CN104301484A - Method for showing mobile phone program change process - Google Patents
Method for showing mobile phone program change process Download PDFInfo
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- CN104301484A CN104301484A CN201410578782.7A CN201410578782A CN104301484A CN 104301484 A CN104301484 A CN 104301484A CN 201410578782 A CN201410578782 A CN 201410578782A CN 104301484 A CN104301484 A CN 104301484A
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000013459 approach Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention provides a method for showing the mobile phone program change process. The method for showing the mobile phone program change process comprises the following steps that a testing system is established, wherein the testing system comprises a mobile phone to be tested, a high-frame-rate shooting device and a mobile phone control device, the mobile phone is arranged in the direction opposite to the shooting device, and the mobile phone control device is used for triggering start and running of programs; a camera is calibrated before testing so that distortion of an image is reduced; key frames of mobile phone program changes are selected. By the adoption of the method for showing the mobile phone program change process, the mobile phone program change process is shown by selecting the key frames, the key frames are obtained by selecting stable frames and change frames in program change, it can be guaranteed that program changes can be scientifically and accurately shown by the mobile phone, the method is simple and easy to implement, selection is accurate, effective showing data can be obtained, a satisfactory effect can be achieved, and an accurate basis is provided for evaluation of the program running states of smart phones.
Description
Technical field
The invention belongs to mobile phone test field, particularly relate to a kind of method of showing handset program change procedure.
Background technology
At present, smart mobile phone almost becomes article indispensable in people's life, and the performance of smart mobile phone is also subject to people and more and more pays close attention to, wherein, as one of important performance, the program of smart mobile phone is run, and is the important measure index that people weigh handset capability.
Show that the program of smart mobile phone is run to need to be cashed by image, but program is run and the stable moment is difficult to accurately determine with instrument, often cannot meet the demands, the displaying frame chosen also and improper, and have impact on the postitallation evaluation to handset program to a certain extent.
Summary of the invention
The problem to be solved in the present invention is a kind of method of showing handset program change procedure of design, can show the running of handset program accurately.
In order to achieve the above object, the technical scheme that the present invention takes is: a kind of method of showing handset program change procedure, is characterized in that, comprise the steps:
(1) test macro builds, and comprise mobile phone to be measured, high frame per second camera head, described mobile phone is placed in the just right direction of camera head; Also comprise mobile phone control appliance, in order to trigger start-up and operation;
(2) need to demarcate camera, to reduce the distortion of image before test;
(3) key frame of handset program change is chosen.
Preferably, the distance of mobile phone described in described step (1) and described high frame per second camera head is 25cm.
Preferably, the method for demarcating in described step (2), needs to use scaling board, allows scaling board carry out sectional drawing in the regional that camera can photograph.Then calculate each angle point photographed according to image, in conjunction with the perspective distortion formula of camera, matching is carried out to Parameters in Formula, obtain final distortion parameter.Its parameter is utilized finally to correct the image photographed, as follow-up pending image.
Further, described scaling board is the scaling board of 8*11 angle point.
Preferably, the key frame chosen in described step (3) comprises stabilizer frame and changing frame.
Further, the choosing method of described stabilizer frame is:
First setting threshold value n is needed;
Secondly present image and rear n two field picture are compared, when image does not all change, be defined as stabilizer frame.
Further, the choosing method of described changing frame is:
First setting threshold value n is needed;
Secondly present image and front n two field picture are compared, when image exists change, candidate change frame can be entered.
Whether the 3rd utilizes the method for connected domain to determine whether noise, if not noise, then change between n image before judging, if not change, be then all inactive state before illustrating, such present image is then changing frame.
Further, whether be: judged by the mode of connected domain if being the determination methods of noise; Obtain the connected domain component of image, compare the point set number in each component, if point set is less than the threshold value of setting, be then the impact that noise causes, otherwise be image change.
Further, described frame adopts frame difference method with comparing between frame, and the threshold value that both changes are greater than setting then image changes.
The present invention is by choosing key frame, show the process of handset program change, and key frame is by choosing stabilizer frame in change of program and changing frame realizes, mobile phone science, presentation program change accurately can be ensured, the method is simple, chooses accurately, can obtain effective display data, obtain satisfied effect, foundation is accurately provided to the running state of programs evaluation and test of smart mobile phone.
Accompanying drawing explanation
Fig. 1 is the structural representation that test macro builds.
Fig. 2 is scaling board schematic diagram.
Fig. 3 is the flow chart choosing stabilizer frame.
Fig. 4 is the flow chart choosing changing frame.
Wherein: 101, video camera; 102, mobile phone; 103, mobile phone control appliance.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
One, system constructing
The testing mobile phone reaction time comprises the reaction time such as the start-up time of test program, the time arriving certain specified icons position, handset switch key and side switch.Herein to explain the start-up time of mobile phone Program, but be not limited to start-up time.Need the camera of a high frame per second for taking the overall process of handset starting in this programme, as shown in Figure 1, wherein 101 represent cameras, are placed in the top of mobile phone, and 102 are right against camera for mobile phone.In order to improve picture quality and reduce the impact of external light source, light shield can be added.In figure, 103 is mobile phone control appliance, in order to trigger start-up and operation.
Two, preliminary treatment
Need before test to demarcate camera, to reduce the distortion of image.In calibration process, need to use scaling board, according to the distance (being greater than for 25cm) of camera and mobile phone, select the scaling board of 8*11 angle point herein, as shown in Figure 2.In actual mechanical process, scaling board is allowed to carry out sectional drawing in the regional that camera can photograph.Then calculate each angle point photographed according to image, in conjunction with the perspective distortion formula of camera, matching is carried out to Parameters in Formula, obtain final distortion parameter.Its parameter is utilized finally to correct the image photographed, as follow-up pending image.
Three, key frame is calculated
Calculate key frame to be used for showing to user the process that handset program changes.Key frame comprises stabilizer frame, current frame image when namely moving to static, and changing frame, namely from the current frame image of static firm motion.
The concrete computational process of calculation stability frame as shown in Figure 3.
First program needs setting threshold value n, when n two field picture does not change, can think that image is stable state.Such present image and rear n two field picture compare, and concrete comparative approach can utilize frames differencing method.When image does not all change, stabilizer frame can be defined as.
The value of the threshold value n of calculation stability frame is chosen for 5.
Calculate the concrete computational process of changing frame as shown in Figure 4.
First program needs setting threshold value n, when present image changes compared with front n two field picture, then can think that this frame also exists change.Such present image and front n two field picture compare, and concrete comparative approach can utilize frames differencing method.When image exists change, candidate change frame can be entered.Whether the method for recycling connected domain determines whether noise, if not noise, then change between n image before judging, if not change, be then all inactive state before illustrating, such present image is then changing frame.
The value calculating the threshold value n of changing frame is chosen for 5.
Wherein, whether be: judged by the mode of connected domain if being the determination methods of noise; Obtain the connected domain component of image, compare the point set number in each component, if point set is less than the threshold value (threshold value set is 10) of setting here, is then the impact that noise causes, otherwise is image change.
Frame described above adopts frame difference method with comparing between frame, and the threshold value (this threshold value is set as 5) that both changes are greater than setting then image changes.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (9)
1. show a method for handset program change procedure, it is characterized in that, comprise the steps:
(1) test macro builds, and comprise mobile phone to be measured, high frame per second camera head, described mobile phone is placed in the just right direction of camera head; Also comprise mobile phone control appliance, in order to trigger start-up and operation;
(2) need to demarcate camera, to reduce the distortion of image before test;
(3) key frame of handset program change is chosen.
2. a kind of method of showing handset program change procedure according to claim 1, is characterized in that, the distance of mobile phone described in described step (1) and described high frame per second camera head is 25cm.
3. a kind of method of showing handset program change procedure according to claim 1, is characterized in that, the method for demarcating in described step (2), needs to use scaling board, allows scaling board carry out sectional drawing in the regional that camera can photograph.Then calculate each angle point photographed according to image, in conjunction with the perspective distortion formula of camera, matching is carried out to Parameters in Formula, obtain final distortion parameter.Its parameter is utilized finally to correct the image photographed, as follow-up pending image.
4. a kind of method of showing handset program change procedure according to claim 3, is characterized in that, described scaling board is the scaling board of 8*11 angle point.
5. a kind of method of showing handset program change procedure according to claim 1, is characterized in that, the key frame chosen in described step (3) comprises stabilizer frame and changing frame.
6. a kind of method of showing handset program change procedure according to claim 5, is characterized in that, the choosing method of described stabilizer frame is:
First setting threshold value n is needed;
Secondly present image and rear n two field picture are compared, when image does not all change, be defined as stabilizer frame.
7. a kind of method of showing handset program change procedure according to claim 5, is characterized in that, the choosing method of described changing frame is:
First setting threshold value n is needed;
Secondly present image and front n two field picture are compared, when image exists change, candidate change frame can be entered;
Whether the 3rd utilizes the method for connected domain to determine whether noise, if not noise, then change between n image before judging, if not change, be then all inactive state before illustrating, such present image is then changing frame.
8. whether a kind of method of showing handset program change procedure according to claim 7, is characterized in that, be that the determination methods of noise is: judged by the mode of connected domain; Obtain the connected domain component of image, compare the point set number in each component, if point set is less than the threshold value of setting, be then the impact that noise causes, otherwise be image change.
9. a kind of method of showing handset program change procedure according to claim 6 or 7, is characterized in that, described frame adopts frame difference method with comparing between frame, and the threshold value that both changes are greater than setting then image changes.
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| CN201410578782.7A CN104301484B (en) | 2014-10-24 | 2014-10-24 | The method for showing handset program change procedure |
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| CN104616312A (en) * | 2015-02-15 | 2015-05-13 | 易测智能科技（天津）有限公司 | Method for displaying mobile phone program change process |
| CN104639714A (en) * | 2015-02-15 | 2015-05-20 | 易测智能科技（天津）有限公司 | Test method of mobile phone response time |
| CN107040744A (en) * | 2015-11-20 | 2017-08-11 | 晶睿通讯股份有限公司 | Video file playback system capable of previewing picture, method thereof and computer program product |
| CN107798297A (en) * | 2017-09-28 | 2018-03-13 | 成都大熊智能科技有限责任公司 | A kind of method that stabilizer frame is automatically extracted based on inter-frame difference |
| CN108021319A (en) * | 2017-12-07 | 2018-05-11 | 北京小米移动软件有限公司 | The method and apparatus of smart machine on probation |
| CN109359048A (en) * | 2018-11-02 | 2019-02-19 | 北京奇虎科技有限公司 | A kind of method, apparatus and electronic equipment generating test report |
| CN112087569A (en) * | 2019-06-12 | 2020-12-15 | 杭州萤石软件有限公司 | Camera and camera starting method and device |
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| CN107040744B (en) * | 2015-11-20 | 2020-02-07 | 晶睿通讯股份有限公司 | Video file playback system capable of previewing picture, method thereof and computer program product |
| CN107798297A (en) * | 2017-09-28 | 2018-03-13 | 成都大熊智能科技有限责任公司 | A kind of method that stabilizer frame is automatically extracted based on inter-frame difference |
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