PlantDreamer: Achieving Realistic 3D Plant Models with Diffusion-Guided Gaussian Splatting

• URL: http://arxiv.org/abs/2505.15528v1
• Date: Wed, 21 May 2025 13:51:57 GMT
• Title: PlantDreamer: Achieving Realistic 3D Plant Models with Diffusion-Guided Gaussian Splatting
• Authors: Zane K J Hartley, Lewis A G Stuart, Andrew P French, Michael P Pound,
• Abstract summary: We introduce PlantDreamer, a novel approach to 3D synthetic plant generation.<n>It can achieve greater levels of realism for complex plant geometry and textures than available text-to-3D models.<n>We evaluate our approach by comparing its outputs with state-of-the-art text-to-3D models.
• Score: 0.7937206070844555
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent years have seen substantial improvements in the ability to generate synthetic 3D objects using AI. However, generating complex 3D objects, such as plants, remains a considerable challenge. Current generative 3D models struggle with plant generation compared to general objects, limiting their usability in plant analysis tools, which require fine detail and accurate geometry. We introduce PlantDreamer, a novel approach to 3D synthetic plant generation, which can achieve greater levels of realism for complex plant geometry and textures than available text-to-3D models. To achieve this, our new generation pipeline leverages a depth ControlNet, fine-tuned Low-Rank Adaptation and an adaptable Gaussian culling algorithm, which directly improve textural realism and geometric integrity of generated 3D plant models. Additionally, PlantDreamer enables both purely synthetic plant generation, by leveraging L-System-generated meshes, and the enhancement of real-world plant point clouds by converting them into 3D Gaussian Splats. We evaluate our approach by comparing its outputs with state-of-the-art text-to-3D models, demonstrating that PlantDreamer outperforms existing methods in producing high-fidelity synthetic plants. Our results indicate that our approach not only advances synthetic plant generation, but also facilitates the upgrading of legacy point cloud datasets, making it a valuable tool for 3D phenotyping applications.

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