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Updating method utilizing full view camera to update streetscape database

A panoramic camera and database technology, applied in database update, geographic information database, electronic digital data processing, etc., can solve the problems of high update cost, long data update cycle, lack of real-time data, etc., and the method is simple, maintenance and update low cost effect

Active Publication Date: 2014-04-30
深圳华科育成科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Street view has become a common technology for electronic maps, but the street view database requires large-scale and comprehensive data collection by service providers, the data update cycle is long, the data lacks real-time performance, and the update cost is high

Method used

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  • Updating method utilizing full view camera to update streetscape database
  • Updating method utilizing full view camera to update streetscape database
  • Updating method utilizing full view camera to update streetscape database

Examples

Experimental program
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Embodiment 1

[0018] see figure 1 , showing the method for updating the street view database with a panoramic camera in the present invention, mainly includes the following steps:

[0019] In step S110, a panoramic camera is selected as a street view data source, the geographic location and shooting angle of the selected panoramic camera are measured, and positioning is performed on the electronic map.

[0020] Among them, the panoramic camera includes the existing panoramic monitoring cameras of public security, shops, scenic spots, residential quarters, etc., as well as the panoramic monitoring cameras installed by street view service providers. Among them, using the existing panoramic camera can not only occupy a better geographical location, but also save maintenance costs appropriately.

[0021] In this embodiment, the geographic location, ie (longitude, latitude), is used to correspond to the longitude and latitude in the electronic map.

[0022] The measurement of the shooting angl...

Embodiment 2

[0046] see Figure 4 , showing the method for updating the street view database with a panoramic camera in the present invention, mainly includes the following steps:

[0047] In step S410, select the geographic location of street view data framing on the electronic map, and install a panoramic camera there as a source of street view data, and record the geographic location and shooting angle;

[0048] In this embodiment, the geographic location, ie (longitude, latitude), is used to correspond to the longitude and latitude in the electronic map. The shooting angle is used for subsequent visual image correction.

[0049] In step S420, the street view video of any period captured by the panoramic camera is selected, and the key frames are intercepted.

[0050] In step S430, the intercepted top-view fisheye images of the key frames are expanded, and spliced ​​into a full front view view suitable for human eyes.

[0051] In this embodiment, the process of unfolding and splicing i...

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Abstract

The invention discloses an updating method utilizing full view camera to update streetscape database. The updating method includes (1), selecting a full view camera as streetscape data source to measure geographic position and shooting angle of the selected full view camera and locate on an electronic map; (2), selecting streetscape video at any time section taken by the full view camera and capturing some keyframes; (3), unfolding the overlook fisheye images of the captured keyframes to connect into an envisage full view image suitable for human eyes; (4), projecting the full view image on the full view coordinate system of the corresponding position of the electronic map according to the captured geographic position and shooting angles to form a full view map. The full view camera is taken as data source, so that the updating method has instantaneity and accuracy and is low in updating cost and maintaining cost.

Description

【Technical field】 [0001] The invention belongs to the technical field of electronic maps, and in particular relates to a method for updating a street view database with a panoramic camera. 【Background technique】 [0002] Street view has become a common technology for electronic maps, but the street view database requires large-scale and comprehensive data collection by service providers. The data update cycle is long, the data lacks real-time performance, and the update cost is high. Especially when collecting street views with large-scale viewing vehicles or satellites, due to factors such as shooting angles or weather, it may not be able to provide the best or the closest angle to the user's actual observation. [0003] On the other hand, since panoramic cameras have spread all over the city, they can periodically collect 360-degree street views at intersections, which have the advantages of updating data blocks and accurate geographical locations, and have the technical b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/23G06F16/29
Inventor 修文群
Owner 深圳华科育成科技开发有限公司
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