Title :
Restrained neighborhood analog median filters
Author :
Díaz-Sánchez, Alejandro ; Ramírez-Angulo, Jaime
Author_Institution :
Nat. Inst. for Astrophys., Opt. & Electron., Puebla, Mexico
Abstract :
The implementation of highly parallel median filters for image processing using a reduced interconnection complexity is presented. The performance of the noise removal process is analyzed, and the results are compared with the previously reported. Two analog median filters were used with this technique: a median filter that is based in a transconductance comparator, and a subthreshold operation median filter. Simulation results of a 78 × 89 image corrupted, with 15% salt and pepper noise, are shown. All the simulations were made using BSIM3 level 49 model and 1.2 μm MOSIS parameters.
Keywords :
active filters; image denoising; median filters; 1.2 micron; BSIM3 level 49 simulation; interconnection complexity; noise removal; parallel image processing; restrained neighborhood analog median filter; salt and pepper noise; subthreshold operation; transconductance comparator; Astrophysics; Energy consumption; Filtering; Frequency; Image processing; Integrated circuit interconnections; MOSFETs; Optical filters; Parallel processing; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1186833
