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Abstract

Methods and systems for generating a sparse neural radiance field and for real-time image rendering via the sparse neural radiance field are provided. An example method for generating a sparse neural radiance field involves encoding source images of a scene, decoding feature information for a set of target views based on the encoded source image features, and mapping the decoded feature information for the set of target views to a sparse three-dimensional representation of a scene. An example method for real-time image rendering via a sparse neural radiance field involves determining the parts of the sparse neural radiance field to be used to render the image based on the rendering view, retrieving the appropriate feature information stored in the sparse neural radiance field, and decoding the retrieved feature information into a rendered image.

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