TrackerKCFParams = {
sigma : number ,
lambda : number ,
interp_factor : number ,
output_sigma_factor : number ,
pca_learning_rate : number ,
resize : boolean ,
split_coeff : boolean ,
wrap_kernel : boolean ,
compress_feature : boolean ,
max_patch_size : int ,
compressed_size : int ,
desc_pca : uint ,
desc_npca : uint
}