CN1622599A - Computer pick-up head for implementing specific effect processing of dynamic image and method thereof - Google Patents
Computer pick-up head for implementing specific effect processing of dynamic image and method thereof Download PDFInfo
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Abstract
The computerized video camera for specific treatment of dynamic image includes sensor for image acquisition, digital signal processing chip for compressing image datan and WDM driving module, and the WDM driving module include image processing irrelative module and image processing relative module with decompressing unit and format converting unit. The key point is that the WDM driving module includes also specific effect processing module set between the decompressing unit and the format converting unit to perform specific effect processing on the image information decompressed into YUV format and to output the specific effect processed image to the format converting unit. The present invention also discloses the specific effect processing method of dynamic image. The present invention makes it possible to complete specific effect processing of image while obtain video flow with computerized video camera.
Description
Technical field
The present invention relates to image processing techniques, refer to a kind of computer camera (PC Camera) and method that realizes the dynamic image special effect processing especially.
Background technology
Along with the develop rapidly of multimedia technology and video electronic product with popularize, the application of PC Camera more and more widely, PC Camera is the changeable intelligent camera of a kind of microminiature profile, can be used in notebook computer, automobile, security system and the multiple image processing equipment.Present PC Camera mainly can realize normal video flowing demonstration and catch normal still image, have USB interface; Certainly, implanted microphone among the PC Camera that also has, sound is combined with image.
Fig. 1 has provided the basic functional principle schematic diagram that PC Camera handles image in the prior art, and the WDM driver module among Fig. 1 meets the Windows driver mode, supports plug and play, power management and form management regulation (WMI) technology.In actual applications, comprise a lot of functional modules in the WDM driver module, transmit control and property pages interface or the like as power management, equipment plug, Remote Wake Up, USB band width configuration, ISO transmission control, interruption (Interrupt) transmission control, BULK transmission control, Control, in ISO transmission control, further comprise unit such as image decompressor and image format conversion again.Angle from image processing, can will be referred to as the irrelevant module of image processing, and the module relevant with image processing such as decompression unit, format conversion unit are referred to as the image processing correlation module with the irrelevant module of image processing such as power management, equipment plug, Remote Wake Up, USB band width configuration or the like.
As can be seen from Figure 1, PC Camera of the prior art mainly comprises the transducer that is used for images acquired, view data is compressed the digital signal processing chip (DSP) of processing and as the WDM driver module of core processing module, this WDM driver module is positioned at the Drive Layer of PC, comprise irrelevant module of image processing and image processing correlation module, because the application relates generally to treatment of picture, so only demonstrate the image processing correlation module in the WDM driver module of Fig. 1, specifically comprise image decompressor unit and image format conversion unit.Among Fig. 1, transducer links to each other with the interface (SIF) of multimedia digital process chip by transducer with dsp chip, and DSP and WDM module be by USB (USB) interface transmission data, and view data all is that the ISO passage by USB transmits.
As shown in Figure 1, the basic process that PC Camera handles image in the prior art is: PCCamera receives image information by the imageing sensor (Sensor) of self earlier; Send the image information that is received to DSP by the SIF interface again, image information is compressed, general boil down to jpeg format by DSP; Image information after will compressing via USB interface then is sent to the WDM driver module, finish decompression by the decompression unit in the WDM driver module to image information, usually the image information decompress(ion) is condensed to yuv format, require and the picture size requirement according to different output formats again, the image information after decompressing is changed accordingly; At last satisfactory image information output is browsed for the user or caught interface by still image and export.Here, described YUV is a kind of colour coding method, is mainly used in the transmission of optimizing colour-video signal, and wherein, Y represents lightness, just the GTG value; U and V represent colourity, and effect is color and a saturation of describing image, is used to specify color of pixel.
In present PC Camera, seek out the image of special display effect such as anaglyph, base plate results, mainly rely on some image processing softwares such as Photoshop etc. and carry out post-processed and obtain.That is to say that the image of the process call format of every output being changed by image processing software carries out special effect processing respectively.Like this, the post-processed of image processing software can only be handled one by one to individual still image substantially, and can not carry out whole special effect processing to whole video stream, and, need carry out different processing at different picture formats, have certain limitation and hysteresis.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of computer camera of realizing the dynamic image special effect processing, can directly export the video flowing through special effect processing.
Another object of the present invention is to provide a kind of method that realizes the dynamic image special effect processing, make computer camera when obtaining video flowing, just can finish the special effect processing of image.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of computer camera of realizing the dynamic image special effect processing, comprise: be used for images acquired transducer, view data is compressed digital signal processing chip, the WDM driver module of processing, described WDM driver module comprises the irrelevant module of image processing and contains the image processing correlation module of decompression unit and format conversion unit; Key is that described WDM driver module also comprises:
Special efficacy processing module is arranged between decompression unit and the format conversion unit, and the image information that is used for decompress(ion) is condensed to yuv format is carried out special effect processing, will export to format conversion unit through the image information of special effect processing again.
Wherein, preserve the algorithm of corresponding different special effect processing modes in the described special efficacy processing module.Or preserve the corresponding relation of different special effect processing modes and different Y, U, V value in the described special efficacy processing module.
The present invention also provides a kind of method that realizes the dynamic image special effect processing, comprising: select to determine the required special effect processing mode of user, this method may further comprise the steps:
A. computer camera compresses the current image information that collects, and the image information decompress(ion) after will compressing again is condensed to yuv format;
B. the image information of the described yuv format of step a is carried out special effect processing according to the special effect processing mode of selecting to determine;
C. will carry out corresponding format conversion and export then through the image information of special effect processing according to different output formats and picture size requirement.
Wherein, described special effect processing mode is base plate results or black and white effect or anaglyph or sepia effect or color gamut setting or fives' a combination in any.
In the such scheme, step b is described to carry out special effect processing according to the special effect processing mode of select determining and is specially: according to the special effect processing mode of selecting to determine, Y, U, the V value of each pixel of receiving image are carried out conversion or calculating.
In the such scheme, described selection determines that the required special effect processing mode of user is: select to determine more than one special effect processing modes.Described selection determines that the required special effect processing mode of user is specially: the user sets interface by attribute in the Video Applications software and opens property pages, by property pages the special effect processing mode is set.
This method further comprises: the algorithm of storing corresponding different special effect processing modes in advance in computer camera.
This method further comprises: the corresponding relation of storage different special effect processing modes and different Y, U, V value in computer camera in advance.
The computer camera and the method for realization dynamic image special effect processing provided by the present invention, in the WDM driver module, realize special effect processing to image, make PC that Camera is when obtaining video flowing, just can carry out different special effect processing according to user's demand, the video flowing that makes the user directly obtain having special-effect, the present invention has following advantage and characteristics:
1) the present invention has only increased a functional unit and a corresponding attribute that carries out special effect processing interface has been set in original WDM driver module, need not carry out any modification to other parts, therefore, and convenient and easy, highly versatile, and do not increase hardware cost.
2) special effect processing of the present invention was carried out in the YUV stage, only at YUV form, can easily the image through special effect processing be changed into other picture format, as RGB24, I420 or the like, needn't carry out different processing at different picture formats, simplify the complexity of handling, save the amount of redundancy of program greatly.
3) computer camera of the present invention is finished the special effect processing of image in Drive Layer, and the image of the required special display effect of user can directly be provided to the user, has not only enriched the display mode of video flowing, and, for the user provides more convenience.
4) the present invention finishes the special effect processing of image in Drive Layer, can carry out unified special effect processing to the video flowing of current collection, therefore, can provide the stream of the dynamic video with special display effect to the user, can provide still image to the user again, expand the function of computer camera with special-effect.
5) the present invention is directed to the algorithm or the treatment step of special effect processing, only need by Y, U, V value are changed or calculated and can finish, not only algorithm is simple, saves cpu resource, and reduced image information loss in the format conversion process, reach good visual effect.
6) special effect processing of the present invention can provide the processing of multiple special display effect, realizes simple and conveniently, practical satisfying different requirements of customers flexibly, has certain innovation and practicality.
Description of drawings
Fig. 1 carries out the basic functional principle schematic diagram of image processing for PC Camera in the prior art;
Fig. 2 is the composition structural representation of PC Camera of the present invention;
Fig. 3 is the realization principle schematic of picture browsing and image attributes setting;
Fig. 4 carries out the basic functional principle schematic diagram of image processing for PC Camera among the present invention;
Fig. 5 is the realization flow figure of the inventive method.
Embodiment
Core concept of the present invention is: increase the special effect processing unit in the WDM driver module, the image that has yuv format after decompressing is carried out special effect processing earlier, afterwards, by the form and the size of customer requirements the image information through special effect processing is changed again, made PC Camera that the image of process special effect processing can directly be provided to the user.Here, described special effect processing is meant the processing that obtains special display effect video flowing.
As shown in Figure 2, the present invention has increased the special effect processing unit in the WDM driver module, the decompress(ion) that this special effect processing unit is exported decompression unit is condensed to the image information of yuv format and carries out special effect processing according to user's request, and will deliver to format conversion unit through the image information of special effect processing and finish follow-up format conversion processing.Here, the irrelevant module of the same not shown image processing of the WDM driver module among Fig. 2.Specifically, to image information carry out special effect processing be by different Y, U are set, the V value realizes, the display effect that different Y, U, V value are corresponding different.The user can be in advance with Y, U, the V value of various display effect correspondences, and the correspondence setting of different Y, U, V value and different display effects and being stored in the special effect processing unit.
Before images acquired or in the image acquisition process, the user selects needed display effect promptly to determine the special effect processing mode by property pages; After selection information inputed to the special effect processing unit, the display effect that the special effect processing unit can be selected according to the user, and the corresponding relation of the display effect of self storage and Y, U, V value were obtained Y, U, the V value of user-selected display effect correspondence; Then, Y, the U, the V value that current decompress(ion) are condensed to each pixel in the image information of yuv format according to the Y that is obtained, U, V value are handled one by one, so, and the video flowing that just can obtain having the required special display effect of user.Here, described property pages is actual to be exactly a page of selecting, being provided with that offers the user, and usually, this property pages can be shown to the user by computer screen, and the user selects accordingly, is provided with according to the needs of oneself.
Fig. 3 is the specific implementation principle schematic of picture browsing and image attributes setting, referring to Fig. 3, the process of picture browsing is: at first the Video Applications software (Vedio application) by application layer sends out the stream order to the WDM driver module, response after the WDM driver module receives orders, and begin to carry out image data acquiring by USB interface control DSP start sensor, send the view data that obtains to Video Applications software by the WDM driver module again, be shown to the user.
As shown in Figure 3, the detailed process and the principle of carrying out the image attributes setting are: the user opens property pages (Property page) and carries out the setting of various image attributes by the com interface of attribute setting (filter property) in the Video Applications software.Wherein, property pages is a com component, has standard interface.
Property pages is set interface by self and WDM driver module with corresponding attribute, send the WDM driver module to, the WDM driver module will be handled accordingly according to the attribute that sets, such as: according to the special effect processing mode that sets image information is carried out special effect processing; Simultaneously, property pages also can obtain current attribute from the WDM driver module and set situation.Because the corresponding different attribute of different attributes is provided with interface, for the present invention, the special effect processing mode is the image attributes that increases newly, and is corresponding, and the attribute that needs to increase corresponding special effect processing mode is provided with interface.
Described special effect processing is exactly specifically: for the black and white effect, be that the Y in the yuv format is remained unchanged, U=V=0 can obtain the video image of black and white effect; For base plate results, be with the Y=255-Y in the yuv format, U=-U, V=-V can obtain the video image of base plate results; For the sepia effect, be that the Y in the yuv format is remained unchanged, U=-20, V=30 can obtain the video image of sepia effect; For anaglyph, be with the U=V=0 in the yuv format, Y (m, n)=Y (m, n)-(m+2 n+2), can obtain the video image of anaglyph to Y; Limiting for Color Range, is that the Y in the yuv format is remained unchanged, and simultaneously the span of U and V is set, and the assignment that exceeds setting range is 0.Handle through these, the user just can select the dominant hue of video image according to the hobby of oneself.
Specific implementation for special effect processing, also the processing of finishing different display effects can be formed independently algorithm respectively, the corresponding corresponding algorithm of the processing of above-mentioned every kind of display effect, multiple display effect corresponding algorithm can and be deposited, the user is combination selection simultaneously, then the special effect processing unit is as long as handle successively, such as: the user selects black and white effect and anaglyph, then Y, U, the V value transform of black and white effect correspondence finished as long as carry out black and white effect corresponding algorithm successively in the special effect processing unit; And carry out the anaglyph corresponding algorithm, and finishing Y, U, the V value transform of anaglyph correspondence, need not limit as for carrying out sequencing.
As shown in Figure 4, the basic process that PC Camera handles image among the present invention is: PCCamera receives image information by the imageing sensor of self earlier; Send the image information that is received to DSP by the SIF interface again, image information is compressed by DSP; Image information after will compressing via USB interface then is sent to the WDM driver module, by the decompression unit in the WDM driver module image information decompress(ion) is condensed to yuv format; Afterwards, the image information that decompress(ion) is condensed to yuv format by the special effect processing unit is carried out special effect processing according to user's request; To deliver to format conversion unit through the image information of special effect processing again, and require to change accordingly according to different output format requirements and picture size; At last satisfactory image information output is browsed for the user or caught interface by still image and export.That is to say that PC Camera of the present invention can provide the stream of the dynamic video with the required special display effect of user to the user, also can provide the still image with the required special display effect of user.
Referring to Fig. 4 and shown in Figure 5, the present invention realizes that the method for dynamic image special effect processing may further comprise the steps:
In this step, the image information collection is generally finished by imageing sensor, compression to image information is finished by DSP usually, the image information decompress(ion) that compresses is condensed to yuv format generally to be finished by the decompression unit of WDM driver module, concrete process of how to carry out compression and decompression, belong to prior art, do not repeat them here.
Step 503: the image information to yuv format is carried out special effect processing according to selected special effect processing mode;
In this step, specifically adopt which kind of special effect processing to pass through the property pages chosen in advance, can select multiple special effect processing mode simultaneously by the user, such as: sepia effect+anaglyph, special effect processing is finished by the special effect processing unit of WDM driver module.The special effect processing unit is preserved selected special effect processing mode earlier, after the image information of receiving yuv format, just Y, U, the V value of each pixel of receiving image are carried out conversion or calculating according to the special effect processing mode corresponding algorithm of being stored, or Y, U, the V value of each pixel of receiving image are carried out conversion or calculating according to Y, U, the V value of selected special display effect correspondence, such as: for the black and white effect, the value of U and V is set to 0.
Step 504: will require and the picture size requirement according to different output formats through the image information of special effect processing, carry out corresponding format conversion, then output.
Conversion described in this step is finished by the format conversion unit of WDM driver module, how to realize that specifically conversion belongs to prior art, does not repeat them here.
Based on said method and device, the present invention can make PC Camera when obtaining video flowing, needs according to the user carry out different special effect processing, comprise base plate results, black and white effect, anaglyph, sepia effect, color gamut setting or the like, make the user directly obtain having the dynamic video stream of special display effect, and can catch interface by still image, obtain having the still image of corresponding special display effect.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, a kind of computer camera of realizing the dynamic image special effect processing, comprise: be used for images acquired transducer, view data is compressed digital signal processing chip, the WDM driver module of processing, described WDM driver module comprises the irrelevant module of image processing and contains the image processing correlation module of decompression unit and format conversion unit; It is characterized in that described WDM driver module also comprises:
Special efficacy processing module is arranged between decompression unit and the format conversion unit, and the image information that is used for decompress(ion) is condensed to yuv format is carried out special effect processing, will export to format conversion unit through the image information of special effect processing again.
2, computer camera according to claim 1 is characterized in that, preserves the algorithm of corresponding different special effect processing modes in the described special efficacy processing module.
3, computer camera according to claim 1 is characterized in that, preserves the corresponding relation of different special effect processing modes and different Y, U, V value in the described special efficacy processing module.
4, a kind of method that realizes the dynamic image special effect processing is characterized in that, selects to determine the required special effect processing mode of user, and this method may further comprise the steps:
A. computer camera compresses the current image information that collects, and the image information decompress(ion) after will compressing again is condensed to yuv format;
B. the image information of the described yuv format of step a is carried out special effect processing according to the special effect processing mode of selecting to determine;
C. will carry out corresponding format conversion and export then through the image information of special effect processing according to different output formats and picture size requirement.
5, method according to claim 4 is characterized in that, described special effect processing mode is base plate results or black and white effect or anaglyph or sepia effect or color gamut setting or fives' a combination in any.
6, method according to claim 4, it is characterized in that, step b is described to carry out special effect processing according to the special effect processing mode of select determining and is specially: according to the special effect processing mode of selecting to determine, Y, U, the V value of each pixel of receiving image are carried out conversion or calculating.
7, method according to claim 4 is characterized in that, described selection determines that the required special effect processing mode of user is: select to determine more than one special effect processing modes.
8, method according to claim 4 is characterized in that, this method further comprises: the algorithm of storing corresponding different special effect processing modes in advance in computer camera.
9, method according to claim 4 is characterized in that, this method further comprises: the corresponding relation of storage different special effect processing modes and different Y, U, V value in computer camera in advance.
10, method according to claim 4 is characterized in that, described selection determines that the required special effect processing mode of user is specially: the user sets interface by attribute in the Video Applications software and opens property pages, by property pages the special effect processing mode is set.
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| CNB2004101028509A CN1317886C (en) | 2004-12-24 | 2004-12-24 | Computer pick-up head for implementing specific effect processing of dynamic image and method thereof |
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Cited By (8)
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| CN102244717A (en) * | 2011-04-14 | 2011-11-16 | 钰创科技股份有限公司 | Network camera capable of generating special sound effect and method for generating special sound effect |
| CN102356635A (en) * | 2009-01-12 | 2012-02-15 | 美信集成产品公司 | Video acquisition and processing systems |
| US8181189B2 (en) | 2008-12-31 | 2012-05-15 | Asustek Computer Inc. | System and method for driving hardware device and processing data |
| CN102750716A (en) * | 2011-11-15 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method for generating and invoking template in toning system |
| CN101436306B (en) * | 2008-12-19 | 2013-03-27 | 北京中星微电子有限公司 | Method, apparatus and video display card for implementing image special effect |
| CN103685915A (en) * | 2012-09-11 | 2014-03-26 | 奥林巴斯映像株式会社 | Image generation apparatus, imaging apparatus comprising the same and image generation method |
| CN106210562A (en) * | 2016-08-31 | 2016-12-07 | 北京像素软件科技股份有限公司 | A kind of implementation method of live specially good effect |
| CN110782387A (en) * | 2018-07-30 | 2020-02-11 | 优视科技有限公司 | Image processing method and device, image processor and electronic equipment |
Family Cites Families (4)
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| US6760804B1 (en) * | 2001-09-11 | 2004-07-06 | 3Com Corporation | Apparatus and method for providing an interface between legacy applications and a wireless communication network |
| CN1280742C (en) * | 2003-03-19 | 2006-10-18 | 北京中星微电子有限公司 | Image processor for mobile communication terminal having pick-up head |
| KR100521366B1 (en) * | 2003-06-03 | 2005-10-14 | 주식회사 이고시스템 | apparatus for controlling audio date and method for controlling the same |
| CN2653598Y (en) * | 2003-10-21 | 2004-11-03 | 重庆大学 | Inlayed radio network remote distance image communication terminal |
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- 2004-12-24 CN CNB2004101028509A patent/CN1317886C/en not_active Expired - Fee Related
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| CN101436306B (en) * | 2008-12-19 | 2013-03-27 | 北京中星微电子有限公司 | Method, apparatus and video display card for implementing image special effect |
| US8181189B2 (en) | 2008-12-31 | 2012-05-15 | Asustek Computer Inc. | System and method for driving hardware device and processing data |
| TWI397819B (en) * | 2008-12-31 | 2013-06-01 | Asustek Comp Inc | System and method for driving hardware device and processing data |
| CN102356635A (en) * | 2009-01-12 | 2012-02-15 | 美信集成产品公司 | Video acquisition and processing systems |
| US8854497B2 (en) | 2011-01-10 | 2014-10-07 | Etron Technology, Inc. | Webcam capable of generating special sound effects and method of generating special sound effects thereof |
| CN102244717A (en) * | 2011-04-14 | 2011-11-16 | 钰创科技股份有限公司 | Network camera capable of generating special sound effect and method for generating special sound effect |
| CN102750716A (en) * | 2011-11-15 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method for generating and invoking template in toning system |
| CN103685915A (en) * | 2012-09-11 | 2014-03-26 | 奥林巴斯映像株式会社 | Image generation apparatus, imaging apparatus comprising the same and image generation method |
| CN106210562A (en) * | 2016-08-31 | 2016-12-07 | 北京像素软件科技股份有限公司 | A kind of implementation method of live specially good effect |
| CN110782387A (en) * | 2018-07-30 | 2020-02-11 | 优视科技有限公司 | Image processing method and device, image processor and electronic equipment |
| CN110782387B (en) * | 2018-07-30 | 2023-09-22 | 阿里巴巴（中国）有限公司 | Image processing method and device, image processor and electronic equipment |
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