基于波前编码的无热化红外成像技术综述（特邀）

波前编码红外成像技术是一种结合光学编码和数字解码两步成像的计算光学成像技术。波前编码无热化红外成像系统通过在红外光学系统的光阑附近增加特殊面形的光学相位板，对场景红外辐射进行编码调制，使得在宽的环境温度范围内红外焦平面探测器输出的中间编码图像具有高度一致性，再对中间编码图像进行数字解码得到清晰红外图像。近年来，国内外学者开展了大量波前编码无热化红外成像技术的理论分析和原理验证，表明其无热化特性的有效性。文中结合作者近年来的研究工作，主要介绍波前编码无热化红外成像技术的研究背景、基本原理、关键技术、国内外典型的设计方案和原理样机、并展望了波前编码红外成像技术的应用价值和发展趋势。

Review on athermalized infrared imaging technology based on wavefront coding (Invited)

As a novel computational optical imaging technology, wavefront coding infrared imaging technology includes two stages of optical coding and digital decoding. The wavefront coding athermalized infrared imaging system is realized by mounting a special-form phase mask near the stop of an infrared optical system to modulate the incident radiation. Its infrared detector produces intermediate coded images. Those intermediate coded images have high similarity over a wide range of ambient temperature. An intermediate coded image is decoded to produce a decoded image with sharpness. In recent years, researchers have made much contribution to its theory and experiment to prove its validity for athermalization. In this paper, combining their previous related works, the authors have respectively introduced research background, basic principle, key technique, typical design scheme and experimental prototype, and prospected its application and development trend in future.