CN1767638A - Visible image monitoring method for protecting privacy right and its system - Google Patents
Visible image monitoring method for protecting privacy right and its system Download PDFInfo
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- CN1767638A CN1767638A CN 200510125957 CN200510125957A CN1767638A CN 1767638 A CN1767638 A CN 1767638A CN 200510125957 CN200510125957 CN 200510125957 CN 200510125957 A CN200510125957 A CN 200510125957A CN 1767638 A CN1767638 A CN 1767638A
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- 238000012544 monitoring process Methods 0.000 title claims description 28
- 238000012545 processing Methods 0.000 claims description 79
- 238000012806 monitoring device Methods 0.000 claims description 8
- 238000002161 passivation Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 2
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Abstract
This invention discloses a visual image monitor method for protecting private right including the following steps: a, collecting images, b, carrying out fuzzy process to the collected images, c, displaying or storing the fuzz images at the display terminal. A system for realizing the method is also disclosed.
Description
Technical field
The present invention relates to the digital image processing techniques field, relate to a kind of visible image monitoring method and system thereof that protects the right of privacy especially.
Background technology
The visible image monitoring system is to be core with the Digital Video Processing technology, comprehensive utilization photoelectric sensor, computer network, a kind of novel supervisory control system of multiple technologies such as control and artificial intelligence automatically, it is along with the fast development of network, communication and microelectric technique, obtains with many aspects such as command schedulings in safety precaution, information and has obtained application more and more widely.
Yet, in some occasion visible image monitoring The Application of Technology, but make people that the right of privacy has been caused bigger dispute, for example: can help the driver to understand the situation of passenger getting on/off though this system is installed on bus, but relate to passenger's right of privacy and portraiture right, and do not need to obtain very distinct image in this case.Be exactly in addition in some interview processes or other shooting process, some are not wished own the media exposure by the interviewee yet.
At present,, the video image that collects can be carried out Fuzzy Processing when showing, perhaps add mosaic etc. in face in order to protect the right of privacy.But the original film of these processing modes remains clearly, may leak or be copied, and has unsafe factor.
In addition, for the definition of monitoring picture, may need to carry out different processing, for example: in the elderly's the room supervisory control system is installed at home according to different demands, the elderly's health status and activity situation can be in time understood, for the household, clearly image can be observed.But,,, just may relate to the problem of the right of privacy and need carry out Fuzzy Processing image as sub-district property department if the people outside the family monitors.
Summary of the invention
The present invention promptly is a kind of visible image monitoring method and the system thereof that protects the right of privacy that proposes at the shortcoming that exists in the above-mentioned prior art, can protect related personnel's the right of privacy effectively.
Studying above-mentioned various situation can find, above-mentioned visual image surveillance all is that image carries out when playing to the Fuzzy Processing of image, promptly all be to handle afterwards, if when images acquired, just data are carried out Fuzzy Processing, just can obtain the data of the blurred picture that can't reduce, thereby make the right of privacy be ensured reliably.
Based on above conception, the invention provides a kind of visible image monitoring method of protecting the right of privacy, when images acquired, data are carried out Fuzzy Processing, obtain the data of the blurred picture that can't reduce, thus the protection right of privacy, this method comprises the steps:
(a) images acquired;
(b) image of gathering is carried out Fuzzy processing;
(c) the image of Fuzzy processing shows and/or preservation in display terminal output.
Further, the image of gathering in the step (a) is carried out digitized processing.
Further, described step (b), it is to realize by the image passivation or the method for adding mosaic in the appointed area that image is carried out Fuzzy processing.
Further, described step (b), image is carried out Fuzzy processing realize by following method: (1) identifies the human face region in the images acquired; (2) human face region is carried out Fuzzy Processing.
Further, in the described step (b), image is carried out Fuzzy processing can set different fuzzy grades.
Further, in the described step (c), export demonstration simultaneously at two or more display terminals through the image of Fuzzy processing.
Further, this method is set different fuzzy grades according to different user rights, and output shows the image of different fuzzy grades on different display terminals.
The visible image monitoring system of the protection right of privacy provided by the invention comprises: image acquisition and processing unit, display terminal; and an image blurring processing unit that is used for picture signal is carried out Fuzzy processing, described image blurring processing unit is arranged between the output and display terminal of image acquisition and processing unit.
Further, described image blurring processing unit is a low pass filter.
Further, described image blurring processing unit also comprises a dispensing unit that is connected with described low pass filter, and described dispensing unit is used for being provided with the convolution coefficient of described low pass filter.
Further, also be provided with a face identification unit that is used for human face region identification before the described image blurring processing unit.
Further, this device comprises that also one is used to preserve the memory of the view data after the image blurring processing unit processes, and described memory is connected with described image blurring processing unit.
Further, described image blurring processing unit is connected with two or more display terminals.
Further, this device comprises that also one is used for the access controller of fuzzy grade that authority setting according to the user outputs to the image of this user place terminal, and described access controller all is connected with image blurring processing unit, display terminal.
Compared with prior art; the present invention has realized the dynamic fuzzy of image is handled; and the fuzzy grade of this Fuzzy Processing can different convolution coefficients obtains in the low pass filter by setting; image after the Fuzzy Processing is irrecoverable, when this has solved some occasion visible image monitoring devices effectively and has used to the Protection of Right of Privacy problem.
Description of drawings
Fig. 1 is the functional block diagram of the embodiment of the invention one;
Fig. 2 is the functional block diagram of the embodiment of the invention two;
Fig. 3 is the functional block diagram of the embodiment of the invention three.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further introduced, but not as a limitation of the invention.
Embodiment one:
With reference to shown in Figure 1, the visible image monitoring system of the present embodiment protection right of privacy is used to monitor the situation of the passenger getting on/off at bus back door.Comprise the image acquisition and processing unit 1, low pass filter 2, TV encoder 3 and the display terminal 4 that link to each other successively, dispensing unit 5 links to each other with low pass filter 2.Compare with existing vehicle monitoring system, increased a low pass filter 2 and a dispensing unit 5.
Image acquisition and processing unit 1 is a camera, operated by rotary motion in the compartment near on the ceiling at back door, be used for digital signal is gathered and be converted to the image at scene, send into then in the low pass filter 2, carry out Fuzzy processing by 2 pairs of picture signals of low pass filter, export TV encoder 3 again to, the picture signal that TV encoder 3 will receive has blured converts analog signal to, outputs on the display terminal 4 by cable to show in real time.
When 2 pairs of picture signals of low pass filter are carried out Fuzzy processing, be the method that adopts passivation, even to equal with it be the mean value of former chroma data of N * N the pixel at center to the chroma data of each pixel.N is the convolution coefficient in the low pass filter, and the N value is big more, and image is just fuzzy more, and this N value is configured and is stored by dispensing unit 5, can also pass through the interface correct.
Corresponding method for supervising may further comprise the steps: image is gathered, be converted into digital signal, carry out Passivation Treatment then in low pass filter, output to terminal at last and show.Can certainly adopt full system for simulating.
After using the supervisory control system of present embodiment, the image that occurs at display terminal is exactly a fuzzy image, can make that this image can satisfy the needs of driver observation passenger getting on/off by the setting to the N value, can satisfy the needs of the protection passenger right of privacy again.It is a very practical system.
Embodiment two:
When the visible image monitoring system of the present embodiment protection right of privacy is used for interviewing at the scene image is directly carried out Fuzzy Processing.As shown in Figure 2, this system comprises image acquisition and processing unit 1, face identification unit 7, people's face Fuzzy Processing unit 8, TV encoder 3 and the display terminal 4 that links to each other successively, and memory 6 links to each other with people's face Fuzzy Processing unit 8.
Image acquisition and processing unit 1 is a camera, output be digital signal, 7 pairs of images from camera of face identification unit are discerned, and can adopt various recognition methodss, and are not high to the requirement of accuracy of identification here; After face identification unit 7 is finished identification, human face region that identifies and the original image that photographs are sent into people's face Fuzzy Processing unit 8 together, people's face Fuzzy Processing unit 8 replaces the image in the human face region with mosaic, specifically, the carrier chrominance signal that can replace all pixels in this zone with the grey scale signal in this zone, perhaps be divided into a plurality of little zones, in each little zone, do this processing.Picture signal after the processing is converted to analog signal and outputs to display terminal 4, and save the data in the memory 6 through TV encoder 3.
Corresponding visible image monitoring method may further comprise the steps: image is gathered, be converted into digital signal, identify the human face region in the image, human face region is carried out Fuzzy Processing, preserve then and show view data after the processing.
This supervisory control system and method can be so that face's obfuscations that just will the person of being taken when interview is taken, and data are unreducible, ensured interviewee's the right of privacy effectively.
Embodiment three:
The visible image monitoring system of the present embodiment protection right of privacy is used for the surveillance of family, can conduct interviews by network, and different user can be seen the image of different fuzzy grades.As shown in Figure 3, this system comprises image acquisition and processing unit 1, image blurring processing unit 9, first communications interface unit 10, first circuit 11 and first monitoring terminal 12 that links to each other successively.In addition, image blurring processing unit 9 also is connected with second communication interface unit 10 ', second circuit 11 ' and second monitoring terminal 12 '.In addition, also has an access control unit 13 that links to each other with each communications interface unit with described image blurring processing unit 9.Communications interface unit, circuit and monitoring terminal can have more than 2 groups.Circuit can be various forms such as the circuit of the Internet, cell monitoring system or wireless communication line.Monitoring terminal can be the terminal of security surveillance system of sub-district or personal computer or the like.
Image acquisition and processing unit 1 can be mounted in the camera in room, old man place, its signal is sent into image blurring processing unit 9, it is identical with embodiment one that 9 pairs of images of image blurring processing unit carry out fuzzy processing method, but its N value is set according to visitor's authority by access control unit 13.For example, when the visitor was the administrative staff of sub-district property, this is image blurring, and processing unit 9 can be made as 3～6 with the N value, sent to this terminal by the communication interface that links to each other with this administrative staff place monitoring terminal then and showed.If the visitor is old man's relatives, it is 1 that the N value then can be set, and does not promptly do Fuzzy Processing, directly original picture signal is sent to its terminal through the communication interface that links to each other with this relatives place terminal and shows.
Corresponding visible image monitoring method may further comprise the steps: image is gathered, be converted into digital signal, carry out corresponding Fuzzy Processing according to visit personnel's authority, the terminal that the view data after will handling then sends to this personnel place shows.
This processing mode is distinguished among differing cases, and has promptly protected the right of privacy, the situation that makes things convenient for relatives to observe the old man at any time again, and the property management personnel also can have understanding roughly to old man's situation simultaneously.
The present invention is all right various conversion on the basis of the foregoing description, for example, be that the useful signal that image acquisition units is gathered strengthens, can be in increase signal gain unit and noise reduction unit between the output of image acquisition units and the image blurring processing unit, or the like.
Claims (14)
1, a kind of visible image monitoring method of protecting the right of privacy carries out Fuzzy Processing to data when images acquired, obtains the data of the blurred picture that can't reduce, thereby the protection right of privacy is characterized in that this method comprises the steps:
(a) images acquired;
(b) image of gathering is carried out Fuzzy processing;
(c) the image of Fuzzy processing shows and/or preservation in display terminal output.
2, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, the image of gathering in the step (a) is carried out digitized processing.
3, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, described step (b), and it is to realize by the image passivation or the method for adding mosaic in the appointed area that image is carried out Fuzzy processing.
4, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, described step (b), and image is carried out Fuzzy processing realize by following method: (1) identifies the human face region in the images acquired; (2) human face region is carried out Fuzzy Processing.
5, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, in the described step (b), image is carried out Fuzzy processing set different fuzzy grades.
6, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, in the described step (c), exports demonstration through the image of Fuzzy processing simultaneously at two or more display terminals.
7, a kind of visible image monitoring method of protecting the right of privacy as claimed in claim 1 is characterized in that, sets different fuzzy grades according to different user rights, and output shows the image of different fuzzy grades on different display terminals.
8, a kind of visible image monitoring device of protecting the right of privacy; comprise: image acquisition and processing unit, display terminal; it is characterized in that; this device comprises that also one is used for picture signal is carried out the image blurring processing unit of Fuzzy processing, and described image blurring processing unit is arranged between the output and display terminal of image acquisition and processing unit.
9, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 8 is characterized in that described image blurring processing unit is a low pass filter.
10, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 9; it is characterized in that; described image blurring processing unit also comprises a dispensing unit that is connected with described low pass filter, and described dispensing unit is used for being provided with the convolution coefficient of described low pass filter.
11, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 8 is characterized in that, also is provided with a face identification unit that is used for human face region identification before the described image blurring processing unit.
12, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 8; it is characterized in that; this device comprises that also one is used to preserve the memory of the view data after the image blurring processing unit processes, and described memory is connected with described image blurring processing unit.
13, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 8 is characterized in that described image blurring processing unit is connected with two or more display terminals.
14, a kind of visible image monitoring device of protecting the right of privacy as claimed in claim 13; it is characterized in that; this device comprises that also one is used for the access controller of fuzzy grade that authority setting according to the user outputs to the image of this user place terminal, and described access controller all is connected with image blurring processing unit, display terminal.
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