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Water lamp beacon rapid identifying system

A recognition system and water lamp technology, applied in character and pattern recognition, pattern recognition in signals, instruments, etc., can solve the problems of recognition failure, increased computational complexity, too long binary code, etc., and achieve rapid recognition and time span small effect

Active Publication Date: 2015-02-04
深圳市亿境虚拟现实技术有限公司
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AI Technical Summary

Problems solved by technology

When the number of beacons appearing in the same screen is too large, the computational complexity increases and rapid identification cannot be achieved
[0004] There is another beacon system, the beacon is in the form of a two-dimensional code, but its computational complexity is still too large to be suitable for portable devices
[0005] There is also a beacon system. The beacon uses a binary strobe method. When the number of beacons is too large (more than 100), the binary code is too long (more than 7 digits), and it is difficult to continuously track and collect during fast movement. It is easy to cause recognition failure

Method used

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  • Water lamp beacon rapid identifying system
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Embodiment Construction

[0025] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0026] The principle block diagram of the water lamp type beacon rapid identification system is as follows: figure 1 shown. The standard time signal generator sends out a standard time signal, which is received by the image acquisition system and all beacons at the same time, so the time of the beacon and image acquisition system is synchronized. According to the control signal given by the control signal generator and the given working sequence n, the beacon sends out a pulse signal at (n-1)×△t time after the start time t0 of a certain working cycle, which is intercepted by the image acquisition system. The image processing system analyzes and determines the pulse occurrence time ti according to the collected image sequence, because ti=t0+(n-1)×△t, so n can be calculated, then the beacon number N=n, the ...

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Abstract

A water lamp beacon rapid identifying system can be used to identify rapidly beacon that is large in terms of amount in environment in the field of computer vision. The system includes a beacon system and an image collecting system, wherein a beacon system consists of a plurality of beacons, and the beacons operate in a water lamp manner, and emit in sequence pulse signals. An image coordinate that a pulse signal occurs and the occurrence time can be obtained through analysis of an image sequence. Since operating sequence of each beacon is known, the image coordinate of the collected pulse signal can be corresponded to a beacon number to thereby implement rapid identification of a larger number of beacons.

Description

technical field [0001] The invention relates to a fast identification system of a water lamp type beacon, which can be used in the field of computer vision to quickly identify a large number of beacons in the environment. Background technique [0002] In the field of computer vision, especially in the field of augmented reality, image analysis of environmental beacons can provide relative position and attitude information of image acquisition devices (such as cameras). [0003] At present, the beacon system mainly used is the always-on beacon system, which does not distinguish between beacons, but uses an exhaustive method to calculate. When the number of beacons appearing in the same frame is too large, the computational complexity increases and fast identification cannot be achieved. [0004] There is another beacon system. The beacon is in the form of a two-dimensional code, but its computational complexity is still too large to be suitable for portable devices. [0005...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/00G06F2218/10
Inventor 覃政
Owner 深圳市亿境虚拟现实技术有限公司
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