id: 05977932 dt: a an: 05977932 au: Antúnez, Esther; Marfil, Rebeca; Bandera, Antonio ti: A new perception-based segmentation approach using combinatorial pyramids. so: Maino, Giuseppe (ed.) et al., Image analysis and processing ‒ ICIAP 2011. 16th international conference, Ravenna, Italy, September 14‒16, 2011. Proceedings, Part I. Berlin: Springer (ISBN 978-3-642-24084-3/pbk). Lecture Notes in Computer Science 6978, 327-336 (2011). py: 2011 pu: Berlin: Springer la: EN cc: ut: perceptual grouping; irregular pyramids; combinatorial pyramids ci: li: doi:10.1007/978-3-642-24085-0_34 ab: Summary: This paper presents a bottom-up approach for perceptual segmentation of natural images. The segmentation algorithm consists of two consecutive stages: firstly, the input image is partitioned into a set of blobs of uniform colour (pre-segmentation stage) and then, using a more complex distance which integrates edge and region descriptors, these blobs are hierarchically merged (perceptual grouping). Both stages are addressed using the Combinatorial Pyramid, a hierarchical structure which can correctly encode relationships among image regions at upper levels. Thus, unlike other methods, the topology of the image is preserved. The performance of the proposed approach has been initially evaluated with respect to ground-truth segmentation data using the Berkeley Segmentation Dataset and Benchmark. Although additional descriptors must be added to deal with textured surfaces, experimental results reveal that the proposed perceptual grouping provides satisfactory scores. rv: