diff --git a/utils/dataloader.py b/utils/dataloader.py
index 75b7da45b2dfbf51d9da129926332146fc3be532..0d645a2c653631a999cc1a00319c8d4c5740eeb2 100644
--- a/utils/dataloader.py
+++ b/utils/dataloader.py
@@ -113,7 +113,7 @@ class YoloDataset(Dataset):
         image   = image.resize((w,h), Image.BICUBIC)
         image_data  = np.array(image, np.float32)
         
-        return image_data, box
+        return image_data, rbox
     
     def merge_bboxes(self, bboxes, cutx, cuty):
         merge_bbox = []
diff --git a/utils/utils_bbox.py b/utils/utils_bbox.py
index abe11f1a19730fafb4230b7be36fa4f8dc9ecb1a..d1b0954539a32db287e32fabc0ce217ad589e4b1 100644
--- a/utils/utils_bbox.py
+++ b/utils/utils_bbox.py
@@ -229,104 +229,6 @@ class DecodeBox():
                 output[i][:, :5]      = self.yolo_correct_boxes(box_xy, box_wh, angle, input_shape, image_shape, letterbox_image)
         return output
 
-    def non_max_suppression_obb(self, prediction, conf_thres=0.25, iou_thres=0.45, classes=None, agnostic=False, multi_label=False,
-                            labels=()):
-        """Runs Non-Maximum Suppression (NMS) on inference results
-
-        Returns:
-            list of detections, on (n,6) tensor per image [xyxy, conf, cls]
-        """
-
-        nc = prediction.shape[2] - 5 - 1  # number of classes
-        xc = prediction[..., 5] > conf_thres  # candidates
-
-        # Settings
-        min_wh, max_wh = 2, 4096  # (pixels) minimum and maximum box width and height
-        max_det = 300  # maximum number of detections per image
-        max_nms = 30000  # maximum number of boxes into torchvision.ops.nms()
-        time_limit = 10.0  # seconds to quit after
-        redundant = True  # require redundant detections
-        multi_label &= nc > 1  # multiple labels per box (adds 0.5ms/img)
-        merge = False  # use merge-NMS
-
-        output = [torch.zeros((0, 7), device=prediction.device)] * prediction.shape[0]
-        for xi, x in enumerate(prediction):  # image index, image inference
-            # Apply constraints
-            # x[((x[..., 2:4] < min_wh) | (x[..., 2:4] > max_wh)).any(1), 4] = 0  # width-height
-            x = x[xc[xi]]  # confidence
-
-            # Cat apriori labels if autolabelling no used just now
-            if labels and len(labels[xi]):
-                l = labels[xi]
-                v = torch.zeros((len(l), nc + 6), device=x.device)
-                v[:, :5] = l[:, 1:6]  # box
-                v[:, 5] = 1.0  # conf
-                v[range(len(l)), l[:, 0].long() + 6] = 1.0  # cls
-                x = torch.cat((x, v), 0)
-
-            # If none remain process next image
-            if not x.shape[0]:
-                continue
-
-            # Compute conf
-            if nc == 1:
-                x[:, 6: 6+nc] = x[:, 5:6] # for models with one class, cls_loss is 0 and cls_conf is always 0.5,
-                                    # so there is no need to multiplicate.
-            else:
-                x[:, 6:6+nc] *= x[:, 5:6]  # conf = obj_conf * cls_conf
-
-            # Box (center x, center y, width, height) to (x1, y1, x2, y2)
-            # box = xywh2xyxy(x[:, :4])
-            # _, theta_pred = torch.max(x[:, class_index:], 1,  keepdim=True) # [n_conf_thres, 1] θ ∈ int[0, 179]
-            # theta_pred = (theta_pred - 90) / 180 * pi # [n_conf_thres, 1] θ ∈ [-pi/2, pi/2)
-            theta_pred = (x[:,4:5] - 0.5) * torch.pi
-
-            # Detections matrix nx7 (xyxy,theta, conf, cls)
-            if multi_label:
-                i, j = (x[:, 6:6+nc] > conf_thres).nonzero(as_tuple=False).T
-                x = torch.cat((x[i, :4], theta_pred[i], x[i, j + 6, None], j[:, None].float()), 1)
-            else:  # best class only
-                conf, j = x[:, 6:6+nc].max(1, keepdim=True)
-                x = torch.cat((x[:, :4], theta_pred, conf, j.float()), 1)[conf.view(-1) > conf_thres]
-
-            # Filter by class
-            if classes is not None:
-                x = x[(x[:, 6:7] == torch.tensor(classes, device=x.device)).any(1)]
-
-            # Apply finite constraint
-            # if not torch.isfinite(x).all():
-            #     x = x[torch.isfinite(x).all(1)]
-
-            # Check shape
-            n = x.shape[0]  # number of boxes
-            if not n:  # no boxes
-                continue
-            elif n > max_nms:  # excess boxes
-                x = x[x[:, 5].argsort(descending=True)[:max_nms]]  # sort by confidence
-
-            # Batched NMS
-            c = x[:, 6:7] * (0 if agnostic else max_wh)  # classes
-            rboxes = x[:, :5].clone()
-            rboxes[:, :2] = rboxes[:, :2] + c # rboxes (offset by class)
-            scores = x[:, 5]  # scores
-            #boxes, scores = x[:, :4] + c, x[:, 4]  # boxes (offset by class), scores
-            #i = torchvision.ops.nms(boxes, scores, iou_thres)  # NMS
-            _, i = obb_nms(rboxes, scores, iou_thres) # obb NMS
-            if i.shape[0] > max_det:  # limit detections
-                i = i[:max_det]
-            # if merge and (1 < n < 3E3):  # Merge NMS (boxes merged using weighted mean)
-            #     # update boxes as boxes(i,4) = weights(i,n) * boxes(n,4)
-            #     iou = box_iou(boxes[i], boxes) > iou_thres  # iou matrix
-            #     weights = iou * scores[None]  # box weights
-            #     x[i, :4] = torch.mm(weights, x[:, :4]).float() / weights.sum(1, keepdim=True)  # merged boxes
-            #     if redundant:
-            #         i = i[iou.sum(1) > 1]  # require redundancy
-
-            output[xi] = x[i]
-
-        return output
-    
-
 if __name__ == "__main__":
     import matplotlib.pyplot as plt
     import numpy as np