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Data synchronization method, device and system

A data processing device and a technology for detecting data, applied in the field of image processing, can solve the problems of reduced target detection accuracy, inability to fuse 3D point cloud data and video image data, and inability to ensure that lidar and image acquisition devices collect data synchronously. The effect of improving accuracy and improving accuracy

Pending Publication Date: 2020-10-02
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0005] However, as independent sensors, the lidar and image acquisition equipment cannot guarantee the simultaneous acquisition of data by the lidar and image acquisition equipment, and cannot fuse the 3D point cloud data and video image data at the same time, which reduces the accuracy of target detection
For example, it is impossible to guarantee that both lidar and image acquisition equipment collect data at time 1, and it is impossible to fuse the 3D point cloud data and video image data at time 1

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Embodiment Construction

[0043] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0044]It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second i...

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Abstract

The invention provides a data synchronization method, device and system. A processing chip is used for receiving a scanning position indication signal sent by a laser radar, determining detection azimuth information of the laser radar according to the scanning position indication signal, and sending a first control signal to an image acquisition device according to the detection azimuth information, the first control signal being used for controlling the image acquisition device to complete exposure when the laser radar scans to the overlap area, so that a video image output by the image acquisition device is synchronized with detection data output by the laser radar. According to the technical scheme of the invention, the laser radar and the image acquisition device can obtain the data ofthe target view field at the same time, and the laser radar and the image acquisition device can synchronously obtain the data.

Description

technical field [0001] The present application relates to the field of image processing, in particular to a data synchronization method, device and system. Background technique [0002] Lidar is a radar system that uses infrared laser as the working medium for target detection. It has the characteristics of high resolution, long detection distance, and is not affected by light conditions. It is a sensor that can detect three-dimensional spatial depth information. According to the number of scanning beams, lidar can be divided into single-line lidar and multi-line lidar. According to the different laser scanning methods, it can be divided into mechanical lidar and solid-state lidar. [0003] Image acquisition equipment is a sensor that collects video image data. Video image data can provide information such as shape, color, and texture. Video image data is obtained by exposing a fixed field of view using an imaging device. [0004] With the improvement of the accuracy requir...

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Application Information

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IPC IPC(8): G01S17/89
CPCG01S17/89Y02A90/10
Inventor 王映宇
Owner HANGZHOU HIKVISION DIGITAL TECH