Enhancing the aesthetic appeal of AI-generated physical product designs through LoRA fine-tuning with human feedback

Conference Paper (2025)
Author(s)

Dinuo Liao (Student TU Delft)

Derek Lomas (TU Delft - Human Technology Relations)

Cehao Yu (The Hong Kong Polytechnic University)

Research Group
Human Technology Relations
DOI related publication
https://doi.org/10.1117/12.3066095
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Publication Year
2025
Language
English
Research Group
Human Technology Relations
Bibliographical Note
Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.@en
ISBN (electronic)
9781510692114
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Abstract

This study explores how Low-Rank Adaptation (LoRA) fine-tuning, guided by human aesthetic evaluations, can enhance the outputs of generative AI models in tangible product design, using lamp design as a case study. By integrating human feedback into the AI model, we aim to improve both the desirability and aesthetic appeal of the generated designs. Comprehensive experiments were conducted, starting with prompt optimization techniques and focusing on LoRA fine-tuning of the Stable Diffusion model. Additionally, methods to convert AI-generated designs into tangible products through 3D realization using 3D printing technologies were investigated. The results indicate that LoRA fine-tuning effectively aligns AI-generated designs with human aesthetic preferences, leading to significant improvements in desirability and aesthetic appeal scores. These findings highlight the potential of human-AI collaboration in tangible product design and provide valuable insights into integrating human feedback into AI design processes.

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