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Commits
| Author | SHA1 | Date | |
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b29709c50d | ||
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0479c98a11 | ||
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3839d938d6 |
@@ -14,7 +14,6 @@ from tqdm import tqdm
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from sam2_realtime.modeling.sam2_base import NO_OBJ_SCORE, SAM2Base
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from sam2_realtime.utils.misc import concat_points, fill_holes_in_mask_scores, load_video_frames
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class SAM2TensorPredictor(SAM2Base):
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"""The predictor class to handle user interactions and manage inference states."""
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@@ -55,7 +54,9 @@ class SAM2TensorPredictor(SAM2Base):
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img = img.float()
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else:
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raise ValueError("Input must be a numpy array or a PyTorch tensor")
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#save original height/width
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orig_h, orig_w = img.shape[1:]
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# Resize to the target size (supports tensor resizing)
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img = torch.nn.functional.interpolate(
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img.unsqueeze(0), size=(image_size, image_size), mode="bilinear", align_corners=False
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@@ -68,28 +69,29 @@ class SAM2TensorPredictor(SAM2Base):
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img /= img_std
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height, width = img.shape[1:] # CHW format
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return img, width, height
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return img, width, height, orig_w, orig_h
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@torch.inference_mode()
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def load_first_frame(self, img):
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if isinstance(img, torch.Tensor):
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img = img.to(self.device) # Ensure the tensor is on the correct device
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self.condition_state = self._init_state(
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offload_video_to_cpu=False, offload_state_to_cpu=False
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)
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img, width, height = self.prepare_data(img, image_size=self.image_size)
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img, width, height, orig_w, orig_h = self.prepare_data(img, image_size=self.image_size)
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self._orig_hw = (orig_w, orig_h)
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self.condition_state["images"] = [img]
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self.condition_state["num_frames"] = len(self.condition_state["images"])
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self.condition_state["video_height"] = height
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self.condition_state["video_width"] = width
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self._get_image_feature(frame_idx=0, batch_size=1)
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def add_conditioning_frame(self, img):
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if isinstance(img, torch.Tensor):
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img = img.to(self.device) # Ensure the tensor is on the correct device
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img, width, height = self.prepare_data(img, image_size=self.image_size)
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img, width, height, _, _ = self.prepare_data(img, image_size=self.image_size)
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self.condition_state["images"].append(img)
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self.condition_state["num_frames"] = len(self.condition_state["images"])
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self._get_image_feature(
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@@ -235,14 +237,15 @@ class SAM2TensorPredictor(SAM2Base):
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points = torch.cat([box_coords, points], dim=1)
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labels = torch.cat([box_labels, labels], dim=1)
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if normalize_coords:
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video_H = self.condition_state["video_height"]
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video_W = self.condition_state["video_width"]
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points = points / torch.tensor([video_W, video_H]).to(points.device)
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#video_H = self.condition_state["video_height"]
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#video_W = self.condition_state["video_width"]
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orig_w, orig_h = self._orig_hw
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points = points / torch.tensor([orig_w, orig_h]).to(points.device)
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# scale the (normalized) coordinates by the model's internal image size
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points = points * self.image_size
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points = points.to(self.condition_state["device"])
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labels = labels.to(self.condition_state["device"])
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if not clear_old_points:
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point_inputs = point_inputs_per_frame.get(frame_idx, None)
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else:
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@@ -342,14 +345,16 @@ class SAM2TensorPredictor(SAM2Base):
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if labels.dim() == 1:
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labels = labels.unsqueeze(0) # add batch dimension
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if normalize_coords:
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video_H = self.condition_state["video_height"]
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video_W = self.condition_state["video_width"]
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points = points / torch.tensor([video_W, video_H]).to(points.device)
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#video_H = self.condition_state["video_height"]
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#video_W = self.condition_state["video_width"]
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orig_w, orig_h = self._orig_hw
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points = points / torch.tensor([orig_w, orig_h]).to(points.device)
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# scale the (normalized) coordinates by the model's internal image size
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points = points * self.image_size
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points = points.to(self.condition_state["device"])
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labels = labels.to(self.condition_state["device"])
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if not clear_old_points:
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point_inputs = point_inputs_per_frame.get(frame_idx, None)
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else:
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@@ -769,7 +774,7 @@ class SAM2TensorPredictor(SAM2Base):
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if isinstance(img, torch.Tensor):
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img = img.to(self.device) # Ensure the tensor is on the correct device
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img, _, _ = self.prepare_data(img, image_size=self.image_size)
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img, _, _ , _, _ = self.prepare_data(img, image_size=self.image_size)
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output_dict = self.condition_state["output_dict"]
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obj_ids = self.condition_state["obj_ids"]
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