Visual Pattern Detectibility - Channels • Detectibility is assessed on multi-channel measures of mismatch between target & its local background • Channels are vision-processed images –   Computed from projection of 3D surfaces–to–2D pixels for a viewer • Channel structure is motivated by knowledge of the “early” components of the early (pre-attentive) human visual system –   Color Opponency (combinations of Cone fundamentals) –   Temporal (Motion) Filtering • Measure for temporal bandpass (motion) channels is summed absolute excitation • Measures for temporal lowpass (static) channels: –   Mean mismatch- |MeanTgt² - MeanBkg²| –   Variance mismatch - |VarTgt - VarBkg| –   Texture mismatch, gauged by Gaussian Markov random field (GMRF) metric Next Page To PMO Page