The principle of MIPI camera module is mainly based on MIPI interface, which is a standardized interface for communication between chips inside mobile devices, and its full name is Mobile Industry Processor Interface.
Basic principles and functions of MIPI interface
MIPI interface defines physical layer and data transmission protocol, which aims to optimize power consumption, increase data transmission rate, and reduce the number of pins and circuit board area of mobile devices. It is widely used in the connection between camera, display, storage and other peripherals and main processor of mobile devices such as smartphones, tablets, wearable devices.
Working principle of MIPI camera module Data transmission: MIPI camera transmits data with main processor (such as application processor) through MIPI interface. This interface supports high-speed and low-latency data transmission, ensuring that the image and video data captured by the camera can be quickly and accurately transmitted to the processor for processing. Protocol support: MIPI interface supports multiple protocols. For cameras, CSI (Camera Serial Interface) protocol is the key, which defines how image data is exchanged between camera sensor and processor.
Physical layer: The physical layer of the MIPI interface defines the electrical characteristics and physical connections. Common physical layer implementations include D-PHY and C-PHY, which optimize data transmission rate and power consumption respectively. Synchronization and control: The operation of MIPI cameras also involves the transmission of synchronization signals and control signals, which are used to ensure synchronous operation between the camera and the processor and allow the processor to configure and control the camera, such as adjusting parameters such as exposure time and gain. Image processing: After the processor receives the raw image data from the MIPI camera, it will perform a series of image processing operations, such as denoising, color correction, image compression, etc., to generate the final image for display or storage.
