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视觉感知数据驱动的产品造型智能生成设计方法

An Intelligent Generative Design Method for Product Modeling Driven by Visual Perception Data

  • 摘要: 为了更准确地把握用户对于产品的视觉感知规律和造型偏好, 智能化生成符合用户需求的产品造型设计方案, 提出一种利用稳定扩散模型将视觉感知数据与产品造型生成融合的设计方法. 首先通过K-modes聚类和KNN算法对用户进行集群细分和所属集群智能化识别; 然后根据设计特征的视觉感知模式, 使用眼动追踪技术获得用户对产品元素和语义2个特征层的视觉感知数据, 分别构建面向不同用户集群的元素特征和语义特征微量数据集; 最后基于DreamBooth和LoRA的多网络组合架构对稳定扩散模型微调训练, 建立先元素特征生成和后语义特征生成的产品造型生成的复合模型. 以电动车为例进行实例的结果表明, 模型训练时间为2 h, 单次运行模型的时间小于1 min, 视觉综合评估分数比其他模型整体高出1.24%~2.09%, 元素特征的匹配程度结果的相对误差大多小于0.08, 表明所提方法在设计效率和需求匹配度方面的优势; 针对不同用户集群, 该方法仅需少量样本, 即可实现从用户特征信息到用户需求文本再到产品造型设计方案的一站式生成.

     

    Abstract: To accurately grasp the users’ visual perception patterns and modeling preferences for products, and intelligent generation of product modeling design schemes that meet users’ emotional preferences, a design method that combines visual perception data with product modeling generation using a stable diffusion model is proposed. Firstly, users are segmented into clusters and intelligently identified based on their respective clusters using K-modes and the KNN algorithm. Then, according to the visual perception mode of design features, eye tracking technology is used to obtain users’ visual perception data of elemental features and semantic features, and the elemental features and semantic features micro datasets for different user clusters are constructed respectively. Finally, based on the multi-network combination architecture of DreamBooth and LoRA, the stable diffusion model is fine-tuned and trained to establish a composite model of product modeling generation with elemental feature generation first and semantic feature generation later. The model training time is 2 hours, and the single run time is less than 1 min. Meanwhile, the comprehensive visual evaluation is 1.24%~2.09% higher than the other models, and the matching degree of elemental features is mostly evaluated with a relative error of 0.08, which shows the advantages of the proposed method in design efficiency and demand matching degree. It can realize one-stop generation from user feature information to user requirement text to product styling design scheme with only a few samples for different user clusters.

     

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