iRBSM: A Deep Implicit 3D Breast Shape Model

Weiherer M, von Riedheim A, Brébant V, Egger B, Palm C (2025)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2025

Journal

Informatik aktuell Gesellschaft für Informatik (GI)

Publisher: Springer

Series: Informatik aktuell

City/Town: Cham

Pages Range: 38-43

Conference Proceedings Title: Bildverarbeitung für die Medizin 2025. Proceedings, German Conference on Medical Image Computing, Regensburg March 09-11, 2025

Event location: Regensburg DE

ISBN: 9783658474218

DOI: 10.1007/978-3-658-47422-5_11

Abstract

We present the first deep implicit 3D shape model of the female breast, building upon and improving the recently proposed Regensburg Breast Shape Model (RBSM). Compared to its PCA-based predecessor, our model employs implicit neural representations; hence, it can be trained on raw 3D breast scans and eliminates the need for computationally demanding non-rigid registration, a task that is particularly difficult for feature-less breast shapes. The resulting model, dubbed iRBSM, captures detailed surface geometry including fine structures such as nipples and belly buttons, is highly expressive, and outperforms the RBSM on different surface reconstruction tasks. Finally, leveraging the iRBSM, we present a prototype application to 3D reconstruct breast shapes from just a single image. Model and code publicly available at https://rbsm.re-mic.de/implicit.

Authors with CRIS profile

Maximilian Weiherer Juniorprofessur für Cognitive Computer Vision (Stiftungsprofessur) Bernhard Egger Juniorprofessur für Cognitive Computer Vision (Stiftungsprofessur)

Involved external institutions

Universitätsklinikum Regensburg DE Germany (DE) Ostbayerische Technische Hochschule Regensburg (OTH) DE Germany (DE)

How to cite

APA:

Weiherer, M., von Riedheim, A., Brébant, V., Egger, B., & Palm, C. (2025). iRBSM: A Deep Implicit 3D Breast Shape Model. In Christoph Palm, Katharina Breininger, Thomas Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Thomas M. Tolxdorff (Eds.), Bildverarbeitung für die Medizin 2025. Proceedings, German Conference on Medical Image Computing, Regensburg March 09-11, 2025 (pp. 38-43). Regensburg, DE: Cham: Springer.

MLA:

Weiherer, Maximilian, et al. "iRBSM: A Deep Implicit 3D Breast Shape Model." Proceedings of the German Conference on Medical Image Computing, 2025, Regensburg Ed. Christoph Palm, Katharina Breininger, Thomas Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Thomas M. Tolxdorff, Cham: Springer, 2025. 38-43.

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