110 of monitor, be used for obtaining the sampled data that inputs on the monitor, and will input to sampled data on the monitor based on the sampling time section T of the repeated sampling set in the human-computer interface module 110, sampled data is carried out grouping management, wherein, one group of sampled data has N sampled point.At last, the sampled data that will divide into groups by sampled data acquisition module 120 is stored standby.Wherein, in the adjacent time M group sampled data that sampled data acquisition module 120 is stored, Cun Chu one group of sampled data is set to current group at last, the data setting that is positioned at current group last group is last group, being positioned at current group of preceding two groups data setting is preceding two groups,, the data setting that is positioned at current group of preceding M-1 group is preceding M-1 group.
Sampled data computing module 130 is connected with sampled data acquisition module 120, reads current group of sampled data in the sampled data acquisition module 120, and carries out the computing of eigenvalue by internal algorithm; In addition, sampled data computing module 130 can also read adjacent time M group sampled data in the sampled data acquisition module 120, and carries out the computing of deviate Dy by internal algorithm.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. wave distortion processing method on the monitor is used for that waveform shown on the monitor is carried out fidelity and handles, and it is characterized in that it comprises the steps:
Obtain M group sampled data on the string pixel coordinate: obtain the M group sampled data of adjacent time on the string pixel coordinate, and just up-to-date one group of sampled data obtaining is defined as current group;
Calculate the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, calculate the meansigma methods of selected sampled data as eigenvalue;
Data on this row pixel coordinate are corresponding with the color on the described monitor display screen: as to be light tone in the described monitor display screen with the color settings of this above eigenvalue of row pixel coordinate, centered by described eigenvalue, other data on this row pixel coordinate are carried out color deepening correspondence gradually.
Adopt described color with the data show on this row pixel coordinate to the described monitor display screen on the corresponding pixel.
2. wave distortion processing method on the monitor according to claim 1 is characterized in that, the step of the eigenvalue of the described current group of sampled data of described calculating comprises:
Read the first maximum MaxValue and the first minimum M inValue of described current group of sampled data: read the maximum in the described current group of sampled data and be defined as the first maximum MaxValue, read the minima in the described current group of sampled data and be defined as the first minimum M inValue;
Calculate the eigenvalue MidValue of current group of sampled data: calculate the eigenvalue MidValue of described current group of sampled data according to the described first maximum MaxValue and the described first minimum M inValue, the define method of described eigenvalue MidValue is: MidValue=(MaxValue+MinValue)/2.
3. wave distortion processing method on the monitor according to claim 1 is characterized in that, the step of the eigenvalue of the described current group of sampled data of described calculating comprises:
Read all values Y1 of described current group of sampled data, Y2, Yn, and calculate the described eigenvalue AverageValue of current group of sampled data, the define method of described eigenvalue AverageValue is: AverageValue=(Y1+Y2+ ... + Yn)/N, wherein, N is the number of samples of described current group of sampled data.
4. wave distortion processing method on the monitor according to claim 1 is characterized in that, also comprises the steps: before the described step that data on this row pixel coordinate are corresponding with the color on the described monitor display screen
Read the second maximum All-MaxValue and the second minima All-MinValue of the above M group sampled data of described string pixel coordinate: read the maximum in the described M group sampled data and be defined as the second maximum All-MaxValue, read the minima in the described M group sampled data and be defined as the second minima All-MaxValue;
Calculate the described second maximum All-MaxValue of described M group sampled data and the deviate Dy between the described second minima All-MinValue: the define method of described deviate Dy is: Dy=All-MaxValue – All-MinValue;
Set the scope of data that will carry out the color correspondence on this row pixel coordinate: centered by described eigenvalue, with half of described deviate Dy serve as distance upwards and set the scope that will carry out the data of color correspondence on this row pixel coordinate downwards.
5. wave distortion processing method on the monitor according to claim 1, it is characterized in that, before the described step of obtaining the group of M on string pixel coordinate sampled data, also comprise, obtain one group of sampled data on the string pixel coordinate: by setting the sampling time section T that the string pixel coordinate is carried out repeated sampling, be set in the data that can sample in the described sampling time section T thus indirectly, and it is defined as one group of sampled data.
6. wave distortion processing method on the monitor according to claim 5 is characterized in that, described setting comprises the setting step that the string pixel coordinate carries out the sampling time section T of repeated sampling:
Obtain the basic parameter of described monitor: comprise, obtain on resolution P, the demonstration length W on the described monitor display screen of the sample frequency F of described monitor, described monitor and the described monitor display screen in the second can display waveform length L;
Calculate the described monitor sampling number in one second: go out the pixel number Dot:Dot=L*P/W that can sample in the shown waveform length L scope in one second at described monitor display screen according to the Parameter Calculation of described monitor; And determine the sampling number Num.:Num.=F/Dot that a second, described signal input unit can receive in this waveform length L scope according to the sample frequency F of described monitor;
Calculate the described sampling time section T that the string pixel coordinate is carried out repeated sampling: according to the fidelity of required waveform and the arithmetic speed of actual monitor, determine the sampling number N of one group of sampled data on the string pixel coordinate in this waveform length L scope, and according to determined sampling number N and sampling number Num. that a described second, described signal input unit can receive, calculate and described the string pixel coordinate is carried out the sampling time section T of repeated sampling, its define method is: T=N/Num..
7. wave distortion processing system on the monitor is used for that waveform shown on the described monitor is carried out fidelity and handles, and it is characterized in that, comprises as lower module:
The sampled data acquisition module is used for obtaining M group sampled data on the string pixel coordinate;
The sampled data computing module, for eigenvalue and the deviate of calculating described current group of sampled data, described sampled data computing module reads described current group of sampled data of described sampled data acquisition module, and carries out the computing of described eigenvalue; Read the described adjacent time M group sampled data of described sampled data acquisition module, and carry out the computing of described deviate Dy;
The color computing module, be used for the data on this row pixel coordinate are corresponding with the color on the described monitor display screen, described color computing module reads the described eigenvalue of described calculation process module, described deviate Dy, and the color settings of described eigenvalue is light tone, and centered by described eigenvalue, to other data on the described row pixel coordinate carry out color gradually deepening set or in described scope of data to other data on this row pixel coordinate carry out color gradually deepening set;
The screen output module be used for to adopt described color with the corresponding pixel to the described monitor display screen of the data show on this row pixel coordinate.
8. wave distortion processing system on a kind of monitor according to claim 7, it is characterized in that, also comprise and be arranged on the preceding human-computer interface module of described sampled data acquisition module, described human-computer interface module is used for setting the sampling time section T that the string pixel coordinate is carried out repeated sampling, can carry out the sampled data grouping according to user's requirement to guarantee described sampled data acquisition module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104914284A (en) * | 2015-05-21 | 2015-09-16 | 深圳市鼎阳科技有限公司 | Method and device for regulating grayscale intensity of oscilloscope |
| CN107049257A (en) * | 2017-04-21 | 2017-08-18 | 成都心吉康科技有限公司 | Method, device and the wearable device of display waveform |
| CN109491628A (en) * | 2018-10-16 | 2019-03-19 | 广东宝莱特医用科技股份有限公司 | A kind of method for drafting and system of quick reverse sawtooth waveform |
| CN113723393A (en) * | 2021-11-03 | 2021-11-30 | 浙江宇视科技有限公司 | Image acquisition method, image acquisition device, electronic device, and medium |
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| CN111345807B (en) * | 2018-12-21 | 2022-08-09 | 四川锦江电子科技有限公司 | Electrocardiographic waveform drawing method, module and device |
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| CN104914284A (en) * | 2015-05-21 | 2015-09-16 | 深圳市鼎阳科技有限公司 | Method and device for regulating grayscale intensity of oscilloscope |
| CN104914284B (en) * | 2015-05-21 | 2017-11-21 | 深圳市鼎阳科技有限公司 | A kind of oscillograph gray-scale intensity adjusting method and device |
| CN107049257A (en) * | 2017-04-21 | 2017-08-18 | 成都心吉康科技有限公司 | Method, device and the wearable device of display waveform |
| CN109491628A (en) * | 2018-10-16 | 2019-03-19 | 广东宝莱特医用科技股份有限公司 | A kind of method for drafting and system of quick reverse sawtooth waveform |
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| CN113723393B (en) * | 2021-11-03 | 2022-03-18 | 浙江宇视科技有限公司 | Image acquisition method, image acquisition device, electronic device, and medium |
Also Published As
| Publication number | Publication date |
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| WO2014198076A1 (en) | 2014-12-18 |
| CN103340600B (en) | 2016-03-30 |
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