Marko Mihajlovic

I’m a researcher at Apple’s Research team led by Vladlen Koltun. Before joining Apple, I completed my PhD in Computer Science at ETH Zurich with Siyu Tang and Marc Pollefeys and spent over a year at Meta in Zurich and Pittsburgh, working on immersive digital representations. My research focuses on developing systems that reconstruct the world’s structure and dynamics from visual inputs to enable precise digital replicas, with the broader goal of enhancing machines’ ability to perceive and interact with their surroundings using minimal inputs.

Marko Mihajlovic
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Marko Mihajlovic

Publications

Multi-View 3D Point Tracking

Frano Rajič, Haofei Xu, Marko Mihajlovic, Siyuan Li, Irem Demir, Emircan Gündoğdu, Lei Ke, Sergey Prokudin, Marc Pollefeys, Siyu Tang

ICCV (Oral), 2025

project page / arXiv / code / demo / video

MVTracker is the first data-driven multi-view 3D point tracker, designed to track arbitrary points in dynamic scenes using multiple camera views. Unlike monocular trackers, which struggle with depth ambiguities and occlusion, our feed-forward model directly predicts 3D correspondences using a practical number of cameras, enabling robust and accurate online tracking.

VolumetricSMPL

VolumetricSMPL: A Neural Volumetric Body Model for Efficient Interactions, Contacts, and Collisions

Marko Mihajlovic, Siwei Zhang, Gen Li, Kaifeng Zhao, Lea Müller, Siyu Tang

ICCV (Highlight), 2025

project page / arXiv / code / PyPI / video

VolumetricSMPL is a lightweight, plug-and-play extension for SMPL(-X) models that adds volumetric functionality via Signed Distance Fields (SDFs). With minimal integration—just a single line of code—users gain access to fast and differentiable SDF queries, collision detection, and self-intersection resolution.

Spline Deformation Field

Spline Deformation Field

Mingyang Song, Yang Zhang, Marko Mihajlovic, Siyu Tang, Markus Gross, Tunc Aydin

SIGGRAPH, 2025

project page / arXiv

A spline-based trajectory representation that enables efficient analytical derivation of velocities, preserving spatial coherence and accelerations while mitigating temporal fluctuations. Our method demonstrates superior performance in temporal interpolation for fitting continuous fields with sparse inputs.

SplatFormer

SplatFormer: Point Transformer for Robust 3D Gaussian Splatting

Yutong Chen, Marko Mihajlovic, Xiyi Chen, Yiming Wang, Sergey Prokudin, Siyu Tang

ICLR (spotlight), 2025

project page / arXiv / code

SplatFormer is a data-driven 3D transformer for refining 3D Gaussian splats to improve quality of novel views from extreme camera viewpoints.

FreSh

FreSh: Frequency Shifting for Accelerated Neural Representation Learning

Adam Kania, Marko Mihajlovic, Sergey Prokudin, Jacek Tabor, Przemysław Spurek

ICLR, 2025

project page / arXiv / code / colab

FreSh aligns the frequencies of an implicit neural representation with its target signal to speed up the convergence.

RISE-SDF

RISE-SDF: A Relightable Information-Shared Signed Distance Field for Glossy Object Inverse Rendering

Deheng Zhang*, Jingyu Wang*, Shaofei Wang, Marko Mihajlovic, Sergey Prokudin, Hendrik P.A. Lensch, Siyu Tang

3DV, 2025

project page / arXiv / code

RISE-SDF reconstructs the geometry and material of glossy objects while achieving high-quality relighting.

SplatFields

SplatFields: Neural Gaussian Splats for Sparse 3D and 4D Reconstruction

Marko Mihajlovic, Sergey Prokudin, Siyu Tang, Robert Maier, Federica Bogo, Tony Tung, Edmond Boyer

ECCV, 2024

project page / arXiv / code

SplatFields regularizes 3D gaussian splats for sparse 3D and 4D reconstruction.

Morphable Diffusion

Morphable Diffusion: 3D-Consistent Diffusion for Single-image Avatar Creation

Xiyi Chen, Marko Mihajlovic, Shaofei Wang, Sergey Prokudin, Siyu Tang

CVPR, 2024

project page / arXiv / code

Morphable diffusion enables consistent controllable novel view synthesis of humans from a single image.

3DGS-Avatar

3DGS-Avatar: Animatable Avatars via Deformable 3D Gaussian Splatting

Zhiyin Qian, Shaofei Wang, Marko Mihajlovic, Andreas Geiger, Siyu Tang

CVPR, 2024

project page / arXiv / code

Given a monocular video, 3DGS-Avatar learns a clothed human avatars with short training time and interactive rendering frame rate.

DOMA

Inferring Dynamics from Point Trajectories

Yan Zhang, Sergey Prokudin, Marko Mihajlovic, Qianli Ma, Siyu Tang

CVPR, 2024

project page / arXiv / code / video

How to infer scene dynamics from sparse point trajectory observations? We show a simple yet effective solution using a spatiotemporal MLP with carefully designed regularizations. No need for scene-specific priors.

ResFields

ResFields: Residual Neural Fields for Spatiotemporal Signals

Marko Mihajlovic, Sergey Prokudin, Marc Pollefeys, Siyu Tang

ICLR (spotlight), 2024

project page / arXiv / code / colab / openreview

ResField layers incorporates time-dependent weights into MLPs to effectively represent complex temporal signals.

KeypointNeRF

KeypointNeRF: Generalizing Image-based Volumetric Avatars using Relative Spatial Encoding of Keypoints

Marko Mihajlovic, Aayush Bansal, Michael Zollhoefer, Siyu Tang, Shunsuke Saito

ECCV, 2022

project page / arXiv / code / video

KeypointNeRF is a generalizable neural radiance field for virtual avatars. Given as input 2-3 images, KeypointNeRF generates volumetric radiance representation that can be rendered from novel views.

COAP

COAP: Compositional Articulated Occupancy of People

Marko Mihajlovic, Shunsuke Saito, Aayush Bansal, Michael Zollhoefer, Siyu Tang

CVPR, 2022

project page / arXiv / code / video

COAP is a novel neural implicit representation for articulated human bodies that provides an efficient mechanism for modeling self-contact and interactions with the environment.

MetaAvatar

MetaAvatar: Learning Animatable Clothed Human Models from Few Depth Images

Shaofei Wang, Marko Mihajlovic, Qianli Ma, Andreas Geiger, Siyu Tang

NeurIPS, 2021

project page / arXiv / code / video

Generalizable and controllable neural signed distance fields (SDFs) that represent clothed humans from monocular depth observations.

LEAP

LEAP: Learning Articulated Occupancy of People

Marko Mihajlovic, Yan Zhang, Michael J. Black, Siyu Tang

CVPR, 2021

project page / arXiv / code / video

LEAP is a neural network architecture for representing volumetric animatable human bodies. It follows traditional human body modeling techniques and leverages a statistical human prior to generalize to unseen humans.

DeepSurfels

DeepSurfels: Learning Online Appearance Fusion

Marko Mihajlovic, Silvan Weder, Marc Pollefeys, Martin R. Oswald

CVPR, 2021

project page / arXiv / code / video

DeepSurfels is a novel 3D representation for geometry and appearance information that combines planar surface primitives with voxel grid representation for improved scalability and rendering quality.