Only use DenseCRF to refine point cloud

[GuoliangShiIntel]

Thanks for you nice work. I just want to use DenseCRF to refine my point cloud segmentation methed. The input data of your DenseCRF is "*.pionts" and "probo.txt". Could you give me a sample of this file types or how to trans ".txt" to those types. I try to change input data interface and compile sucessfully, but the "Unary parameters" is None. In the "dense_learning" phase, i input one test data. The output is:

$ ./dense_learning C:/Users/426-4/Desktop/densecrf/build/examples/filelist.txt 2
Load data: C:/Users/426-4/Desktop/test.txt
Optimize ...
Phase : 0
Iteration 1:
  fx = -0.997662, xnorm = 2.162278, gnorm = 0.002162, step = 316.227762

Iteration 2:
  fx = -1.000000, xnorm = 0.000001, gnorm = 0.000000, step = 1.000000

L-BFGS optimization terminated with status code = 2
Phase : 1
Iteration 1:
  fx = -0.998000, xnorm = 2.000000, gnorm = 0.002000, step = 333.333318

Iteration 2:
  fx = -1.000000, xnorm = 0.000000, gnorm = 0.000000, step = 1.000000

L-BFGS optimization terminated with status code = 2
Unary parameters:
Pairwise parameters: -5.58529e-14 4.55398e-16
Kernel parameters: -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08 -5.82076e-08

Looking forward to your reply.