CN104021383A - Method and device for identifying functional status of car-mounted multimedia system - Google Patents
Method and device for identifying functional status of car-mounted multimedia system Download PDFInfo
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- CN104021383A CN104021383A CN201410294005.XA CN201410294005A CN104021383A CN 104021383 A CN104021383 A CN 104021383A CN 201410294005 A CN201410294005 A CN 201410294005A CN 104021383 A CN104021383 A CN 104021383A
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Abstract
The invention provides a method for identifying the functional status of a car-mounted multimedia system, and relates to the technical field of car-mounted multimedia systems. The method is implemented by establishing a functional module frame and controlling a computer by computer program commands, wherein the computer program commands are saved in a computer readable storage medium. The method comprises the following steps: acquiring a real-time image currently displayed on the screen of the car-mounted multimedia system; respectively comparing the real-time image and each reference image corresponding to each functional status of the car-mounted multimedia system to respectively obtain similarity between the real-time image and each reference image; determining that the functional status of the car-mounted multimedia system at that time is the corresponding functional status of the reference image which is most similar to the real-time image.
Description
Technical field
The present invention relates to in-vehicle multi-media system technical field, the method, by setting up functional module construction, is controlled computer system by computer program instructions and is completed, and these computer program instructions are stored in computer-readable recording medium.
Background technology
Amusement demand while riding in an automobile for meeting people, many automobiles are equipped with multimedia system, and this multimedia system generally has play CD, FM radio, AUX input and other multimedia functions.In recent years, in order to meet diversified amusement demand, on market, start to have occurred third party's in-vehicle multi-media system, car owner can be according to self need to choosing corresponding third party's in-vehicle multi-media system and being loaded in automobile, and in addition, some navigator also starts integrated multimedia function, to attract car owner to buy, for ease of distinguishing, the original-pack multimedia system of automobile is referred to as to former truck system herein, the original-pack multimedia system of non-automobile is referred to as and adds assembling system.
Due to popularizing of touch control operation mode, many former truck systems also change touch control operation mode into by original physical button mode of operation, and correspondingly, the screen that former truck system is equipped with also changes touch screen into by original non-touch screen.Yet, former truck system with add assembling system and carry out mutual related protocol and also improve accordingly, former truck system for touch screen, owing to not having related protocol to support, add assembling system and cannot know former truck system is specifically in what functional status (functional status herein refers to that CD broadcast state, FM listen to state, AUX input broadcast state and other multimedia function states), bring very large trouble to the interaction design that adds assembling system and former truck system, become the technical bottleneck that research and development add assembling system.
Summary of the invention
For the problems referred to above of prior art, the invention provides a kind of recognition methods of functional status of in-vehicle multi-media system, it can identify the current residing functional status of former truck system in the situation that not having related protocol to support.
For achieving the above object, the invention provides following technical scheme.
The recognition methods of the functional status of in-vehicle multi-media system, comprising:
Image acquisition step: the realtime graphic that obtains the current demonstration of screen of described in-vehicle multi-media system;
Comparison step: compare respectively realtime graphic and each width reference picture of distinguishing each functional status of corresponding described in-vehicle multi-media system, draw respectively the similarity of realtime graphic and described each width reference picture;
Determination step: judge that the current residing functional status of described in-vehicle multi-media system is as functional status corresponding to the reference picture the highest with realtime graphic similarity.
This is technical scheme 1.
Display interface between each functional status of former truck system there are differences, utilize this feature, obtain the image of the current demonstration of screen of former truck system, and it is compared with each width reference picture of each functional status of the corresponding former truck system respectively prestoring respectively, the functional status that the reference picture the highest with its similarity is corresponding is the current residing functional status of former truck system, thereby identify exactly the current residing functional status of former truck system, broken through the above-mentioned technical bottleneck that prior art exists.
According to the recognition methods of the functional status of the in-vehicle multi-media system described in technical scheme 1, comparison step particularly, is only compared the default regional area that described realtime graphic is mutual corresponding with described reference picture.This is technical scheme 2.
According to the recognition methods of the functional status of the in-vehicle multi-media system described in technical scheme 1 or 2, comparison step particularly, obtain the rgb image data of described realtime graphic and described reference picture, choose afterwards the central a kind of color image data of red image data, green image data and blue image data of described realtime graphic and described reference picture and compare.This is technical scheme 3.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
The recognition methods of the functional status of in-vehicle multi-media system of the present invention, each width reference picture of corresponding former each functional status of car respectively that need first prestore, the display interface image of the former truck system that reference picture is intercepting when the functional status corresponding with this reference picture.In the present embodiment, former truck system possesses CD broadcasting, FM radio and AUX input and plays three multimedia functions, and therefore, the reference picture that the present embodiment prestores has three width, and their respectively corresponding CD broadcastings, FM radio and AUX input and play three multimedia functions.
The recognition methods of the functional status of the in-vehicle multi-media system of the present embodiment mainly comprises following three steps.
Step 1, obtains the image of the current demonstration of screen of former truck system, this image is called to realtime graphic herein.
Step 2, realtime graphic is compared with above-mentioned three width reference pictures respectively, draw the similarity, realtime graphic of realtime graphic and the reference picture of corresponding CD playing function and the similarity of the similarity of the reference picture of corresponding FM radio function and the reference picture of realtime graphic and corresponding A UX input playing function.Comparison realtime graphic and reference picture are particularly, first obtain the rgb image data of realtime graphic and the rgb image data of reference picture, then choose the red image data of realtime graphic and the red image data of reference picture is compared, why only choosing the view data of single color compares, be because the capacity of the view data of single color is less, the capacity of data transmission channel is less adds assembling system and also can adopt recognition methods of the present invention to identify the current residing functional status of former truck system.During comparison, only choosing the mutual corresponding default regional area of realtime graphic and reference picture compares, for example only compare the default long and wide rectangular area, the upper right corner of realtime graphic and reference picture, this measure is in order to reduce operand, improve comparison speed, between the display interface of each functional status of former truck system, the image in some region is identical, the image in some region is not identical, choose the region differing greatly and compare as default regional area, can take into account recognition accuracy and the efficiency of recognition methods of the present invention.
Step 3, judge that the current residing functional status of former truck system is as functional status corresponding to the reference picture the highest with realtime graphic similarity, for example realtime graphic is 80% with the similarity of the reference picture of corresponding CD playing function, realtime graphic is 40% with the similarity of the reference picture of corresponding FM radio function, the similarity of the reference picture of realtime graphic and corresponding A UX input playing function is 30%, judge that the current residing functional status of former truck system plays as CD, show that former truck system is just in play CD.
The method providing herein, all or part of step wherein can, by setting up functional module construction, be controlled computer system by computer program instructions and complete.These computer program instructions are stored in computer-readable recording medium.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. the recognition methods of the functional status of in-vehicle multi-media system, is characterized in that, comprising:
Image acquisition step: the realtime graphic that obtains the current demonstration of screen of described in-vehicle multi-media system;
Comparison step: compare respectively realtime graphic and each width reference picture of distinguishing each functional status of corresponding described in-vehicle multi-media system, draw respectively the similarity of realtime graphic and described each width reference picture;
Determination step: judge that the current residing functional status of described in-vehicle multi-media system is as functional status corresponding to the reference picture the highest with realtime graphic similarity.
2. the recognition methods of the functional status of in-vehicle multi-media system according to claim 1, is characterized in that, comparison step particularly, is only compared the default regional area that described realtime graphic is mutual corresponding with described reference picture.
3. the recognition methods of the functional status of in-vehicle multi-media system according to claim 1 and 2, it is characterized in that, comparison step particularly, obtain the rgb image data of described realtime graphic and described reference picture, choose afterwards the central a kind of color image data of red image data, green image data and blue image data of described realtime graphic and described reference picture and compare.
4. the recognition device of the functional status of in-vehicle multi-media system, is characterized in that, comprising:
Image collecting device: the realtime graphic that obtains the current demonstration of screen of described in-vehicle multi-media system;
Comparison device: compare respectively realtime graphic and each width reference picture of distinguishing each functional status of corresponding described in-vehicle multi-media system, draw respectively the similarity of realtime graphic and described each width reference picture;
Decision maker: judge that the current residing functional status of described in-vehicle multi-media system is as functional status corresponding to the reference picture the highest with realtime graphic similarity.
5. the recognition device of the functional status of in-vehicle multi-media system according to claim 4, is characterized in that, comparison device particularly, is only compared the default regional area that described realtime graphic is mutual corresponding with described reference picture.
6. according to the recognition device of the functional status of the in-vehicle multi-media system described in claim 4 or 5, it is characterized in that, comparison device particularly, obtain the rgb image data of described realtime graphic and described reference picture, choose afterwards the central a kind of color image data of red image data, green image data and blue image data of described realtime graphic and described reference picture and compare.
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| CN201410294005.XA CN104021383A (en) | 2014-06-27 | 2014-06-27 | Method and device for identifying functional status of car-mounted multimedia system |
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| WO2014078440A1 (en) * | 2012-11-16 | 2014-05-22 | Canon Kabushiki Kaisha | Devices, systems, and methods for collaborative object verification |
| CN103839259A (en) * | 2014-02-13 | 2014-06-04 | 西安交通大学 | Optimal matching block searching method and device for image |
| CN103886306A (en) * | 2014-04-08 | 2014-06-25 | 山东大学 | Tooth X-ray image matching method based on SURF point matching and RANSAC model estimation |
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- 2014-06-27 CN CN201410294005.XA patent/CN104021383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102915432A (en) * | 2012-09-11 | 2013-02-06 | 北京铁道工程机电技术研究所有限公司 | Method and device for extracting vehicle-bone microcomputer image video data |
| WO2014078440A1 (en) * | 2012-11-16 | 2014-05-22 | Canon Kabushiki Kaisha | Devices, systems, and methods for collaborative object verification |
| CN103839259A (en) * | 2014-02-13 | 2014-06-04 | 西安交通大学 | Optimal matching block searching method and device for image |
| CN103886306A (en) * | 2014-04-08 | 2014-06-25 | 山东大学 | Tooth X-ray image matching method based on SURF point matching and RANSAC model estimation |
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Application publication date: 20140903 |