Method and device for transmitting three-dimensional image data and three-dimensional imaging system

Abstract

The invention provides a method and a device for transmitting three-dimensional image data and a three-dimensional imaging system. The method comprises the following steps: after receiving three-dimensional image data collected by a three-dimensional camera, firstly, selecting an encoding rule matched with a data format to which the three-dimensional image data from a plurality of preset encoding rules, then, converting the format of the three-dimensional image data according to the selected encoding rule to obtain three-dimensional image transmission data; and finally, transmitting the three-dimensional image transmission data to a Camera Link collection card through a driving chip and an LVDS cable. According to the method provided by the embodiment of the invention, the data format in a Camera Link protocol through the preset encoding rule, the three-dimensional image data are transmitted through a Camera Link interface, and the data transmission speed and the anti-jamming capability in a data transmission process are improved.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a transmission method and device for three-dimensional image data and a three-dimensional imaging system. Background technique [0002] At present, 3D imaging devices are widely used in mold design, industrial measurement and other fields. With the increasing application of 3D imaging devices, the requirements for data transmission speed and quality between digital cameras and image acquisition cards in 3D imaging devices are getting higher and higher. come higher. [0003] Currently, a method for transmitting 3D image data is provided in the related art. The method includes: receiving 3D image data collected by a 3D camera, wherein the depth information in the 3D image data is acquired by a depth sensor, and converting the 3D image to The data is transmitted to the depth image processor, so that the depth image processor performs corresponding data processing,...

AI Technical Summary

Problems solved by technology

[0003] Currently, a method for transmitting 3D image data is provided in the related art. The method includes: receiving 3D image data collected by a 3D camera, wherein the depth information in the 3D image data is acquired by a depth sensor, and converting the 3D image to The data is transmitted to the depth image processor, so that the depth image processor performs corresponding data processing, and then, the processed three-dimensional image data is transmitted to the USB controller, so that the USB controller converts the processed three-dimensional image data In order to conform to the data of the USB protocol format, finally, the converted data conforming to the USB protocol format is transmitted to a computer or other terminals through the USB interface, but since the 3D image data collected by the 3D camera is converted into the data of the USB protocol format and then For transmission, not only the data transmission speed is slow, but also the anti-interference ability is weak during the data transmission process

In addition, although the CameraLink interface standard is a high-speed serial data connection standard, its transmission rate and bandwidth are very high, its structure is simple, and data transmission can be realized without complicated communication protocols, and the CameraLink interface has been applied to digital In industrial cameras, the CameraLink interface itself is a transmission interface defined for two-dimensional color images, so it can only be applied to the transmission of plane image data between digital cameras and image acquisition cards

[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the related art: Although the CameraLink interface is used in the related art to carry out image data transmission speed, high stability, and strong anti-interference ability, but because the CameraLink interface is only applicable to two The transmission of three-dimensional color image data cannot realize the transmission of three-dimensional image data, and the use of USB interface for three-dimensional image data transmission results in slow data transmission rate, poor stability, and poor anti-interference ability during data transmission

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