While the hand module is the best choice when hand specific features are required, it is not the only option for incorporating hand tracking into your application. Depending on the requirements of your application, you may wish to use the blob module instead (see Blob Tracking). If your application requires tracking of any object and not necessarily the hand, you may prefer to use the blob module. If you specifically require hand identification and more detailed information such as hand side, joint positions and gesture recognition, you will need to use the hand module.