WO2016058450A1 - 用于信息处理的图像码及生成与解析其的装置与方法 - Google Patents
用于信息处理的图像码及生成与解析其的装置与方法 Download PDFInfo
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- WO2016058450A1 WO2016058450A1 PCT/CN2015/088043 CN2015088043W WO2016058450A1 WO 2016058450 A1 WO2016058450 A1 WO 2016058450A1 CN 2015088043 W CN2015088043 W CN 2015088043W WO 2016058450 A1 WO2016058450 A1 WO 2016058450A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
- G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
- G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
- G06T1/0064—Geometric transfor invariant watermarking, e.g. affine transform invariant
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06131—Constructional details the marking comprising a target pattern, e.g. for indicating the center of the bar code or for helping a bar code reader to properly orient the scanner or to retrieve the bar code inside of an image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0007—Image acquisition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0051—Embedding of the watermark in the spatial domain
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0053—Embedding of the watermark in the coding stream, possibly without decoding; Embedding of the watermark in the compressed domain
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0203—Image watermarking whereby the image with embedded watermark is reverted to the original condition before embedding, e.g. lossless, distortion-free or invertible watermarking
Definitions
- the invention belongs to the field of image processing and automatic identification, and in particular relates to an image code for information processing and an apparatus and method for generating and analyzing the same.
- QR code has gradually become the keyboard of smartphones, the access point of the Internet, and is widely used in various fields of society and in our daily lives.
- the existing two-dimensional code can not directly or initially display the information it contains, and often requires additional text description; and its black and white pattern is dull and mechanical, not beautiful enough, with beautiful posters, business cards, and packaging of high-end goods.
- the patent application CN 103632182 A proposes a method for generating and parsing a three-dimensional image code, which uses a partial region in the middle of the two-dimensional code as an image region for display.
- a picture related to the content of the two-dimensional code, and a black-and-white square of the two-dimensional code is replaced by a square of four colors. This method improves the aesthetics of the two-dimensional code to some extent, but it is not much different from the black-and-white QR code.
- the digital watermarking technology can form the electronic watermark information by embedding the image-related information into the image (also referred to as the embedding process of the watermark information) by the image encoding software without destroying the quality of the electronic image.
- the electronic watermark information buried in the image can be read by the image decoding software (also referred to as the detection process of the watermark information).
- Implanted electronic watermark information is difficult to be tampered with or forged. Therefore, traditional digital watermarking technology is usually used for copyright protection of electronic images.
- the current digital watermarking technology has been developed to be able to detect watermark information buried in an image by photographing a printed image with watermark information through a smart phone.
- Digital watermark image code (also known as “image code”) is a digital watermarking technology that embeds web address information (or ID information representing a web address) into an image, and at the same time, photographs a watermark with a smart phone.
- the image (or the image displayed on the electronic screen) detects the URL information buried in the image, allowing the phone to automatically connect to the website of the URL.
- the digital watermark image code can ensure the integrity of the image and can be directly used as a two-dimensional code, thus having more personalized space and great market potential.
- the present invention provides an image code suitable for fast image recognition in a handheld communication device and a method of generating and parsing the same to solve the above problems.
- An image code for information processing comprising a standard image area, at least one image filled in the standard image area, at least one segment being implanted in the at least one image by using a digital watermarking technique
- An information stream and four position identification patterns disposed at different positions of the standard image area, the position identification patterns being disposed at four vertex angles of the standard image area, including one feature position identification pattern and three basic positions a logo pattern; the three basic position identification patterns are identical and the feature position identification pattern is different from the basic position identification pattern, and the position identification pattern includes a dark middle portion, a white inner ring, a dark inner ring, and a white outer ring, wherein The area of the dark middle portion of the basic position identification pattern is different from the area of the dark middle portion of the feature position identification pattern.
- the position identification pattern comprises a dark central portion, a white inner ring, a dark inner ring and a white outer ring.
- the area of the dark middle portion of the basic position identification pattern is different from the area of the dark middle portion of the feature position identification pattern.
- the position identification pattern is a square area, wherein the dark middle portion, the white inner ring, the dark inner ring and the white outer ring are also square areas, and the dark middle and dark inner rings are black central and Black inner ring;
- the horizontal feature identification pattern has a horizontal feature ratio and a vertical feature ratio of each part of the divided region: 1:1:1:3:1:1:1; the horizontal feature scale and vertical feature of the feature position identification graphic The ratio is 1:1:1:1:1:1:1.
- the standard image area is a square area.
- the present invention also discloses an apparatus for generating an image code for information storage, delivery, and identification, and the apparatus for generating an image code for information storage, delivery, and identification includes:
- An image adjustment module for adjusting an image related to information to be implanted to adapt to a standard image area
- a digital watermark embedding module which uses digital watermark coding technology to embed information to be implanted into the image
- a position identification setting module configured to respectively place four position identification patterns (P0, P1, P2, P3) in four corners of the standard image area, wherein one feature position identification pattern is included ( P3) and three basic position identification patterns (P0, P1, P2); the three basic position identification patterns (P0, P1, P2) are identical and different from the feature position identification pattern (P3);
- An image code generating module is configured to synthesize watermark information, an image, and a position indication graphic to generate the image code.
- the invention also discloses a method for generating an image code, comprising the following steps:
- a position identification setting module is provided to respectively place four position identification patterns (P0, P1, P2, P3) at four vertex angles of the standard image area, wherein one feature position identification pattern (P3) and 3 basic position identification patterns (P0, P1, P2); the three basic position identification patterns (P0, P1, P2) are identical and different from the feature position identification pattern (P3);
- An image code generating module is provided to generate an image code.
- the position identification pattern placed in the step (3) comprises a dark middle portion, a white inner ring, a dark inner ring and a white outer ring, wherein the basic position identification pattern is horizontally characterized by the partial divided area.
- the ratio of the proportional and vertical features are 1:1:1:3:1:1:1; the horizontal feature ratio and the vertical feature ratio of the feature position identification pattern are 1:1:1:1:1:1:1
- the side position identification pattern and the side length of the feature identification pattern are both 1/10 to 1/4 of the side length of the image.
- the step of registering the information to be implanted in the server database before generating the image code is further included.
- the present invention also discloses an apparatus for parsing an image code for information storage, delivery, and identification, and the apparatus for parsing an image code for information storage, delivery, and identification includes:
- An image acquisition device for acquiring an image code
- An image processing module for performing image processing on the generated image code image
- a position identification graphic positioning module configured to locate four position identification patterns in the actual image and identify the feature position identification pattern
- the calculation module is centered on the feature position identification graphic, and calculates position coordinates of the three basic position identification patterns in the standard image area according to the positional relationship with the three basic position identification patterns in the actual image;
- An image correction module that corrects the generated image code image into a standard image format by a Perspective and a Bilinear Interpolation principle
- An information decoding module that uses digital watermark decoding technology to acquire information embedded in a standard image.
- the invention also discloses a method for parsing an image code, comprising the following steps:
- An information decoding module is provided to acquire information embedded in the standard image by using digital watermark decoding technology.
- the step (5) further comprises:
- f(x i , y i ) [f(x′ 1 , y′ 0 ) ⁇ f(x′ 0 , y′ 0 )] ⁇ (x i ' ⁇ x′ 0 )+[f(x′ 0 , y' 1 )-f(x' 0 , y' 0 )] ⁇ (y′ i -y′ 0 )
- the step (3) of identifying the feature position identification pattern is implemented by calculating and comparing the dark central area values of the four position identification patterns.
- the information in the image code can be quickly obtained through the handheld communication device, and the fast connection between the handheld communication device and the Internet can be realized by using the image (graphics) own content
- the image code has the following advantages: the image code is more beautiful and can visually display the information content therein; the content information is more secure and difficult to be tampered with or forged; and the four positioning points used in the present invention are 3 The same is composed of one different four positioning points. Pespective transformation can be used to correct the angular rotation within 360 degrees at the same time, and correct the deformation and proportion of the mobile phone image.
- FIG. 1 is a block diagram showing the structure of an image code of the present invention
- Figure 2 is a detailed structural diagram of the basic position identification pattern of Figure 1;
- Figure 3 is a detailed structural view of the feature position identification pattern of Figure 1;
- Figure 4 is a schematic block diagram of an apparatus for generating an image code of the present invention.
- Figure 5 is a flow chart showing a method of generating an image code of the present invention.
- Figure 6 is a diagram of an apparatus for parsing an image code of the present invention.
- FIG. 8 is a schematic diagram of an image after binarization processing
- Figure 9 is a schematic diagram of the principle of the Perspective transform
- Figure 10 is a bilinear interpolation principle diagram of coordinates
- Figure 11 is a schematic diagram of the decoding process of digital watermark information.
- the identification of image code is limited by its own resources.
- the main technical problems are as follows: (1) the image is out of proportion due to the uncertainty of the distance between the mobile phone and the image; (2) due to the camera and image of the mobile phone Image angle rotation caused by the uncertainty of the horizontal angle; (3) Image type deformation due to the non-parallel of the camera plane and the image plane.
- the above technical problem causes the handheld communication device to have problems such as slow processing speed and high false recognition rate when identifying the image code, which greatly affects the practical application of the image code.
- the handheld communication device is a device that has an image acquisition device (such as a CCD) and can communicate with the Internet (such as by wifi, Bluetooth, cellular network, etc.), the handheld communication device includes a mobile phone, an Ipad, and has communication. Functional cameras, e-books and other similar electronic devices.
- the present invention proposes image codes for information storage, transfer and identification, which are typically printed on the surface of a carrier (the carrier comprising Paper, plastic, metal, fabric, building, etc.), or displayed on an electronic screen.
- a carrier the carrier comprising Paper, plastic, metal, fabric, building, etc.
- FIG. 1 there is shown a block diagram of the image code of the present invention, comprising a standard image area (40), at least one image filled in the standard image area (40).
- the image is typically a non-black and white square image, including company logos, photos, and the like.
- the standard image area (40) is used to fill an image and use a digital watermark encoding technique to place a letter to be implanted
- the information is embedded in the image; in a preferred embodiment, the standard image area (40) is a square area.
- the shape of the outer contour of the image is not limited, and may be a positive direction having a regular shape, a circular shape, or an irregular shape.
- the position identification pattern is used for positioning of the image code, and is disposed at four vertex angles of the standard image area, and the position identification pattern includes one feature position identification pattern and three basic position identification patterns.
- the three basic position identification patterns are identical and the feature position identification pattern is different from the basic position identification pattern.
- the feature location identification graphic has an area that is smaller than the basic location identification graphic. As shown in FIG.
- (40) is a standard image area surrounded by image frame positions; (P0), (P1), (P2), and (P3) are position identification patterns of 0-3; ), (P1), (P2) is the basic position identification pattern, (P3) is the feature position identification pattern; (P0), (P1), (P2) the frame of the figure and the standard of the three top corner parts of the image
- the frame of the image area (40) is aligned; the dotted line (41) is a square connection line formed by the coordinates of the three center points of (P0), (P1), (P2); (P3) placed with the fourth top
- the angular position moves the center point of (P3) to the apex position (42) of the square dotted line (41).
- the position identification pattern includes a dark middle portion, a white inner ring, a dark inner ring, and a white outer ring, wherein the area of the dark middle portion of the basic position identification pattern is different from the area of the dark middle portion of the feature position identification pattern.
- the position identification pattern is a square area in which the dark middle portion, the white inner ring, the dark inner ring and the white outer ring are also square areas, the dark middle and dark inner rings It is a black middle portion and a black inner ring; see Fig.
- (50) is a black middle portion; (51) is a white inner ring; (52) is a black inner ring; (53) It is a white outer ring.
- the color of the black portion may also be a dark color other than black; the shape of the portion of (50) (51) (52) (53), and may be a shape other than a square.
- the horizontal feature ratio and vertical feature ratio of the divided regions are 1:1:1:3:1:1:1.
- the side position of the basic position identification pattern is 1/10 to 1/4 of the side length of the image.
- Fig. 3 there is shown a detailed structural diagram of the feature position identification pattern, similar to Fig. 2, wherein (60) is a black middle portion; (61) is a white inner ring; (62) is a black inner ring; (63) is White outer ring. among them
- the color of the black portion may also be a dark color other than black; the shape of the portion of (60) (61) (62) (63), and may be other shapes than square.
- the difference is that the horizontal feature ratio and the vertical feature ratio are 1:1:1:1:1:1:1.
- the side length of the feature position identification graphic is 1/10 to 1/4 of the side length of the image.
- the method can realize the correction of the angle of the image and the deformation of the table by the perspective transformation (Perspective Transform), Since four identical positioning marks are used, the correction can only be limited to an angle of 90 degrees (between -45 degrees and +45 degrees).
- the four positioning points of the image code embedded with the watermark information provided by the invention are composed of three identical basic position identification patterns and one different feature position identification pattern, which can quickly locate the feature position identification pattern through the perspective drawing method.
- the Perspective Transform corrects the shape deformation, proportional misalignment, and angular rotation of the 360-degree range of the phone image at the same time. That is, the image code provided by the present invention can be quickly and accurately identified by the handheld communication device, so that the watermark technique can be successfully applied to the image code.
- the present invention also provides an apparatus for generating an image code for information storage, delivery, and identification.
- FIG. 4 a block diagram of an apparatus for generating an image code for information storage, transfer, and identification is shown, mainly including an image.
- the image adjustment module is configured to adjust an image related to the information to be implanted to adapt to the standard image area;
- the standard image area (40) in the image code is a pre-agreed image format, and the image is filled before the standard image area (40), and is required
- the image is adjusted to the corresponding image format by the image adjustment module.
- the digital watermark embedding module is used to embed the information to be implanted into the image by using digital watermark coding technology;
- the digital watermark coding technology is a mature image coding technology in the prior art, and can digitally not destroy the original image.
- Information is embedded in the image.
- the position identification setting module is configured to respectively place four position identification patterns (P0, P1, P2, P3) in four corners of the standard image area, wherein one feature position identification pattern (P3) and three basic positions are included. Identification patterns (P0, P1, P2); the three basic position identification patterns (P0, P1, P2) are identical and different from the feature position identification pattern (P3);
- the image code generation module is configured to combine the watermark, the image, and the position indication graphic to generate the image code.
- the invention also provides a method for generating an image code.
- FIG. 5 it is a flowchart of a method for generating an image code according to the present invention. The specific steps are as follows:
- An image adjustment module is provided to adjust the image associated with the information to be implanted to fit the standard image area; generally selected images are associated with the information to be implanted.
- the image format is adjusted to fit the agreed standard image area.
- the standard image area is a square image area.
- a position identification setting module is provided to respectively place four position identification patterns (P0, P1, P2, P3) at four vertex angles of the standard image area, wherein one feature position identification pattern (P3) and 3 basic position identification patterns (P0, P1, P2); the three basic position identification patterns (P0, P1, P2) are identical and different from the feature position identification pattern (P3);
- An image code generating module is provided to generate an image code.
- the image code generated by the image code generating apparatus and method using the above technical solution is composed of three identical basic position identification patterns and one different feature position identification pattern, so that the feature position identification pattern can be quickly located when the mobile phone processes the image code.
- the Pespective transform is used to correct the angular rotation within the 360-degree range, and to correct the deformation and proportionality of the mobile phone image.
- the image code stores a limited amount of information.
- the image code is to be implanted before being generated.
- the representative website ID information is embedded in the image, and the website ID information and the website address information are registered in the server database; correspondingly, when decoding, the obtained website address information can be used to find the corresponding website information in the server database. .
- the present invention also provides an apparatus for parsing image codes for information storage, delivery, and identification.
- the device is a handheld communication device.
- the handheld communication device has an image acquisition device (such as a CCD) and can communicate with the Internet (such as a communication method via wifi, Bluetooth, cellular network, etc.), the handheld communication device includes a mobile phone, an Ipad, a camera with communication function, and an electronic device. Books and similar electronic devices.
- FIG. 6 a schematic block diagram of an apparatus for parsing an image code for information storage, transfer, and identification, including an image acquisition device, an image processing module, a position identification graphic positioning module, a calculation module, an image correction module, and an information decoding module is shown. ,among them:
- the image acquisition device is configured to acquire an image code
- the image processing module is configured to perform image processing on the generated image code image
- the position identification graphic positioning module is configured to locate four position identification patterns in the actual image and identify the feature position identification pattern;
- the calculation module is configured to center on the feature position identification graphic, and calculate position coordinates of the three basic position identification patterns in the standard image area according to the positional relationship with the three basic position identification patterns in the actual image;
- the image correction module is configured to correct the generated image code image into a standard image format by using a perspective transformation and a bilinear interpolation principle of coordinates;
- the information decoding module uses digital watermark decoding technology to acquire information embedded in the standard image.
- the invention also proposes a method for parsing image code.
- FIG. 7 a flow chart of the image code parsing method of the present invention is shown. The specific steps are as follows:
- the identification feature position identification graphic is realized by calculating and comparing the dark central area values of the four position identification patterns, and the specific steps are as follows: calculating the black portion area of the middle of the four position detection patterns, and comparing the four position detection patterns. The area of the black part of the middle portion is found to be different from the other three position identification patterns in the black middle area, as shown in Fig. 8, wherein the position identification pattern No. 3 is the feature position identification pattern, and the position coordinates thereof are calculated.
- the central black area of the feature position identification pattern is 1/9 of the black area of the middle of the basic position identification pattern.
- An image correction module is provided to correct the generated image code image into a standard image format by the principle transformation and the bilinear interpolation principle of the coordinates; that is, through the Perspective transformation (the following formula 1) and the bilinear interpolation of the coordinates (see below) Equation 2) Find the standard image.
- An information decoding module is provided to acquire information embedded in the standard image by using digital watermark decoding technology.
- FIG 11 there is shown a schematic diagram of a decoding process of digital watermark information, using the digital watermark decoder (131) to detect information from the corrected image (130) (132); if the detected information is a URL registered at the server
- the ID information is retrieved from the server database by the server database; the corresponding web page (136) is displayed on the screen (137) of the handheld communication device by the detected (or retrieved) web address information.
- step (5) further includes:
- Equation 1 The a, b, c, d and m, n, p, q8 parameters in Equation 1 can be obtained by combining 8 sets of data, pi'(xi, yi) (0 ⁇ i ⁇ 3) and pi (xi, yi) ( 0 ⁇ i ⁇ 3) is substituted into Equation 1.
- the small circle black point (xi', yi') is the coordinate value (floating point decimal) of the image before correction calculated by the formula 1; the coordinate values of the four small circles x0', y0', x0', y1', X1', y0', (x1', y1') are the coordinate values of the floating point fraction (xi', yi') after taking the integer; respectively, where x0' and x1' are the decimal points of xi', respectively, downward and upward integers.
- the value (x0' ⁇ xi' ⁇ x1'); y0' and y1' are the integer values of the decimal point of yi' downward and upward, respectively (y0' ⁇ yi' ⁇ y1').
- f(x i , y i ) [f(x′ 1 , y′ 0 ) ⁇ f(x′ 0 , y′ 0 )] ⁇ (x i ' ⁇ x′ 0 )+[f(x′ 0 , y' 1 )-f(x' 0 , y' 0 )] ⁇ (y′ i -y′ 0 )
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Abstract
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Claims (10)
- 一种用于信息处理的图像码,其特征在于:所述图像码包括一个标准图像区,至少一幅填充于所述标准图像区中的图像,至少一段采用数字水印技术植入所述至少一幅图像中的信息流,以及4个设置在所述标准图像区不同位置的位置标识图形,所述位置标识图形设置在所述标准图像区的4个顶角,包括1个特征位置标识图形和3个基本位置标识图形;所述3个基本位置标识图形完全相同且所述特征位置标识图形不同于基本位置标识图形,位置标识图形包括深色中部、白色内环、深色内环和白色外环,其中,所述基本位置标识图形的深色中部的面积不同于特征位置标识图形的深色中部的面积。
- 根据权利要求1所述的用于信息处理的图像码,其特征在于,所述位置标识图形为正方形区域,其内的深色中部、白色内环、深色内环和白色外环也为正方形区域,所述深色中部和深色内环为黑色中部和黑色内环;所述基本位置标识图形由其内各部分分割区域的水平特征比例和垂直特征比例均为1:1:1:3:1:1:1;所述特征位置标识图形的水平特征比例和垂直特征比例均为1:1:1:1:1:1:1。
- 一种生成用于信息存储、传递以及识别的图像码的装置,其特征在于,所述生成用于信息存储、传递以及识别的图像码的装置包括:一个图像调整模块,该图像调整模块用于调整与待植入信息相关的图像以适应标准图像区域;一个数字水印植入模块,该数字水印植入模块利用数字水印编码技术,将待植入信息埋入图像中;一个位置标识设置模块,该位置标识设置模块用于在标准图像区域的4个顶角分别置入4个位置标识图形(P0,P1,P2,P3),其中,包括1个特征位置标识图形(P3)和3个基本位置标识图形(P0,P1,P2);所述3个基本位置标识图形(P0,P1,P2)完全相同且与所述特征位置标识图形(P3)不相同;以及一个图像码生成模块,该图像码生成模块将水印信息、图像以及位置标示图形合成一体以生成所述图像码。
- 一种图像码的生成方法,其特征在于,包括以下步骤:提供一个图像调整模块以调整与待植入信息相关的图像以适应标准图像区域;提供一个数字水印植入模块以利用数字水印编码技术,将待植入信息埋入图像中;提供一个位置标识设置模块以在标准图像区域的4个顶角分别置入4个位置标识图形(P0,P1,P2,P3),其中,包括1个特征位置标识图形(P3)和3个基本位置标识图形(P0,P1,P2);所述3个基本位置标识图形(P0,P1,P2)完全相同且与所述特征位置标识图形(P3)不相同;以及提供一个图像码生成模块以生成图像码。
- 根据权利要求6所述的图像码的生成方法,其特征在于,所述步骤(3)中置入的位置标识图形包括深色中部、白色内环、深色内环和白色外环,其中,所述基本位置标识图形由上述部分分割区域的水平特征比例和垂直特征比例均为1:1:1:3:1:1:1;所述特征位置标识图形的水平特征比例和垂直特征比例均为1:1:1:1:1:1:1。
- 根据权利要求4或5所述的生成方法,其特征在于,还包括在生成图像码前将待植入信息在服务器数据库中登记的步骤。
- 一种解析用于信息存储、传递以及识别的图像码的装置,其特征在于:所述解析用于信息存储、传递以及识别的图像码的装置包括:一个影像获取装置,该影像获取装置用于获取图像码;一个图像处理模块,该图像处理模块用于对生成的图像码图像进行图像处理;一个位置标识图形定位模块,该位置标识图形定位模块用于定位实际图像中4个位置标识图形并识别特征位置标识图形;一个计算模块,该计算模块以特征位置标识图形为中心,并根据与实际图像中3个基本位置标识图形的位置关系,计算出标准图像区域中3个基本位置标识图形的位置坐标;一个图像矫正模块,该图像矫正模块通过Perspective变换和坐标的双线性插值原理将生成的图像码图像矫正为标准图像格式;以及一个信息解码模块,该信息解码模块利用数字水印解码技术,获取标准图像中所植入的信息。
- 一种图像码的解析方法,其特征在于,包括以下步骤:(1)提供一个影像获取装置以获取图像码;(2)提供一个图像处理模块以对生成的图像码图像进行图像处理;(3)提供一个位置标识图形定位模块以定位实际图像中4个位置标识图形并识别特征位置标识图形;(4)提供一个计算模块以特征位置标识图形为中心,并根据与实际图像中3个基本位置标识图形的位置关系,计算出标准图像区域中3个基本位置标识图形的位置坐标;(5)提供一个图像矫正模块以通过Perspective变换和坐标的双线性插值原理将生成的图像码图像矫正为标准图像格式;以及(6)提供一个信息解码模块以利用数字水印解码技术,获取标准图像中所植入的信息。
- 根据权利要求8所述的图像码解析方法,其特征在于,所述步骤(5)进一步包括:(a)根据实际图像中4组位置标识图形的位置坐标pi′(xi,yi)(0≤i≤3)以及矫正后的标准图像的4组顶角的位置坐标pi(xi,yi)(0≤i≤3)(0≤xi≤255,0≤yi≤255)代入以下公式1求出a,b,c,d与m,n,p,q的8个参数值;xi'=axi+byi+cxiyi+d(0≤i≤3)yi'=mxi+nyi+pxiyi+q(0≤i≤3) 公式(1)(b)将矫正前的图像的坐标值(0≤xi≤255,0≤yi≤255)代入公式1,计算出矫 正前的图像中的相应坐标值(xi′,yi′);(c)根据坐标的双线性插值原理,计算出与坐标值(xi′,yi′)向上与向下求整后的4个坐标值(x0′,y0′)、(x0′,y1′)、(x1′,y0′)、(x1′,y1′);(d)将双线性插值计算后的4个坐标值(x0′,y0′)、(x0′,y1′)、(x1′,y0′)、(x1′,y1′)的图像像素值f(x0′,y0′)、f(x0′,y1′)、f(x1′,y0′)、f(x1′,y1′)代入以下公式2,求得Perspective变换后的图像像素值f(xi,yi)(0≤xi≤255,0≤yi≤255);f(xi,yi)=[f(x′1,y′0)-f(x′0,y′0)]×(xi'-x′0)+[f(x′0,y′1)-f(x′0,y′0)]×(yi′-y′0)+[f(x′1,y′1)+f(x′0,y′0)-f(x′0,y′1)-f(x′1,y′0)]×(xi′-x′0)×(yi′-y′0)+f(x′0,y′0) 公式(2)(e)重复步骤(b)至(d)求出标准图像。
- 根据权利要求8或9所述的图像码解析方法,其特征在于,所述步骤(3)识别特征位置标识图形是通过计算并比较4个位置标识图形的深色中部面积值来实现的。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110049379A (zh) * | 2019-05-09 | 2019-07-23 | 集美大学 | 一种视频延时检测方法及系统 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104778491B (zh) * | 2014-10-13 | 2017-11-07 | 刘整 | 用于信息处理的图像码及生成与解析其的装置与方法 |
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US11843395B2 (en) | 2019-07-05 | 2023-12-12 | Hangzhou Hikrobot Co., Ltd. | Coding pattern, coding and reading methods for same, calibration board, and calibration method |
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CN113688645B (zh) * | 2021-08-11 | 2023-11-03 | 广州爱格尔智能科技有限公司 | 一种识别方法、系统及设备 |
CN117275297B (zh) * | 2023-11-23 | 2024-03-08 | 泰州爱贝文化传媒有限公司 | 一种学前教育用图像识别语言播报设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1444145A (zh) * | 2002-03-07 | 2003-09-24 | 温天 | 数字条码水印及防伪方法 |
CN101088100A (zh) * | 2004-11-05 | 2007-12-12 | 卡勒兹普麦迪亚公司 | 混合码,产生混合码的方法和装置,以及对混合码进行解码的方法和装置 |
CN104778491A (zh) * | 2014-10-13 | 2015-07-15 | 刘整 | 用于信息处理的图像码及生成与解析其的装置与方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303313A (en) * | 1991-12-16 | 1994-04-12 | Cartesian Products, Inc. | Method and apparatus for compression of images |
JP3887947B2 (ja) * | 1998-05-12 | 2007-02-28 | 株式会社デンソー | 2次元コードの読取方法及び記録媒体 |
US6572025B1 (en) * | 2000-05-10 | 2003-06-03 | Japan Gain The Summit Co., Ltd. | Information code product, manufacturing device and method for manufacturing the same, information code reading device, authentication system, authentication terminal, authentication server, and authentication method |
JP4031268B2 (ja) * | 2002-03-08 | 2008-01-09 | 株式会社リコー | コンピュータ入力装置、方法、コンピュータ入力システム、及び該システムにおける入力方法 |
JP4301775B2 (ja) * | 2002-07-18 | 2009-07-22 | シャープ株式会社 | 2次元コード読み取り装置,2次元コード読み取り方法,2次元コード読み取りプログラム及び該プログラムの記録媒体 |
JP4491287B2 (ja) * | 2004-06-21 | 2010-06-30 | アライ株式会社 | 2次元コード,2次元コードの形成装置及び形成方法並びに2次元コードの読取装置及び読取方法 |
JP2007090448A (ja) * | 2005-09-27 | 2007-04-12 | Honda Motor Co Ltd | 二次元コード検出装置及びそのプログラム、並びに、ロボット制御情報生成装置及びロボット |
JP4635889B2 (ja) * | 2006-02-02 | 2011-02-23 | 株式会社デンソーウェーブ | 携帯型二次元コード読取装置 |
CN100456314C (zh) * | 2007-05-31 | 2009-01-28 | 中国农业大学 | 基于聊天用摄像头的快速响应矩阵码识读方法 |
CN101359360A (zh) * | 2008-07-31 | 2009-02-04 | 刘旭 | 一种图文融合的电子票编解码方法 |
JP2013114625A (ja) * | 2011-11-30 | 2013-06-10 | A T Communications Co Ltd | 移動体通信端末、決済システム、決済方法、及びプログラム |
CN102663600B (zh) * | 2012-01-17 | 2014-03-12 | 付强 | 基于数字水印和条码的防伪系统及其防伪方法和应用 |
US9342611B2 (en) * | 2012-06-22 | 2016-05-17 | Paychief Llc | Systems and methods for transferring personal data using a symbology |
CN103310252B (zh) * | 2012-10-29 | 2014-10-22 | 成都菲普迪斯科技有限公司 | Ccqr码防伪标识 |
CN103745221B (zh) * | 2014-01-08 | 2017-05-24 | 杭州晟元数据安全技术股份有限公司 | 一种二维码图像矫正方法 |
-
2015
- 2015-04-16 CN CN201510180423.0A patent/CN104778491B/zh active Active
- 2015-08-25 JP JP2017515822A patent/JP6513799B2/ja not_active Expired - Fee Related
- 2015-08-25 WO PCT/CN2015/088043 patent/WO2016058450A1/zh active Application Filing
- 2015-08-25 US US15/508,008 patent/US20170293992A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1444145A (zh) * | 2002-03-07 | 2003-09-24 | 温天 | 数字条码水印及防伪方法 |
CN101088100A (zh) * | 2004-11-05 | 2007-12-12 | 卡勒兹普麦迪亚公司 | 混合码,产生混合码的方法和装置,以及对混合码进行解码的方法和装置 |
CN104778491A (zh) * | 2014-10-13 | 2015-07-15 | 刘整 | 用于信息处理的图像码及生成与解析其的装置与方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110049379A (zh) * | 2019-05-09 | 2019-07-23 | 集美大学 | 一种视频延时检测方法及系统 |
CN110049379B (zh) * | 2019-05-09 | 2020-03-24 | 集美大学 | 一种视频延时检测方法及系统 |
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