Objective Dysgraphia Detection with Multi-Branch Deep Learning

Explore a multi-branch deep learning framework for objective dysgraphia detection using online handwriting data and fusion of kinematic and image features.

martes, 28 de julio de 2026 • 3 min read • Q2BSTUDIO Team

Análisis de escritura online para diagnosticar disgrafía

Dysgraphia is a learning disorder that affects the quality, fluency and legibility of handwriting, negatively impacting the academic performance of many schoolchildren. Traditional diagnosis relies on subjective therapist evaluations, a time-consuming process prone to variability. However, advances in artificial intelligence and deep learning are revolutionizing this field by enabling objective and early detection. In this article we analyze an innovative multi-branch deep learning approach for dysgraphia detection, and how companies like Q2BSTUDIO can help implement similar solutions in clinical and educational settings through the development of custom software.

The proposed method uses handwriting data captured via digitizing tablets, obtaining temporal signals that reflect pen movements. These data are processed by two complementary branches: the first extracts both traditional and embedding-based kinematic features from raw signals; the second transforms those signals into image representations using continuous wavelet transform (CWT) and Gramian angular fields (GAF). Fusing all these features allows the model to leverage the strengths of each representation, achieving superior accuracy in dysgraphia classification. Experiments on the public DiaGraMo dataset show that the combination of GAF, MOMENT and handcrafted kinematic features outperforms any individual representation and other fusion schemes.

From a technical perspective, this approach exemplifies how multimodal artificial intelligence can be integrated into assisted diagnosis systems. To bring this technology into practice, a robust software ecosystem is required, including secure data capture, real-time processing and result visualization. This is where Q2BSTUDIO brings its expertise in developing AI and building cloud platforms on AWS or Azure, capable of scaling on demand. Moreover, cybersecurity is a fundamental pillar: patient data are sensitive and must be protected with best practices in encryption and access control. Q2BSTUDIO's cybersecurity services ensure that solutions comply with regulations such as GDPR and HIPAA.

Integrating Business Intelligence tools, such as Power BI, allows clinicians and educators to analyze trends and generate custom reports from assessment results. For example, an interactive dashboard could show a child's handwriting evolution over time, correlating model scores with therapeutic interventions. Likewise, AI agents can automate repetitive tasks like sensor calibration or model updating with new data, improving system efficiency.

Beyond dysgraphia, this multi-branch architecture is adaptable to other motor or cognitive disorders affecting handwriting, such as dyspraxia or attention deficit disorder. Companies wishing to implement similar solutions in digital health can count on Q2BSTUDIO to design and deploy custom software, integrating the latest technologies in AI, cloud and cybersecurity. The combination of these disciplines accelerates time-to-market and ensures a reliable and secure user experience.

In conclusion, objective dysgraphia detection using multi-branch deep learning represents a significant advance in early diagnosis of learning disorders. The fusion of kinematic signals and image representations shows that data source complementarity significantly improves accuracy. To turn this innovation into a practical tool, it is essential to have technology partners like Q2BSTUDIO, which offer comprehensive services in custom software development, artificial intelligence, cloud AWS/Azure, cybersecurity and BI with Power BI. Thus, educational and clinical centers can benefit from technology that not only detects but also accompanies the personalized intervention process.

A BREAK?

Play for a moment before you go

OUR SERVICES

How we can help you

Do you have a project in mind?

Tell us your vision and we'll turn it into a software solution. Whatever the scope, we make your idea real.