微秒精度高时空分辨计算成像技术研究

项目名称： 微秒精度高时空分辨计算成像技术研究

项目编号： No.11475138

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 严明

作者单位： 西北核技术研究院

项目金额： 82万元

中文摘要： 微秒级高速成像技术在高速物理过程科学实验研究中发挥着重要作用，但由于国外对高性能特种图像传感器的垄断和技术封锁，国内自主知识产权的高分辨率微秒级高速连续成像系统一直处于空白。本项目提出一种基于计算成像的微秒精度高时空分辨连续成像方法，该方法将曝光编码理论应用于高速成像，充分利用CCD图像传感器片内电荷极高的转移速度，基于普通CCD图像传感器实现高分辨率微秒级连续成像。项目主要研究解决曝光编码应用于高速成像的关键基础理论和实现技术问题，突破微秒级曝光编码的实现、高速关键帧图像的获取与点扩散函数估算、复杂场景的编码优化设计与图像解码等关键问题，实现具有自主知识产权的高分辨率微秒级高速连续成像系统。项目提出的高时空分辨计算成像方法具有普适性和通用性，研究成果将解决曝光编码在高速成像应用中的基础理论和实现方法问题，具有重要的理论意义和实际应用价值。

中文关键词： 高速成像；计算成像；曝光编码；高时空分辨；微秒精度

英文摘要： Microsecond precision high speed imaging systems play an important role in experimental physics researches. Due to the monopolization of high performance image sensors and technology, in China, the high resolution microsecond precision high speed imaging systems and technology with independent intellectual property rights are in the blank. A new high speed imaging method is proposed based on coded exposure theory from computational photography. With this method, coded exposure theory is applied to high speed imaging. By taking full advantage of the high transferring speed of photoelectron, high resolution microsecond precision imaging performance can be achieved with ordinary CCD image sensors. Basic theory and key technique of implementation with this new method will be studied, such as implementation technique of microsecond precision coded exposure, acquisition of high speed key frame images and precise estimation of point spread function, design and optimization of exposure coding for complex scenarioes, decoding and reconstruction of coded images, etc. A high resolution microsecond precision imaging system with independent intellectrual property rights will be built. The new coded exposure high speed imaging method is generic and could be applied to many other systems. The research results have important meaning in theory and great value in applications.

英文关键词： Highspeed Imaging;Computational Photography;Coded Exposure;High Spatial-Temporal Resolution;Microsecond Precision