基于OV10635的车载高清全景成像系统的设计与研究

发布时间：2018-03-21 21:40

本文选题：OV10635　切入点：CMOS图像传感器　出处：《天津科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着社会经济和城市化建设的飞速发展,人们的行车安全意识越来越高,汽车安全技术正向着车载辅助视觉系统技术的智能方向发展。车载全景成像系统是为了解决汽车盲区问题而出现的新一代汽车辅助安全设备,它比现有的车载视频传感器有更为宽阔、清晰的可视效果。车载全景显示系统旨在让驾驶员在行车、泊车过程中更安全,实时的向驾驶员显示车辆周围的全景鸟瞰图像,让驾驶员了解车辆四周障碍物和行人的位置及其与车辆的距离,确保驾驶员实时掌握车辆周围的情况,消除驾驶员的视觉盲区与死角。当前车载全景成像系统普遍使用30万像素的CMOS图像传感器芯片,本课题将提出一种100万像素的高清车载全景成像系统。它通过在汽车周围架设能覆盖车辆周边所有视场范围的4个广角摄像头,对车身周围360度进行实时多路视频图像采集并通过车载全景辅助泊车系统处理得到一幅包括车辆周边路面情况的车身俯视图,直观地呈现出车辆所处的位置和周边情况。让驾驶员清楚查看车辆周边是否存在障碍物并了解障碍物的相对方位与距离,帮助驾驶员轻松停泊车辆。不仅非常直观,而且不存在任何盲点。本课题将以OV10635CMOS为例阐述车载全景成像系统的系统组成、硬件设计、系统调试、软件调试平台设计及摄像头图像质量调试等进行研究。首先,本设计中采用一种新的凝视型视场全景成像技术——鱼眼透镜成像,可以实现水平360度、垂直210度的超广角成像。然后根据全景成像系统的要求选用OmniVision OV10635的CMOS图像传感器芯片OV10635,使用Cadence软件进行车载全景系统的原理图设计,包括电源模块的设计,系统外围电路的设计,地的处理以及对四层PCB板的布局布线的研究。最后,基于飞思卡尔单片机MC9SQE8RM的软件调试平台,通过此调试平台对车载全景摄像头图像质量进行了控制调整,并最终取得优质的图像画面。
[Abstract]:With the rapid development of social economy and urbanization, people are more and more aware of driving safety. Automotive safety technology is developing towards the intelligent direction of vehicle-aided visual system technology. Vehicle panoramic imaging system is a new generation of automotive auxiliary safety equipment to solve the problem of automotive blind area. The panoramic display system is designed to provide drivers with a more secure, real-time panoramic bird's view of the vehicle as they drive and park. Let the driver know the position of obstacles and pedestrians around the vehicle and the distance from the vehicle, and ensure that the driver has a real-time grasp of the situation around the vehicle, Eliminate the blind area and dead angle of driver. Currently, 300000 pixel CMOS image sensor chip is widely used in vehicle panoramic imaging system. In this paper, a 1 million pixel high definition vehicle panoramic imaging system is proposed. It is built around the vehicle with four wide-angle cameras that can cover all the field of view around the vehicle. A real-time multi-channel video image of 360 degrees around the car body is collected and processed by the panoramic parking system to obtain a view of the car body, which includes the road surface around the vehicle. The position and surroundings of the vehicle are displayed intuitively. It is not only very intuitive for the driver to check clearly whether there are obstacles around the vehicle and understand the relative orientation and distance of the obstacles, but also to help the driver park his vehicle easily. And there is no blind spot. This subject will take OV10635CMOS as an example to explain the system composition, hardware design, system debugging, software debugging platform design and camera image quality debugging. In this design, a new staring field of view panoramic imaging technique, fish-eye lens imaging, can be used to realize horizontal 360 degrees. According to the requirements of the panoramic imaging system, the CMOS image sensor chip OV10635 of OmniVision OV10635 is selected, and the schematic design of the vehicle panoramic system is carried out by using Cadence software, including the design of the power module. The design of the peripheral circuit of the system, the processing of the ground and the study of the layout and wiring of the four-layer PCB board. Finally, the software debugging platform based on the MC9SQE8RM of Freescale single chip microcomputer, Through this debugging platform, the image quality of vehicle panoramic camera is controlled and adjusted, and the high quality image picture is obtained.
【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP391.41

【相似文献】