Hierarchical stack filtering: a bitplane-based algorithm for massively parallel processors
Visualitza/Obre
Cita com:
hdl:2117/113943
Tipus de documentArticle
Data publicació2019-10
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
With the development of novel parallel architectures for image processing, the implementation of well-known image operators needs to be reformulated to take advantage of the so-called massive parallelism. In this work, we propose a general algorithm that implements a large class of nonlinear filters, called stack filters, with a 2D-array processor. The proposed method consists of decomposing an image into bitplanes with the bitwise decomposition and then processes every bitplane hierarchically. The filtered image is reconstructed by simply stacking the filtered bitplanes according to their order of significance. Owing to its hierarchical structure, our algorithm allows us to trade-off between image quality and processing time, and to significantly reduce the computation time of low-entropy images. Also, experimental tests show that the processing time of our method is substantially lower than that of classical methods when using large structuring elements. All these features are of interest to a variety of real-time applications based on morphological operations such as video segmentation and video enhancement.
CitacióFrías-Velazquez, A., Morros, J.R., Garcia, M., Philips, W. Hierarchical stack filtering: a bitplane-based algorithm for massively parallel processors. "Journal of real-time image processing", Octubre 2019, vol. 16, núm. 5, p 1717–1730
ISSN1861-8200
Versió de l'editorhttps://link.springer.com/article/10.1007%2Fs11554-017-0681-8
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
hierarchical-stack-filtering+(1).pdf | 929,1Kb | Visualitza/Obre |