We create a virtual-real integrated environment that conforms to the user＇s memory by taking reminiscent intervention therapy as the technical core and combining virtual reality and green screen photography. In this way, users can have an interactive experience in the reminiscent intervention scene integrated with virtual reality, so as to achieve the purpose of reminiscent intervention therapy.

Compared with the virtual scene created by modeling software, the virtual Reminiscent intervention scene through multiple 360 images allows patients not only to move freely, but also to enhance their visual experience. Besides, this method inserts virtual elements (such as images and videos related to the patient＇s personal experience) through green screen technology. It can improve the emotional connection of patients and enhance the effectiveness of nostalgia therapy.

Reminiscent intervention VR as a non-pharmacological intervention to allow patients to experience their past memories in a virtual reality and to improve the treatment outcome. Through 3D images, sound and visual effects can provide patients a sense of comfort and well-being, and allow them to experience difficult-to-access scenes, helping to evoke their long-term memories and stabilizing emotions, which will improve patients＇ cognitive functions, mental symptoms and enhance the quality of care