Research And Design Of Medical Video Capture And Transmission System Based On DSP

Science and technology have penetrated into various fields with the development of society today,which has greatly facilitated people’s lives.In particular,the application of science and technology to medical care is of great significance to people’s health.As an important teaching material in medical treatment,surgical video summariz and exchange surgical experience data,it is particularly important to be able to save it completely and clearly.However,there are much problems in video capture,storage and transmission in existing devices,even situations motion blur.This article show a design of high-definition video acquisition and transmission system based on DSP in view of the above problems.The system can achieve the high-definition video acquisition of 1080P,and study the deblurring algorithms for the motion blur images,which generated during the medical surgical video collection process.The main tasks of this design are as follows:Firstly,by comparing several current video acquisition and transmission systems,the Hi3516A chip is introduced.Then through the selection of sensors,the system architecture with Hi3516A+IMX302 as the core is determined.finally,through the framework,the overall design scheme of the system is introduced.Secondly,in order to satisfy the requirements of design,an overall hardware platform based on DSP is built.The design part is divided into four lajor modules,namely power supply module,video input module,video core processing module and video transmission module.Among them,the power supply module is mainly designed for the power required by each module,and it can meet the different power requirements of each module through the level conversion of different chips.The input module is mainly designed for the interface of Sony’s IMX302 CMOS sensor and Hi3516A chip.Then,in terms of system software,the Hi3516A SDK was installed to complete the system’s embedded cross-compilation environment.Then the J-boot compiler,the Linux kernel,the root file system,and the entire software environment were completed.design.Finally,the entire hardware and software environment was set up,and the system design of the entire video acquisition and transmission system was completedFinally,aiming at the problem of motion blur produced by medical videos,three kinds of motion defuzzification algorithms were experimentally analyzed and compared,and RL recovery method was finally selected.Through experiments and analysis of wavelet denoising analysis,it was finally determined that the denoising was performed by wavelet threshold and then passed.The RL iterative restoration algorithm is used as an overall algorithm scheme for medical video deblurring.