MAX-ENTROPY CONTROL FOR HIGH QUALITY DIGITAL IMAGING

高质量数字成像的最大熵控制

• 批准号: 6292349
• 负责人: Paul W. TRUITT
• 金额: $ 10.77万
• 依托单位: KESTREL CORPORATION
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2002-05-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6292349
• 关键词: artificial intelligence; bioengineering /biomedical engineering; bioimaging /biomedical imaging; biomedical equipment development; charge coupled device camera; computer program /software; computer system design /evaluation; diabetic retinopathy; digital imaging; image processing; ophthalmoscopy; thermodynamics

A low-cost, high-resolution, high-contrast color digital camera optimized for ophthalmology will be demonstrated. The maximum entropy camera will be tested for its effectiveness in meeting the image quality requirements for telemedicine and for remote screening of pre-proliferative and proliferative diabetic retinopathy. The proposed device exploits recent technological advances in high sensitivity CCD cameras and digital signal processing electronics. Today's low cost 8-bit CCD cameras do not have the dynamic range to image the human retina, which is characterized by regions of high reflectivity (20-40 percent), such as the optic disc, and very low reflectivity (<2 percent), such as the macula and fovea. Existing digital cameras used in ophthalmology are not designed to deal with the high dynamic range and do not consider the special re-saturated characteristics of the retina. The proposed device will be shown to offer significant improvement over existing digital color cameras by addressing each of the deficiencies mentioned. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE

低成本，高分辨率，高对比度彩色数码相机优化 对于眼科，将被证明。最大熵相机 将测试其在满足图像质量要求方面的有效性 用于远程医疗和远程筛选预订和 增殖性糖尿病性视网膜病。提出的设备可利用最近的 高灵敏度CCD摄像机和数字信号的技术进步 处理电子设备。今天的低成本8位CCD摄像机没有 动态范围图像人类视网膜，其特征是 高反射率（20-40％），例如光盘，非常低 反射率（<2％），例如黄斑和凹fo。现有数字 眼科中使用的摄像机并非旨在处理高动态 范围，不考虑特殊的重新饱和特征 视网膜。提出的设备将显示可显着改善 通过解决每个缺陷来解决现有的数字颜色摄像机 提及。 拟议的商业应用程序：不可用