A high-resolution image device that is used to receive images in a variable depth of field environment may include a color image sensor, a panchromatic image sensor, and a measuring device. The method further comprises allocating transmission resources as one or more re-transmission opportunities for re-transmission of the packet of at least two of the automatic repeat request processes such that at least two of the at least two automatic repeat request processes share transmission resource for at least one of the re-transmission opportunities. The device may optionally include at least one additional second inlet port into the second chamber. When reading a page that does not exist in the buffer from the disk, the up-to-date page from the database or from the log volume is read. The skin region images are processed to provide calibrated skin color information, which is compared to a ground truth data set to identify a set of closest known values in the ground truth data set.