How to Perform Line Segmentation for Handwritten Math
whizzkidme · reddit · 2026-07-17
The author is working on handwritten math recognition and wants to solve the problem of "how to correctly split an entire mathematical expression into independent lines," rather than just doing standard text baseline detection.
The core difficulty lies in the complex structure of mathematical layouts:
- Numerators and denominators of fractions are easily misinterpreted as separate lines
- Integral limits might be treated as independent lines
- Consecutive integrals or tall expressions might be incorrectly merged
- Matrices, summations, and nested fractions further complicate segmentation
They are primarily looking for:
- Techniques to cluster all symbols within the same mathematical expression together
- Solutions designed for online handwriting (stylus trajectories)
- Also open to offline image methods
- Preferably paper, algorithm, or open-source implementation recommendations
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