CN104270561A - Method for automatically regulating Camera frame rate of mobile terminal and mobile terminal - Google Patents
Method for automatically regulating Camera frame rate of mobile terminal and mobile terminal Download PDFInfo
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Abstract
The invention discloses a method for automatically regulating the Camera frame rate of a mobile terminal and the mobile terminal. The method comprises the following steps: setting a first threshold and a second threshold, comparing a current frame image and an adjacent previous frame image, acquiring a pixel difference quantity, recording the pixel difference quantity, judging whether the pixel difference quantity between any two adjacent images in a time interval before current time is smaller than the first threshold or not when the pixel difference quantity is smaller than the first threshold, and if so, setting the frame rate of a Camera output image as a first frame rate; and when the pixel difference quantity is greater than the second threshold, setting the frame rate of the Camera output image as a second frame rate. According to the mobile terminal disclosed by the invention, a Camera is in a static state if the pixel difference quantity within a certain time interval is smaller than the first threshold, and the frame rate of the Camera output image is set as the first frame rate, so that energy is saved for the mobile terminal. If the pixel difference quantity is greater than the second threshold, the Camera is in a shooting state, and the frame rate of the Camera output image is set as the second frame rate, so that the frame rate of the output image is reduced, and energy is saved for the mobile terminal.
Description
Technical field
The present invention relates to Camera application, in particular mobile terminal regulates method and the mobile terminal of Camera frame per second automatically.
Background technology
Camera has become one of mobile terminal standard configuration, and power consumption and the frame per second of Camera have close relationship, and when other conditions constant, the higher power consumption of frame per second is also higher.
But, in prior art, still do not use the situation of Camera automatically to adjust frame per second to reduce the function of power consumption according to user, as reduced frame per second to reduce power consumption when user claps quiet scape.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide mobile terminal automatically to regulate method and the mobile terminal of Camera frame per second, be intended to solve mobile terminal and automatically can not adjust frame per second to reduce the problem of power consumption.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
Mobile terminal regulates the method for Camera frame per second automatically, wherein, comprises the following steps:
A, pre-set the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, described second frame per second is the frame per second of output image under Camera normal operating conditions, first frame per second is less than the second frame per second, and described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold;
Current frame image in the view data that B, acquisition Camera sense and current time;
C, described current frame image to be compared with adjacent previous frame image, obtain and recording pixel difference number;
D, described pixel difference number to be compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then perform step e; If pixel difference number is greater than Second Threshold, then perform step G;
E, judge current time for the previous period in two arbitrary adjacent images between pixel difference number whether be all less than first threshold, if so, then perform step F;
F, the frame per second of Camera output image is set to the first frame per second;
G, the frame per second of Camera output image is set to the second frame per second.
Described mobile terminal regulates the method for Camera frame per second automatically, and wherein, described step C specifically comprises:
C100, by counter O reset;
C200, compare each pixel of current frame image and adjacent previous frame image successively;
C300, when certain pixel is different, timer adds 1;
C400, to compare, recording pixel difference number.
Described mobile terminal regulates the method for Camera frame per second automatically, and wherein, described certain hour section is 5 seconds.
Described mobile terminal regulates the method for Camera frame per second automatically, and wherein, described step D also comprises:
If pixel difference number is between first threshold and Second Threshold, then Camera is by the frame per second of actual frame per second output image.
Described mobile terminal regulates the method for Camera frame per second automatically, and wherein, described first frame per second is 20Hz; Described second frame per second is 30Hz.
Corresponding with said method, present invention also offers the mobile terminal automatically regulating Camera frame per second, comprising:
Memory module, for pre-setting the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, and described second frame per second is the frame per second of output image under Camera normal operating conditions, and the first frame per second is less than the second frame per second, described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold;
Image and time-obtaining module, for obtaining current frame image in view data that Camera senses and current time;
Adjacent image pixels difference acquisition module, for being compared with adjacent previous frame image by described current frame image, obtains and recording pixel difference number;
Comparison module, for described pixel difference number being compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then starts judge module; If pixel difference number is greater than Second Threshold, then starts the second frame per second and module is set;
Judge module, for judging whether the pixel difference number between the two arbitrary adjacent images that current time is interior for the previous period is all less than first threshold, if so, then starts the first frame per second and arranges module;
First frame per second arranges module, for the frame per second of Camera output image is set to the first frame per second;
Second frame per second arranges module, for the frame per second of Camera output image is set to the second frame per second.
The mobile terminal of described automatic adjustment Camera frame per second, wherein, described adjacent image pixels difference acquisition module specifically comprises:
Cleaning module, for by counter O reset;
Pixel comparison module, for comparing each pixel of current frame image and adjacent previous frame image successively;
Counting module, for when certain pixel is different, timer adds 1;
Logging modle, for having compared, recording pixel difference number.
The mobile terminal of described automatic adjustment Camera frame per second, wherein, described certain hour section is 5 seconds.
The mobile terminal of described automatic adjustment Camera frame per second, wherein, also comprises:
Described pixel difference number compares with first threshold and Second Threshold by comparison module respectively, if pixel difference number is between first threshold and Second Threshold, then start true frame per second setting module, described true frame per second setting module is used for the frame per second of Camera output image to be set to true frame per second.
The mobile terminal of described automatic adjustment Camera frame per second, wherein, described first frame per second is 20Hz; Described second frame per second is 30Hz.
Compared with prior art, mobile terminal provided by the present invention regulates method and the mobile terminal of Camera frame per second automatically, be provided with first threshold and Second Threshold, relatively current frame image and adjacent previous frame image, obtain pixel difference number and record, when pixel difference number is less than first threshold, judge whether the pixel difference number between the two arbitrary adjacent images in current time for the previous period is all less than first threshold, if so, the frame per second of Camera output image is set to the first frame per second; When pixel difference number is greater than Second Threshold, the frame per second of Camera output image is set to the second frame per second.If mobile terminal of the present invention pixel difference number within a period of time is less than first threshold, then shows that Camera remains static, then the frame per second of Camera output image is set to the first frame per second, for mobile terminal is energy-conservation.If pixel difference number is greater than Second Threshold, then show that Camera is in shooting state, the frame per second of Camera output image is set to the second frame per second, reduce the frame per second of output image, for mobile terminal is energy-conservation.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that mobile terminal of the present invention regulates Camera frame per second automatically.
Fig. 2 is the mobile terminal structure figure of automatic adjustment Camera frame per second of the present invention.
Embodiment
The invention provides method and mobile terminal that mobile terminal regulates Camera frame per second automatically, for making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1 Fig. 1 is the method flow diagram that mobile terminal of the present invention regulates Camera frame per second automatically.As shown in Figure 1, mobile terminal of the present invention regulates the method for Camera frame per second automatically, wherein, comprising:
Step 101, pre-set the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, described second frame per second is the frame per second of output image under Camera normal operating conditions, first frame per second is less than the second frame per second, and described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold;
Current frame image in the view data that step 102, acquisition Camera sense and current time; Camera exports to master controller for responding to extraneous image and being translated into digital signal; Main device processed is analyzed the view data that Camera passes over, and image and time-obtaining module obtain its view data passed over from Camera, and time when obtaining image, i.e. current time.
Step 103, described current frame image to be compared with adjacent previous frame image, obtain and recording pixel difference number; After obtaining current frame image, current frame image is compared with adjacent previous frame image, comparison described here refers to the difference of movement images, the difference of image refers to that whether the pixel of correspondence position in two images is identical, when correspondence position pixel is different, counter adds 1, and then obtains pixel difference number.Concrete steps as: first by counter O reset; Then, each pixel of current frame image and adjacent previous frame image is compared successively; When certain pixel is different, timer adds 1; Relatively complete, recording pixel difference number.
Step 104, described pixel difference number to be compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then perform step 106; If pixel difference number is greater than Second Threshold, then perform step 105.First threshold and Second Threshold can be arranged according to mobile terminal display screen resolution and screen size, whether relevant pixel difference number is with the movement of Camera, Camera does not move correspondence and comprises two kinds of situations, one is that Camera does not move, the image in the induction external world does not change, and in this case, nearly all pixel does not change, in theory, pixel difference number is zero; Another is that Camera does not move, and the extraneous image of induction, in continuous change, in this case, has partial pixel change, at this moment pixel difference number between zero and all between pixel count and comprise zero with whole pixel count two ends point value.Camera moves also corresponding two kinds of situations, and one is that Camera moves, the dislocation of display image pixel, and the pixel of any position all changes, and at this moment pixel difference number is maximum, equals the number of pixels of display screen display; Another is that Camera moves, the dislocation of display image pixel, and have the pixel of portion not change or, all do not change, at this moment pixel difference number is less than the number of pixels of display screen display.The first threshold that the present invention is arranged and Second Threshold are between zero number of pixels shown to display screen, and first threshold is less than Second Threshold.Present frame is compared with first threshold and Second Threshold respectively with the pixel difference number of adjacent previous frame image, if pixel difference number is less than first threshold, then performs step 106; If pixel difference number is greater than Second Threshold, then perform step 105.
Step 106, judge current time for the previous period in two arbitrary adjacent images between pixel difference number whether be all less than first threshold, if so, then perform step 107; Pixel difference number between the two arbitrary adjacent images that current time is interior for the previous period, here the time corresponding when current time refers to that current frame image obtains, current time for the previous period in refer to a set time section and the end time of this time period is current time.Step 103 have recorded pixel difference number, then can obtain the pixel difference number between current time two arbitrary adjacent images interior for the previous period, the pixel difference number obtained is judged, if all pixel difference numbers are all less than first threshold in this time period, then performs step 107.It should be noted that, a period of time pre-sets, as being set to 5 seconds, within described a period of time, pixel difference number is all less than first threshold, because first threshold is smaller, then can illustrate that Camera moves, possible user does not operate Camera, then can carry out energy saver mode by control Camera.
Step 107, the frame per second of Camera output image is set to the first frame per second.Frame per second is display frame number per second.First frame per second is the frame per second of output image under Camera low-power consumption operating state.Described first frame per second is 20Hz
Step 105, the frame per second of Camera output image is set to the second frame per second.Described second frame per second is the frame per second of output image under Camera normal operating conditions.Described second frame per second is 30Hz.
As mentioned above, if mobile terminal of the present invention pixel difference number within a period of time is less than first threshold, then shows that Camera remains static, then the frame per second of Camera output image is set to the first frame per second, for mobile terminal is energy-conservation.If pixel difference number is greater than Second Threshold, then show that Camera is in shooting state, the frame per second of Camera output image is set to the second frame per second, reduce the frame per second of output image, for mobile terminal is energy-conservation.
Described mobile terminal regulates the method for Camera frame per second automatically, and preferably, described step D also comprises: if pixel difference number is between first threshold and Second Threshold, then Camera is by the frame per second of actual frame per second output image.When pixel difference number is between first threshold and Second Threshold, then show that the current frame rate of Camera is not very excessive, also not too little, be normal condition, then control Camera is by the frame per second of actual frame per second output image.Here actual frame per second and current frame rate, true frame per second are identical, refer to the frame per second of mobile terminal under acquiescence operating state.
Refer to Fig. 2, Fig. 2 is the mobile terminal structure figure of automatic adjustment Camera frame per second of the present invention.The mobile terminal of automatic adjustment Camera frame per second of the present invention, comprising:
Memory module 207, for pre-setting the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, and described second frame per second is the frame per second of output image under Camera normal operating conditions, first frame per second is less than the second frame per second, described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold, as detailed above;
Image and time-obtaining module 201, for obtaining current frame image in view data that Camera senses and current time, as detailed above;
Adjacent image pixels difference acquisition module 202, for being compared with adjacent previous frame image by described current frame image, obtains and recording pixel difference number, as detailed above;
Comparison module 203, for described pixel difference number being compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then starts judge module; If pixel difference number is greater than Second Threshold, then starts the second frame per second and module is set, as detailed above;
Judge module 206, for judging whether the pixel difference number between the two arbitrary adjacent images that current time is interior for the previous period is all less than first threshold, if so, then starts the first frame per second and arranges module, as detailed above;
First frame per second arranges module 205, for the frame per second of Camera output image is set to the first frame per second, as detailed above;
Second frame per second arranges module 204, for the frame per second of Camera output image is set to the second frame per second, as detailed above.
The mobile terminal of described automatic adjustment Camera frame per second, preferably, described adjacent image pixels difference acquisition module specifically comprises:
Cleaning module, for by counter O reset, as detailed above;
Pixel comparison module, for comparing each pixel of current frame image and adjacent previous frame image successively, as detailed above;
Counting module, for when certain pixel is different, timer adds 1, as detailed above;
Logging modle, for having compared, recording pixel difference number, as detailed above.
The mobile terminal of described automatic adjustment Camera frame per second, preferably, described certain hour section is 5 seconds, as detailed above.
The mobile terminal of described automatic adjustment Camera frame per second, preferably, also comprises:
Described pixel difference number compares with first threshold and Second Threshold by comparison module respectively, if pixel difference number is between first threshold and Second Threshold, then start true frame per second setting module, described true frame per second setting module is used for the frame per second of Camera output image to be set to true frame per second, as detailed above.
The mobile terminal of described automatic adjustment Camera frame per second, preferably, described first frame per second is 20Hz; Described second frame per second is 30Hz, as detailed above.
In sum, mobile terminal provided by the present invention regulates method and the mobile terminal of Camera frame per second automatically, be provided with first threshold and Second Threshold, relatively current frame image and adjacent previous frame image, obtain pixel difference number and record, when pixel difference number is less than first threshold, judge whether the pixel difference number between the two arbitrary adjacent images in current time for the previous period is all less than first threshold, if so, the frame per second of Camera output image is set to the first frame per second; When pixel difference number is greater than Second Threshold, the frame per second of Camera output image is set to the second frame per second.If mobile terminal of the present invention pixel difference number within a period of time is less than first threshold, then shows that Camera remains static, then the frame per second of Camera output image is set to the first frame per second, for mobile terminal is energy-conservation.If pixel difference number is greater than Second Threshold, then show that Camera is in shooting state, the frame per second of Camera output image is set to the second frame per second, reduce the frame per second of output image, for mobile terminal is energy-conservation.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (10)
1. mobile terminal regulates the method for Camera frame per second automatically, it is characterized in that, comprises the following steps:
A, pre-set the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, described second frame per second is the frame per second of output image under Camera normal operating conditions, first frame per second is less than the second frame per second, and described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold;
Current frame image in the view data that B, acquisition Camera sense and current time;
C, described current frame image to be compared with adjacent previous frame image, obtain and recording pixel difference number;
D, described pixel difference number to be compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then perform step e; If pixel difference number is greater than Second Threshold, then perform step G;
E, judge current time for the previous period in two arbitrary adjacent images between pixel difference number whether be all less than first threshold, if so, then perform step F;
F, the frame per second of Camera output image is set to the first frame per second;
G, the frame per second of Camera output image is set to the second frame per second.
2. mobile terminal according to claim 1 regulates the method for Camera frame per second automatically, it is characterized in that, described step C specifically comprises:
C100, by counter O reset;
C200, compare each pixel of current frame image and adjacent previous frame image successively;
C300, when certain pixel is different, timer adds 1;
C400, to compare, recording pixel difference number.
3. mobile terminal according to claim 1 regulates the method for Camera frame per second automatically, it is characterized in that, described a period of time is 5 seconds.
4. mobile terminal according to claim 1 regulates the method for Camera frame per second automatically, it is characterized in that, described step D also comprises:
If pixel difference number is between first threshold and Second Threshold, then Camera is by the frame per second of actual frame per second output image.
5. mobile terminal according to claim 1 regulates the method for Camera frame per second automatically, it is characterized in that,
Described first frame per second is 20Hz; Described second frame per second is 30Hz.
6. automatically regulate the mobile terminal of Camera frame per second, comprise Camera, it is characterized in that, comprising:
Memory module, for pre-setting the first frame per second and the second frame per second, first threshold and Second Threshold, wherein, described first frame per second is the frame per second of output image under Camera low-power consumption operating state, and described second frame per second is the frame per second of output image under Camera normal operating conditions, and the first frame per second is less than the second frame per second, described first threshold and Second Threshold are the number of pixel difference in adjacent two images, and described first threshold is less than Second Threshold;
Image and time-obtaining module, for obtaining current frame image in view data that Camera senses and current time;
Adjacent image pixels difference acquisition module, for being compared with adjacent previous frame image by described current frame image, obtains and recording pixel difference number;
Comparison module, for described pixel difference number being compared with first threshold and Second Threshold respectively, if pixel difference number is less than first threshold, then starts judge module; If pixel difference number is greater than Second Threshold, then starts the second frame per second and module is set;
Judge module, for judging whether the pixel difference number between current time two arbitrary adjacent images for the previous period is all less than first threshold, if so, then starts the first frame per second and arranges module;
First frame per second arranges module, for the frame per second of Camera output image is set to the first frame per second;
Second frame per second arranges module, for the frame per second of Camera output image is set to the second frame per second.
7. the mobile terminal of automatic adjustment Camera frame per second according to claim 6, is characterized in that, described adjacent image pixels difference acquisition module specifically comprises:
Cleaning module, for by counter O reset;
Pixel comparison module, for comparing each pixel of current frame image and adjacent previous frame image successively;
Counting module, for when certain pixel is different, timer adds 1;
Logging modle, for having compared, recording pixel difference number.
8. the mobile terminal of automatic adjustment Camera frame per second according to claim 6, it is characterized in that, described a period of time is 5 seconds.
9. the mobile terminal of automatic adjustment Camera frame per second according to claim 6, is characterized in that, also comprise:
Described pixel difference number compares with first threshold and Second Threshold by comparison module respectively, if pixel difference number is between first threshold and Second Threshold, then start true frame per second setting module, described true frame per second setting module is used for the frame per second of Camera output image to be set to true frame per second.
10. the mobile terminal of automatic adjustment Camera frame per second according to claim 6, is characterized in that,
Described first frame per second is 20Hz; Described second frame per second is 30Hz.
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