minor code clean up in validation

valid.py

@@ -88,7 +88,7 @@ def valid(datacfg, modelcfg, weightfile):
     test_width    = model.test_width
     test_height   = model.test_height
     num_keypoints = model.num_keypoints 
-    num_labels    = num_keypoints * 2 + 3
+    num_labels    = num_keypoints * 2 + 3 # +2 for width, height,  +1 for class label
 
     # Get the parser for the test dataset
     valid_dataset = dataset.listDataset(valid_images, 
@@ -122,7 +122,7 @@ def valid(datacfg, modelcfg, weightfile):
         # Iterate through all batch elements
         for box_pr, target in zip([all_boxes], [target[0]]):
             # For each image, get all the targets (for multiple object pose estimation, there might be more than 1 target per image)
-            truths = target.view(-1, num_keypoints*2+3)
+            truths = target.view(-1, num_labels)
             # Get how many objects are present in the scene
             num_gts    = truths_length(truths)
             # Iterate through each ground-truth object
@@ -134,8 +134,8 @@ def valid(datacfg, modelcfg, weightfile):
                 box_gt.append(truths[k][0])
 
                 # Denormalize the corner predictions 
-                corners2D_gt = np.array(np.reshape(box_gt[:18], [9, 2]), dtype='float32')
-                corners2D_pr = np.array(np.reshape(box_pr[:18], [9, 2]), dtype='float32')
+                corners2D_gt = np.array(np.reshape(box_gt[:18], [-1, 2]), dtype='float32')
+                corners2D_pr = np.array(np.reshape(box_pr[:18], [-1, 2]), dtype='float32')
                 corners2D_gt[:, 0] = corners2D_gt[:, 0] * im_width
                 corners2D_gt[:, 1] = corners2D_gt[:, 1] * im_height          
                 corners2D_pr[:, 0] = corners2D_pr[:, 0] * im_width