Video Frame Stacking for Motor Seizure Detection and Classification

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Solution Overview

Problem

Existing methods fail to effectively monitor and classify seizures, particularly nocturnal seizures, which are often unnoticed, leading to the need for improved patient surveillance systems.

Innovation Solution

A system utilizing video, audio, and depth data analysis with pre-trained neural networks to detect anomalies and classify seizure types, including video frame stacking, feature extraction, and classification using deep neural networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional seizure monitoring methods (patient diaries, manual surveillance) are used, then implementation simplicity is maintained, but detection reliability and completeness deteriorate due to missed seizures especially during nighttime

Engineering Contradiction:
Improveseizure detection reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces manual surveillance and patient self-reporting with an automated computer vision system using deep neural networks to analyze video data. The system automatically detects seizures by processing video frames through trained neural networks, eliminating the need for continuous human monitoring and improving detection reliability without requiring complex medical equipment

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system creates a digital model (neural network) trained on labeled seizure data that can automatically recognize and classify seizure patterns. This copied knowledge from training data enables the system to reliably detect seizures without direct human intervention, resolving the contradiction between reliability and complexity

Inventive Principle:
Principle #26Copying

2Measurement precision

If multiple sensors and electrodes are used for seizure detection, then measurement precision improves, but ease of operation and patient comfort deteriorate due to inconvenient sensors

Engineering Contradiction:
Improveseizure classification precisionVSAvoidpatient convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent substitutes physical sensors and electrodes with a non-contact video-based monitoring system. The deep neural network analyzes visual patterns in video data to detect and classify seizures, achieving high measurement precision without requiring any physical contact with the patient, thereby dramatically improving ease of operation and patient comfort

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system uses video data as an intermediary medium to capture seizure information without direct physical interaction. The neural network processes this intermediate visual information to infer seizure characteristics, enabling precise measurement while maintaining patient convenience

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If video data analysis with neural networks is implemented, then seizure detection accuracy improves, but use of energy and computational resources increases

Engineering Contradiction:
Improveseizure detection accuracyVSAvoidcomputational energy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary action by pre-training neural networks offline on large datasets before deployment. This advance preparation allows the model to be optimized and stored for efficient inference, reducing real-time computational energy requirements while maintaining high detection accuracy during actual seizure monitoring

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the computational task into distinct stages: video frame extraction, neural network inference, and seizure classification. This segmentation allows for optimized processing at each stage, reducing overall energy consumption while maintaining high measurement precision through specialized processing for each function

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12440124B2Method for detecting and classifying a motor seizure
Publication Date: 2025.10.14 NEURO EVENT LABS OY
  • US12440124B2 patent drawing
  • US12440124B2 patent drawing
  • US12440124B2 patent drawing

AI summary

The invention relates to a method for detecting and classifying a motor seizure. The method comprises receiving video data of a patient; detecting a first anomaly in the video data as anomaly in movement of the patient; determining a video frame stack comprising the first anomaly; classifying the video frame stack using a pre-trained neural network to obtain a first classification; and determining a motor seizure type based on the first classification.