CN1722779A - Digital camera having function of soft-cleaning of maculation - Google Patents
Digital camera having function of soft-cleaning of maculation Download PDFInfo
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- CN1722779A CN1722779A CN 200510026193 CN200510026193A CN1722779A CN 1722779 A CN1722779 A CN 1722779A CN 200510026193 CN200510026193 CN 200510026193 CN 200510026193 A CN200510026193 A CN 200510026193A CN 1722779 A CN1722779 A CN 1722779A
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- maculation
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Abstract
This invention relates to a digital camera with maculation soft clearing function, which comprises normal optical lens, CCD image sensor, central controlling module, communication interface module, memory module, user operation interface and power management module; wherein the image sensor is behind the lens, connecting to the central controlling module through the bus interface; the central controlling module is connected with communication interface module, memory module, user operation interface and power management module through the bus interface. The method makes the image recovering to the non maculation condition, removing the effect of the maculation to the photo.
Description
Technical field
What the present invention relates to is a kind of digital camera, specifically, is a kind of digital camera with function of soft-cleaning of maculation.Belong to the camera technique field.
Background technology
The similar of present digital camera is all put memory, LCD (LCDs), communication interface and supply module etc. by camera lens, CCD (photoelectric coupled device), A/D (A/D converter), DSP (digital signal processor), inside/outside substantially and is partly formed.Camera lens is in the place ahead of CCD, and the light signal of image is passed to CCD.CCD is changing light signal into the signal of telecommunication, and analog to digital converter becomes analog signal conversion digital signal and is sent to DSP then, and then DSP carries out interpolation and compression and is converted into specific picture format digital signal.At last, image file is stored in the internal memory.The user can check the photo that photographs by LCD, digital camera can also be connected to computer and television set by communication interface.
Find U.S. Patent Publication No. by prior art documents: 20020093577, open day is on July 18th, 2002, denomination of invention: digital camera and control method thereof.A cover camera head and a control operation thereof described in this invention, and its camera head is made up of camera lens, imageing sensor, memory and stain detector.Camera lens can imaging, and it is projected to the surface of imageing sensor, and imageing sensor produces picture output signal and outputs to memory, and stain detector reading images from memory is carried out stain and detected and the result is turned back to memory.This invention is disposed stain by the image processing techniques of camera inside the photo that obtains restoring by calibrating the position of stain in image sensor surface under the stain detecting pattern in the photo that can take after cutting out this stain detecting pattern.In addition, the E1 slr camera that Olympus produces has had dedusting function, but what be to use is that the built-in ultrasonic wave of camera comes dust out, employing be physics mode.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of digital camera with function of soft-cleaning of maculation is provided, make it detect stain by distinctive stain processing module, and image is repaired, all operations is only finished in digital camera inside, thereby has improved efficient and ease for use that stain is handled greatly.
The present invention is achieved by the following technical solutions, the present invention includes: camera lens, imageing sensor, central control module, communication interface module, memory module, user interface, power management module, its connected mode is: imageing sensor is located at the rear of camera lens, imageing sensor is connected with central control module by bus interface, central control module again by bus interface respectively and communication interface module, memory module, user interface, power management module connects, described central control module is responsible for data operation work, and the while is controls lens also, imageing sensor, communication interface module, memory module, the scheduling of the collaborative work of power management module and data flow and instruction stream.
Described power management module is responsible for power supply support to system at whole duration of work always, and adjusts the electricity condition of using of camera automatically.
Described user interface, or be arranged on the mode switch knob on the digital camera, or the option that in the function menu of camera, is provided with.On described user interface, be provided with the selection shelves that stain detects.
Described central control module, its inside is provided with the stain processing sub, the stain processing sub is embedded among the central control module, on hardware, share same digital signal processing chip with central control module, on software, adopt the stain in digital image processing techniques detection and the reparation digital photos, as the entity that central control module inside encapsulates fully, special disposal stain problem.The function of stain processing sub is: the position, size, the color that detect and analyze stain in the picture, the result that will analyze stores in the memory module then, and can from memory module, read these stain information, be used for restoring every other photo with same stain, thus the photo that obtains restoring.
The course of work of the present invention is: camera lens the light focusing of external environment condition to imageing sensor, imageing sensor converts light signal the signal of telecommunication to and sends to central control module, these data image signals are carried out interpolation to central control module and compression is calculated, image data storage after will handling then is to memory module, image in the memory module can show by user interface, also can send to computer by communication interface modules.By being located at the selection shelves of the stain detection on the user interface, containing the photo that has a stain is taken out from memory module by central control module, and the image algorithm in the sharp stain processing sub detects and analyzes, analysis result will be stored in the peculiar position of memory module, as the foundation of stain demarcation.Because stain is caused by adhered dust on the imageing sensor, so take different photos all can stain appear in same position, after this all can carry out stain behind new the picture be taken in the stain processing sub remove to handle: the stain processing sub is taken out in memory module the information about stain, and utilizes corresponding stain to remove algorithm picture is restored.In addition, also can use these stain information to remove stain proving operation captured photo in the past, as long as the stain position of the stain position of those photos and stain timing signal is the same.
The photo that is used to carry out the stain detecting operation should be the simple photo of color of image, helps improving the accuracy and the efficient of detection.If the dust on the imageing sensor has changed, the options that can detect by the stain that is located on the user interface repeats the operation of a stain detection so, specifies a photo that contains new stain to detect and write down current stain information again.So no matter how stain changes, the present invention can both effectively detect and remove these stains.
The invention has the beneficial effects as follows: imageing sensor is revised by the captured image of the digital camera of contamination by dust by digital image processing techniques, the situation that makes image to revert to preferably not have the stain influence is as the eliminate blemishes influence of comparison film of a kind of soft mode.The present invention does not have image on the field that especially accurately requires at civilian image processing and other suitable application prospects is arranged, and the user has used and has been equipped with stain and removes the influence that the digital camera of function just can cause the stain comparison film very flexibly and reduce to minimum.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the control flow chart of the embodiment of the invention.
Embodiment
As shown in Figure 1, the present invention includes: ordinary optical camera lens 1, ccd image sensor 2, central control module 3, communication interface module 5, memory module 6, user interface 7, power management module 8, imageing sensor 2 is located at the rear of camera lens 1, imageing sensor 2 is connected with central control module 3 by bus interface, and central control module 3 inside contain the processing sub 4 that has a stain; Central control module 3 is connected with communication interface module 5, memory module 6, user interface 7, power management module 8 by bus interface respectively again.
Described central control module 3 adds arm processor by DSP and constitutes, be responsible for data operation work, the collaborative work of control ordinary optical camera lens 1, ccd image sensor, communication interface module, memory module, power management module and the scheduling of control data stream and instruction stream.
Described central control module 3 has data operation ability at a high speed and real-time multitask handoff functionality, can carry out the image processing operations of image compression, white balance, special effect processing.
Described communication interface modules 5 comprises physical layer and protocol layer, meets the USB2.0 transmission standard.
Described memory module 6 comprises the memory access ROM and the outside extended storage of camera inside, and outside extended storage adopts CF card or SD card.
Described user interface 7 comprises the LED display lamp, LCD display, and function button, mode switch knob and software operation interface and all are used for receiving the member of user's operational order and feedback user information.
Described power management module 8 uses No. 5 high-energy battery power supplies, also can the combining camera outward appearance adopt reserve battery.
After digital camera is started working, camera lens 1 the light focusing of external environment condition to imageing sensor 2, imageing sensor 2 converts light signal the signal of telecommunication to and sends to central control module 3, these data image signals are carried out interpolation to central control module 3 and compression is calculated, image data storage after will handling then is to memory module 6, image in the memory module 6 can show by user interface 7, also can send to computer or other equipment 9 by communication interface modules 5.By being located at the selection shelves of the stain detection on the user interface 7, containing the photo that has a stain is taken out from memory module 6 by central control module 3, and utilize image algorithm special in the stain processing sub 4 to detect and analyze, analysis result will be stored in the peculiar position of memory module 6, as the foundation of stain demarcation.Need to carry out stain later on and remove when operating, photo and stain information all can be called in the stain processing sub 4 and be handled.
For the course of work that illustrates that stain is removed among the embodiment, can be referring to the control flow chart of Fig. 2.
In Fig. 2, at first from memory module 6, take out the fairly simple photo of picture (if there is not picture simple, also can shooting one), then photo is sent to stain processing sub 4, detect position and the color characteristic that obtains stain through stain, again with the specific location of these stain information stores to memory module 6.Like this, this digital camera has just been finished the work of stain demarcation and feature extraction.
For other photos of having taken that polluted by same stain, if desired they are carried out the image restoration operation, the user can take out these photos from memory module 6, take out the stain information of preserving in advance again, handle to give at stain and use these stain information in the module 4 and these photos are carried out decontamination handle, the photo that obtains restoring is kept at it in memory module 6 then.
For the new photo of taking after the stain testing, present embodiment is provided with the function choosing-item that stain is removed the function opening and closing.If the user closes this function, so captured new photo will directly be kept in the memory module 6; If the user opens this function, will from memory module 6, take out the stain information of preserving in advance so, use these stain information again in stain processing sub 4 new photo is carried out the decontamination processing, the photo that obtains restoring is kept at it in memory module 6 then.
Claims (6)
1, a kind of digital camera with function of soft-cleaning of maculation, comprise: ordinary optical camera lens (1), ccd image sensor (2), memory module (6), user interface (7), power management module (8), it is characterized in that, also comprise: central control module (3), communication interface module (5), imageing sensor (2) is located at the rear of camera lens (1), imageing sensor (2) is connected with central control module (3) by bus interface, and central control module (3) is again respectively by bus interface and communication interface module (5), memory module (6), user interface (7), power management module (8) connects.
2, the digital camera with function of soft-cleaning of maculation according to claim 1, it is characterized in that, described central control module (3) adds arm processor by DSP and constitutes, be responsible for data operation work, the scheduling of the collaborative work of control ordinary optical camera lens (1), ccd image sensor (2), communication interface module (5), memory module (6), power management module (8) and control data stream and instruction stream.
3, according to claim 1 or 2 described digital cameras with function of soft-cleaning of maculation, it is characterized in that, central control module (3) inside contains the processing sub that has a stain (4), stain processing sub (4) is shared same hardware carrier with central control module (3), stain processing sub (4) is embedded among the central control module (3), central control module (3) is shared same digital signal processing chip, adopt the stain in digital image processing techniques detection and the reparation digital photos, as the inner entity of encapsulation fully of central control module (3), stain processing sub (4) detects and analyzes the position of stain in the picture, size, color, the result that will analyze stores in the memory module (6) then, and can from memory module (6), read these stain information, be used for handling every other photo with same stain, thus the photo that obtains restoring.
4, the digital camera with function of soft-cleaning of maculation according to claim 1 is characterized in that, described communication interface modules (5) comprises physical layer and protocol layer, meets the USB2.0 transmission standard.
According to claim 1 or 3 described digital cameras with function of soft-cleaning of maculation, it is characterized in that 5, described memory module (6) comprises the memory access ROM and the outside extended storage of camera inside, outside extended storage adopts CF card or SD card.
6, the digital camera with function of soft-cleaning of maculation according to claim 1, it is characterized in that, described user interface (7) comprises the LED display lamp, LCD display, function button, mode switch knob and software operation interface and all are used for receiving the member of user's operational order and feedback user information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026193 CN1722779A (en) | 2005-05-26 | 2005-05-26 | Digital camera having function of soft-cleaning of maculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510026193 CN1722779A (en) | 2005-05-26 | 2005-05-26 | Digital camera having function of soft-cleaning of maculation |
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| CN1722779A true CN1722779A (en) | 2006-01-18 |
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| CN 200510026193 Pending CN1722779A (en) | 2005-05-26 | 2005-05-26 | Digital camera having function of soft-cleaning of maculation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486546A (en) * | 2014-12-19 | 2015-04-01 | 广东欧珀移动通信有限公司 | Photographing method and device and mobile terminal |
| CN106973291A (en) * | 2017-06-01 | 2017-07-21 | 信利光电股份有限公司 | A kind of camera module, electronic equipment, stain restorative procedure and system |
-
2005
- 2005-05-26 CN CN 200510026193 patent/CN1722779A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486546A (en) * | 2014-12-19 | 2015-04-01 | 广东欧珀移动通信有限公司 | Photographing method and device and mobile terminal |
| CN104486546B (en) * | 2014-12-19 | 2017-11-10 | 广东欧珀移动通信有限公司 | The method, device and mobile terminal taken pictures |
| CN106973291A (en) * | 2017-06-01 | 2017-07-21 | 信利光电股份有限公司 | A kind of camera module, electronic equipment, stain restorative procedure and system |
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