Camera simulation system of MIPI and CSI interfaces

Abstract

The invention discloses a camera simulation system with MIPI and CSI interfaces. The system comprises: a host graphics card module, wherein the host graphics card module comprises a simulation cameraand a video interface, and the simulation camera collects video stream data and outputs the video stream data through the video interface; a video decoding chip which is used for receiving the video stream data output by the host graphics card module and completing the decoding of the video stream data; a reverse code module which is used for transcoding the video stream data into RAW data streams; and an output module which converts the RAW data stream into serial high-speed serial interface data and outputs the serial high-speed serial interface data, and supports MIPI D-Phy and CSI-2 interfaces. The video decoding chip completes conversion from a video interface to a parallel interface, and the format of the converted video stream data is YUV44424bit, RGB4424bit, and YUV42216bit. The architecture provided by the invention supports an MIPI D-Phy interface and a CSI-2 interface; according to the invention, multi-channel camera simulation is supported; and according to the invention, RAW format data output by the camera is completely simulated.

Description

technical field [0001] The invention relates to the technical field of the output interface of a camera simulation system, in particular to a camera simulation system with MIPI and CSI interfaces. Background technique [0002] The automatic driving of intelligent vehicles is mainly reflected in the use of various sensors to complete the perception and understanding of the surrounding environment, so as to plan the optimal driving route. As the most important sensor of smart vehicles at present, the vehicle camera costs far less than lidar, and has the advantages of rich information and fast sampling rate. Therefore, autonomous driving is increasingly inclined to use on-board cameras to collect data. [0003] In the actual application of autonomous driving, it is usually necessary to test the actual effect of the route planning algorithm, often facing the high cost of the actual road, and the safety risk of immature algorithms. The practice in the industry is to use a simul...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the MAX9291 chip provides an HDMI interface to GMSL interface, which is suitable for the transmission of video, audio and control signals. This solution only supports 24bit RGB / YUV data format output, and only supports GMSL interface with specific deserialization device, the scope of use is small, so we propose a camera simulation system with MIPI and CSI interface to solve the above problems

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