Features extracted for the in situ expression patterns of two fly genes at embryonic developmental stage 7–8. The embryos were segmented from the background using a series of image processing operations (see Data). The gene expression patterns were extracted using a global Gaussian mixture-model . The GMM-blobs were then generated using the 2D local GMM . Different colors in a blob-set indicate different spatial blobs. The eigen-profiles were produced using the eigen-feature decomposition . The wavelet-profiles were produced using the level-2 2D Haar wavelet decomposition .
Peng et al. BMC Cell Biology 2007 8(Suppl 1):S7 doi:10.1186/1471-2121-8-S1-S7