Pubblicazioni

Implicit Shape and Appearance Priors for Few-Shot Full Head Reconstruction

This paper presents a novel approach to reconstructing full 3D head models from just a few images, addressing the common challenge of needing many input views and extensive computation. By incorporating shape and appearance priors—pre-learned information about the typical structure and visual features of human heads—the method achieves faster convergence, improved accuracy, and state-of-the-art reconstruction results.
Pol Caselles, Institut de Robòtica i Informàtica Industrial, CSIC-UPC, Barcelona, Spain, Crisalix SA, Switzerland; Eduard Ramon, Crisalix SA, Switzerland; Jaime García
Crisalix SA, Switzerland; Gil Triginer, Crisalix SA, Switzerland; Francesc Moreno-Noguer, Institut de Robòtica i Informàtica Industrial, CSIC-UPC, Barcelona, Spain (February)

Three-Dimensional Facial Evaluation of Facial Scars Management Using Pulsed Dye Laser: A Randomized Clinical Trial

This study evaluates the efficacy of pulsed dye laser (PDL) therapy using the Candela Vbeam system for facial scar management, employing Crisalix 3D imaging to objectively assess scar parameters and monitor post-operative edema.
Islam Kassem, DDS, MSc, FDS RCSA, Department of Maxillofacial Surgery, Alamien Hospital, Egypt; Amr Youssef, MD, Department of Dermatology, sparkle, Egypt; Alshima Ahmed, PhD, Department of maxillofacial surgery Fayoum University, Egypt.

Three-Dimensional Printing in Breast Reconstruction: Current and Promising Applications

This study, carried out by Horacio F. Mayer *, Alejandro Coloccini, and José F. Viñas, and published in the Journal of Clinical Medicine, digs into the current and promising future applications of three-dimensional printing in Breast Reconstruction.
Making use of the latest technologies available, they have analyzed the great versatility that can be offered by 3D printed scaffolds. Hand in hand with this technology, they have used Crisalix 3D images, which have been of great relevance in preoperative planning and postoperative applications.
Mayer, H.F.; Coloccini, A.; Viñas, J.F. (Journal of Clinical Medicine, June 2024)

Three-dimensional Simulation on Patient-reported Outcomes Following Oncoplastic and Reconstructive Surgery of the Breast

In this prospective study, we randomized 69 breast cancer patients undergoing breast-conserving surgery with oncoplastic or immediate-based reconstruction after mastectomy to receive 3D simulation of postoperative results (intervention group) or 3D imaging without simulation. The intervention group was more satisfied with preoperative information provided.
Preoperative 3D simulation significantly improved patient satisfaction with information and did not decrease postoperative satisfaction with results.
Kurola et al. (PRS Global Open, May 2024 )

InstantAvatar: Efficient 3D Head Reconstruction via Surface Rendering

Recent advances in full-head reconstruction have been obtained by optimizing a neural field through differentiable surface or volume rendering to represent a single scene. While these techniques achieve an unprecedented accuracy, they take several minutes, or even hours, due to the expensive optimization process required. In this work, we introduce InstantAvatar, a method that recovers full-head avatars from few images (down to just one) in a few seconds on commodity hardware.
Antonio Canela, Pol Caselles, Ibrar Malik, Eduard Ramon, Jaime García, Jordi Sànchez-Riera, Gil Triginer, Francesc Moreno-Noguer (International Conference on 3D Vision, March 2024)

Case report on facial hidradenoma papilliferum, rare aggressive benign tumor

A rare case of hidradenoma papilliferum was diagnosed in a 70-year-old male patient presenting with a subcutaneous nodule on his nasolabial fold. Excisional biopsy was performed with sufficient safety margins to prevent residual growth, followed by reconstruction planning guided by Crisalix 3D images technology.

Islam Kassem*; Yasser El Dawiak; Mai Badrah; Peter Hani
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt. (Journal of Clinical and Medical Images, Case Reports - February 2024)

Role of 3D Simulation in breast augmentation

Patient satisfaction is of paramount importance in breast augmentation surgery. One of the most important determinants of the post-operative outcome is the implant volume.[...] With the advent of three-dimensional (3D) simulations, this technique is increasingly being employed in pre-operative counseling sessions to aid the patient in choosing the right implant size for herself. We wished to study the usefulness of 3D simulation as a clinical aid in pre-operative counseling of breast augmentation patients.

Rajat Gupta, Deepti Gupta​ (Indian Journal of Medical Sciences, August 2023)

SIRA: Relightable Avatars from a Single Image

This paper introduces SIRA, a method that reconstructs human head avatars from a single image with high-fidelity geometry and factorized lights and surface materials. Experiments show that SIRA obtains state-of-the-art results in 3D head reconstruction while at the same time, it successfully disentangles the global illumination, and the diffuse and specular albedos.

Pol Caselles, Eduard Ramon, Jaime Garcia, Xavier Giro-i-Nieto, Francesc Moreno Noguer, Gil Triginer (Winter Conference on Applications of Computer Vision, Sept. 2022)

Facial Anthropometry and Analysis in Egyptian Women

The purpose of this study was to establish facial soft tissue norms for the Egyptian female population between the ages of 18 and 50, as well as Several age-related changes in facial measurements. Facial measurements were obtained by both direct (caliper-based) and indirect (3D Crisalix software) anthropometric analysis.

El Minawi, Hisham MD*; El Saloussy, Yasmeen MSc, MRCSEd†; Sabry, Mohamed MSc*; Wahdan, Wessam MD*; El Sharkawy, Omar MD*, Plastic and Reconstructive Surgery - Global Open. (PRS - May, 2022).