I want to smooth motion of head by getting moving average of last 3 rvec and tvec vectors. But suddenly comes unexpected values of rvec,all values became negative :
3.15671 0.096776 0.32789 3.18738 0.0878376 0.336211 3.15005 0.0896022 0.337018 -3.06086 -0.0907339 -0.339971 -3.07529 -0.0846121 -0.343904 -3.08211 -0.0861078 -0.349439 ..... -3.03756 0.257243 -0.510188 -3.00875 0.241385 -0.505155 -3.0265 0.255717 -0.504729 3.13553 -0.306111 0.507516 3.12246 -0.339343 0.507442 3.11797 -0.409513 0.505041