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ICPR
2002
IEEE
16 years 7 months ago
Comparison of Colour Spaces for Optic Disc Localisation in Retinal Images
The location of the optic disc is of critical importance in retinal image analysis. In this work we improve on an approach introduced in [3] who localised an optic disc region thr...
Alireza Osareh, Majid Mirmehdi, Barry T. Thomas, R...
ICPR
2002
IEEE
16 years 7 months ago
Natural Image Correction by Iterative Projections to Eigenspace Constructed in Normalized Image Space
Image correction is discussed for realizing both effective object recognition and realistiic image-based rendering. Three image normalizations are compared in relation with the li...
Takeshi Shakunaga, Fumihiko Sakaue
ICCD
2006
IEEE
111views Hardware» more  ICCD 2006»
16 years 3 months ago
Implicit Search-Space Aware Cofactor Expansion: A Novel Preimage Computation Technique
Abstract— In this paper, we introduce a novel preimage computation technique that directly computes the circuit cofactors without an explicit search for any satisfiable solution...
Kameshwar Chandrasekar, Michael S. Hsiao
GLOBECOM
2007
IEEE
16 years 24 days ago
Maximum Likelihood Detection and Optimal Code Design for Differential Unitary Space-Time Modulation with Carrier Frequency Offse
Abstract— In this paper, we answer the question that “Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency ...
Tao Cui, Feifei Gao, Arumugam Nallanathan, Chintha...
GLOBECOM
2007
IEEE
16 years 24 days ago
Symbol Error Rate Calculation for Alamouti Space Time Coded OFDM in Direct Conversion Receivers
—In this paper we present an analytical approach to evaluate the M-QAM symbol error rate (SER) of Alamouti space time coded OFDM direct conversion receivers subject to carrier fr...
Marco Krondorf, Gerhard Fettweis