Electronic equipment and positioning method
A positioning method and technology of electronic equipment, applied in navigation, instrument, surveying and navigation, etc., can solve the problems of low positioning accuracy, accumulated error, limited application environment, etc., and achieve the effect of good versatility and high precision
Active Publication Date: 2015-03-18
LENOVO (BEIJING) LTD
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Problems solved by technology
[0003] Among them, the GPS-based positioning method has low positioning accuracy and is difficult to adapt to high-precision application scenarios, and this method needs to receive satellite signals to achieve positioning, the application environment is limited, and the real-time performance is poor; the positioning method based on inertial navigation system requires Continuously accumulate its own sensor information to achieve positioning, and as time grows, there will be cumulative errors, which will affect the positioning accuracy; the positioning method based on visual information relies on the visual sensor carried by the electronic device, and automatically perceives its own position by processing image data in real time , the more commonly used method is to use sign recognition to achieve positioning, because it needs to determine the signs in advance and learn, so its versatility is poor
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[0056] In addition, as a preferred embodiment of the present invention, the method of the embodiment of the present invention also includes:
[0057] By extracting different at least two target points multiple times, and correspondingly generating a plurality of positioning information;
[0058] According to the corresponding position distributions of the plurality of positioning information, the optimal positioning information is selected as the finally determined positioning information.
[0059] That is to say, the electronic device can repeatedly perform the above steps 101, 102 and 103, and each repeated execution will obtain a corresponding positioning information; the electronic device can select from the most densely distributed position according to the position distribution of these positioning information. Select the optimal positioning information in the region as the final positioning information. In this way, the accuracy of positioning information can be improv...
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The invention discloses electronic equipment and a positioning method. The method comprises the following steps: extracting at least two target points from an inputted image; extracting the characteristics of the target points and searching a characteristic point data set so as to obtain spatial position information corresponding to the target points; and generating positioning information in accordance with the acquired spatial position information of the at least two target points and depth information of the corresponding target points. Through the positioning method disclosed by the invention, the positioning of the electronic equipment positioning which is relatively high in precision, is slightly influenced by the environment and is good in universality can be realized.
Description
technical field [0001] The present invention relates to the technical field of positioning, in particular to an electronic device and a positioning method. Background technique [0002] Accurately and quickly obtaining the location of the electronic device itself in an unknown environment is the key to realizing the intelligence of the electronic device, and it is also the basis for the electronic device to perform other tasks. Currently commonly used positioning methods include: a positioning method based on a Global Positioning System (GPS, Global Positioning System), a positioning method based on an inertial navigation system, a positioning method based on visual information, and the like. [0003] Among them, the GPS-based positioning method has low positioning accuracy and is difficult to adapt to high-precision application scenarios, and this method needs to receive satellite signals to achieve positioning, the application environment is limited, and the real-time perf...
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IPC IPC(8): G01C21/00
CPCG01C21/00
Inventor 申浩李南君
Owner LENOVO (BEIJING) LTD