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Device and method for sensing object position

A technology for detecting devices and objects, which is used in measurement devices, surveying and navigation, photogrammetry/video surveying, etc. The effect of fast calculation and increased cost

Active Publication Date: 2010-03-31
AUTOMOTIVE RES & TESTING CENT
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a device and method for object position detection, which does not require the use of radar, and can overcome the disadvantages of the existing image-based object detection methods, such as large amount of calculation, poor real-time performance, and high requirements for system hardware.

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  • Device and method for sensing object position

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Embodiment Construction

[0017] The present invention discloses an object position detection device and method, in particular, a method for continuously capturing images of azimuths to be detected, and then converting the captured images into one-dimensional signal information of a distance axis by means of complexity estimation. And carry out numerical differential estimation on the one-dimensional signal information to obtain the one-dimensional signal differential value of the distance axis at a single time point, and finally calculate the difference value of the one-dimensional signal information at least two adjacent time points, and based on whether the one-dimensional signal differential value It is greater than or equal to a preset threshold to determine the position of the object; and then judge the approaching state of the object based on whether the one-dimensional signal information difference of the at least two adjacent time points is greater than or equal to a preset threshold; thereby al...

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Abstract

The invention discloses a device and a method for rapidly sensing an object position, in particular the device and the method for sensing the object position directly applied to various image systems.The invention mainly aims at carrying out image pick-up on an area in a direction to be sensed through the image system according to a user, and an image processing unit judges the position and relevant information of the object through selection of images of scene areas and an object recognition method. The method for processing image data comprises a step of converting two-dimension image datainto one-dimension signal information of a distance axle, and object recognition comprises steps of judging the position of the object by means of utilizing numerical value differential estimation tothe one-dimension signal information, and judging the approach state of the object to the difference of the one-dimension signal information of two adjacent images which are continuously input. The algorithm has small computation and favorable transportability.

Description

technical field [0001] The present invention relates to an object position detection device and method, in particular to a device and method for dynamic object position detection using an image system. Background technique [0002] With the development of science and technology, modern people apply object distance detection technology to many daily life to improve the convenience and safety of life. For example, as modern people pay more and more attention to the safety of automobiles, many car manufacturers have successively proposed new technologies such as vehicle safety frameworks and collision prevention devices in recent years. Among them, the vehicle collision safety warning system is one of the most eye-catching technologies. Therefore, in recent years, many vehicle safety systems have been developed, such as: lane departure warning, reversing assistance system and vehicle blind spot warning system. Among them, the vehicle blind spot warning system has a remarkable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00G01C11/04
Inventor 陈加增高祥钧尤信镔
Owner AUTOMOTIVE RES & TESTING CENT
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