支持压缩数据传输的MIPI接收端电路设计  

MIPI receiver port circuit design supporting compressed data transmission

作　　者：蒋智超 尹飞飞[1] 刘兴辉[1] JIANG Zhichao;YIN Feifei;LIU Xinghui(School of Physics,Liaoning University,Shenyang 110036,China)

机构地区：[1]辽宁大学物理学院,辽宁沈阳110036

出　　处：《电子设计工程》2024年第13期69-73,共5页Electronic Design Engineering

基　　金：辽宁省自然科学基金资助项目(2021-MS-148)。

摘　　要：随着移动设备摄像模块的像素越来越高,所需传输的数据量也越来越大,导致数据传输时间越来越长。文中提出了一种应用于MIPI CSI-2协议的接收端口电路,在传统的MIPI接口电路支持数据类型的基础上,增加了支持RLE和MJPEG两种压缩格式的数据类型,可有效减少所需传输的数据量,提高传输效率。这两种压缩格式数据可应用于不同的工作场景,采用无损压缩数据传输模式在不影响图像质量的情况下可将传输效率提升95%,而采用有损压缩数据传输模式则可在保证较高图像质量的前提下将提升效率约154倍,与传统MIPI接口相比具有显著优势。With the increasing pixel count of mobile device camera modules,the amount of data to be transmitted is also increasing,leading to the data transmission time is getting longer and longer.A receiver port circuit design applied to the MIPI CSI-2 protocol is proposed,which adds two compressed format data types,RLE and MJPEG,to the data types supported by the traditional MIPI interface circuit,which can effectively reduce the amount of data to be transmitted and increase the transfer rate.The two compressed formats can be used in different scenarios,with the lossless compressed data transfer mode achieving a 95%speed increase without compromising image quality,and the lossy compressed data transfer mode achieving a speed increase of approximately 154 times while maintaining high image quality,providing a significant advantage over the traditional MIPI interface.

关 键 词：MIPI CSI-2 数据类型 压缩数据 

分 类 号：TN432[电子电信—微电子学与固体电子学]