CN101389005A - Method and apparatus blocking special position of image - Google Patents
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- CN101389005A CN101389005A CN 200710145379 CN200710145379A CN101389005A CN 101389005 A CN101389005 A CN 101389005A CN 200710145379 CN200710145379 CN 200710145379 CN 200710145379 A CN200710145379 A CN 200710145379A CN 101389005 A CN101389005 A CN 101389005A
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Abstract
The invention discloses a method and a device for sheltering an image particular position, which are used for solving the problem that the prior art has no proposal for sheltering video images, and can not only display original images after sheltering particular locations of the video images, but also guarantee security of image transmission. The inventive method comprises the steps of: determining the location of a sheltered image in a first image, and storing the location information of the sheltered image; performing an image scrambling to the sheltered image in accordance with the location information of the sheltered image to obtain a second image. The invention also discloses an image display method, device and an image processing method, system.
Description
Technical field
The present invention relates to technical field of image processing, relate in particular to a kind of method and device blocking special position of image.
Background technology
Along with the continuous development of electronic imaging technology, in order to suppress crime, protection people's the security of the lives and property, the video monitoring technology is used widely in various occasions.For example, the camera head of each traffic intersection can be used to take vehicles peccancy; The generation of various crime dramas can in time be found and prevent to the video monitoring system of installing in each residential quarter under cell operation personnel's monitoring; Video monitoring system in that subway station is installed can in time prevent the generation of various accidents by staff's observation, and can find special circumstances; The camera head that install on the doorway of Xiamen on bus then can assist the driver and conductor to observe the personnel of getting on or off the bus, and helps traffic safety.
Yet the video monitoring system of the overwhelming majority remains by the people and observes at present, and can be recorded in all video scenes in the memory device in real time.Under such condition, the people's portraiture right even the right of privacy might be invaded.For example, in the camera system of subway station, all face-images through the passenger of these subway stations all can go on record, and under the extremely flourishing situation of current computer network, these video contents are difficult to assurance and are not used to other purposes, and passenger's right just might be invaded so.
Therefore, for the right of protecting people is not invaded, meeting the market requirement, most intelligent sphere picture pick-up devices begin to adopt shielding function.So-called shielding function refers to, and increases specific shielding block at the ad-hoc location of video flowing, the vision signal that samples at this video image region in order to the shielding video camera, thus reach the effect of covering video image.
But it is inappropriate regularly some video image position being blocked, because what in most cases need to block is the part that people's face etc. can move.
Prior art has proposed the result of the image that is absorbed according to the detection of people's face carried out Fuzzy processing to the people face part, generally adopts the method for low-pass filtering to carry out obfuscation.Then the image of different fog-levels is shown on different display terminals respectively, offer personnel and watch with different rights.But, can't be reduced to picture rich in detail by other method through the image after the low-pass filtering treatment, therefore, can't check original image.In addition, to show the image of different fog-levels in this method simultaneously, increase the bandwidth requirement that is used for images information at a plurality of display terminals.In actual conditions, which type of fog-level is difficult to define which kind of situation needs, and the prior art does not provide the definite definition of fog-level, and reality in most cases only needs " clear " and " bluring " two kinds of images to get final product.
A kind of system framework that is used for Right of Privacy Protection has also been proposed in the prior art.This framework mainly is made of three parts, and selector is used to the Private Parts image block of selecting specific needs to be blocked; Converter is used for selected image block is carried out various image transforms, can't directly check picture rich in detail thereby Private Parts blocked; Authorized device then is used for the viewer is authorized by different stage, give the viewer different check authority, whether the control change device carries out conversion to some image block.But, in this scheme, video flowing transmits with primitive form from the source end, has just comprised information such as the position that need block and mode in the information that is transmitted in addition, this has increased data volume to a certain extent, and has correspondingly influenced the transfer bandwidth requirement.In addition, be original video flowing owing to what transmit, so can reduce fail safe, that is to say, when the observer does not adopt video browser given in this scheme, might directly obtain original video stream.
In sum, prior art does not have a kind of scheme that video image is blocked, and both can realize can also showing original image after ad-hoc location to video image blocks, and can guarantee the image safety of transmission again.
Summary of the invention
The embodiment of the invention provides a kind of method and device to blocking special position of image, there is not a kind of scheme that video image is blocked in order to solve in the prior art, both can realize to show original image after ad-hoc location to video image blocks, can guarantee the problem of image transmission security again.
Correspondingly, the embodiment of the invention also provides a kind of display packing, device of image, and a kind of image processing method, system.
A kind of method to blocking special position of image that the embodiment of the invention provides comprises:
Determine the position of the shielded image in first image, and store the positional information of described shielded image;
According to the positional information of described shielded image, described shielded image is carried out image scrambling handle, obtain second image.
The display packing of a kind of image that the embodiment of the invention provides comprises:
Receive the 3rd image of handling through image scrambling, and extract the positional information that embeds the shielded image in this image;
According to the positional information of described shielded image, and the key that is used to recover described shielded image,, obtain first image to the random processing that is inverted of the shielded image in described the 3rd image; And show described first image.
A kind of image processing method that the embodiment of the invention provides comprises:
Determine the position of the shielded image in first image, and store the positional information of described shielded image,, described shielded image is carried out image scrambling handle, obtain second image, with described second image output according to the positional information of described shielded image;
Receive described second image, and according to the positional information of described shielded image, and the key that is used to recover described shielded image,, obtain and show described first image the random processing that is inverted of described shielded image.
A kind of device to blocking special position of image that the embodiment of the invention provides comprises:
The shielded image position determination unit is used for determining the position of the shielded image of first image and the positional information of storing described shielded image;
The image scrambling unit is used for the positional information according to described shielded image, described shielded image is carried out image scrambling handle, and obtains second image.
The display unit of a kind of image that the embodiment of the invention provides comprises:
Receiving element is used to receive the 3rd image through after the image scrambling processing;
Information extraction unit is used for extracting the positional information of the shielded image that embeds described the 3rd image;
The image random unit that is inverted is used for the positional information according to described shielded image, and the key that is used to recover described shielded image, to the random processing that is inverted of the shielded image in described the 3rd image, obtains first image;
Display unit is used to show described first image.
A kind of image processing system that the embodiment of the invention provides, comprise: image blocks transmitting device, the position that is used for the shielded image of definite first image, and the positional information of storing described shielded image, positional information according to described shielded image, described shielded image is carried out image scrambling handle, obtain second image, with described second image output;
Image display device is used to receive described second image, and according to the positional information of described shielded image, and the key that is used to recover described shielded image, to the random processing that is inverted of described shielded image, obtain described first image, and show described first image.
The embodiment of the invention is determined the position of the shielded image in first image, and stores the positional information of described shielded image; According to the positional information of described shielded image, described shielded image is carried out image scrambling handle, obtain second image.By this technical scheme, make when described second image of transmission, can improve the image safety of transmission, avoid the malice of original image to propagate.And, can when checking original image, needs intactly recover original image, and supply the staff to check, thereby help the inquiry of information.
Description of drawings
The schematic flow sheet of a kind of method to blocking special position of image that Fig. 1 provides for the embodiment of the invention;
The schematic flow sheet of a kind of method to blocking special position of image that Fig. 2 provides for the embodiment of the invention;
The schematic flow sheet of the display packing of a kind of image that Fig. 3 provides for the embodiment of the invention;
A kind of apparatus structure schematic diagram that Fig. 4 provides for the embodiment of the invention to blocking special position of image;
The structural representation of the display unit of a kind of image that Fig. 5 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of method and device to blocking special position of image, by first image is positioned, determines the position of the shielded image in described first image; Shielded image to this position carries out the image scrambling processing, obtains second image.Adopt reversible image scrambling method that shielded image is handled, thereby can when needs are checked original image information, can intactly recover original image, check, help the inquiry of information for the staff.
Preferably, the positional information of the shielded image of described image is embedded in described second image, obtain the 3rd image, and transmit the 3rd image, avoided the positional information of the described shielded image of independent transmission, improved fail safe on the one hand, having reduced on the other hand needs transmission or data quantity stored, has improved the utilance of transmission channel.
Correspondingly, the embodiment of the invention also provides a kind of display packing and device of image, by the image of reception through the image scrambling processing, and extracts the positional information that embeds the shielded image in this image; According to the positional information of described shielded image, and the key that is used to recover described shielded image,, show the image that is inverted after disorderly handling through described to the unrest that is inverted of described shielded image.Make and to restore original image clearly through the image after the image scrambling processing.
The embodiment of the invention also provides a kind of image processing method, system.
Referring to Fig. 1, a kind of method to the blocking special position of image transmission that the embodiment of the invention provides comprises:
S101, first image is positioned, determine the position of the shielded image in described first image.
Can select the position of image in whole original image that need be blocked by motion detection or human face detection tech, can formulate some strategies and be used for selecting original image where to need to be blocked.
S102, according to described position, described shielded image is carried out image scrambling handles, obtain second image.
Described image scrambling is reversible, so after receiving terminal receives described second image, can also restore original image.
Can select Arnold conversion, Fibonacci conversion, scrambling transformation, inferior affine transformation scheduling algorithm to carry out described image scrambling.
S103, transmission or store described second image.
Image in the transmission course is the image after handling through described image scrambling, has therefore avoided obtaining from the transmission way problem of original image, has improved the image safety of transmission.
The positional information of described shielded image can be transferred to receiving terminal respectively with described second image.Receiving terminal in addition, also the positional information of described shielded image can be embedded in described second image, obtain the 3rd image, the 3rd image is transferred to receiving terminal, so that can recover to obtain original image according to the positional information of shielded image.
Preferably, described first image is the video image of each continuous frame of collecting.
In the embodiment of the invention, all be identical, below be described at the processing of the video image of each frame for the processing of the video image of each continuous frame.
Referring to Fig. 2, for the video image of each continuous frame, a kind of method to blocking special position of image that the embodiment of the invention provides comprises:
S201, the video image of gathering is positioned, determine the position of the shielded image of this video image.
Described shielded image is to need the image that is blocked in the raw video image that collects.
S202, standardized in the position of the shielded image of described video image.
Standardize in position to the shielded image of described video image, so that the regular shape of described shielded image.
In this process of normalization,, can replace occlusion area in irregular shape with its minimum boundary rectangle if only can handle the rectangle occlusion area in the system.
In carrying out the system of image (video) compression, can be presented as by needs: the yardstick of the macro block that adopts according to image compression, standardize in position to shielded image, promptly the image-region that needs are blocked aligns with the border of the macro block that is used for image transform (as dct transform), and the picture position that need be blocked is distributed in the different macro blocks with the picture position that does not need to be blocked.
S203, the image through the position of the shielded image after the described standardization processing is carried out image scrambling handle.
The parameter (as the sequence number of scrambling algorithm, scramble matrix, scramble iterations etc.) that to carry out image scrambling to described video image is as the key of shielded image as described in recovering, image after described key and described image scrambling are handled transmits respectively, and perhaps described key is stored in a side that receives described image in advance.
S204, the positional information of the shielded image of described video image is encoded.
Can encode with the rectangular coordinates of the picture position that is blocked, perhaps, the binary image template of the picture position that is blocked be carried out encoding behind the convergent-divergent.
S205, will embed through the positional information of the shielded image of this video image behind the described coding in described this video image after handling through image scrambling.
Can select for use the algorithm of reversible water mark to finish described information embedding operation.
S206, will carry out video compression through described image scrambling processed video image.
S207, will transmit through the video image after the described video compression.
Correspondingly, referring to Fig. 3, for the video image of each continuous frame, the display packing of a kind of image that the embodiment of the invention provides comprises:
S301, reception are through image scrambling processed video image.
S302, when described video image is a compressed image, the described video image that receives is decompressed.
S303, judge whether to exist the image scrambling key, if then carry out step S304; Otherwise, carry out step S308.
S304, extraction embed the positional information of the shielded image in the described frame video image.
S305, when the positional information of described shielded image through encoding process, then the positional information of described shielded image is decoded.
S306, according to the positional information of described decoded shielded image, and the key that recovers described shielded image is to the unrest that is inverted of the shielded image of this video image.
Wherein, described key sets in advance; Perhaps, receive respectively with described image.
S307, the described random processed video image that is inverted of demonstration.
S308, the described process image scrambling processed video image that receives of demonstration.
Referring to Fig. 4, a kind of device to blocking special position of image that the embodiment of the invention provides comprises: shielded image position determination unit 41, normalization unit 42, coding unit 43, image scrambling unit 44, embedding unit 45, generation cipher key unit 46, compression unit 47 and transmission unit 48.
Described shielded image position determination unit 41; by methods (can certainly carry out the location of ad-hoc location) such as motion detection or the detections of people's face according to other technology that interesting areas is detected; the video image of gathering is positioned; under the constraint of blocking the choice of location rule, determine that the needs of this video image block the position of the shielded image of protection.
Last image transmitted is the image after handling through video compression, described normalization unit 42, and the yardstick of the macro block that adopts according to video compression standardizes to the position of the shielded image of described video image.
Described coding unit 43 based on the coding rule that sets in advance, is encoded to the positional information of the shielded image of described video image.
Described image scrambling unit 44 carries out image scrambling to the image of the position of described shielded image.
The appropriate information hidden algorithm is selected in described embedding unit 45, and the positional information of the shielded image of described video image is embedded in this video image after handling through described image scrambling.
Described generation cipher key unit 46 as key, and is transferred to receiving terminal respectively with this key and the described image scrambling processed video of described process image with the image scrambling parameter of described video image, perhaps this key is stored in described receiving terminal in advance.
Described compression unit 47, the complete video image after will handling through described image scrambling carries out video compression.
Described transmission unit 48 will be given receiving terminal through the transmission of video images of described video compression.
The video flowing of the above-mentioned image processing of process can transfer to the video tour end by described transmission unit 48 and show, can also be recorded in the memory device.
Described compression unit 47 can be selected, and is optional.
On the video tour end in the device of display image, after obtaining video flowing, whether the active user who checks video browser has key, if do not find suitable key, shows directly that then the ad-hoc location image that receives is the video image of handling through image scrambling; If found correct key, then adopt the reverse method extraction image of Information hiding to block positional information earlier, and according to described coding rule oppositely decoding obtain the position of shielded image, again according to the relevant parameter information of the image scrambling that is comprised in the key to the image that blocks the position unrest that is inverted, at last showing through the described original image that obtains after being inverted disorderly.
Referring to Fig. 5, the display unit of a kind of image that the embodiment of the invention provides comprises: receiving element 51, decompression unit 52, key inspection unit 53, information extraction unit 54, decoding unit 55, cipher key unit 56, image be inverted random unit 57 and display unit 58.
Described receiving element 51 receives through image scrambling processed video image.
Described decompression unit 52 when the described video image that receives is the image that passes through after video compression is handled, decompresses to described video image.
Described key inspection unit 53 judges whether to exist the key that is used to recover shielded image, if then trigger described information extraction unit 54; Otherwise, trigger described display unit 58.
Described information extraction unit 54 according to the triggering of described key inspection unit 53, is extracted the positional information that embeds the shielded image in the described video image.
Described decoding unit 55 when the positional information of the shielded image of described extraction is positional information through the shielded image after the encoding process, is decoded to the positional information of described shielded image.
Described cipher key unit 56, storage in advance is used to recover the key of shielded image, perhaps, receives described key, and this key receives at different time through image scrambling processed video image with described.
The described image random unit 57 that is inverted is according to the positional information of described decoded shielded image, and described key, to the random processing that is inverted of the shielded image of described video image.
Described display unit 58 shows the complete video image that is inverted after disorderly handling through described; And, according to the triggering of described key inspection unit 52, show the described process image scrambling processed video image that receives.
Wherein, described decompression unit 52 also is optionally, and is optional.
A kind of image processing system that the embodiment of the invention provides comprises: image blocks transmitting device and image display device;
Described image blocks transmitting device, and the video image that collects is positioned, and determines the position of the shielded image of this video image; And, the image of described picture position is carried out the image scrambling processing, described picture position information is embedded through in this video image after the described image scrambling processing, and give described image display device this transmission of video images.
Described image display device, the video image of transmitting device is blocked in reception from described image, and extraction embeds the positional information of the shielded image in this video image, according to this information, and the key that is used to recover described shielded image, to the random processing that is inverted of the shielded image in this video image, and show the described complete video image that is inverted after disorderly handling.
For example, the image processing system that the embodiment of the invention provides is set, is used to prevent that the portraiture right of monitored object is inviolable etc. in subway station inside.Described image blocks transmitting device, gather video image, resultant image is carried out people's face to be detected, obtain the facial image zone that to block, and standardization facial image zone, the image in normalized zone is carried out image scrambling handle, the positional information in facial image zone is encoded and embed, then the described video image of scramble is carried out being transferred to described image display device after the video compression through in this video image behind the described image scrambling.By described image display device described video image is decompressed, and show corresponding video image according to class of subscriber.For user with image scrambling key, show the raw video image that comprises facial image after reducing, for the user who does not have the image scrambling key, show the image that receives through the image scrambling processing.Wherein, described video compression and decompression are selectable operations.
Preferably, in this system, described image blocks transmitting device, whether carries out video compression and different according to system.When needs carried out video compression, described image blocked transmitting device, and the yardstick (being 8 * 8 in the present embodiment) according to the macro block of the video compression algorithm that video compression adopted standardizes to described facial image zone.If resulting facial image zone is not 8 * 8 integral multiple, then the height and width that make the facial image zone is expanded in the facial image zone and all become 8 * 8 integral multiple; If position, the upper left corner in facial image zone (certainly, yet can be the upper right corner, the upper left corner or the lower right corner) is not 8 integral multiple, then move (descend) on the described upper left corner accordingly or left (right side) moves on to 8 integral multiple position.When needs carry out video compression, only need the height and width standard in described facial image zone is changed into the integral multiple of 8 * 8 (or other numerical value that are fit to).
Preferably, described image blocks in the transmitting device, the parameter that will be used for the image scrambling processing is as the key that recovers original image, this key can be blocked the transmitting device generation and is transferred to described image display device respectively with described video image by described image, can also be stored in advance in the described image display device.
Preferably, described image blocks transmitting device, in the process of the video image after the positional information in facial image zone being encoded and embed the described image scrambling of process, form image template earlier, the image-region pixel value that is not blocked is made as 0, and the image-region pixel value that is not blocked is made as 1.Adopt discrete cosine transform (DCT, Discrete Cosine Transform) transform domain information hidden method, this image template is embedded in the video image of scramble.
Preferably, described image blocks transmitting device, in the process of carrying out video compression, consider because image scrambling has influenced original correlation between the image pixel, may cause the decline of compression performance or the influence disorderly quality of back image that is inverted, to carried out the compression method of relatively low pressure shrinkage by the image of scramble, also can specify these parts of images to adopt special compressed encoding mechanism in the present embodiment.
Preferably, described image display device need judge whether to exist key, and if there is no key then directly shows behind the decompressed video stream; Otherwise, extract earlier the template image in the shielded image zone of video image, and according to the scrambling algorithm parameter that comprises in the key to the unrest that is inverted of described shielded image zone, and show picture rich in detail after being inverted disorderly.
In sum, in the technical scheme that the embodiment of the invention provides, the ad-hoc location image in the image of transmission and storage is handled through image scrambling, so improved the image transmission security, has avoided the malice of image to propagate; And, owing to adopted reversible image scrambling method, thus when needs are checked original image information, can intactly recover original image.The technical scheme that the embodiment of the invention provides is hidden in image itself after the positional information of the image-region that is blocked is encoded, rather than transmission separately, improved fail safe on the one hand, also having reduced on the other hand needs transmission or data quantity stored, has improved the utilance of transmission channel.The embodiment of the invention, when needs carry out video compression, carry out the standardization of the position of shielded image earlier, corresponding shielded image regional location and the employed macro block aligned of video compression, and when video compression, scramble image is adopted little compressible or uses the specific coding method, thereby reduced when decompressing image, can obtain the better pictures effect to the influence of the image of scramble.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (24)
1, a kind of method to blocking special position of image is characterized in that, this method comprises:
Determine the position of the shielded image in first image, and store the positional information of described shielded image;
According to the positional information of described shielded image, described shielded image is carried out image scrambling handle, obtain second image.
2, method according to claim 1 is characterized in that, this method also comprises:
The positional information of described shielded image is embedded in described second image, obtain the 3rd image, transmit or store described the 3rd image.
3, method according to claim 1 and 2 is characterized in that, the positional information of described shielded image is the positional information through the shielded image after the standardization processing.
4, method according to claim 2 is characterized in that, the positional information of the shielded image of described image is encoded, and will embed through the positional information of the shielded image behind the described coding in described second image.
5, method according to claim 3 is characterized in that, this method also comprises: described second image is compressed.
6, method according to claim 3 is characterized in that, the step of the position of described shielded image being carried out standardization processing comprises:
The yardstick of the macro block that adopts when described second image is compressed carries out standardization processing to the position of described shielded image.
7, method according to claim 1 is characterized in that, this method also comprises: the parameter that will be used for described image scrambling is as the key that recovers described shielded image.
8, a kind of display packing of image is characterized in that, this method comprises:
Receive the 3rd image of handling through image scrambling, and extract the positional information that embeds the shielded image in this image;
According to the positional information of described shielded image, and the key that is used to recover described shielded image,, obtain first image to the random processing that is inverted of the shielded image in described the 3rd image; And show described first image.
9, method according to claim 8 is characterized in that, when the positional information of described shielded image is positional information through the shielded image after the encoding process, the described shielded image step of disorderly handling that is inverted is comprised:
Positional information to described shielded image is decoded;
According to the positional information of described decoded shielded image, and described key, to the random processing that is inverted of described shielded image.
10, according to Claim 8 or 9 described methods, it is characterized in that described key sets in advance; Perhaps, receive respectively with described the 3rd image.
11, a kind of image processing method is characterized in that, this method comprises:
Determine the position of the shielded image in first image, and store the positional information of described shielded image,, described shielded image is carried out image scrambling handle, obtain second image, with described second image output according to the positional information of described shielded image;
Receive described second image, and according to the positional information of described shielded image, and the key that is used to recover described shielded image,, obtain and show described first image the random processing that is inverted of described shielded image.
12, method according to claim 11 is characterized in that, the positional information of described shielded image is embedded in described second image.
13, a kind of device to blocking special position of image is characterized in that, this device comprises:
The shielded image position determination unit is used for determining the position of the shielded image of first image and the positional information of storing described shielded image;
The image scrambling unit is used for the positional information according to described shielded image, described shielded image is carried out image scrambling handle, and obtains second image.
14, device according to claim 13 is characterized in that, this device also comprises:
Embed the unit, be used for the positional information of described shielded image is embedded described second image, obtain the 3rd image.
15, according to claim 13 or 14 described devices, it is characterized in that this device also comprises:
Normalization unit is used for standardization processing is carried out in the position of described shielded image;
Then the positional information of described shielded image is the positional information through the shielded image after the described standardization processing.
16, device according to claim 14 is characterized in that, this device also comprises:
Coding unit is used for the positional information of described shielded image is encoded;
Described embedding unit will embed through the positional information of the shielded image behind the described coding in described second image.
17, device according to claim 15 is characterized in that, this device also comprises:
Compression unit is used for described second image is compressed.
18, device according to claim 17 is characterized in that, described normalization unit, and the yardstick of the macro block that adopts when according to described compression unit image being compressed standardizes to the position of described shielded image.
19, device according to claim 13 is characterized in that, this device also comprises:
Generate cipher key unit, be used for parameter with described image scrambling as the key that recovers described shielded image.
20, a kind of display unit of image is characterized in that, this device comprises:
Receiving element is used to receive the 3rd image through after the image scrambling processing;
Information extraction unit is used for extracting the positional information of the shielded image that embeds described the 3rd image;
The image random unit that is inverted is used for the positional information according to described shielded image, and the key that is used to recover described shielded image, to the random processing that is inverted of the shielded image in described the 3rd image, obtains first image;
Display unit is used to show described first image.
21, device according to claim 20 is characterized in that, this device also comprises:
Decoding unit when being used for the positional information of the shielded image after the positional information of described shielded image is the process encoding process, is decoded to the positional information of described shielded image;
The described image random unit that is inverted is according to the positional information through described decoded shielded image, and described key, to the unrest that is inverted of described shielded image.
22, according to claim 20 or 21 described devices, it is characterized in that this device also comprises:
Cipher key unit is used for storing in advance described key, perhaps receives described key respectively with described the 3rd image.
23, a kind of image processing system is characterized in that, this system comprises:
Image blocks transmitting device, is used for the position of the shielded image of definite first image, and the positional information of storing described shielded image, positional information according to described shielded image, described shielded image is carried out image scrambling handle, obtain second image, with described second image output;
Image display device is used to receive described second image, and according to the positional information of described shielded image, and the key that is used to recover described shielded image, to the random processing that is inverted of described shielded image, obtain described first image, and show described first image.
24, system according to claim 23 is characterized in that, the positional information of described shielded image is embedded in described second image.
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| CN 200710145379 CN101389005A (en) | 2007-09-11 | 2007-09-11 | Method and apparatus blocking special position of image |
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| CN 200710145379 CN101389005A (en) | 2007-09-11 | 2007-09-11 | Method and apparatus blocking special position of image |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848378A (en) * | 2010-06-07 | 2010-09-29 | 中兴通讯股份有限公司 | Domestic video monitoring device, system and method |
| CN103167216A (en) * | 2011-12-08 | 2013-06-19 | 中国电信股份有限公司 | Image shielding method and system |
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2007
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| CN101848378A (en) * | 2010-06-07 | 2010-09-29 | 中兴通讯股份有限公司 | Domestic video monitoring device, system and method |
| CN103167216B (en) * | 2011-12-08 | 2016-12-14 | 中国电信股份有限公司 | Image masking processing method and system |
| CN103167216A (en) * | 2011-12-08 | 2013-06-19 | 中国电信股份有限公司 | Image shielding method and system |
| CN103179378A (en) * | 2011-12-26 | 2013-06-26 | 天津市亚安科技股份有限公司 | Video monitoring device with privacy sheltering function and privacy sheltering method |
| CN103685349A (en) * | 2012-09-04 | 2014-03-26 | 联想(北京)有限公司 | Method for information processing and electronic equipment |
| CN103685349B (en) * | 2012-09-04 | 2017-03-01 | 联想(北京)有限公司 | A kind of method of information processing and a kind of electronic equipment |
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| CN104966266A (en) * | 2015-06-04 | 2015-10-07 | 福建天晴数码有限公司 | Method and system to automatically blur body part |
| CN104966266B (en) * | 2015-06-04 | 2019-07-09 | 福建天晴数码有限公司 | The method and system of automatic fuzzy physical feeling |
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| CN108039008A (en) * | 2017-12-29 | 2018-05-15 | 英华达（南京）科技有限公司 | Intelligent video monitoring method, apparatus and system |
| CN111385512A (en) * | 2018-12-29 | 2020-07-07 | 杭州海康威视数字技术股份有限公司 | Video data processing method and device |
| CN111385512B (en) * | 2018-12-29 | 2022-11-01 | 杭州海康威视数字技术股份有限公司 | Video data processing method and device |
| CN111667415A (en) * | 2019-03-08 | 2020-09-15 | 睿传数据股份有限公司 | De-identification method and system and method for generating template data |
| CN110084146A (en) * | 2019-04-08 | 2019-08-02 | 清华大学 | Based on the pedestrian detection method and device for blocking perception self-supervisory study |
| CN111432286A (en) * | 2019-12-31 | 2020-07-17 | 杭州海康威视数字技术股份有限公司 | Video processing method, device and system |
| CN111432286B (en) * | 2019-12-31 | 2022-05-20 | 杭州海康威视数字技术股份有限公司 | Video processing method, device and system |
| CN111654700A (en) * | 2020-06-19 | 2020-09-11 | 杭州海康威视数字技术股份有限公司 | Privacy mask processing method and device, electronic equipment and monitoring system |
| CN111654700B (en) * | 2020-06-19 | 2022-12-06 | 杭州海康威视数字技术股份有限公司 | Privacy mask processing method and device, electronic equipment and monitoring system |
| WO2023216088A1 (en) * | 2022-05-10 | 2023-11-16 | Qualcomm Incorporated | Privacy control of images based on content |
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