SVGDreamer++: Advancing Editability and Diversity in Text-Guided SVG Generation

• URL: http://arxiv.org/abs/2411.17832v2
• Date: Fri, 13 Dec 2024 11:40:57 GMT
• Title: SVGDreamer++: Advancing Editability and Diversity in Text-Guided SVG Generation
• Authors: Ximing Xing, Qian Yu, Chuang Wang, Haitao Zhou, Jing Zhang, Dong Xu,
• Abstract summary: We propose a novel text-guided vector graphics synthesis method to address limitations of existing methods.<n>We introduce a Hierarchical Image VEctorization (HIVE) framework that operates at the semantic object level.<n>We also present a Vectorized Particle-based Score Distillation (VPSD) approach to improve the diversity of output SVGs.
• Score: 31.76771064173087
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently, text-guided scalable vector graphics (SVG) synthesis has demonstrated significant potential in domains such as iconography and sketching. However, SVGs generated from existing Text-to-SVG methods often lack editability and exhibit deficiencies in visual quality and diversity. In this paper, we propose a novel text-guided vector graphics synthesis method to address these limitations. To enhance the editability of output SVGs, we introduce a Hierarchical Image VEctorization (HIVE) framework that operates at the semantic object level and supervises the optimization of components within the vector object. This approach facilitates the decoupling of vector graphics into distinct objects and component levels. Our proposed HIVE algorithm, informed by image segmentation priors, not only ensures a more precise representation of vector graphics but also enables fine-grained editing capabilities within vector objects. To improve the diversity of output SVGs, we present a Vectorized Particle-based Score Distillation (VPSD) approach. VPSD addresses over-saturation issues in existing methods and enhances sample diversity. A pre-trained reward model is incorporated to re-weight vector particles, improving aesthetic appeal and enabling faster convergence. Additionally, we design a novel adaptive vector primitives control strategy, which allows for the dynamic adjustment of the number of primitives, thereby enhancing the presentation of graphic details. Extensive experiments validate the effectiveness of the proposed method, demonstrating its superiority over baseline methods in terms of editability, visual quality, and diversity. We also show that our new method supports up to six distinct vector styles, capable of generating high-quality vector assets suitable for stylized vector design and poster design. Code and demo will be released at: http://ximinng.github.io/SVGDreamerV2Project/

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