Predicting Post-Liposuction Body Shape Using RGB Image-to-Image Translation

• Published in: Applied sciences Vol. 15; no. 9; p. 4787
• Main Authors: Kim, Minji, Byeon, Jiseong, Chang, Jihun, Youm, Sekyoung
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.05.2025
• Subjects: Abdomen; Algorithms; Body fat; Body measurements; Cameras; Deep learning; GAN; image-to-image translation; Lighting; Liposuction; Medical imaging equipment; Optimization; Patients; Pix2Pix; prediction of liposuction outcome; Surgery; Surgical outcomes
• ISSN: 2076-3417; 2076-3417
• DOI: 10.3390/app15094787

The growing interest in weight management has elevated the popularity of liposuction. Individuals deciding whether to undergo liposuction must rely on a doctor’s subjective projections or surgical outcomes for other people to gauge how their own body shape will change. However, such predictions may not be accurate. Although deep learning technology has recently achieved breakthroughs in analyzing medical images and rendering diagnoses, predicting surgical outcomes based on medical images outside clinical settings remains challenging. Hence, this study aimed to develop a method for predicting body shape changes after liposuction using only images of the subject’s own body. To achieve this, we utilize data augmentation based on a conditional continuous Generative Adversarial Network (CcGAN), which generates realistic synthetic data conditioned on continuous variables. Additionally, we modify the loss function of Pix2Pix—a supervised image-to-image translation technique based on Generative Adversarial Networks (GANs)—to enhance prediction quality. Our approach quantitatively and qualitatively demonstrates that accurate, intuitive predictions before liposuction are possible.