CN103340600B - Wave distortion processing method and processing system on monitor - Google Patents
Wave distortion processing method and processing system on monitor Download PDFInfo
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Abstract
Wave distortion processing method on a kind of monitor, comprises the steps: to obtain M group sampled data on string pixel coordinate, and one of up-to-date acquisition group of sampled data is defined as current group; Calculate the eigenvalue of current group; Data on this row pixel coordinate and the Color pair on monitor display screen are answered, and corresponding color is shown on pixel corresponding on monitor display screen.This wave distortion processing method, by carrying out calculation process to many group sampled datas, overcomes the wave distortion problem caused because monitor is subject to outer signals interference, makes the waveform of actual displayed reach the effect of fidelity.Because display screen waveform brightness on each row pixel is the brightest with its eigenvalue, progressively upwards and downwards carry out desalination process, can the smoothing reparation to the waveform shown by reality.
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 distorted waveform being carried out by monitor fidelity process.
Background technology
The advantage that monitor can be carried out in real time the physical condition of patient by the waveform situation of the display on display screen with it, fast, accurately monitor is widely used in field of medical technology.
Waveform shown on traditional monitor is realized by scanning algorithm, namely within a sampling period by a display screen connected by the curve of straight line or static state between each pixel that obtains of sampling and draw, and be all represent with a kind of color of brightness.The mode of this waveform display only have expressed the process of some signal trajectories change, but due to the discrete feature of digital signal, and adopt the Color pair waveform of same brightness to show, therefore often seeing that signal there will be obvious jagged transition variation when observing waveform, level and smooth, fine and smooth visual effect can not be produced.In addition, when monitor is subject to outer signals interference, monitor is easy to sample abnormal signal point and display it, actual waveform out shown by causing cannot have big difference with theoretic ideal waveform, thus produces wave distortion problem.
Summary of the invention
Based on this, be necessary for described problem, a kind of method and processing system of distorted waveform on monitor being carried out to fidelity process are provided.
Wave distortion processing method on a kind of monitor, for carrying out fidelity process to waveform shown on monitor, it comprises the steps:
Obtain M group sampled data on string pixel coordinate: the M group sampled data obtaining adjacent time on string pixel coordinate, and one group of sampled data of just up-to-date acquisition is defined as current group;
Calculate the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, the meansigma methods of the sampled data selected by calculating is as eigenvalue;
By the Color pair in the data on this row pixel coordinate and described monitor display screen should: be the most light tone in described monitor display screen by the color settings of described eigenvalue on this row pixel coordinate, centered by described eigenvalue, color dimmed correspondence is gradually carried out to other data on this row pixel coordinate.
Described color is adopted the data on this row pixel coordinate to be shown on pixel corresponding on described monitor display screen.
Wherein in an embodiment, 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 described current group of sampled data and be defined as the first maximum MaxValue, read the minima in 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: the eigenvalue MidValue calculating described current group of sampled data according to described first maximum MaxValue and described first minimum M inValue, the define method of described eigenvalue MidValue is: MidValue=(MaxValue+MinValue)/2.
Wherein in an embodiment, 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.
Wherein in an embodiment, also comprised the steps: before the described step that Color pair in data on this row pixel coordinate and described monitor display screen is answered
Read the second maximum All-MaxValue and the second minima All-MinValue of described M group sampled data on described string pixel coordinate: read the maximum in described M group sampled data and be defined as the second maximum All-MaxValue, read the minima in described M group sampled data and be defined as the second minima All-MaxValue;
The define method calculating deviate Dy: the described deviate Dy between the described second maximum All-MaxValue of described M group sampled data and described second minima All-MinValue is: Dy=All-MaxValue – All-MinValue;
Set the scope of data this row pixel coordinate will carried out Color pair and answer: centered by described eigenvalue, with the half of described deviate Dy for distance upwards and downwards this row pixel coordinate of setting being carried out the scope of the data that Color pair is answered.
Wherein in an embodiment, on described acquisition string pixel coordinate M group sampled data step before also comprise, obtain one group of sampled data on string pixel coordinate: the sampling time section T by setting, string pixel coordinate being carried out to repeated sampling, indirectly be set in the data that can sample in described sampling time section T thus, and be defined as one group of sampled data.
Wherein in an embodiment, the sampling time section T of repeated sampling is carried out in described setting setting procedure to string pixel coordinate comprises:
Obtain the basic parameter of described monitor: comprise, obtaining on display length W on the sample frequency F of described monitor, the resolution P of described monitor, described monitor display screen and described monitor display screen in the second can the length L of display waveform;
Calculate the sampling number in described monitor one second: go out the pixel number Dot:Dot=L*P/W that can sample within the scope of waveform length L shown within described monitor display screen one second according to the Parameter Calculation of described monitor; And determine according to the sample frequency F of described monitor the sampling number Num.:Num.=F/Dot that signal input unit described in the second can receive within the scope of this waveform length L;
Calculate described sampling time section T string pixel coordinate being carried out to 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 within the scope of this waveform length L on string pixel coordinate, and the sampling number Num. that signal input unit can receive according to determined sampling number N and a described second, calculate described sampling time section T string pixel coordinate being carried out to repeated sampling, its define method is: T=N/Num..
Wave distortion processing system on a kind of monitor, for carrying out fidelity process to waveform shown on described monitor, comprises as lower module:
Sampled data acquisition module, for obtaining M group sampled data on string pixel coordinate;
Sampled data computing module, for calculating eigenvalue and the deviate of 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;
Color computing module, for the Color pair in the data on this row pixel coordinate and described monitor display screen is answered, described color computing module reads the described eigenvalue of described calculation process module, described deviate Dy, and be most light tone by the color settings of described eigenvalue, and centered by described eigenvalue, color dimmed setting or carry out color dimmed setting gradually to other data on this row pixel coordinate in described scope of data is gradually carried out to other data on described row pixel coordinate;
Data on this row pixel coordinate are shown to pixel corresponding on described monitor display screen for adopting described color by screen output module.
Wherein in an embodiment, also comprise the human-computer interface module before being arranged on described sampled data acquisition module, described human-computer interface module carries out the sampling time section T of repeated sampling to string pixel coordinate for setting, to ensure that described sampled data acquisition module can carry out sampled data grouping according to the requirement of user.
The processing method of wave distortion and processing system on described monitor, by carrying out sampling value to the M group sampled data be arranged on string pixel coordinate, calculate the eigenvalue of current group of sampled data, it is the most light tone in monitor display screen by the color settings of described eigenvalue on this row pixel coordinate, and centered by described eigenvalue, color dimmed process is gradually carried out to other data on this row pixel coordinate.Finally the color on this row pixel coordinate corresponding to data is shown on pixel corresponding on monitor display screen.By wave distortion processing method on this monitor, do not affecting under the prerequisite that waveform shows in real time, first after calculation process being carried out to many group sampled datas, the waveform processed is shown on a display screen, thus effectively overcome the wave distortion problem caused because monitor is subject to outer signals interference, make the waveform of actual displayed close to theoretic ideal waveform, thus the effect of waveform fidelity can be reached.In addition, because the waveform brightness shown on each row pixel of display screen be the brightest with its eigenvalue, progressively both sides are desalinated up and down, can when meeting detection waveform fidelity, to the smoothing reparation of the hackle mark on its waveform.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of wave distortion processing method on monitor;
Fig. 2 is the workflow diagram of the sampling time section T of repeated sampling on setting 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 monitor.
Detailed description of the invention
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 string pixel coordinate, and one of up-to-date acquisition group of sampled data is defined as current group.
In this step, first, need to set one group of sampled data on string pixel coordinate, because the number of group sampled data of on string pixel coordinate is mainly by the basic parameter of monitor and string pixel coordinate is carried out to the sampling time section T of repeated sampling determines, because the basic parameter of monitor is certain, therefore, we according to determining that the sampling time section T that string pixel coordinate carries out repeated sampling is set in the data that can sample in described sampling time section T indirectly, and can be defined as one group of sampled data.
Please refer to the drawing 2 sets the workflow diagram of the sampling time section T of repeated sampling on string pixel coordinate, and 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 defines and per secondly extracts from continuous signal and form the number of samples of discrete signal.In this example, the sample frequency F of monitor is 250Hz, and namely this monitor can be sampled out 250 discrete signals each second from the continuous signal that it monitors.
2) the resolution P of monitor; The resolution P of monitor defines the precision of image shown in display screen, namely refer to the pixel that display screen can show number.The definition of resolution P generally comprises horizontal and longitudinal resolution, and whole image shown in display screen can be imagined as is a large-scale chessboard, and the representation of resolution be exactly all row to the number of row to cross point, i.e. pixel number.Generally speaking, the resolution P of display screen is higher, and picture is meticulousr, and the information that can show in same screen area is also more.In this example, the lateral resolution Px of this display screen is 800 pixels, and longitudinal resolution Py is 600 pixels, namely in the whole image of display screen, can show 800*600 pixel.
3) monitor visual width W on a display screen; The display screen being monitor can be observed the width of the screen of waveform display.In the present embodiment, the visual width W of this screen is 245.8mm, namely needs laterally to be uniformly distributed 800 pixels in the width range of 245.8mm.
4) can the length L of display waveform in the second on monitor display screen; Due to the operational performance of different monitor and the difference of its display screen size, on monitor display screen in the second can the length of display waveform different.In this example, on monitor display screen, the waveform length L of second display is 25mm.
Step S112, calculates the sampling number of monitor within a second.It comprises the steps:
1) first go out the pixel number Dot that can sample within the scope of the waveform length L that monitor display screen is shown within a second according to the Parameter Calculation of monitor in step S111, its computing formula is: Dot=L*P/W;
In the present embodiment, because the waveform length L that can show a second on monitor display screen is 25mm, the visual width W on monitor display screen is 245.8mm, wherein within the scope of the visual width W of display screen, is laterally evenly distributed with 800 pixels.So within a second, within the scope of the waveform length L of this 25mm, the pixel number Dot=25*800/245.8 that can sample, is about 81 pixels.
2) according to described obtained pixel number Dot, confirm in the sample frequency F of monitor, the sampling number Num.:Num.=F/Dot that a second can be sampled within the scope of this waveform length L inherent;
In the present embodiment, the sample frequency of monitor is 250Hz, the times N um. 81 pixel numbers corresponding within the scope of the waveform length of the 25mm that can show on a display screen in one second repeating sample is 250/81 time, namely the string pixel coordinate of display waveform can have the chance be sampled at least 3 times within a second.(in the calculating process of reality, also include fractional part due to sampling number Num., when monitor reality is sampled within the scope of each row pixel coordinate, wherein the sampling number Num. of certain string pixel coordinate within a second can accumulate and reach 4 times, therefore, here represented sampling number Num. is also rough data, and truthful data needs the actual operation of internal processes process to obtain).
Step S113, calculate described sampling time section T string pixel coordinate being carried out to repeated sampling, according to the fidelity of required waveform and the arithmetic speed of actual monitor, do not affecting under the prerequisite that waveform shows in real time, determine the sampling number N of one group of sampled data within the scope of this waveform length L on string pixel coordinate, and according to determined sampling number N and the described sampling number Num. that a second, signal input unit can receive, calculate described sampling time section T string pixel coordinate being carried out to repeated sampling, its define method is: T=N/Num..
Such as, require higher detecting instrument for some fidelitys to waveform, we can get about 9 sampled points (sampling number N is 9) on string pixel coordinate, and the time period T namely needing repeated sampling on this row pixel coordinate is 9/3, is 3S.That is, after display screen needs repeated sampling 3S on this row pixel coordinate, just can sample 9 sampled datas, but the problem brought thus is, monitor can cause the decline of waveform display speed because of the increase of sampled data.In the present embodiment, this sampling time section T is decided to be 1S, thus, the fidelity of waveform and the requirement of waveform display speed two aspect can be taken into account.
By the enforcement of described step, by carrying out the setting of the sampling time section T of repeated sampling to string pixel coordinate, one group of sampled data on this row pixel coordinate in this sampling time section T just can be obtained, wherein, sampling number is N, and this group sampled data is stored as one with this row pixel coordinate for Xi, in this sampling time section T, each sampled data value is Y1, Y2, Yn, one group of array A:{(Xi, Y1) (Xi, Y2) ... (Xi, Yn) }.
Next step, just according to the preparation method of described one group of sampled data, can obtain the M group sampled data of adjacent time on string pixel coordinate, and one of up-to-date acquisition group of sampled data be defined as current group.
Step S120, calculates the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, the meansigma methods of the sampled data selected by calculating is as eigenvalue.
Wherein, the concrete method calculating the eigenvalue of current group of sampled data has two kinds:
First method is the intermediate value described eigenvalue being set as current group of all sampled data, and its concrete steps are as follows: obtain the maximum in current group in all sampled datas by algorithm, and is set as the first maximum MaxValue; Obtain the minima in current group in all sampled datas by algorithm, and be set as the first minimum M inValue.Again according to the value of the first obtained maximum MaxValue and the first minimum M inValue, calculate the intermediate value MidValue of current group of sampled data, wherein, the define method of intermediate value MidValue is: MidValue=(MaxValue+MinValue)/2;
And second method is the meansigma methods described eigenvalue being set as current group of all sampled data, its concrete steps are as follows: read current group of all sampled data value Y1, Y2, Yn, and the define method being calculated the meansigma methods AverageValue of current group of all sampled data: meansigma methods AverageValue by algorithm is: AverageValue=(Y1+Y2+ ... + Yn)/N, N is the number of samples of current group of sampled data, is the number of samples N carried out this row pixel coordinate in the sampling time section T of repeated sampling.·
By carrying out the computing of described eigenvalue to sampling pixel points, after many groups sampled data carries out calculation process, the waveform processed is shown on a display screen, effectively can overcome the waveform fluctuation problem of dtmf distortion DTMF caused because monitor is subject to outer signals interference, thus make the waveform of actual displayed closer to theoretic ideal waveform, thus the effect of waveform fidelity can be reached.
Step S130, data on this row pixel coordinate and the Color pair on monitor display screen are answered: on this row pixel coordinate, the color of eigenvalue is set to highest brightness value Maxcolor in monitor display screen, and, centered by eigenvalue, the two ends diffusion to eigenvalue makes its brightness dimmed correspondence gradually.
In described step, two ends descending luminance diffusion computing to eigenvalue needs all will carry out brightness computing to the color of whole 600 pixels on the display screen corresponding to this row pixel coordinate, and in actual use, in order to improve the arithmetic speed of monitor, in preferred embodiment, in described step, the range of scatter of the two ends descending luminance to eigenvalue can will have been done the restriction of an algorithm, 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, and obtain maximum wherein and minima by algorithm, wherein maximum is defined as the second maximum All-MaxValue, minima is defined as the second minima All-MaxValue;
Step S132, by the acquisition of the second maximum All-MaxValue and the second minima All-MaxValue, calculate the deviate Dy between the second maximum All-MaxValue of M group sampled data and the second minima All-MinValue, wherein, the define method of this deviate Dy is: Dy=All-MaxValue – All-MinValue;
Step S133, sets the scope of data this row pixel coordinate will carried out Color pair and answer: centered by eigenvalue, with the half of deviate Dy for distance upwards and downwards this row pixel coordinate of setting being carried out the scope of the data that Color pair is answered.
By the restriction of described range of scatter, when ensureing that waveform is smoothly repaired, the arithmetic speed of monitor greatly can also be improved.
Step S140, in the described step of described employing, the data of all data corresponding on this row pixel coordinate or certain limit are shown on the pixel of respective column on monitor display screen by this color settings value by the setting value of color.
By step S130 and step S140, be the brightest by waveform brightness shown on each row pixel for display screen with its eigenvalue, progressively desalination process is carried out on both sides up and down, can when meeting detection waveform fidelity, to the smoothing reparation of the hackle mark on its waveform.
Detector, at first when sampling to the M group sampled data of adjacent time, when the sampled data on string pixel is less than M group, because described calculating process cannot carry out, therefore monitor display screen wouldn't export the color value of respective column.
Below, described in detail the operation conditions of above each step again 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, monitor display screen can the length L of display waveform be 25mm in one second, the sampling time section T that setting carries out repeated sampling to string pixel coordinate is 1S, namely within a second, at least 3 times can be sampled on this row pixel coordinate, this row pixel coordinate selected is 101, on this row pixel coordinate, adjacent 3 groups of sampled datas are obtained in section sometime, actually to obtain:
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 " first two groups " be followed successively by:
{101，76}，{101，88}，{101，85}；
Computer reads this 3 groups of sampled datas, and is obtained by computing:
" the first maximum " MaxValue=92;
" the first minima " MinValue=82;
" the second maximum " All-MaxValue=94;
" the second minima " All-MinValue=76;
" intermediate value of sampled data " MidValue=87.
" sampled data deviation " Dy=18.
By sampled data median point position, { brightness value of 101,87} is set to highest brightness value Maxcolor; And by program centered by intermediate value, with the half of deviate Dy for distance upwards and setpoint color gradual change downwards, its algorithm is as follows:
By described algorithm, can the numerical value of this row pixel coordinate be carried out corresponding with the brightness flop numerical value on display screen, finally, color on this row pixel coordinate is outputted on display screen, according to the method, just the color on each row pixel coordinate can be outputted in corresponding pixel points corresponding on display screen, and demonstrate waveform.
By the method for wave distortion process on the monitor of the present embodiment, do not affecting under the prerequisite that waveform shows in real time, first analyzing and processing is carried out to 3 groups of sampled datas and obtain intermediate value, thus make shown waveform have expressed the waveform trace of an even variation of multiple sampled data, therefore can not produce because monitor is subject to the wave distortion problem of generation when outer signals is disturbed.In addition, by carrying out brightness desalination process to all the other sampled datas of median point position on each row pixel coordinate, can while meeting detection waveform fidelity function, to the smoothing reparation of the hackle mark on its waveform.
Please refer to the drawing 4, based on wave distortion processing method on described monitor, the present embodiment also proposed wave distortion processing system on a kind of monitor, and for carrying out fidelity process to waveform shown on monitor, it comprises as lower module:
Human-computer interface module 110, the sampling time section T that string pixel coordinate to be carried out repeated sampling according to the actual requirement of oneself by user inputs in human-computer interface module, to ensure that follow-up module can carry out the packet memory of sampled data according to the demand of user.
Sampled data acquisition module 120, its signals collecting end with monitor and human-computer interface module 110 are connected, for obtaining the sampled data inputed on monitor, and based on the sampling time section T of the repeated sampling that the sampled data inputed on monitor is set in human-computer interface module 110, grouping management is carried out to sampled data, wherein, one group of sampled data has N number of sampled point.Finally, by sampled data acquisition module 120, the sampled data of having divided into groups is carried out storage for subsequent use.Wherein, in the adjacent time M group sampled data that sampled data acquisition module 120 stores, the one group of sampled data finally stored is set to current group, the data setting being positioned at current group last group is last group, the data setting being positioned at before current group two groups is first two groups,, the data setting being positioned at M-1 group before current group is front M-1 group.
Sampled data computing module 130, is connected with sampled data acquisition module 120, reads current group of sampled data in sampled data acquisition module 120, and is carried 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 sampled data acquisition module 120, and is carried out the computing of deviate Dy by internal algorithm.
Color computing module 140, be connected with sampled data computing module 130, for reading eigenvalue, the deviate Dy of sampled data computing module 130, and be most light tone by internal algorithm by the color settings of eigenvalue, and centered by eigenvalue, color dimmed setting or carry out color dimmed correspondence gradually to other data on this row pixel coordinate within the scope of deviate Dy setting data is gradually carried out to other data on row pixel coordinate.
Screen output module 150, be connected with color computing module 140, by color computing module 140 numerical value of string pixel coordinate and the brightness flop numerical value on display screen are carried out corresponding after, namely by screen output module 150, the color on this row pixel coordinate is outputted on the pixel corresponding with display screen.Then, according to described method, just the color on each row pixel coordinate can be outputted in the corresponding pixel points of display screen, and demonstrate actual waveform on a display screen.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It 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 (5)
1. a wave distortion processing method on monitor, for carrying out fidelity process to waveform shown on monitor, it is characterized in that, it comprises the steps:
Obtain one group of sampled data on string pixel coordinate: the sampling time section T by setting, string pixel coordinate being carried out to repeated sampling, indirectly be set in the data that can sample in described sampling time section T thus, and be defined as one group of sampled data, one group of sampled data step on described acquisition string pixel coordinate comprises:
Obtain the basic parameter of described monitor: comprise, obtaining on display length W on the sample frequency F of described monitor, the resolution P of described monitor, described monitor display screen and described monitor display screen in the second can the length L of display waveform;
Calculate the sampling number in described monitor one second: go out the pixel number Dot:Dot=L*P/W that can sample within the scope of waveform length L shown within described monitor display screen one second according to the Parameter Calculation of described monitor; And determine according to the sample frequency F of described monitor the sampling number Num.:Num.=F/Dot that a second, signal input unit can receive within the scope of this waveform length L;
Calculate described sampling time section T string pixel coordinate being carried out to 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 within the scope of this waveform length L on string pixel coordinate, and according to determined sampling number N and the described sampling number Num. that a second, signal input unit can receive, calculate described sampling time section T string pixel coordinate being carried out to repeated sampling, its define method is: T=N/Num.;
Obtain M group sampled data on string pixel coordinate: the M group sampled data of adjacent time on acquisition string pixel coordinate, and one group of sampled data of just up-to-date acquisition is defined as current group, wherein M be more than or equal to 1 integer;
Calculate the eigenvalue of described current group of sampled data: by choosing the sampled data in current group, the meansigma methods of the sampled data selected by calculating is as eigenvalue;
By the Color pair in the data on this row pixel coordinate and described monitor display screen should: be the most light tone in described monitor display screen by the color settings of described eigenvalue on this row pixel coordinate, centered by described eigenvalue, color dimmed correspondence is gradually carried out to other data on this row pixel coordinate;
Described color is adopted the data on this row pixel coordinate to be shown on pixel corresponding on described monitor display screen.
2. wave distortion processing method on 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 described current group of sampled data and be defined as the first maximum MaxValue, read the minima in 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: the eigenvalue MidValue calculating described current group of sampled data according to described first maximum MaxValue and described first minimum M inValue, the define method of described eigenvalue MidValue is: MidValue=(MaxValue+MinValue)/2.
3. wave distortion processing method on 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 monitor according to claim 1, is characterized in that, also comprises the steps: before described step of being answered by the Color pair in the data on this row pixel coordinate and described monitor display screen
Read the second maximum All-MaxValue and the second minima All-MinValue of described M group sampled data on described string pixel coordinate: read the maximum in described M group sampled data and be defined as the second maximum All-MaxValue, read the minima in described M group sampled data and be defined as the second minima All-MaxValue;
The define method calculating deviate Dy: the described deviate Dy between the described second maximum All-MaxValue of described M group sampled data and described second minima All-MinValue is: Dy=All-MaxValue – All-MinValue;
Set the scope of data this row pixel coordinate will carried out Color pair and answer: centered by described eigenvalue, with the half of described deviate Dy for distance upwards and downwards this row pixel coordinate of setting being carried out the scope of the data that Color pair is answered.
5. wave distortion processing system on a monitor, for carrying out fidelity process to waveform shown on described monitor, it is characterized in that, comprise as lower module: human-computer interface module, described human-computer interface module carries out the sampling time section T of repeated sampling to string pixel coordinate for setting, to ensure that described sampled data acquisition module can carry out sampled data grouping according to the requirement of user; Described human-computer interface module comprises as lower unit:
Parameter acquiring unit, for obtaining the basic parameter of described monitor: comprise, obtaining on display length W on the sample frequency F of described monitor, the resolution P of described monitor, described monitor display screen and described monitor display screen in the second can the length L of display waveform;
Sampling number computing unit, calculates the sampling number in described monitor one second: go out the pixel number Dot:Dot=L*P/W that can sample within the scope of waveform length L shown within described monitor display screen one second according to the Parameter Calculation of described monitor; And determine according to the sample frequency F of described monitor the sampling number Num.:Num.=F/Dot that a second, signal input unit can receive within the scope of this waveform length L;
Sampling time section computing unit, for calculating described sampling time section T string pixel coordinate being carried out to 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 within the scope of this waveform length L on string pixel coordinate, and according to determined sampling number N and the described sampling number Num. that a second, signal input unit can receive, calculate described sampling time section T string pixel coordinate being carried out to repeated sampling, its define method is: T=N/Num.;
Sampled data acquisition module, for obtaining the M group sampled data of adjacent time on string pixel coordinate, wherein M be more than or equal to 1 integer;
Sampled data computing module, for calculating eigenvalue and the deviate Dy of current group of sampled data, described sampled data computing module reads current group of sampled data of described sampled data acquisition module, and carry out the computing of described eigenvalue, wherein, eigenvalue is the meansigma methods of selected sampled data; Read the described adjacent time M group sampled data of described sampled data acquisition module, and carry out the computing of described deviate Dy, described deviate Dy is the difference of maxima and minima in selected sampled data;
Color computing module, for the Color pair in the data on this row pixel coordinate and described monitor display screen is answered, described color computing module reads the described eigenvalue of described calculation process module, described deviate Dy, and be most light tone by the color settings of described eigenvalue, and centered by described eigenvalue, color dimmed setting or carry out color dimmed setting gradually to other data on this row pixel coordinate in described scope of data is gradually carried out to other data on described row pixel coordinate;
Data on this row pixel coordinate are shown to pixel corresponding on described monitor display screen for adopting described color by screen output module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310233854.XA CN103340600B (en) | 2013-06-13 | 2013-06-13 | Wave distortion processing method and processing system on monitor |
| PCT/CN2013/078101 WO2014198076A1 (en) | 2013-06-13 | 2013-06-27 | Method and system for processing waveform distortion on patient monitors |
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| 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 |
| 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 |
| 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 |
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| CN2223971Y (en) * | 1995-01-25 | 1996-04-10 | 石家庄开发区春立仪器公司 | Bioelectrical recording instrument with heat-sensitive dot-matrix type recorder |
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