Imaging Simulation On New Fundus Camera System And Research On Its Image Mosaic Arithmetic

Diabetic Retinopathy is the most disease that causes patients blind at present becomes one of four eye diseases that make the patients blind. There is no obvious vision harm because DR occurs for several years, so the only effective way on is to periodic DR screening in good season before patients have vision harm. Fundus camera is currently one of the effective and popular DR screening instruments and it will gradually replace the traditional ophthalmoscope instrument.At present, most of the fundus camera instruments have some disadvantages home and abroad. The instrument requires the operation of professional ophthalmic doctor or nurse, the medical expense and the instrument cost are very high. Otherwise, the patients need dilating pupil and this brings side effect to patients. They bring the patients the great difficulty and inconvenience for the community hospitals in city and medical institutions of the remote devious area at countries. Therefore, the project Research on Remote DR Screening and Image Analysis System, which is the joint project of Ministry of Sanitation and Ministry of Education in Fujian Province, designs a new kind non-mydriatic camera system which overcomes the above problems by the particular optic design and the exact control software.The author mainly anticipates the task including the simulation of eye fundus imaging and image mosaic. On the base of the DR principle and ophthalmic phototropism study, the author analyze and contrast new fundus camera system with traditional fundus camera. The author will establish the eyeball model with 3DS MAX technology, imitate the simple eyeball dioptre system and simulate the narrow-angle imaging to ensure the rationality and authenticity of fundus image, which solves the object origin of later image process, then fast mosaics the nine piece of fundus images with the help of the image registration theory and acquire a piece of wide-view fundus image containing more information, thereby provides doctor with enough diagnostic detail, which solves the problem of narrow view...