TY - JOUR AU - Marçal Rusiñol AU - Lluis Pere de las Heras AU - Oriol Ramos Terrades PY - 2014// TI - Flowchart Recognition for Non-Textual Information Retrieval in Patent Search T2 - IR JO - Information Retrieval SP - 545 EP - 562 VL - 17 IS - 5-6 KW - Flowchart recognition KW - Patent documents KW - Text/graphics separation KW - Raster-to-vector conversion KW - Symbol recognition N2 - Relatively little research has been done on the topic of patent image retrieval and in general in most of the approaches the retrieval is performed in terms of a similarity measure between the query image and the images in the corpus. However, systems aimed at overcoming the semantic gap between the visual description of patent images and their conveyed concepts would be very helpful for patent professionals. In this paper we present a flowchart recognition method aimed at achieving a structured representation of flowchart images that can be further queried semantically. The proposed method was submitted to the CLEF-IP 2012 flowchart recognition task. We report the obtained results on this dataset. SN - 1386-4564 L1 - http://refbase.cvc.uab.es/files/RHR2013.pdf UR - http://dx.doi.org/10.1007/s10791-013-9234-3 N1 - DAG; 600.077 ID - Marçal Rusiñol2014 ER -