“鬼”成像，又称关联成像或者量子成像，是一种基于参考光场与目标探测光场之间的关联函数的一种新型成像技术.本文利用负片成像方法在多媒体教室中实现了热光鬼成像.研究发现，采用此成像方法对系统硬件要求较低.其中对光源亮度的要求可以降低4 倍左右，即使当投影仪亮度为1 200 lm、背景亮度为450 lm 时也可以得到较清晰的图像，绝大多数多媒体教室可实现这一条件.本研究不仅可以将量子光学中最前沿的研究成果作为演示实验引入课堂，激发学生的学习兴趣，还可以促进鬼成像走出实验室，扩展其实际应用.

“Ghost”imaging，also known as correlated imaging or quantum imaging，is a kind of new imaging technology based on the correlation function between the reference light field and target light field． Using the nega-tive imaging method，we achieve successfully the thermal ghost imaging in the multimedia classroom． It has been found that the ghost imaging using the negative imaging method can be realized with low system resources． The re-quirement for the brightness of the light source can be reduced by about four times． When the projector’s brightness is 1200 lumens or the background brightness is 450 lumens，a clear ghost image can be obtained; most multimedia classrooms can easily meet these requirements． This study not only can introduce the forefront techniques in quan-tum optics research field into the classroom as a demonstration experiment，but also stimulate students’interest in learning． In addition，it can also promote the ghost imaging out of the lab and extend its practical application．