计算机科学 ›› 2025, Vol. 52 ›› Issue (3): 77-85.doi: 10.11896/jsjkx.240200102
钟悦1, 谷杰铭2
ZHONG Yue1, GU Jieming2
摘要: 元宇宙是三维的沉浸式互联空间。随着虚拟现实、人工智能等技术的发展,元宇宙正在重塑人类的生活方式。三维重建是元宇宙的核心技术之一,其中,基于深度学习的三维重建是计算机视觉领域的研究热点。针对手绘草图难以避免的前景和背景模糊性、绘制风格差异性和视角偏差问题,提出了基于注意力机制与对比损失的单视图草图三维重建方法,重建过程中无需额外的标注信息和交互操作。该模型首先通过空间变换模块矫正输入草图的空间位置,随后使用基于归一化的注意力模块在草图上建立长距离和多层次的依赖关系,利用草图的全局结构信息缓解前景和背景的模糊性所带来的重建困难,并设计对比损失函数使模型学习到对草图风格和视角不变的潜空间特征,提升模型对输入草图的鲁棒性。在多个数据集上的实验结果证明了所提模型的有效性和先进性。
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