Mobile phone camera MIPI-PHY implementation and display by FPGA

ZHANG He; LI Gang; ZHANG Ye

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Mobile phone camera MIPI-PHY implementation and display by FPGA

更新时间：2020-08-12

- Mobile phone camera MIPI-PHY implementation and display by FPGA
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 4, Pages: 553-558(2014)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Received：01 January 2014，
  
  Revised：15 January 2014，
  
  Published：05 August 2014
- 稿件说明：
移动端阅览
张赫, 李刚, 张叶. 手机摄像头MIPI-PHY的FPGA实现与显示[J]. 液晶与显示, 2014,29(4): 553-558

ZHANG He, LI Gang, ZHANG Ye. Mobile phone camera MIPI-PHY implementation and display by FPGA[J]. , 2014,29(4): 553-558
张赫, 李刚, 张叶. 手机摄像头MIPI-PHY的FPGA实现与显示[J]. 液晶与显示, 2014,29(4): 553-558 DOI：

ZHANG He, LI Gang, ZHANG Ye. Mobile phone camera MIPI-PHY implementation and display by FPGA[J]. , 2014,29(4): 553-558 DOI：

摘要

目前高端手机摄像头均为MIPI接口，该接口信号不能直接通过FPGA或DSP采集。但随着仪器设备的小型化趋势和手机摄像头性能的不断提高，使得在某些军事、工业设备上使用手机摄像头成为重要的方案之一。为了让手机摄像头在上述领域使用，本文设计了一种可以接收并处理MIPI信号的通用MIPI-PHY。选择适合的FPGA，设计电气匹配和管脚约束来采集专用电平的信号；再根据信号协议，将混叠了各种信息的MIPI信号进行处理，分离出行、场同步信号，进行时序整合；根据整合后的信息将图像信号解码成通用的LVCMOS信号并进行成像实验。在帧频为22 fps、像素分辨率3 2642 448时成像质量高、无畸变、长时间连续成像无丢帧现象，证明了该设计的可靠性和稳定性。同时程序可移植性强、输出为并行信号，满足开发人员的使用要求，已应用到某些具体项目中。

Abstract

High-performance mobile phone cameras are MIPI interface currently

its signal can't be collected by FPGA or DSP directly. However

with the miniaturization trend of equipment and improvement of the performance

using mobile phone cameras becomes one of the most important schemes in the military and industrial areas. In order to use mobile phone cameras in the areas mentioned above

this paper presents a common MIPI-PHY which can receive and process MIPI signal. An appropriate FPGA is adopted to collect the special voltage-level signal by designing electrical matching and pin construction. According to the signal protocol

the aliasing MIPI signal is processed

separated and integrated sequentially

then image information is decoded into common LVCMOS signal according to the integrated signal. Under the condition that frame rate is 22 fps and image resolution is 3 2562 448

a high imaging quality is achieved via this system with no distortion and frame losing. What's more

with powerful transplantable capability and parallel signal

the program can satisfy developer's need and is already applied into some projects.

关键词

Keywords

references

MIPI Alliance,Inc. MIPI Alliance Specification for Camera Serial Interface 2..http://www.mipi.org.[2] Xilinx Inc.Spartan-6 FPGA DATA Sheet:DC and Switching Characteristics..http://www.xilinx.com.[3] 王剑宇,苏颖. 高速电路设计实践 [M]. 北京:电子工业出版社:68-71. Wang J Y, Su Y. Practice of High Speed Circuit Design [M]. Beijing: Publishing House of Electronics Industry: 68-71.(in Chinese)[4] 王增发,孙丽娜. CFA图像实时插值在FPGA上的应用 [J]. 液晶与显示,2013,28(4):615-619. Wang Z F,Sun L N. Application of CFA images interpolation algorithm in FPGA real-time system [J]. Chinese Joumal of Liquid Crystals and Display,2013,28(4):615-619. (in Chinese)[5] 冉峰,杨辉,黄舒平. 面阵CCD彩色视频图像实时采集系统的设计 [J]. 光学精密工程,2010,18(1):273-280. Ran F,Yang H,Huang S P. Design of real-time color video capture system for area array CCD [J]. Opt. Precision Eng.,2010,18(1):273-280. (in Chinese)[6] 郑争兵. 基于FPGA的图形点阵液晶显示系统设计与实现[J]. 液晶与显示,2013,28(3):403-407. Zhang Z B. Design and implementation of graphics dot matrix LCD based on FPGA [J]. Chinese Joumal of Liquid Crystals and Display, 2013,28(3):403-407. (in Chinese)[7] Samsung Electronics Co.,Ltd. S5K3H2Y_Datasheet_REV0.3[8] 苗健宇,张立平,翟岩,等.小型连续变焦相机的结构实现 [J].中国光学,2014,7(1):169-174.Miao J Y,Zhang L P,Zhai Y, et al. Structural realization of small zoom camera [J].Chinese Optics,2014,7(1):169-174.

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