. . . . . "978-4-9906441-0-9" . "Tsukuba" . "P(GBP103/12/G084)" . "5"^^ . . "Kalviainen, H." . "130426" . . "A method for the detection of bubble-like transparent objects with multiple interfaces in a liquid is proposed. Depending on the lighting conditions, bubble appearance varies significantly, including contrast reversal and multiple inter-reflections. We formulate the bubble detection problem as the detection of Concentric Circular Arrangements (CCA). The CCAs are recovered in a hypothesize-optimizeverify framework. The hypothesis generation proceeds by sampling from the components of the non-maximum suppressed responses of oriented ridge filters followed by CCA parameter estimation. Parameter optimization is carried out by minimizing a novel cost-function by the simplex method. The proposed method for bubble detection showed good performance in an industrial application requiring estimation of gas volume in pulp suspension, achieving 1.5% mean absolute relative error." . "21230" . . "Matas, Ji\u0159\u00ED" . "Eerola, T." . "Lensu, L." . "[0BF032FCA6E8]" . . "1"^^ . . "Strokina, N." . "Detection of Bubbles As Concentric Circular Arrangements" . . "RIV/68407700:21230/12:00200578!RIV13-GA0-21230___" . . "RIV/68407700:21230/12:00200578" . "Detection of Bubbles As Concentric Circular Arrangements" . . "IEEE" . "A method for the detection of bubble-like transparent objects with multiple interfaces in a liquid is proposed. Depending on the lighting conditions, bubble appearance varies significantly, including contrast reversal and multiple inter-reflections. We formulate the bubble detection problem as the detection of Concentric Circular Arrangements (CCA). The CCAs are recovered in a hypothesize-optimizeverify framework. The hypothesis generation proceeds by sampling from the components of the non-maximum suppressed responses of oriented ridge filters followed by CCA parameter estimation. Parameter optimization is carried out by minimizing a novel cost-function by the simplex method. The proposed method for bubble detection showed good performance in an industrial application requiring estimation of gas volume in pulp suspension, achieving 1.5% mean absolute relative error."@en . . . "2012-11-11+01:00"^^ . "Detection of Bubbles As Concentric Circular Arrangements"@en . "5"^^ . . "Detection of Bubbles As Concentric Circular Arrangements"@en . "ICPR 2012: Proceedings of 21st International Conference on Pattern Recognition" . . "bubble detection; circle arrangement; detection"@en . "New York" .