TWI453373B - A method and preview system for previewing video files - Google Patents

Description

Method and preview system for generating panoramic reality path preview video file

The present invention relates to a real-world path preview, and more particularly to a method and a preview system for generating a panoramic reality path preview movie file.

Most of the conventional car GPS navigation systems are 2D floor plan, which can not present the real scene of the road. When users use the electronic map to query the geographical location, they can only use the path planning and listening to the navigation machine to reach the destination. In addition, the electronic map can only provide information about the path of the plan and the connection between the landmarks, and can not provide any image on the driving path for the user's reference.

Since the conventional vehicle-mounted GPS navigation system cannot generate a real-life path preview image or video of a planned path, the user cannot know the road condition on the planned route before driving. Therefore, in the navigation process, the electronic map is often used. If there is a gap in the real scene of the road and the situation of missing the intersection, or turning at the wrong intersection or entering the unexpected road, the user not only does not drive on the shortest path, but increases the cost of driving.

The object of the present invention is to provide a method for generating a panoramic reality path preview movie file, which can generate a corresponding street preview panoramic image according to a planned path.

Another object of the present invention is to provide a panoramic reality path movie preview system, which can generate a panoramic path preview movie file of a planned path and play it, so that the user can preview the street panoramic image of the planned path before driving. Have an understanding of the road conditions and change the driving path depending on the road conditions.

To achieve the above objective, the method for generating a panoramic reality path preview movie file provided by the present invention includes the following steps: (a) taking a panoramic image in a first direction along a street in an area and capturing an image every interval time. At each interval, a plurality of panoramic images are captured, and the panoramic images and the image coordinates are stored in a database, and the image coordinates are calculated according to the interval between the two images. Image coordinates of a plurality of panoramic images, each panoramic image and corresponding image coordinates are integrated into an integrated panoramic image and stored in the database; (b) generated in an electronic map according to a starting point and an ending point of the user input a planning path, the planning path includes a plurality of path coordinates, the path coordinates form a path coordinate sequence, and the path coordinate sequence is sequentially exported, the planning path has a plurality of nodes and each node corresponds to a path coordinate, The nodes include the starting point and the ending point of the two ends of the planning path, and the nodes between the starting point and the ending point are intersection nodes; (c) from the database Searching for the integrated panoramic image of the path coordinate closest to the starting point as the starting image; (d) determining whether the path direction between adjacent nodes in the planned path is the same as the first direction in the order of the starting point to the ending direction, and if so, Searching, according to the sequence of path coordinate sequences between the adjacent nodes, the corresponding integrated panoramic images are sorted into a segment panoramic image sequence, and if not, according to the path coordinate sequence between the adjacent nodes Searching for the corresponding integrated panoramic image in the database, and dividing each integrated panoramic image into a left image and a right image and combining the left and right images into a reconstructed panoramic image and sorting them into a segment panoramic image sequence; e) determining whether there is a next intersection node on the planned path, and if so, returning to step (d), if not, performing step (f); and (f) panorama of the sections between adjacent nodes on the planned path The image sequence is synthesized into a panoramic reality path preview movie file.

To achieve the above objective, the panoramic reality path movie preview system provided by the present invention comprises a database, a movie production module and a player. The video production module is configured to perform the following steps: (a) integrating a plurality of panoramic images taken along a street in an area and image coordinates captured at intervals of time into a plurality of integrated panoramic images and stored in the database The panoramic image is captured in a first direction, and a plurality of panoramic images are captured during each interval, and the panoramic images and the image coordinates are stored in the database, and are captured according to intervals of time. The two image coordinates calculate the image coordinates of the plurality of panoramic images captured during each interval, and integrate each panoramic image and the corresponding image coordinates into the integrated panoramic image; (b) according to the user input in an electronic map The point and the end point generate a planning path, the planning path includes a plurality of path coordinates, the path coordinates form a path coordinate sequence, and the path coordinate sequence is sequentially exported, the planning path has a plurality of nodes and each node Corresponding to a path coordinate, the nodes include the starting point and the ending point of the two ends of the planning path, and the node between the starting point and the ending point is an intersection node (c) by using the database to search for the integrated panoramic image of the path coordinate closest to the starting point as the starting image; (d) determining whether the path direction between adjacent nodes in the planned path is in the order of the starting point to the ending direction The first direction is the same. If yes, the corresponding integrated panoramic image is searched by the database according to the path coordinate sequence between the adjacent nodes and sorted into a segment panoramic image sequence. If not, according to the adjacent node. The sequence of the path coordinate sequence is searched for the corresponding integrated panoramic image by the database, and each integrated panoramic image is divided into a left image and a right image, and the left and right replacements are combined into a recombined panoramic image, and are sorted as a segment of the panoramic image sequence; (e) determining whether there is a next intersection node on the planned path, and if so, returning to step (d), if not, performing step (f); and (f) The segment panoramic image sequence between adjacent nodes is synthesized into a panoramic reality path preview video file and stored in the database. The player is used to play the panoramic reality path preview movie file.

In order to better understand the features of the present invention, the following is a description of the preferred embodiments and the accompanying drawings, wherein: FIG. 1 is a flow chart showing a method for generating a panoramic reality path preview movie file according to a preferred embodiment of the present invention; The second figure is a schematic diagram of a panoramic reality path movie preview system according to a preferred embodiment of the present invention.

With reference to the first and second figures, a method for generating a panoramic reality path preview movie file according to a preferred embodiment of the present invention includes the following steps. First, in step S11, a panoramic image is captured in a first direction along a street in an area, and an image coordinate (latitude and longitude) is captured every interval time, and a plurality of panoramic images are captured in each interval, and the panoramic images are captured. And storing the image coordinates and storing them in a database 10, and calculating image coordinates of the plurality of panoramic images captured during each interval according to the two image coordinates captured at intervals, and each panoramic image and the corresponding image The coordinates are integrated into an integrated panoramic image and stored to the database 10.

In this embodiment, the panoramic camera Ladybug2 is used to take 15 panoramic images per second, and the GPS satellite system Garmin60CSx navigation system receives the GPS signal once per second and obtains an image coordinate. The 15 panoramic images in the interval of each second are interpolated, and the corresponding image coordinates are calculated according to the two image coordinates captured at intervals of each second.

Then, in step S12, a planning path is generated in an electronic map according to a starting point and an ending point of the user input, the planning path includes a plurality of path coordinates, the path coordinates form a path coordinate sequence, and the path coordinate sequence is Sequentially, the planning path has a plurality of nodes and each node corresponds to a path coordinate, the nodes include a starting point and an ending point of the two ends of the planning path, and the node between the starting point and the ending point is an intersection node. The planned path may include only the starting point and the ending point two nodes, or the planned path may include the starting point and the ending point two nodes and at least one intersection node therebetween. In this embodiment, the planning path is generated by using Google Map. It can be understood that the planning path can also be generated by using UrMap or other electronic maps. It should be emphasized that, in the method of the present invention, the starting point may not necessarily be a corner of a street or an intersection, and the panoramic images do not need to be stored in units of the entire image between the nodes of the two intersections, thereby avoiding unnecessary sections. The panoramic image is used for film synthesis, saving film synthesis time and storage space.

Next, in step S13, the integrated panoramic image of the path coordinate closest to the starting point is searched by the database 10 as a starting image.

Next, proceeding to step S14, determining whether the path direction between adjacent nodes in the planned path is the same as the first direction in the order of the starting point to the ending direction, and if so, in accordance with the path coordinate sequence between the adjacent nodes, the database 10 is sequentially executed. Searching for the corresponding integrated panoramic image and sorting it into a segment panoramic image sequence. If not, searching for the corresponding integrated panoramic image from the database 10 in the order of the path coordinate sequence between the adjacent nodes, and An integrated panoramic image is divided into a left image and a right image and combined to form a recombined panoramic image, and sorted into a segment panoramic image sequence.

In order to avoid capturing the panoramic image twice in the same road, the storage burden of the database 10 is increased, and the user is prevented from having a reversed playback when the street view image is previewed (since each segment in the method of the present invention is only The first direction captures the panoramic image. Therefore, if the path direction between adjacent nodes in the planned path is different from the first direction in step S14, each integrated panoramic image is segmented, reorganized, and sorted into a segment. The panoramic image sequence, that is, the user can preview the street view for the direction of travel in the rear direction (opposite the first direction), thereby improving the visual fluency of the user during preview.

Next, in step S15, it is determined whether there is a next intersection node on the planned route, and if so, the process returns to step S14, and if not, the process proceeds to step S16.

In step S16, the segment panoramic image sequence between adjacent nodes on the planned path is synthesized into a panoramic reality path preview movie file. The panoramic reality path preview video file may be in a format such as avi, wmv, or mp4.

In another preferred embodiment of the present invention, each integrated panoramic image may further have an image serial number and a direction determining code, wherein the image serial number is sequentially added according to the first direction, and the direction determining code is used to indicate the The first direction.

For example, if a road segment moves from point A to point B, the image number of the captured panoramic image is sequentially 00001, 00002, 00003..., and the image serial number and direction judgment code of the integrated panoramic image are sequentially The records are 00001AB, 00002AB, 00003AB..., where AB is the direction from point A to point B. Thus, in the above step S14, if the path direction between one of the adjacent nodes in the planned path is the same as the direction indicated by AB, the records in the database 10 are sequentially searched for the records 00001AB, 00002AB, 00003AB... Integrating the panoramic images and sorting them into a segment panoramic image sequence; if the path direction between one of the adjacent nodes in the planned path is different from the direction indicated by AB (ie, the path direction is from the B point to the A point), then The integrated panoramic images recorded as ...00003AB, 00002AB, and 00001AB are sequentially searched by the database 10, and each integrated panoramic image is segmented, recombined, and sorted into a segment panoramic image sequence. When the integrated panoramic images are integrated into a segment panoramic image sequence, and the segment panoramic image sequences are combined into a panoramic reality path movie preview file, the player can play and display it on a display device by using a player. While playing a movie, you can view or edit any of the panoramic images, such as changing the viewing angle of the view, reducing or enlarging the image, or outputting any of the panoramic images (after changing the viewing angle).

The present invention further provides a panoramic reality path movie preview system 100. The panoramic reality path movie preview system 100 includes a database 10, a movie production module 20, and a player 30. The database 10 is configured to store a plurality of panoramic images captured along a street in an area, and image coordinates captured by each interval, a plurality of integrated panoramic images, and a panoramic reality path preview video file synthesized by the integrated panoramic image. .

The video generating module 20 is configured to generate a panoramic real-world path preview video file corresponding to a planned path, where the planning path is generated in an electronic map according to a starting point and an ending point of the user input.

The method for generating the panoramic reality path preview movie file by the video production module 20 is as follows. The video generating module 20 first integrates a plurality of panoramic images captured in a first direction along a street in an area, and image coordinates captured at intervals of time are stored in a plurality of integrated panoramic images and stored in the database 10. And calculating the image coordinates of the plurality of panoramic images captured during each interval, and then integrating each panoramic image with the corresponding image coordinates into an integrated panoramic image. For the manner of forming the integrated panoramic images and calculating the image coordinates, please refer to the above detailed description of step S11, which will not be described here.

Next, the film production module 20 performs steps S12 to S16 as described above to generate a panoramic reality path preview movie file corresponding to the planned path. Steps S12 to S16 have been described in detail in the method of generating a panoramic virtual path preview movie file, which will not be described here.

The player 30 is configured to play the panoramic reality path preview movie file. In this embodiment, the player 30 automatically plays the panoramic reality path preview movie file. When the player 30 plays the panoramic reality path preview movie file, one of the path coordinate positions on the planned path (one coordinate position on the electronic map) is synchronously changed with the panoramic image corresponding to the path coordinate position, and the playback is performed. When the player 30 plays the panoramic reality path and previews the video file, it can perform the ring view, adjust the direction of the view, or/and zoom the size of the panoramic image.

Preferably, the player 30 is interactive, wherein: the user can select to play in the panoramic image mode or the ring image mode, and the ring image mode is an image around the image deformation, and the image center correction is restored to the real shape without deformation. The image can be set by the user (for example, 0.5, 2 or 4 times speed); the panoramic reality path can be previewed by any time point; the ring image can be viewed at any time. Adjust the direction of the view image, zoom in on the image for detailed view, and achieve a true panoramic preview; and output a single panoramic image (a single panoramic image can be adjusted after the viewing angle is output) or complete the panoramic reality path to preview the video file.

The method for generating a panoramic virtual path preview movie file can generate a corresponding panoramic real path preview movie file according to a planned path, wherein the starting point of the planned path does not have to be a corner of the street or a junction node. Moreover, the panoramic reality path movie preview system of the present invention can play the panoramic reality path preview movie file, so that the user can preview the street panoramic image of the planned path in advance to understand the road condition and change the visual condition. Its driving path.

The above embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. A person skilled in the art can make various modifications or equivalents to the invention within the spirit and scope of the invention, and such modifications or equivalents are also considered to fall within the scope of the invention.

10. . . database

20. . . Video production module

30. . . player

100. . . Panorama Reality Path Movie Preview System

S11~S16. . . Steps of the method of the invention

The first figure is a flowchart of a method for generating a panoramic reality path preview movie file according to a preferred embodiment of the present invention; and

The second figure is a schematic diagram of a panoramic reality path movie preview system according to a preferred embodiment of the present invention.

S11~S16. . . Steps of the method of the invention

Claims (10)

A method for generating a panoramic reality path preview movie file, comprising the steps of: (a) taking a panoramic image in a first direction along a street in an area and capturing an image coordinate every time interval, each interval time Taking a plurality of panoramic images, the panoramic images and the image coordinates are stored in a database, and the image coordinates of the plurality of panoramic images captured during each interval are calculated according to the two image coordinates captured at intervals Integrating each panoramic image with the corresponding image coordinates into an integrated panoramic image and storing it in the database; (b) generating a planning path according to a starting point and an ending point of the user input in an electronic map, the planning path The method includes a plurality of path coordinates, and the path coordinates form a path coordinate sequence, and the path coordinate sequence is sequentially exported. The planned path has a plurality of nodes and each node corresponds to a path coordinate, and the nodes include the planned path. The starting point and the ending point of the two ends, the node between the starting point and the ending point is the intersection node; (c) the closest searched by the database The integrated panoramic image of the path coordinate of the starting point is used as the starting image; (d) determining whether the path direction between adjacent nodes in the planned path is the same as the first direction in the order of the starting point to the ending direction, and if so, according to the adjacent node The sequence of the path coordinate sequence is searched by the database for the corresponding integrated panoramic image and sorted into a segment panoramic image sequence. If not, the database is searched according to the path coordinate sequence between the adjacent nodes. Correspondingly integrating the panoramic image, and dividing each integrated panoramic image into a left image and a right image and combining the left and right images into a reconstructed panoramic image and sorting them into a segment panoramic image sequence; (e) judging the plan Whether there is a next intersection node on the path, and if so, returning to step (d), if not, performing step (f); and (f) synthesizing the segment panoramic image sequence between adjacent nodes on the planned path into one The panorama real path previews the video file. In the method for generating a panoramic reality path preview video file according to claim 1, in step (a), the image coordinates of the panoramic image captured in each interval interval are calculated by interpolation. The method for generating a panoramic reality path preview movie file according to claim 1, wherein the electronic map is a Google map. The method for generating a panoramic reality path preview video file according to claim 1, wherein each integrated panoramic image further has an image serial number and a direction determining code, wherein the image serial number is sequentially increased according to the first direction, the direction The judgment code is used to indicate the first direction. A panoramic reality path movie preview system includes: a database; a video production module for performing the following steps: (a) integrating a plurality of panoramic images taken along a street in an area and each time interval 撷The image coordinates are a plurality of integrated panoramic images and are stored in the database, wherein the panoramic images are captured in a first direction, and a plurality of panoramic images, the panoramic images and the images are captured at intervals The coordinates are stored in the database, and the image coordinates of the plurality of panoramic images captured during each interval are calculated according to the two image coordinates captured at intervals, and each panoramic image and the corresponding image coordinates are integrated into the integrated panorama. (b) generating a planning path in an electronic map according to a starting point and an ending point of the user input, the planning path includes a plurality of path coordinates, the path coordinates forming a path coordinate sequence, and the path coordinate sequence Sequentially remitted, the planning path has a plurality of nodes and each node corresponds to a path coordinate, and the nodes include the plan The starting point and the ending point of the two ends of the path, the node between the starting point and the ending point is the intersection node; (c) the integrated panoramic image of the path coordinate closest to the starting point is searched by the database as the starting image; (d) along the starting point The order to the end direction determines whether the path direction between adjacent nodes in the planned path is the same as the first direction, and if so, the corresponding integrated panoramic image is searched from the database according to the path coordinate sequence between the adjacent nodes. And sorting into a segment panoramic image sequence, if not, searching for the corresponding integrated panoramic image from the database according to the path coordinate sequence between the adjacent nodes, and dividing each integrated panoramic image into a left image And the right image and the left and right replacements are combined into a recombined panoramic image and sorted into a segment panoramic image sequence; (e) determining whether there is a next intersection node on the planned path, and if so, returning to step (d), If not, proceed to step (f); (f) synthesize the segment panoramic image sequence between adjacent nodes on the planned path into a panoramic reality path preview video file and store To the database; and a player to play the reality panorama path preview video files. The panoramic reality path movie preview system according to claim 5, wherein the film generation module calculates an image coordinate of the panoramic image captured in each interval interval by using an interpolation method. The panoramic reality path movie preview system of claim 5, wherein each integrated panoramic image further has an image serial number and a direction determining code, wherein the image serial number is sequentially increased according to the first direction, and the direction determining code is used by To indicate the first direction. The panoramic reality path movie preview system according to claim 5, wherein when the player plays the panoramic reality path preview movie file, one of the path coordinate positions on the planned path is synchronized with the panoramic image corresponding to the path coordinate position. change. The panoramic reality path movie preview system of claim 5, wherein the player automatically plays the panoramic reality path preview movie file. The panoramic reality path movie preview system according to claim 5, wherein the player plays the panoramic real-world path and previews the video file to be parked in a panoramic image, and can perform a ring view, adjust the direction of the view, or/and zoom. The size of the panoramic image.