iFRAME (inhomogeneous Filters Random Field And Maximum Entropy)

Experiment 4.2: Clustering by Fitting A Mixture of Sparse FRAME Models (hard EM + DoG version)

Clustering by EM-like algorithm by fitting Mixture of Sparse FRAME Models. The clustering is model-based, which does NOT require or rely on pairwise similarity meausre.
Three characteristics: (1) Multiple scales of Gabor features for good representation; (2) Multiple chains of HMC sampling for accurate parameters estimation, (3) Multiple CPUs of parallel computating for fast computation.

Code and dataset

Contents
Case 1: Cows
Case 2: Dogs
Case 3: Horses and zebras
Case 4: leopards and tigers
Case 5: Butterflies, dragonflies, and bugs

Case 1: Cows

Sparse FRAME templates



Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Projected synthesized templates by multiple chains

Case 2: Dogs (dalmatians and weimaraners)

Sparse FRAME templates




Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

 (i) original (ii) templates (iii) reconstruced (iv) residual

Projected synthesized templates by multiple chains

Case 3: Horses and zebras

Sparse FRAME templates




Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

 (i) original (ii) templates (iii) reconstruced (iv) residual

Projected synthesized templates by multiple chains

Case 4: leopards & tigers

Sparse FRAME templates




Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

 

 

 

 

 

 

 

 

 

 

Projected synthesized templates by multiple chains

Case 5: Butterflies, dragonflies, and bugs

Sparse FRAME templates





Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Gabor template

(i) original (ii) templates (iii) reconstruced (iv) residual

Projected synthesized templates by multiple chains