Information processing method and apparatus

An information processing method and feature information technology, applied in the field of information processing methods and devices, can solve the problems of slow speed, increase of feature information and map information, and increase of matching errors in the fusion process, and achieve the effect of accelerating the fusion speed

Active Publication Date: 2014-03-12
LENOVO (BEIJING) LTD
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Problems solved by technology

[0009] However, with the continuous increase of node information in the high-level (high level) SLAM process, it will inevitably lead to an increase in its redundant feature information and map information, which will increase the matching error and slow speed of the high-level fusion process, which will seriously affect Accuracy of final global map

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  • Information processing method and apparatus
  • Information processing method and apparatus

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Embodiment Construction

[0027] Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are assigned to components having substantially the same or similar structures and functions, and repeated descriptions about them will be omitted.

[0028] First, refer to Figure 1a and 1b to describe the principle of the solution according to the prior art.

[0029] Figure 1a and 1b The principle of the solution according to the prior art is illustrated.

[0030] In the prior art, in order to construct an environment map of an unknown environment, a mobile electronic device (for example, a mobile robot) continuously moves in an unknown environment to obtain various location points #1, #2, #2', #3, # 3', #4 and #4', etc. image observation data, position information and posture information, to determine whether these data information is effective for describing the ...

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Abstract

The invention discloses an information processing method and an information processing apparatus. The information processing method is applied to one or more mobile electronic devices which are used for simultaneous localization and mapping of an unknown environment. The method comprises the following steps that: n levels are created in the simultaneous localization and mapping of the unknown environment, wherein the n>= 2; repeated feature information contained by a plurality of nodes is filtered in an i-th level, wherein the i is in a range of 1 to n; and the plurality of nodes are reduced to a single node. Thus, by means of the information processing method and apparatus of the invention, a multi-level SLAM algorithm structure makes the process of the simultaneous localization and mapping (SLAM) processed in a plurality of levels in a distributed manner, and therefore, fusion speed of a global map can be greatly increased.

Description

technical field [0001] The present invention relates to the field of computer technology, and more specifically, the present invention relates to an information processing method and device. Background technique [0002] Simultaneous Localization and Mapping (SLAM) is currently a hot research topic in robot localization. The so-called SLAM is to integrate the positioning of mobile electronic devices (for example, mobile robots) with the creation of environmental maps, that is, the robot builds incremental environmental maps according to its own pose estimation and sensor perception of the environment during the movement process, and at the same time uses the The map realizes its own positioning. [0003] When the robot runs for SLAM for a long time, the scale of the scene experienced will continue to expand, and the execution overhead of SLAM will become unacceptable, and ultimately cannot meet the requirements of real-time SLAM. The core problem is how to achieve real-time...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
Inventor 张贺宋爽李南君
Owner LENOVO (BEIJING) LTD
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