TemporalDoRA: Temporal PEFT for Robust Surgical Video Question Answering

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Talent Scout

L

Luca Carlini

Politecnico di Milano, Italy

C

Chiara Lena

Politecnico di Milano, Italy

C

Cesare Hassan

IRCCS Humanitas Research Hospital, Italy

D

Danail Stoyanov

University College London, UK

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Founder's Pitch

"Leveraging TemporalDoRA for robust surgical video QA in clinical settings, overcoming traditional model limitations."

Healthcare AIScore: 8View PDF ↗

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0-10 scale

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7.5

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10

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10

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Why It Matters

Accurate interpretation of surgical videos is crucial for clinicians to make timely decisions during operations. Current models often fail with linguistic variation or transient events. TemporalDoRA enhances model robustness and accuracy by integrating temporal evidence effectively, potentially reducing surgical errors and improving patient outcomes.

Product Angle

This can be productized as a software tool integrated into existing surgical support systems, providing real-time video analysis and Q&A capabilities to improve decision-making during surgeries.

Disruption

This approach could replace traditional manual video monitoring and Q&A procedures during surgeries, moving from text-centric models to more visually and temporally grounded systems.

Product Opportunity

With the healthcare AI market rapidly growing, hospitals and surgical centers are likely to invest in technologies that enhance surgical accuracy and efficiency. Potentially a multi-billion dollar market, particularly valuable in minimally invasive surgery applications.

Use Case Idea

Develop an AI-assisted surgical tool that answers questions in real-time during procedures by analyzing live video feeds, aiding clinicians in making informed decisions quickly and accurately.

Science

TemporalDoRA modifies existing Parameter Efficient Fine-Tuning (PEFT) methods by incorporating temporal Multi-Head Attention within the low-rank adaptation pathway of video models. This allows for frame-level interactions that integrate sparse temporal evidence, enabling models to maintain robustness even with linguistic variability in questions.

Method & Eval

Tested on two datasets, REAL-Colon-VQA and EndoVis18-VQA, TemporalDoRA showed improved performance in handling linguistic variations and beat state-of-the-art models on several benchmarks, demonstrating its effectiveness and robustness in video-based question answering tasks.

Caveats

The system may struggle with novel procedures lacking adequate temporal data or where the visual cues are too sparse or ambiguous to provide reliable answers.

Author Intelligence

Luca Carlini

Politecnico di Milano, Italy
luca.carlini@polimi.it

Chiara Lena

Politecnico di Milano, Italy

Cesare Hassan

IRCCS Humanitas Research Hospital, Italy

Danail Stoyanov

University College London, UK

Elena De Momi

Politecnico di Milano, Italy

Sophia Bano

University College London, UK

Mobarak I. Hoque

University of Manchester, UK
mobarak.hoque@manchester.ac.uk

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