CN105100785A - Smoothness test method and device - Google Patents
Smoothness test method and device Download PDFInfo
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- CN105100785A CN105100785A CN201410160374.XA CN201410160374A CN105100785A CN 105100785 A CN105100785 A CN 105100785A CN 201410160374 A CN201410160374 A CN 201410160374A CN 105100785 A CN105100785 A CN 105100785A
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Abstract
The invention relates to a smoothness test method and device, and the method and device are used to test the image change smoothness of a mobile terminal. The method comprises that distance between frame images in the image change process is obtained; and the image change smoothness is determined based on the distance between the frame images. The method can be used to accurately test the image change smoothness, and effectively improve the reliability and accuracy of a smoothness test result.
Description
Technical field
The present invention relates to technical field of mobile terminals, particularly relate to a kind of method of testing and device of fluency.
Background technology
Along with the fast development of various intelligent mobile terminal, user uses the frequency of mobile terminal and time also to get more and more, and user is in the process using mobile terminal, and whether mobile terminal system is smooth, become the important indicator that user weighs its performance.
In the process of user operation mobile terminal, the display interface of mobile terminal all can change usually accordingly, to show the result of mobile terminal system response user operation.Such as, when user need to search contact person, note or message registration time, usually all can perform slide, by the content finding user to pay close attention to the slip of list information to contacts list, message list or call record list etc.Perform in the process of slide user, the dynamic menu that mobile terminal meeting display list slides, to respond the operational order of user.
Usually, the dynamic menu of the interface change that we see, be made up of multiframe tableaux, the essence of animation is the characteristic of the persistence of vision utilizing human eye, makes people feel the change of picture, when animation display is more smooth time, the sensation of our human eye can be more comfortable, and user experience also can be better, and if animation display not smooth, occur that card pauses, the phenomenon of shake, the Experience Degree of user will be lower.
Whether smooth operation of the image change of mobile terminal directly affects Consumer's Experience, and whether finally affecting user abandons this application, and therefore fluency performance test has very important realistic meaning for the application of developer's Optimal improvements, raising Consumer's Experience.
Existing mobile platform is tested primarily of tester's manual test for the fluency of the image change of mobile terminal, carries out operating and experiencing, provide whether smooth conclusion according to experience in conjunction with actual user's scene.Although this mode is simple closest to the actual use scenes of user, test result depends primarily on the subjective feeling of tester, therefore reliability and accuracy lower.
Summary of the invention
The problem that what the present invention solved is reliability in fluency test process, accuracy is lower.
For solving the problem, technical solution of the present invention provides a kind of method of testing of fluency, comprising:
Obtain the distance between the two field picture in described image change process;
Based on the distance between described two field picture, determine the fluency of described image change.
Optionally, the distance between described two field picture obtains as follows:
Extract the characteristic area in described two field picture;
By the relative distance of the position of described characteristic area in two different frame two field pictures, be defined as the distance between this two two field picture.
Optionally, described based on the distance between described two field picture, determine that the fluency of described image change comprises: with the amplitude of variation of the distance between described two field picture to assess the fluency of described image change.
Optionally, the distance between described two field picture is the distance between the key frame images in described image change process; Described based on the distance between described two field picture, determine that the fluency of described image change comprises: with the amplitude of variation of the distance between described key frame images to assess the fluency of described image change.
Optionally, adopt the amplitude of variation of the distance between adjacent key frame images to determine the fluency of described image change.
Optionally, adopt the amplitude of variation of the difference of the distance between adjacent key frame images to determine the fluency of described image change.
Optionally, described based on the distance between described two field picture, determine that the fluency of described image change comprises:
Based on the distance between described two field picture, the number of times that in statistical picture change procedure, two field picture pauses;
The relation of the totalframes of the number of times paused based on described two field picture and described image change process, determines the fluency of described image change.
Optionally, the method for testing of described fluency also comprises: the imaging device being more than or equal to 90 two field pictures by shooting frame number per second is taken described image change process, to obtain two field picture.
Optionally, described image change comprises in mobile terminal graphic interface change when performing slide.
Technical solution of the present invention also provides a kind of testing apparatus of fluency, for the fluency of the image change of testing mobile terminal; Comprise:
Acquiring unit, is suitable for obtaining the distance between the two field picture in described image change process;
Determining unit, the distance between being suitable for based on described two field picture, determines the fluency of described image change.
Optionally, described acquiring unit comprises:
Extraction unit, is suitable for extracting the characteristic area in described two field picture;
Metrics calculation unit, is suitable for, by the relative distance of the position of described characteristic area in two different frame two field pictures, being defined as the distance between this two two field picture.
Optionally, the distance between described two field picture is the distance between the key frame images in described image change process, and described determining unit comprises:
First determining unit, is suitable for the distance amplitude of variation determined between adjacent key frame images;
First assessment unit, the distance amplitude of variation between being suitable for described adjacent key frame images is to assess the fluency of described image change.
Optionally, the distance between described two field picture is the distance between the key frame images in described image change process, and described determining unit comprises:
Second determining unit, is suitable for the amplitude of variation of the difference of the distance determined between adjacent key frame images;
Second assessment unit, the amplitude of variation of the difference of the distance between being suitable for described adjacent key frame images is to assess the fluency of described image change.
Optionally, described determining unit comprises:
Statistic unit, is suitable for the number of times that the two field picture in statistical picture change procedure pauses;
3rd assessment unit, is suitable for the relation of the totalframes of number of times and the described image change process of pausing based on described two field picture, determines the fluency of described image change.
Optionally, the testing apparatus of described fluency also comprises: shooting unit, the imaging device being suitable for being more than or equal to by shooting frame number per second 90 two field pictures is taken described image change process, to obtain two field picture.
Compared with prior art, technical scheme of the present invention has the following advantages:
By obtaining the distance between the two field picture in image change process, based on the distance between described two field picture, test the fluency of described image change.The method can the fluency of accurate test pattern change, effectively improves reliability and the accuracy of fluency test result.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for testing of the fluency that technical solution of the present invention provides;
Fig. 2 is the schematic flow sheet of the method for testing of the fluency that one embodiment of the invention provides;
Fig. 3 is the positional information change schematic diagram of the characteristic area that the embodiment of the present invention provides;
Fig. 4 is the amplitude of variation schematic diagram of the distance of the adjacent key frame that the embodiment of the present invention provides;
Fig. 5 is the schematic flow sheet of the method for testing of the fluency that another embodiment of the present invention provides;
Fig. 6 is the amplitude of variation schematic diagram of the difference of the distance of the adjacent key frame that the embodiment of the present invention provides;
Fig. 7 is the schematic flow sheet of the method for testing of the fluency that yet another embodiment of the invention provides;
Fig. 8 is the column schematic diagram of the number of times that the number of times that pauses of the key frame images that provides of the embodiment of the present invention and key frame images are moved;
Fig. 9 is the system schematic of the testing apparatus work of the fluency that the embodiment of the present invention provides;
Figure 10 is the structural representation of the testing apparatus of the fluency that the embodiment of the present invention provides.
Embodiment
In prior art, the fluency that mobile terminal changes for interface is tested primarily of tester's manual test, carries out operating and experiencing, provide whether smooth conclusion according to experience in conjunction with actual user's scene.This mode but test result depend primarily on the subjective feeling of tester, therefore reliability and accuracy lower.
Due to mobile terminal interface change whether smooth for the application of developer's Optimal improvements, improve Consumer's Experience there is very important realistic meaning, therefore how can reliably, to carry out test to the fluency of the image change of mobile terminal be accurately those skilled in the art's problem demanding prompt solutions.
In order to solve the problem, have the fluency method of testing proposed for concrete mobile phone operation platform in prior art, but the method is only confined to concrete mobile phone operation platform, limitation is comparatively large, and implementation procedure is comparatively complicated.
In order to solve reliability in the fluency test process of mobile terminal and the lower problem of accuracy, technical solution of the present invention improves a kind of method of testing of fluency, for the fluency of the image change of testing mobile terminal.
Fig. 1 is the schematic flow sheet of the method for testing of the fluency that technical solution of the present invention provides, and as shown in Figure 1, first performs step S1, obtains the distance between the two field picture in image change process.
When the application program of mobile terminal performs, usually, relevant image change interface can be shown, to show the implementation of described application program accordingly at the display interface of mobile terminal.Such as, the slide of the list items in user mobile phone system, the slide etc. of menu item, mobile terminal can the corresponding display list image change interface of sliding, to respond the operational order of user.If in the process of list slip, the phenomenon having card to pause exists, then the experience of user can be poor.
The fluency method of testing that technical solution of the present invention provides, based on the change of the distance between the two field picture in image change process, can determine the fluency that graphic interface changes.
For the acquisition of the distance between the two field picture in image change process, those skilled in the art can adopt multiple method to obtain, such as, can based on the change of the displacement of the characteristic area in two field picture in image change process, determine the change of the displacement of two field picture, and then determine the distance between the two field picture before and after change.
Perform step S2, based on the distance between described two field picture, determine the fluency of described image change.
Whether image change process is smooth can be determined by the situation of the distance change between two field picture.
Such as, the fluency of evaluate image change can be carried out by the amplitude of variation of the distance between two field picture.Whether image change process is smooth shows that whether the amplitude of variation of the distance in described image change process between two field picture is mild.When image change is more smooth, the change of distance between two field picture is uniform, and if image change is not smooth, when there is the phenomenons such as card, shake in the process of image change, there is larger fluctuating in the distance between two field picture accordingly.
Also the fluency of situation to image change that the number of times can be paused by two field picture in image change process, do not changed is occurred is assessed.When there is card in the process of image change, usual two field picture there will be two continuous frames or the identical situation of continuous multiple frames image information occurs, distance between the two field picture of i.e. adjacent two frames or adjacent multiframe be zero situation occur, the frequency, number of times etc. that can be occurred by this situation are assessed the fluency of image change.
The method of testing of the fluency that technical solution of the present invention provides, based on the distance between described two field picture, tests the fluency of described image change, can the fluency of accurate test pattern change, effectively improves reliability and the accuracy of fluency test result.
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail specific embodiments of the invention below in conjunction with accompanying drawing.
In the present embodiment, consider based on the distance between the two field picture in image change process, when determining the fluency of described image change, need to obtain the distance not between two frame two field pictures in the same time, but because the process of image change may all can last for several seconds, or continue longer displaying time, then at this moment in the number of two field picture that obtains be larger, if to the not two field picture in the same time in image change process, all calculate the distance between two field picture, amount of calculation is larger, consuming time also can be longer.
The two field picture residing for the key operations in image change is referred to due to the key frame in image change process, if the change of the distance between key frame is uniform, then for user, it visually can think that image change process is smooth, and non-key frame or be called transition frames, impact for the fluency of whole change procedure is not very large, user's more attention is the fluency of key frame, so in the present embodiment, can only obtain the distance between the key frame images in image change process, and then based on the amplitude of variation of the distance between key frame images, test the fluency of described image change.
In the present embodiment, the test of the fluency changed for graphic interface when performing slide is in the terminal described, and particularly, adopts the amplitude of variation of the distance between adjacent key frame images to determine the fluency of the image change of mobile phone.
Fig. 2 is the schematic flow sheet of the method for the image change fluency of the testing mobile terminal that the present embodiment provides.
As shown in Figure 2, first perform step S201, obtain the frame image information of image change process.
Can be taken image change process by imaging devices such as high speed cameras, and then based on the acquiring video information frame image information of captured image change process.Such as by the software with playing function frame by frame, described video information can be play, the frame image information in video information can be obtained by this software.
In the process of mobile terminal response user operation, multiple image can be contained in image change process, quick continuous print shows described multiple image to form the effect of image motion, namely seen image altering affect, in order to make image change process more smooth, in mobile terminal system, transmission frame number (FPS, FramesPerSecond) per second is all higher.Such as, in the mobile terminals such as mobile phone, can be the refresh rate transmission frame image of 30 or 60 with FPS.
In the present embodiment, the camera that can be more than or equal to 90 two field pictures by shooting frame number per second is taken image change process when performing slide in mobile phone, with getting frame image information.
Shooting frame number per second is adopted to be more than or equal to the camera of 90 two field pictures in the present embodiment, consider that the transmission frame number FPS per second of usual cell phone system is 60, in order to take each two field picture in image change process, the camera that frame number can be adopted to be more than or equal to 90 two field pictures is taken described image change process, with getting frame image information.
Perform step S202, extract the key frame images in the frame image information of described image change process.
When user performs slide; on mobile phone screen, the corresponding display list of usual meeting carries out the dynamic menu slided; from user clicks screen; to sliding action terminates; many two field pictures are had in captured video information; wherein, the frame that the two field picture etc. that such as hand clicks the two field picture of screen, movement is carried out in list items position changes can be extracted as key frame images.
The extraction of key frame images can adopt such as based on the extracting method of the key frame images of kernel clustering, or the method etc. of the extraction key frame images based on two field picture color characteristic and block movable information, those skilled in the art can adopt the key frame images in the method acquisition image change process of multiple extraction key frame images, do not describe in detail at this.
Perform step S203, obtain the distance between adjacent key frame images.
Can based in image change process, the positional information of the characteristic area in key frame, obtains the distance between key frame images.
For example, as shown in Figure 3, suppose that key frame 1 and key frame 2 are two adjacent frame key frames, when user performs the operation of sliding list from top to bottom, the position of characteristic area Y is changed to the position B in key frame 2 by the position A in key frame 1, then the distance can determining between position A in key frame 2 and position B is the distance between adjacent key frame 1 and key frame 2.
The determination of the characteristic area in two field picture can adopt the detection algorithm in various features region in prior art to carry out, and the defining method of characteristic area does not describe in detail at this.
In the present embodiment, carry out in the process of slide user to list, it is exactly list items in list that described characteristic area can be understood as, such as, and each message registration etc. in call record list.
After determining characteristic area, just can by the relative distance of the position of described characteristic area in two different frame two field pictures, determine the distance between this two two field picture, by the change of the position of characteristic area described in consecutive frame image, determine the distance between described consecutive frame image.In addition, also can after getting two field picture, user directly determines paid close attention to target area by observing, measuring, the distance of namely described characteristic area movement and determine the distance between consecutive frame image.
Can measuring with the software etc. with the virtual chi function measuring screen of the positional information of the characteristic area in two field picture.
By said method, the distance between each adjacent key frame images in captured video information can be obtained.
Perform step S204, adopt the amplitude of variation of the distance between adjacent key frame images to determine the fluency of image change.
If mobile phone is in the process performing slide, the amplitude of variation of the distance between the adjacent key frame images in the video information captured by camera is larger, the change of the distance namely between each adjacent key frame images is uneven, such as, distance between the adjacent key frame images of part is larger, and distance between the adjacent key frame images of part is smaller, then illustrate in the process of image change, there is the phenomenons such as shake, image change is not smooth, if and the distance between each adjacent key frame images is identical substantially, difference is smaller, then illustrate that image change is more smooth.
Fig. 4 is the amplitude of variation schematic diagram of the distance of the adjacent key frame that the present embodiment provides based on experimental data, due to different experiments scene, such as different mobile phone operating systems, different application program of mobile phone, the experimental data of the distance between the key frame images obtained is different, so do not provide concrete experimental data in the present embodiment.
In the diagram, transverse axis represents keyframe sequence, the longitudinal axis represents the distance of adjacent key frame images, as can be seen from Figure 4, when slide just starts, curvilinear motion Amplitude Ratio is larger, namely comparatively greatly, curve is substantially close to smoother state afterwards, this shows for the distance change relative amplitude between initial a few frame key frames, the amplitude of variation of the distance between the adjacent key frame images shown in Fig. 4 is smoother relatively, and this image change process is more smooth.When the process of image change is more smooth, performance curve in the diagram should be that curve rises and decline is all level and smooth, there will not be too large fluctuation.
The method of testing of the fluency for image change during mobile phone execution slide that the present embodiment provides, be different from the fluency method of testing for the image change of mobile terminal in prior art, prior art is primarily of tester's manual test, test result depends primarily on the subjective feeling of tester, and the method for testing of the fluency that the present embodiment provides accurately can determine the fluency of image change based on the amplitude of variation of the distance between adjacent key frame images, effectively improve reliability and the accuracy of fluency test result.
It should be noted that, according to the amplitude of variation of the distance between key frame images adjacent in image change process, the key frame images that amplitude of variation is larger can be determined, also slack place in place's image change can namely be determined, the place organizing the optimization of research staff's finder needs can be helped, slack problem can be solved targetedly based on this information.
In the present embodiment; whether the amplitude of variation test pattern change procedure based on the distance between adjacent key frame images is smooth; in other embodiments; also can test the fluency of amplitude of variation to image change of distance between other two field pictures; and the distance be not limited only between adjacent key frame images; any method based on the distance test image change fluency between two field picture, all belongs to the scope of protection of the invention.
In another embodiment of the invention, the amplitude of variation of the difference of the distance between adjacent key frame images also can be adopted to determine the fluency of described image change.
Because the change speed of the difference of the distance between two field picture can the speed of reaction frame image movement, in two field picture moving process, two field picture accelerates amplitude that is mobile or two field picture deceleration movement all should be smaller, suddenly acceleration or deceleration, capital, to the sensation of user's discomfort, all can have influence on the fluency of image change.
Fig. 5 is the schematic flow sheet of the method for the image change fluency of the testing mobile terminal that another embodiment of the present invention provides.
As shown in Figure 5, first perform step S501, obtain the frame image information of image change process.
Can be taken image change process by imaging devices such as high speed cameras, and then based on the acquiring video information frame image information of captured image change process.
Perform step S502, extract the key frame images in the frame image information of described image change process.
Key frame images is extracted to the video information captured by image change process.
Perform step S503, obtain the distance between adjacent key frame images.
By the change of the position of characteristic area described in consecutive frame image, determine the distance between described consecutive frame image, particularly, by the relative distance between the position of characteristic area in adjacent key frame images, the distance between this adjacent key frame images can be determined.
Step S501 to step S503 please refer to step S201 in above-described embodiment to step S203.
Perform step S504, calculate the difference of the distance between adjacent key frame images.
According to the distance between adjacent key frame images, the difference of the distance between adjacent key frame images can be obtained accordingly.
For example, suppose to extract N frame key frame images altogether to the video information captured by image change process, this can be designated as N1 frame, N2 frame, N3 frame ..., N-1 frame, N frame.
Then can obtain the distance between adjacent key frame images by above-mentioned steps, such as, the distance between N1 frame and N2 frame, can be designated as d
1, the distance d between N2 frame and N3 frame
2, the like, the distance obtained between N-1 frame and N frame is designated as d always
n-1, N-1 distance can be obtained altogether.
The difference of the distance between adjacent key frame images refers to d obtained above
1, d
2, d
3..., d
n-2, d
n-1in difference between adjacent two distances, particularly, can d be obtained
1and d
2between difference, d
2and d
3between difference, until obtain d
n-2and d
n-1between the difference of altogether N-2 distance.
Based on said method, the difference of the distance between adjacent key frame images namely can be obtained.
Perform step S505, adopt the amplitude of variation of the difference of the distance between adjacent key frame images to determine the fluency of image change.
If the amplitude of variation of the difference of the distance between adjacent key frame images is larger, then can determine that image change is more not smooth, if the amplitude of variation of the difference of the distance between adjacent key frame images is relatively milder, then can determine that image change is comparatively smooth.
Fig. 6 is the amplitude of variation schematic diagram of the difference of the distance of the adjacent key frame that the present embodiment provides, and in figure 6, transverse axis represents keyframe sequence, and the longitudinal axis represents the difference of the distance of adjacent key frame images.
As can be seen from Figure 6, when slide just starts, curvilinear motion amplitude is more unstable, and curve is substantially close to more stable state afterwards, the amplitude of variation of the distance between the adjacent key frame images shown in Fig. 6 is relatively more stable relatively, and this image change process is more smooth.In the ideal case, when image change smoothness, curve should be stable as much as possible.
The method of testing of the fluency that the present embodiment provides accurately can determine the fluency of image change based on the amplitude of variation of the difference of the distance between adjacent key frame images, effectively improve reliability and the accuracy of fluency test result.
In one more embodiment of the present invention, the fluency of relation to image change of the number of times that can be paused by two field picture in image change process and the totalframes of described image change process is assessed.
In the present embodiment, the fluency of relation to image change of the key frame totalframes of the number of times that in image change process, key frame images is paused and described image change process is adopted to assess.
Fig. 7 is the schematic flow sheet of the method for testing of the fluency that the present embodiment provides, and as shown in Figure 7, first performs step S701, the number of times that in statistical picture change procedure, key frame images is paused.
Can based on the distance between key frame images, the number of times that in statistical picture change procedure, key frame images is paused.The pause of key frame images can be understood as and refers to that two adjacent frame key frame images are identical, and namely described two adjacent frame key frame images distances do not change, and the distance namely between two frame key frame images is zero.In other embodiments, also can set a distance threshold, when the distance between adjacent key frame images is less than described distance threshold, determine that pausing appears in key frame images.
Particularly, if the distance between two continuous frames key frame images is zero, be called that appearance once pauses the situation of a frame, if the distance between continuous three two field pictures is zero, can be called that appearance once pauses the situation of two frames, the like, can in statistical picture change procedure, there is pause one frame or two frames that pause, or the number of times that the situation of other multiframe of pausing occurs.
Perform step S702, the relation of the number of times paused based on key frame images and the key frame totalframes of image change process, determines the fluency of described image change.
In the present embodiment, key frame can be calculated respectively and to pause the number of times of a frame, and key frame pauses the number of times that situation that the number of times of two frames and key frame pause other multiframe occurs.The relation of the key frame totalframes of the number of times occurred according to various situation and image change process, determines the fluency of described image change.
Usually, in image change process, the pause number of times of a frame or multiframe of key frame is fewer, and in key frame totalframes, the number of times of key frame motion is more, then illustrate that image change is more smooth.The number of times that described key frame moves refers to the number of times that the distance between adjacent key frame images is non-vanishing.The number of times of the number of times that key frame can be paused and key frame motion makes block diagram, and in block diagram, the number of times of key frame motion is more, and the number of times that key frame pauses is fewer, then image change is more smooth.
Fig. 8 is the column schematic diagram of the number of times of the number of times that pauses of the key frame images that provides of the present embodiment and motion.In fig. 8, the number of times that key frame pauses comprises key frame and to pause the number of times of a frame and multiframe, the number of times that namely described key frame pauses be the number of times that pauses of above-mentioned various key frame and.The number of times paused due to key frame is less, and the number of times of key frame motion is more, and the ratio that the key frame of pause accounts for total key frame frame number is very little, so can determine that this image change is more smooth.In other embodiments, also the various situations that key frame pauses can be added up respectively, and then assess based on the fluency of number of times to image change that key frame in various situation pauses.
The method of testing of the fluency for image change during mobile phone execution slide that the present embodiment provides, adopt the fluency of relation to image change of the number of times of key frame images pause and the key frame totalframes of described image change process in image change process to assess, effectively can improve reliability and the accuracy of fluency test result.
Corresponding to the method for testing of above-mentioned fluency, the embodiment of the present invention also provides a kind of testing apparatus of fluency.
The system schematic of the testing apparatus work of fluency as shown in Figure 9, when the fluency of the image change to mobile terminal 30 is tested, can be taken by the image change process of imaging device 20 pairs of mobile terminals 30, and captured video information is outputted in the testing apparatus 10 of fluency, by the testing apparatus 10 of described fluency, to assess the fluency of the image change of mobile terminal 30.
Figure 10 is the structural representation of the testing apparatus of the fluency that the present embodiment provides, and as shown in Figure 10, the testing apparatus 10 of described fluency comprises acquiring unit U11, determining unit U12.
Described acquiring unit U11, is suitable for obtaining the distance between the two field picture in described image change process; Described determining unit U12, the distance between being suitable for based on described two field picture, determines the fluency of described image change.
Described acquiring unit U11 comprises extraction unit U110, metrics calculation unit U111.
Described extraction unit U110, is suitable for extracting the characteristic area in described two field picture; Described metrics calculation unit U111, the relative distance between being suitable for the position of described characteristic area in two different frame two field pictures, is defined as the distance between this two two field picture.
Distance between described two field picture is the distance between the key frame images in described image change process, and described determining unit U12 comprises: the first determining unit U120, the first assessment unit U121.
Described first determining unit U120, is suitable for the distance amplitude of variation determined between adjacent key frame images; Described first assessment unit U121, the distance amplitude of variation between being suitable for described adjacent key frame images is to assess the fluency of described image change.
Described determining unit U12 can also comprise: the second determining unit U122, the second assessment unit U123.
Described second determining unit U122, is suitable for the amplitude of variation of the difference of the distance determined between adjacent key frame images; Described second assessment unit U123, the amplitude of variation of the difference of the distance between being suitable for described adjacent key frame images is to assess the fluency of described image change.
Described determining unit U12 can also comprise: statistic unit U124, the 3rd assessment unit U125.
Described statistic unit U124, is suitable for the number of times that the two field picture in statistical picture change procedure pauses; Described 3rd assessment unit U125, is suitable for the relation of the totalframes of number of times and the described image change process of pausing based on described two field picture, determines the fluency of described image change.
It should be noted that, described imaging device 20 can refer to that shooting frame number per second is more than or equal to the imaging device of 90 two field pictures, is taken, can obtain the two field picture in image change process by described imaging device 20 to described image change process.
In other embodiments, in the system schematic of the testing apparatus work of fluency illustrated in fig. 9, also described imaging device 20 can not be comprised, but in the testing apparatus 10 of described fluency, be provided with corresponding shooting unit (not shown), the imaging device that described shooting unit is suitable for being more than or equal to by shooting frame number per second 90 two field pictures is taken described image change process, to obtain two field picture.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (15)
1. a method of testing for fluency, for the fluency of the image change of testing mobile terminal; It is characterized in that, comprising:
Obtain the distance between the two field picture in described image change process;
Based on the distance between described two field picture, determine the fluency of described image change.
2. the method for testing of fluency as claimed in claim 1, it is characterized in that, the distance between described two field picture obtains as follows:
Extract the characteristic area in described two field picture;
By the relative distance of the position of described characteristic area in two different frame two field pictures, be defined as the distance between this two two field picture.
3. the method for testing of fluency as claimed in claim 1, is characterized in that, described based on the distance between described two field picture, determines that the fluency of described image change comprises:
The fluency of described image change is assessed with the amplitude of variation of the distance between described two field picture.
4. the method for testing of fluency as claimed in claim 1, it is characterized in that, the distance between described two field picture is the distance between the key frame images in described image change process; Described based on the distance between described two field picture, determine that the fluency of described image change comprises:
The fluency of described image change is assessed with the amplitude of variation of the distance between described key frame images.
5. the method for testing of fluency as claimed in claim 4, is characterized in that, adopt the amplitude of variation of the distance between adjacent key frame images to determine the fluency of described image change.
6. the method for testing of fluency as claimed in claim 4, is characterized in that, adopt the amplitude of variation of the difference of the distance between adjacent key frame images to determine the fluency of described image change.
7. the method for testing of fluency as claimed in claim 1, is characterized in that, described based on the distance between described two field picture, determines that the fluency of described image change comprises:
Based on the distance between described two field picture, the number of times that in statistical picture change procedure, two field picture pauses;
The relation of the totalframes of the number of times paused based on described two field picture and described image change process, determines the fluency of described image change.
8. the method for testing of fluency as claimed in claim 1, is characterized in that, also comprise: the imaging device being more than or equal to 90 two field pictures by shooting frame number per second is taken, to obtain two field picture described image change process.
9. the method for testing of fluency as claimed in claim 1, is characterized in that, described image change comprises in mobile terminal graphic interface change when performing slide.
10. a testing apparatus for fluency, for the fluency of the image change of testing mobile terminal; It is characterized in that, comprising:
Acquiring unit, is suitable for obtaining the distance between the two field picture in described image change process;
Determining unit, the distance between being suitable for based on described two field picture, determines the fluency of described image change.
The testing apparatus of 11. fluency as claimed in claim 10, it is characterized in that, described acquiring unit comprises:
Extraction unit, is suitable for extracting the characteristic area in described two field picture;
Metrics calculation unit, is suitable for, by the relative distance of the position of described characteristic area in two different frame two field pictures, being defined as the distance between this two two field picture.
The testing apparatus of 12. fluency as claimed in claim 10, it is characterized in that, the distance between described two field picture is the distance between the key frame images in described image change process, and described determining unit comprises:
First determining unit, is suitable for the distance amplitude of variation determined between adjacent key frame images;
First assessment unit, the distance amplitude of variation between being suitable for described adjacent key frame images is to assess the fluency of described image change.
The testing apparatus of 13. fluency as claimed in claim 10, it is characterized in that, the distance between described two field picture is the distance between the key frame images in described image change process, and described determining unit comprises:
Second determining unit, is suitable for the amplitude of variation of the difference of the distance determined between adjacent key frame images;
Second assessment unit, the amplitude of variation of the difference of the distance between being suitable for described adjacent key frame images is to assess the fluency of described image change.
The testing apparatus of 14. fluency as claimed in claim 10, it is characterized in that, described determining unit comprises:
Statistic unit, is suitable for the number of times that the two field picture in statistical picture change procedure pauses;
3rd assessment unit, is suitable for the relation of the totalframes of number of times and the described image change process of pausing based on described two field picture, determines the fluency of described image change.
The testing apparatus of 15. fluency as claimed in claim 10, is characterized in that, also comprise: shooting unit, the imaging device being suitable for being more than or equal to by shooting frame number per second 90 two field pictures is taken described image change process, to obtain two field picture.
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Application publication date: 20151125 |