BRISK and FREAK descriptors in MATLAB

Question

I'm using MATLAB 2014a for extracting BRISK and FREAK descriptors. I couldn't find any option to reduce the bit string size to 128 or 256, they both generated as 512 bits. I think FREAK does not allow this by algorithm but BRISK should allow. Does anyone know if I can reduce the dimension of BRISK descriptor? If yes how can I?

Thanks

Answer 1

Unfortunately the current MATLAB implementation only computes the 512 bit BRISK descriptor.