Lightweight CNN and Causal GNN for scene understanding

  • New computing paradigms, including quantum,
  • phD
  • Grenoble
  • Level 7
  • 2026-09-01
  • MESQUIDA Thomas (DRT/DSCIN/LSTA)
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Scene understanding is a major challenge in computer vision, with recent approaches dominated by transformers (ViT, LLM, MLLM), which offer high performance but at a significant computational cost. This thesis proposes an innovative alternative combining lightweight convolutional neural networks (Lightweight CNN) and causal graph neural networks (Causal GNN) for efficient spatio-temporal analysis while optimizing computational resources. Lightweight CNNs enable high-performance extraction of visual features, while causal GNNs model dynamic relationships between objects in a scene graph, addressing challenges in object detection and relationship prediction in complex environments. Unlike current transformer-based models, this approach aims to reduce computational complexity while maintaining competitive accuracy, with potential applications in embedded vision and real-time systems.

Masterapos;s degree in Computer Science. Strong knowledge in neural networks and algorithms. Optional knowledge in embedded programming.

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