CV

Basics

Name Alexandre Symeonidis-Herzig
Label PhD Researcher in Computer Vision
Email a.symeonidisherzig@gmail.com
Url https://github.com/ash-fortyfive

Work

  • 2026.03 - 2026.09

    Remote, GB

    Computer Vision Research Engineer: 3DGS & Diffusion Avatars
    Signapse
    • Trained mesh-anchored Gaussian Splatting avatars that render signing in real time from any viewpoint
    • Worked on a video diffusion pipeline that refines 3DGS renders into photorealistic avatar video
    • Fitted a merged SOMA body and FLAME head model to multi-view captures of a full signer dataset
    • Designed a portable multi-view capture rig that recorded 10,000 signs on site in 4 months
  • 2023.09 - present

    Guildford, GB

    PhD Researcher
    University of Surrey, CVSSP
    • Leading multi-view capture and large-scale 3DMM fitting for the lab's sign language datasets
    • Multi-node training on NVIDIA and AMD clusters; wrote two funded Isambard-AI proposals (20,000 GPU-hours)
    • Contributing to SLTK, the lab's open-source sign language toolkit

Education

  • 2023.09 - 2028

    Guildford, GB

    PhD
    University of Surrey
    Computer Vision
    • Expected graduation: early 2028
    • Thesis (working title): Preserving Face, Body, and Hand Information in Sign Language Production
    • Supervised by Prof. Richard Bowden and Dr. Özge Mercanoğlu Sincan
  • 2019.09 - 2023.06

    Guildford, GB

    BEng (Hons), First Class
    University of Surrey
    Electronic Engineering
    • Thesis: real-time photorealistic avatar driven from monocular video (MediaPipe, MetaHumans)

Publications

Skills

3D Vision
Gaussian Splatting
differentiable rendering
3DMM fitting (SOMA / SMPL-X / FLAME)
Generative
Video diffusion
flow matching
FSQ and VQ-VAE tokenisation
autoregressive transformers
LLM fine-tuning
Engineering
Python
C++
PyTorch (multi-node DDP)
CUDA and ROCm
Diffusers
vLLM
SLURM
Apptainer
Docker
W&B

Languages

English
Fluent
German
Proficient
Greek
Proficient
Dutch
Proficient
BSL
Level 1

Interests

Research
Computer Vision
3D Graphics
Human Motion Synthesis
Sign Language Translation
Hobbies
Game Development
Board Games
Climbing
Weightlifting