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So my question is: given a 3d rotation matrix R=3x3;

and i know that this R is a combination of 2 Rotation matrix in the axis of x and y, how many solution (angles of rotation in x and y) doest it have? im guessing 4... but i wanna be sure....

ty

1st whats the meaning of likelihood, just plain simple. I may have not understood its meaning...

as example: let x~N(0,1);

y=a*x+b; {a,b} constants, making y~N(b,a^2)

z=c*x+h; {c,h} constants

likelihood for y_i is....:

L_i=-0.5 (y_i-mean_y)^2/var(y)-0.5 log(var(y))-0.5log(2*pi)

how can i compare 2 likelihoods, if its possible?

My main goal is to create a threshold to get the same points of x (y(x) and z(x)), from the likelihood of y and z,

the only possible way is to threshold_y=K+0.5log(var(y)) and threshold_z=K+0.5log(var(z))? K=constant...

or its there another way....

sry for my English, and tanks for your time =)

I guys any 1 knows the formula to convert angles to a cube face? ea

(0 0) is face 1

(90 0) face 2

(180 0) face 3

(270 0) face 4

(0 90) face 5

(0 -90) face 6

this points are easy but i know at the edges there is a cut of angle or critical angle doesn't any1 knows how to calculate it? i need it for make a 3D mosaic like google street view =)

ty