Mixed reality,as a typical form of a multimodal digital information system,aims to seamlessly merge virtual information with real-world information.It is one of the key technologies for the next-generation Internet.In mixed reality systems,the efficient generation of three-dimensional scenes,as the core element of virtual space,has been a key research focus in this field.In recent years,the develop-ment of artificial intelligence-assisted content generation method has introduced novel approaches to addressing this issue.This paper pro-vides a synthesis and summary of various methods for three-dimensional scene generation in recent years and offers an analysis and out-look on their development trends.
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