Merge branch 'dev' into patch-1

Author: ericspod

docs/source/metrics.rst

@@ -158,6 +158,13 @@ Metrics
 
 `Fréchet Inception Distance`
 ------------------------------
+`Embedding Collapse`
+------------------------------
+.. autofunction:: compute_embedding_collapse
+
+.. autoclass:: EmbeddingCollapseMetric
+    :members:
+
 .. autofunction:: compute_frechet_distance
 
 .. autoclass:: FIDMetric

monai/apps/detection/utils/anchor_utils.py

@@ -253,7 +253,7 @@ def grid_anchors(self, grid_sizes: list[list[int]], strides: list[list[Tensor]])
             # compute anchor centers regarding to the image.
             # shifts_centers is [x_center, y_center] or [x_center, y_center, z_center]
             shifts_centers = [
-                torch.arange(0, size[axis], dtype=torch.int32, device=device) * stride[axis]
+                torch.arange(0, size[axis], dtype=torch.int32, device=device) * stride[axis] + stride[axis] // 2
                 for axis in range(self.spatial_dims)
             ]
 

monai/metrics/__init__.py

@@ -16,6 +16,7 @@
 from .calibration import CalibrationErrorMetric, CalibrationReduction, calibration_binning
 from .confusion_matrix import ConfusionMatrixMetric, compute_confusion_matrix_metric, get_confusion_matrix
 from .cumulative_average import CumulativeAverage
+from .embedding_collapse import EmbeddingCollapseMetric, compute_embedding_collapse
 from .f_beta_score import FBetaScore
 from .fid import FIDMetric, compute_frechet_distance
 from .froc import compute_fp_tp_probs, compute_fp_tp_probs_nd, compute_froc_curve_data, compute_froc_score