mainly based accuracy these color-b

mainly
based
accuracy
these color-based algorithms is relatively higher, except when luminance changes immediately. However, this luminance problem has been a long term challenging of computer vision researches.
Many algorithms have been proposed to deal with this issue over times, such as an adaptive learning method. Nevertheless, for the adaptive learning algorithm, it is difficult to reinitialize of the tracking system to recover whenever it fails very quickly and suddenly. This is since the color probability used in the adaptive learning method in each frame typically is considered from the previous frames continuously.