TW201405346A - Method for generating image barcode and navigation image, computer program product and navigation device - Google Patents

Abstract

The present invention provides a method for generating navigation images for photo navigation, which includes the following steps: (A) receiving the image data of an image barcode, in which the image barcode includes a reference barcode and an embedded picture combined with the reference barcode; the reference barcode has multiple square spots for correspondingly presenting a location information and an actual picture coordinate; the embedded picture is presented with the appearance of a location and has its size compliant with the fault tolerance standard of the reference barcode; the location information contains the longitude and latitude coordinates corresponding to the location; and the actual picture coordinate is presented with the square spot positions of the embedded picture in the reference barcode; (B) analyzing the image barcode to obtain the location information and the actual picture coordinate; (C) extracting the embedded picture from the image data of the image barcode according to the actual picture coordinate and the size of image barcode; and (D) storing the location information in the embedded picture to generate the navigation image.

Description

Method for generating image barcode and navigation image, computer program product and navigation device

The present invention relates to a method of generating and reading navigation information, and more particularly to a method for generating and reading navigation information of a two-dimensional barcode pattern.

Photo navigation is a common application technology for current car navigation devices and handheld navigation devices. For example, the Republic of China Certificate No. I352192 discloses a satellite navigation system using photo navigation technology. The satellite navigation system can display a plurality of navigation images, and the navigation images respectively store information such as a place name and a latitude and longitude coordinates through an exchangeable image file format (Exif) for reading by the satellite navigation system. Plan the route of travel after taking it. However, the current practice of updating the navigation image of the satellite navigation system is usually to connect the satellite navigation system to a computer and update it through the network or computer memory, which is complicated and inconvenient to implement.

Accordingly, it is an object of the present invention to provide a method of generating an image barcode that facilitates a user to obtain location information or to update a navigation image in a navigation device using a navigation device.

Therefore, the present invention generates an image barcode method, comprising the following steps: (A) reading a location information about a place, an original picture, and a tentative picture coordinate; (B) according to the location information and the tentative picture The coordinates generate an original barcode comprising a plurality of square points arranged in an array and at least one alignment symbol not overlapping the square points, the location information Including a latitude and longitude coordinate representing the location, the tentative picture coordinates include at least one set of tentative picture coordinate values of the original picture in the original barcode; (C) adjusting the original picture to become an embedded picture according to the size of the original barcode Having the size of the embedded picture conform to the fault tolerance standard of the original bar code; (D) superimposing the embedded picture on the original bar code where the position of the alignment symbol is not set, and comparing the corresponding picture in the original bar code to the embedded picture Point-pointing to obtain an actual picture coordinate; (E) generating a reference bar code having a size equivalent to the original bar code according to the location information and the actual picture coordinate, the reference bar code comprising a plurality of square-arranged square points and at least one non-overlapping The alignment symbol of the square points; and (F) fitting the embedded image to the square point position corresponding to the reference barcode according to the actual picture coordinate to generate the image barcode.

Preferably, the original barcode and the reference barcode are rectangular fast response barcodes, and the original barcode and the reference barcode each include three alignment symbols, and the alignment symbols are respectively located at different tops of the original barcode and the reference barcode. angle.

Preferably, the embedded picture is rectangular and includes a first apex angle, a second apex angle, a third apex angle and a fourth apex angle, and the first apex angle and the fourth apex angle are mutually opposite a corner, the second apex angle and the apex angle are mutually opposite angles; in the step (D), the fourth apex angle of the embedded picture is superimposed on the vertices of the original barcodes, and the vertices of the alignment symbols are not The actual picture coordinates are obtained according to the corresponding apex position of the embedded picture in the original bar code; in step (F), the fourth apex angle of the embedded picture is embedded in the reference bar code. The vertex of the alignment symbol.

Further, the present invention provides a computer program product, when an electric After the brain loads the computer program product and executes it, the process steps of generating the image barcode are completed.

Another object of the present invention is to provide a method of reading the aforementioned image barcode to generate a navigation image for photo navigation.

Therefore, the method for generating a navigation image for photo navigation includes the following steps: (A) receiving image data of an image barcode, the image barcode comprising a reference barcode and an embedded image embedded in the reference barcode The reference bar code has a plurality of square points arranged in an array and correspondingly presents a location information and an actual picture coordinate. The embedded picture presents a location appearance and the size conforms to the fault tolerance standard of the reference barcode, and the location information includes a corresponding At the latitude and longitude coordinates of the location, the actual picture coordinates present a position of the embedded picture in the reference bar code; (B) analyzing the image bar code to obtain the location information and the actual picture coordinates; (C) according to the actual The image coordinates and the size of the image barcode are obtained from the image data of the image barcode; and (D) storing the location information in the embedded image to generate the navigation image.

Preferably, the reference bar code is a rectangular fast response bar code and further has three alignment symbols respectively located at different apex angles and not overlapping the square points; the embedded picture is rectangular and has a mutually opposite apex angle a first apex angle and a fourth apex angle; the fourth apex angle of the embedded picture in step (A) is superimposed on the apex angle of the alignment symbol, and the actual picture coordinate pair should be embedded in the picture The first vertex angle is the corresponding square point position within the reference barcode.

Preferably, in step (C), the capturing step is that the actual picture coordinate corresponds to a square point position of the reference barcode and the reference barcode is not set. The apex angle of the alignment symbol is used as the apex angle of the rectangle, and the image data corresponding to the rectangular area of the image barcode is captured to obtain the image data of the embedded image.

Preferably, in step (D), the embedded picture is an image in a joint image expert group format, and the location information is stored in the exchangeable image file of the embedded picture.

Further, the present invention further provides a computer program product, which can complete the foregoing process steps of generating the navigation image after a computer loads the computer program product and executes it.

It is still another object of the present invention to provide a navigation device using the aforementioned image barcode.

The navigation device of the present invention comprises: a processing module and a positioning module electrically connected to the processing module, a storage module and a lens module. The positioning module receives a wireless positioning signal and transmits it to the processing module. The storage module stores a plurality of navigation images for photo navigation. The lens module receives image light of an image barcode and converts it into an image data for transmission to the processing module. The image barcode includes a reference barcode and an embedded image embedded in the reference barcode. The reference bar code has a plurality of square points arranged in an array and correspondingly present a location information and an actual picture coordinate, the embedded picture presenting a location of a location and conforming to a fault tolerance standard of the reference barcode, the location information including a pair of corresponding locations The latitude and longitude coordinates, the actual picture coordinates present a point of the embedded picture in the reference bar code.

The processing module analyzes the image data of the image barcode to obtain the location information, and according to the actual image coordinates and the size of the image barcode The embedded image is captured, and the location information is stored in the embedded image to generate a navigation image of a corresponding location, and is stored in the storage module; the processing module is based on the location information of each navigation image and The wireless positioning signal is used to plan a travel route.

Preferably, the reference bar code is a rectangular fast response bar code and further has three alignment symbols respectively located at different apex angles and not overlapping the square points; the embedded picture is rectangular and has a mutually opposite apex angle a first apex angle and a fourth apex angle, and the fourth apex angle of the embedded picture is superimposed on the apex angle of the alignment symbol, and the actual picture coordinate presents the first apex angle of the embedded picture a corresponding square point position in the reference bar code; the processing module is a square point position corresponding to the reference bar code of the actual picture coordinate and a vertex angle of the reference bar code not setting the alignment symbol as a rectangular top angle And capturing image data corresponding to the rectangular area of the image barcode to obtain the embedded image.

The effect of the invention is that the user can quickly and easily generate a corresponding navigation image by directly capturing an image barcode by using the lens module of the navigation device, and directly store the navigation image in the navigation device, thereby simplifying the step of updating the navigation image.

The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the following description of the preferred embodiments.

Referring to Figures 1 and 7, a preferred embodiment of the method of generating an image barcode 1 of the present invention is illustrated below. The image barcode 1 allows the user to conveniently update the information of the photo navigation.

Step S1: receiving a location information and a tentative picture coordinate to generate an original barcode 2.

An electronic device (such as a computer, not shown in the figure) reads an original picture 3 as shown in FIG. 3, and a tentative picture coordinate, and generates a picture according to the location information and the tentative picture coordinate as shown in FIG. 2D original barcode 2. The location information includes the location name and the latitude and longitude coordinates of the location, and may even include information such as location introduction and location evaluation of the location. The tentative picture coordinates include a set of tentative coordinate values representing the position of the original picture 3 in the original bar code 2. For example, the upper left corner of the original bar code 2 is used as the origin, and the tentative coordinate value (X0, Y0) indicates the position of the upper left corner of the original picture 3.

This embodiment uses the location information and the tentative picture coordinates used in Table 1 as an example.

Accordingly, after the electronic device reads the location name, the latitude and longitude coordinates, and the tentative picture coordinates, the original barcode 2 of FIG. 2 is generated. The original barcode 2 is a rectangular response code (hereinafter referred to as QR code), and includes a first apex angle 211, a second apex angle 212, a third apex angle 213, and a fourth apex angle 214. . The first apex angle 211 and the fourth apex angle 214 are mutually opposite angles, and the second apex angle 212 and the third apex angle 213 are mutually opposite angles. The original barcode 2 includes a plurality of arrays of modules 23 A first alignment symbol 221 aligned with the first vertex 211, a second alignment symbol 222 aligned with the second vertex 212, and a third alignment symbol 223 aligned with the third vertex 213. The first alignment symbol 221, the second alignment symbol 222, and the third alignment symbol 223 are not overlapped with the square points 23. The square points 23 are each represented by a black or white square, the black square point 23 exhibits a binary "1", and the white square point 23 is "0".

According to the location name, the latitude and longitude coordinates and the tentative picture coordinates in Table 1, the original barcode 2 corresponds to a size of 41×41, that is to say, the original barcode 2 has 41 square points 23 on each side, but not The size is limited as long as it meets the QR code's print size guidelines.

Step S2: According to the size of the original barcode 2, an embedded picture 3' conforming to an error correction level is created.

QR code has four fault tolerance standards, as shown in Table 2.

In this embodiment, the original barcode 2 adopts a level H fault tolerance standard, and thus has a fault tolerance of 30%. Specifically, the area occupied by the first parity symbol 221, the second alignment symbol 222, and the third alignment symbol 223 is subtracted, and the original barcode 2 has 1534 square points 23 inside. According to the fault tolerance standard of Level H, as long as the number of blocked or damaged square points 23 is less than 460 (1534×30%=460.2), the information content of the original barcode 2 memory can still be read correctly. take. Therefore, in this step, the electronic device cuts or adjusts the size of the original picture 3 of the forest of forgetting to be 3' area of the embedded picture of no more than 460 square points 23, that is, conforms to the fault tolerance standard.

Here, the size of the original picture 3 is adjusted to correspond to 352 (22 × 16) square points 23 to obtain the adjusted embedded picture 3', but the size of the embedded picture 3' can be adjusted according to different tolerance standards according to requirements. Therefore, it is not limited to the contents disclosed herein. In addition, the adjusted embedded image 3' has a rectangular shape and has a first apex angle 31, a second apex angle 32, a third apex angle 33, and a fourth apex angle 34. The first apex angle 31 and the fourth apex angle 34 are mutually opposite angles, and the second apex angle 32 and the third apex angle 33 are mutually opposite apex angles.

Step S3: superimposing the fourth vertex angle 34 of the embedded picture 3' on the fourth vertex angle 214 of the original barcode 2, and calculating the actual picture coordinates of the first vertex angle 31 of the embedded picture 3' at the original barcode 2. P.

Referring to FIG. 4 and FIG. 5 , specifically, the first apex angle 211 of the original barcode 2 is used as the coordinate origin, and the direction of the first apex angle 211 to the second apex angle 212 is set to be the first direction. The direction of the first apex angle 211 to the third apex angle 213 is the second direction, and the single square point 23 is used as the coordinate grid point to calculate the coordinate position, and (the first direction coordinate grid point, the second direction coordinate grid point) The form indicates the coordinate position of each square point 23 in the original bar code 2. For example, the coordinates of the first vertex 211 in FIG. 5 correspond to (1, 1), the coordinates of the second vertex 212 are (41, 1), and the coordinates of the third vertex 213 are (1, 41). The coordinates of the fourth vertex 214 are (41, 41).

Accordingly, the position of the square point 23 corresponding to the fourth vertex angle 34 of the embedded picture 3' in Fig. 4 is (41, 41). In addition, it can be seen from the foregoing description that the embedded picture 3' The size is 22×16, so that the position of the square point 23 corresponding to the first vertex angle 31 of the embedded picture 3' is (20, 26), which is the actual picture coordinate P obtained by the electronic device in the above manner in this step. .

Step S4: generating a reference barcode 4 according to the location information and the actual picture coordinate P.

Referring to FIG. 6, in this step, the electronic device generates a reference barcode 4 according to the data in Table 3. The size of the reference bar code 4 is equivalent to the original bar code 2 (41×41), and also has a first apex angle 411, a second apex angle 412, a third apex angle 413, a fourth apex angle 414, and a plurality of The square point 43 of the array arrangement and a first alignment symbol 421, a second alignment symbol 422 and a third alignment symbol 423 which are not overlapped with the square point 43 adopt the same Level H fault tolerance standard.

The difference between the reference bar code 4 and the original bar code 2 is that the actual picture coordinate P in the reference bar code 4 represents the position of the square point 43 of the first vertex angle 31 of the adjusted picture 3', and the tentative picture coordinates of the original bar code 2 memory are Any value.

Step S5: fitting the embedded picture 3' to the reference bar code 4, wherein the fourth vertex angle 34 of the embedded picture 3' is overlapped with the fourth vertex angle 414 of the reference bar code 4 to generate the image bar code 1.

Referring to FIG. 7, the electronic device embeds the embedded picture 3' in the reference barcode. 4 and the fourth vertex angle 34 of the embedded picture 3' is superimposed on the fourth vertex angle 414 of the reference bar code 4 to produce an image bar code 1 which facilitates updating the navigation material.

As described above, the size of the embedded picture 3' conforms to the error tolerance standard of the reference bar code 4, so even if the embedded picture 3' covers a part of the square point 43 of the reference bar code 4, the correct reading of the memory data of the image bar code 1 is not affected. In addition, the image barcode 1 can further provide the embedded image 3' required for photo navigation in addition to the information stored in the reference barcode 4.

Referring to Figures 8 and 9, the execution steps of a navigation device 5 for generating a navigation image for photo navigation on a navigation device 5 are explained below.

Step F1: Receive image data of an image barcode 1.

The navigation device 5 includes a processing module 51 , a positioning module 52 electrically connected to the processing module 51 , a storage module 53 , and a lens module 54 . The positioning module 52 receives a wireless positioning signal and transmits it to the processing module 51. The storage module 53 stores a plurality of navigation images for photo navigation.

In this step, the lens module 54 receives the image light of the image barcode 1 as shown in FIG. 7 and converts it into an image data and transmits it to the processing module 51. The image barcode 1 is generated by the foregoing method and can be displayed by an electronic display such as a liquid crystal screen or printed on a physical medium such as a magazine or a leaflet.

Step F2: analyzing and obtaining the location information corresponding to the reference barcode 4 of the image barcode 1 and the actual image coordinate P.

After receiving the image data of the image barcode 1 , the processing module 51 analyzes the image barcode 1 to obtain the data of the location name, the latitude and longitude coordinates, and the actual image coordinate P of the third table.

Step F3: capturing the embedded image 3' according to the actual picture coordinate P and the size information of the image barcode 1.

As explained above, the actual picture coordinate P presents the first vertex angle 31 of the embedded picture 3' at the corresponding square point 43 in the reference barcode 4, and the fourth top angle 34 of the embedded picture 3' overlaps the fourth of the reference barcode 4. The apex angle 414. That is, the position of the square point 43 corresponding to the first vertex angle 31 of the embedded picture 3' is (20, 26), and the position of the square point 43 corresponding to the fourth head angle 34 is (41, 41). Accordingly, the processing module 51 takes the position of the square point 43 corresponding to the first apex angle 31 and the fourth apex angle 34 as a rectangular apex angle, and captures the image data corresponding to the rectangular area of the image barcode 1 to obtain Embed image data of picture 3'.

Step F4: storing the location information in the embedded picture 3' to generate a navigation image.

In this embodiment, the embedded picture 3' and the navigation image are stored in a Joint Photographic Experts Group (JPEG) format. In this step, the processing module 51 stores location information such as a place name (forgotten forest) and a latitude and longitude coordinate (23 deg 38' 54.00" N, 120 deg 47' 41.00" E) in the embedded picture 3 captured in step F3. 'In the exchangeable image file (Exif), and generate a navigation image with information about the forest-related navigation. Subsequently, the processing module 51 transmits the newly generated navigation image to the storage module 53 for storage, and completes the data update of the navigation image.

When the navigation device 1 is used, the processing module 51 plans a travel route according to the wireless positioning signal received by the positioning module 52 and the location information of the navigation image memory for reference by the user.

Specifically, the foregoing original barcode 2 and reference barcode 4 are used. The QR code with a specific fault tolerance standard, but the original barcode 2 and the reference barcode 4 can also use other two-dimensional barcodes with fault tolerance characteristics, such as Maxi code, Data Matrix code, Magi code, Quick Mark code, etc. The effect.

In addition, in this embodiment, the fourth vertex angle 34 of the embedded picture 3' is overlapped with the fourth vertex angle 414 of the reference barcode 4, and the actual picture coordinate P records only the square point corresponding to the first vertex angle 31 of the embedded picture 3'. 43 position. However, as shown in FIG. 10, the embedded picture 3' may be embedded in any position in the reference barcode 4 as long as the first alignment symbol 421, the second alignment symbol 422, and the third alignment symbol 423 are not masked. . According to the setting manner, the square point position corresponding to the first vertex angle 31 and the fourth vertex angle 34 of the embedded picture 3' is recorded in the reference bar code 4, and the processing module 51 can use the two-point point position to extract and embed in step F3. Picture 3' to generate a navigation image. In another embodiment, the position of the square point 43 corresponding to the first vertex angle 31, the second vertex angle 32, the third vertex angle 33, and the fourth vertex angle 34 of the embedded picture 3' may also be recorded in the reference barcode 4, The step F3 processing module 51 can also take out the embedded picture 3' from the image barcode 1 and further generate the navigation image.

In summary, the user can easily and quickly update the navigation image data stored by the navigation device 5 by taking the image barcode 1 of the present invention, thereby improving the convenience in use.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

P‧‧‧ actual picture coordinates

S1~S5‧‧‧ Process steps

F1~F4‧‧‧ process steps

1‧‧‧ image barcode

2‧‧‧ original barcode

211‧‧‧ first corner

212‧‧‧second top corner

213‧‧‧3rd corner

214‧‧‧fourth corner

221‧‧‧ first registration symbol

222‧‧‧ second alignment symbol

223‧‧‧ third alignment symbol

23‧‧‧ square points

3‧‧‧ original picture

31‧‧‧ first corner

32‧‧‧second top corner

33‧‧‧3rd corner

3'‧‧‧embedded picture

4‧‧‧Reference barcode

411‧‧‧ first corner

412‧‧‧second top corner

413‧‧‧3rd corner

414‧‧‧fourth corner

421‧‧‧ first alignment symbol

422‧‧‧ second alignment symbol

423‧‧‧ third alignment symbol

43‧‧‧ square points

5‧‧‧Navigation device

51‧‧‧Processing module

52‧‧‧ Positioning Module

53‧‧‧ storage module

54‧‧‧Lens module

1 is a flow chart showing a preferred embodiment of the method for generating an image barcode according to the present invention; and FIG. 2 is a schematic diagram showing an original barcode generated based on a location information and a tentative picture coordinate; FIG. 3 is A schematic diagram of an original picture corresponding to a place; FIG. 4 is a schematic diagram illustrating an embodiment of setting an embedded picture size and an actual picture coordinate according to the size of the original bar code; FIG. 5 is a schematic diagram illustrating the original bar code according to the original bar code FIG. 6 is a schematic diagram illustrating a reference bar code generated according to the location information and the actual picture coordinates; FIG. 7 is a schematic diagram illustrating the embedding of the embedded picture in the reference An image bar code generated by a bar code; FIG. 8 is a flow chart illustrating a preferred embodiment of the method for reading the image bar code of the present invention to generate a navigation image; FIG. 9 is a system architecture diagram illustrating operation A preferred embodiment of the image bar code navigation device; FIG. 10 is another embodiment of the image bar code.

F1~F4‧‧‧ process steps

Claims (11)

A method for generating an image barcode includes the following steps: (A) reading a location information about a place, an original picture, and a tentative picture coordinate; (B) generating information according to the location and the tentative picture coordinates An original barcode comprising a plurality of square points arranged in an array and at least one alignment symbol not overlapping the square points, the location information comprising a latitude and longitude coordinate representing the location, the tentative picture coordinates including at least one group a tentative picture coordinate value of the original picture in the original barcode; (C) adjusting the original picture to become an embedded picture according to the size of the original barcode, and making the size of the embedded picture conform to the fault tolerance standard of the original barcode; Superimposing the embedded picture in the original barcode without setting the position of the alignment symbol, and obtaining an actual picture coordinate than the corresponding square point position in the original barcode; (E) according to the location information And the actual picture coordinate generates a reference barcode having a size equivalent to the original barcode, the reference barcode comprising a plurality of square points arranged in an array and at least one not overlapping Para-point square symbols; and (F) according to the actual image coordinates of the insert fitting bar code image corresponding to the reference position side, generating the bar code image. The method for generating an image barcode according to claim 1, wherein the original barcode and the reference barcode are rectangular fast response barcodes, and the original barcode and the reference barcode each include three alignment symbols, and the reference barcodes respectively comprise three alignment symbols. The alignment symbols are respectively located at different vertices of the original barcode and the reference barcode. The method for generating an image barcode according to claim 2, wherein the embedded image is rectangular and includes a first apex angle, a second apex angle, a third apex angle, and a fourth apex angle The first apex angle and the fourth apex angle are mutually opposite angles, and the second apex angle and the apex angle are opposite apex angles; and the fourth apex angle of the embedded picture is superposed on the step (D) The original bar code is not set with an apex angle of the alignment symbol, and the actual picture coordinate is obtained according to a corresponding apex position of the embedded vertices in the original bar code; the embedding in step (F) The fourth top corner of the picture is embedded in the top corner of the reference bar code. A computer program product, when a computer is loaded into the computer program product and executed, the method described in any one of claims 1 to 3 can be completed. A method for generating a navigation image for photo navigation includes the following steps: (A) receiving image data of an image barcode, the image barcode comprising a reference barcode and an embedded image embedded in the reference barcode, The reference bar code has a plurality of square points arranged in an array and correspondingly presents a location information and an actual picture coordinate, the embedded picture presenting a location of the location and the size conforms to the fault tolerance standard of the reference barcode, the location information including a corresponding to the a latitude and longitude coordinate of the location, the actual picture coordinate presents a point position of the embedded picture in the reference barcode; (B) analyzing the image barcode to obtain the location information and the actual picture coordinate; (C) according to the actual picture coordinate And the size of the image barcode, from The image data of the image barcode captures the embedded image; and (D) stores the location information in the embedded image to generate the navigation image. A method for generating a navigation image for photo navigation according to claim 5, wherein the reference barcode is a rectangular fast response barcode and further has three different vertices respectively and not overlapping the same a matching symbol of the point; the embedded picture is rectangular and has a first apex angle and a fourth apex angle opposite to each other; and the fourth apex of the embedded picture is superimposed on the reference bar code in step (A) The vertex angle of the alignment symbols is not set, and the actual picture coordinate pair should be embedded in the first vertex angle of the picture in the corresponding square point position in the reference barcode. A method for generating a navigation image for photo navigation according to claim 6 of the patent application, wherein the capturing step in the step (C) is that the actual image coordinate corresponds to a square point position of the reference barcode and the The vertices of the alignment symbols are not set as the apex angle of the rectangle, and the image data corresponding to the rectangular area of the image barcode is captured to obtain the image data of the embedded image. A method for generating a navigation image for photo navigation according to claim 5, wherein in step (D) the embedded image is an image in a joint image expert panel format, and the location information is stored in The embedded image is in an exchangeable image file. A computer program product, when a computer is loaded into the computer program product and executed, the method of any one of claims 5 to 8 can be completed. A navigation device includes: a processing module; a positioning module electrically connected to the processing module and receiving a wireless positioning signal; a storage module electrically connected to the processing module and storing a plurality of photos for photo navigation And a lens module electrically connected to the processing module, receiving image light of an image barcode and converting the image light into an image data, and transmitting the image light to the processing module, the image barcode comprising a reference barcode and An embedded picture embedded in the reference bar code, the reference bar code having a plurality of square points arranged in an array and correspondingly presenting a location information and an actual picture coordinate, the embedded picture presenting a location and a size conforming to the reference bar code The fault-tolerant standard, the location information includes a pair of latitude and longitude coordinates of the corresponding location, the actual image coordinates presenting a position of the embedded image in the reference barcode, wherein the processing module analyzes the image data of the image barcode to obtain the Location information, and the embedded image is captured according to the actual image coordinates and the size of the image barcode, and the location information is stored in the embedded image. Students should one pair of navigation image locations, and stored in the storage module; the processing module based on each memory location of the image navigation and radio positioning signal information to plan a travel route. The navigation device of claim 10, wherein the reference bar code is a rectangular fast response bar code and further has three alignment symbols respectively located at different vertices and not overlapping the square points; the embedded picture a first apex angle and a fourth apex angle which are rectangular and have mutually opposite apex angles, and the embedded image The fourth top corner is superimposed on the reference bar code, and the vertices of the alignment symbols are not set. The actual picture coordinates represent the first vertex angle of the embedded picture in the corresponding square point position in the reference barcode; the processing module Taking the position of the square point corresponding to the reference bar code of the actual picture coordinate and the apex angle of the reference bar code as the rectangular apex angle of the rectangle, and capturing the image data of the rectangular area corresponding to the image bar code. To get the embedded image.