CVCLNov 27, 2024

Reconstructing Animals and the Wild

arXiv:2411.18807v18 citationsh-index: 20CVPR
Originality Incremental advance
AI Analysis

This addresses a challenging computer vision problem for applications in wildlife analysis and scene understanding, but it is incremental as it builds on prior work by incorporating environmental context.

The paper tackles the problem of 3D reconstruction of natural scenes containing animals and their environments from single images, proposing a method that uses a synthetic dataset and autoregressive modeling to achieve generalization to real-world images.

The idea of 3D reconstruction as scene understanding is foundational in computer vision. Reconstructing 3D scenes from 2D visual observations requires strong priors to disambiguate structure. Much work has been focused on the anthropocentric, which, characterized by smooth surfaces, coherent normals, and regular edges, allows for the integration of strong geometric inductive biases. Here, we consider a more challenging problem where such assumptions do not hold: the reconstruction of natural scenes containing trees, bushes, boulders, and animals. While numerous works have attempted to tackle the problem of reconstructing animals in the wild, they have focused solely on the animal, neglecting environmental context. This limits their usefulness for analysis tasks, as animals exist inherently within the 3D world, and information is lost when environmental factors are disregarded. We propose a method to reconstruct natural scenes from single images. We base our approach on recent advances leveraging the strong world priors ingrained in Large Language Models and train an autoregressive model to decode a CLIP embedding into a structured compositional scene representation, encompassing both animals and the wild (RAW). To enable this, we propose a synthetic dataset comprising one million images and thousands of assets. Our approach, having been trained solely on synthetic data, generalizes to the task of reconstructing animals and their environments in real-world images. We will release our dataset and code to encourage future research at https://raw.is.tue.mpg.de/

Foundations

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