ZoneMapAlt: An alternative to the ZoneMap metric for zone segmentation and classification
Abstract
This paper proposes a new evaluation metric based on the existing ZoneMap metric. The ZoneMap method, designed to perform a zone segmentation evaluation and classification, is considered in the context of OCR evaluation. Its limits are spotted, described and a new algorithm, ZoneMapAlt (ZoneMap Alternative) is proposed to solve the identified limits while keeping the properties of the original one. To validate the new metric, experiments have been made on a dataset of scientific articles. Results demonstrate that the ZoneMapAlt algorithm provides greater details on seg-mentation errors and is able to detect critical segmentation errors.
Domains
Signal and Image processing
Origin : Files produced by the author(s)
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