Add 3D support and confusion matrix output to PanopticQualityMetric #8684
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📝 WalkthroughWalkthroughExtends PanopticQualityMetric to accept 3D volumetric inputs (B, 2, H, W, D / B, 2, H, W) and adds a constructor flag Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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🧹 Nitpick comments (1)
monai/metrics/panoptic_quality.py (1)
24-24: Consider sorting__all__alphabetically.Static analysis suggests alphabetical ordering for consistency.
♻️ Proposed fix
-__all__ = ["PanopticQualityMetric", "compute_panoptic_quality", "compute_mean_iou"] +__all__ = ["PanopticQualityMetric", "compute_mean_iou", "compute_panoptic_quality"]
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monai/metrics/panoptic_quality.py (1)
monai/metrics/confusion_matrix.py (1)
_compute_tensor(80-99)
tests/metrics/test_compute_panoptic_quality.py (1)
monai/metrics/panoptic_quality.py (3)
PanopticQualityMetric(27-168)aggregate(132-168)compute_mean_iou(315-333)
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monai/metrics/panoptic_quality.py
24-24: __all__ is not sorted
Apply an isort-style sorting to __all__
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107-109: Avoid specifying long messages outside the exception class
(TRY003)
148-148: Prefer TypeError exception for invalid type
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148-148: Avoid specifying long messages outside the exception class
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🔇 Additional comments (12)
monai/metrics/panoptic_quality.py (5)
58-60: LGTM!The
return_confusion_matrixparameter is well-documented and maintains backward compatibility with its default value.Also applies to: 70-70, 78-78
83-94: LGTM!Docstrings clearly document 2D and 3D input formats.
106-109: LGTM!Validation correctly accepts both 4D (2D images) and 5D (3D volumes) tensors. Error message is clear and helpful.
141-156: LGTM!Early return pattern cleanly handles confusion matrix output. Logic and documentation are correct.
315-333: LGTM!Function correctly computes mean IoU from confusion matrix. Formula matches Segmentation Quality calculation (line 164), which is appropriate. Docstring is complete and validation is robust.
tests/metrics/test_compute_panoptic_quality.py (7)
92-120: LGTM!3D test data is properly shaped (B=1, C=2, H=2, W=2, D=2) and test cases are well-defined.
142-152: LGTM!Test validates 3D input acceptance and correct output shape. Good coverage of the new feature.
154-170: LGTM!Comprehensive test of confusion matrix return. Validates both shape and value constraints (non-negativity).
172-184: LGTM!Test validates
compute_mean_iouhelper with appropriate shape and value checks.
186-203: LGTM!Test confirms metric filtering works correctly and different metrics produce distinct outputs.
205-218: LGTM!Test validates proper rejection of invalid tensor dimensions (3D and 6D). Good edge case coverage.
220-232: LGTM!Test validates proper error handling for invalid confusion matrix shapes. Good coverage of error cases.
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tests/metrics/test_compute_panoptic_quality.py (2)
92-100: Inline comments placement is confusing.The
# instance channeland# class channelcomments appear after nested sublists, making it unclear which dimension they refer to. Consider restructuring or clarifying.Suggested clarification
sample_3d_pred = torch.as_tensor( - [[[[[2, 0], [1, 1]], [[0, 1], [2, 1]]], [[[0, 1], [3, 0]], [[1, 0], [1, 1]]]]], # instance channel # class channel + [ + [ + [[[2, 0], [1, 1]], [[0, 1], [2, 1]]], # channel 0: instance + [[[0, 1], [3, 0]], [[1, 0], [1, 1]]], # channel 1: class + ] + ], device=_device, )
132-142: Consider adding value assertions for 3D output.Test validates shape but not correctness of computed values. Adding expected metric values (like in 2D tests) would strengthen coverage.
monai/metrics/panoptic_quality.py (2)
24-24: Optional: Sort__all__alphabetically.Per Ruff RUF022, isort-style sorting is preferred.
Suggested fix
-__all__ = ["PanopticQualityMetric", "compute_panoptic_quality", "compute_mean_iou"] +__all__ = ["PanopticQualityMetric", "compute_mean_iou", "compute_panoptic_quality"]
315-333: MissingRaisessection in docstring.Per coding guidelines, docstrings should document raised exceptions.
Suggested fix
Args: confusion_matrix: tensor with shape (..., 4) where the last dimension contains [tp, fp, fn, iou_sum] as returned by `compute_panoptic_quality` with `output_confusion_matrix=True`. smooth_numerator: a small constant added to the numerator to avoid zero. Returns: Mean IoU computed as iou_sum / (tp + smooth_numerator). + Raises: + ValueError: when `confusion_matrix` last dimension is not 4. + """
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**/*.py
⚙️ CodeRabbit configuration file
Review the Python code for quality and correctness. Ensure variable names adhere to PEP8 style guides, are sensible and informative in regards to their function, though permitting simple names for loop and comprehension variables. Ensure routine names are meaningful in regards to their function and use verbs, adjectives, and nouns in a semantically appropriate way. Docstrings should be present for all definition which describe each variable, return value, and raised exception in the appropriate section of the Google-style of docstrings. Examine code for logical error or inconsistencies, and suggest what may be changed to addressed these. Suggest any enhancements for code improving efficiency, maintainability, comprehensibility, and correctness. Ensure new or modified definitions will be covered by existing or new unit tests.
Files:
monai/metrics/panoptic_quality.pytests/metrics/test_compute_panoptic_quality.py
🧬 Code graph analysis (2)
monai/metrics/panoptic_quality.py (3)
monai/utils/misc.py (1)
ensure_tuple(166-178)monai/metrics/confusion_matrix.py (1)
_compute_tensor(80-99)monai/metrics/utils.py (1)
do_metric_reduction(71-130)
tests/metrics/test_compute_panoptic_quality.py (1)
monai/metrics/panoptic_quality.py (3)
PanopticQualityMetric(27-168)aggregate(132-168)compute_mean_iou(315-333)
🪛 Ruff (0.14.10)
monai/metrics/panoptic_quality.py
24-24: __all__ is not sorted
Apply an isort-style sorting to __all__
(RUF022)
107-109: Avoid specifying long messages outside the exception class
(TRY003)
148-148: Prefer TypeError exception for invalid type
(TRY004)
148-148: Avoid specifying long messages outside the exception class
(TRY003)
328-331: Avoid specifying long messages outside the exception class
(TRY003)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (19)
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🔇 Additional comments (10)
tests/metrics/test_compute_panoptic_quality.py (5)
144-160: LGTM. Confusion matrix validation is appropriate.Minor: Comment on line 150 mentions shape
(batch_size, num_classes, 4)but after reduction (default MEAN_BATCH), actual shape is(num_classes, 4). Consider updating the comment.
162-174: LGTM. Tests shape and non-negativity constraints appropriately.
176-193: LGTM. Good validation that different metric names produce different results.
195-208: LGTM. Properly tests boundary cases for invalid tensor dimensions.
210-222: LGTM. Validates error handling for malformed confusion matrices.monai/metrics/panoptic_quality.py (5)
58-60: LGTM. New parameter is well-documented with backward-compatible default.Also applies to: 70-78
80-95: LGTM. Docstrings properly updated for 3D input support.
106-109: LGTM. Dimension validation correctly accepts 4D (2D input) and 5D (3D input).
141-156: LGTM. Clean implementation of optional confusion matrix return path.
188-189: LGTM. Docstring correctly documents 2D/3D input forms.
…roject-MONAI#5702) - Add support for 5D tensors (B2HWD) in addition to existing 4D (B2HW) - Add `return_confusion_matrix` parameter to return raw tp, fp, fn, iou_sum values - Add `compute_mean_iou` helper function for computing mean IoU from confusion matrix - Update docstrings to reflect 2D/3D support - Add comprehensive tests for new functionality Signed-off-by: Soumya Snigdha Kundu <soumya_snigdha.kundu@kcl.ac.uk>
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monai/metrics/panoptic_quality.py (2)
24-24: Consider sorting__all__alphabetically.Static analysis flags unsorted
__all__. Optional cleanup.Suggested fix
-__all__ = ["PanopticQualityMetric", "compute_panoptic_quality", "compute_mean_iou"] +__all__ = ["PanopticQualityMetric", "compute_mean_iou", "compute_panoptic_quality"]
315-332: MissingRaisessection in docstring.Per coding guidelines, docstrings should document raised exceptions.
Suggested fix
Args: confusion_matrix: tensor with shape (..., 4) where the last dimension contains [tp, fp, fn, iou_sum] as returned by `compute_panoptic_quality` with `output_confusion_matrix=True`. smooth_numerator: a small constant added to the numerator to avoid zero. Returns: Mean IoU computed as iou_sum / (tp + smooth_numerator). + Raises: + ValueError: when `confusion_matrix` does not have shape (..., 4). + """tests/metrics/test_compute_panoptic_quality.py (1)
162-174: Consider importingcompute_mean_iouat module level.Since
compute_mean_iouis now in__all__, import it with the other symbols at line 20.Suggested fix
At line 20:
-from monai.metrics import PanopticQualityMetric, compute_panoptic_quality +from monai.metrics import PanopticQualityMetric, compute_mean_iou, compute_panoptic_qualityThen remove the local import at line 164.
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**/*.py
⚙️ CodeRabbit configuration file
Review the Python code for quality and correctness. Ensure variable names adhere to PEP8 style guides, are sensible and informative in regards to their function, though permitting simple names for loop and comprehension variables. Ensure routine names are meaningful in regards to their function and use verbs, adjectives, and nouns in a semantically appropriate way. Docstrings should be present for all definition which describe each variable, return value, and raised exception in the appropriate section of the Google-style of docstrings. Examine code for logical error or inconsistencies, and suggest what may be changed to addressed these. Suggest any enhancements for code improving efficiency, maintainability, comprehensibility, and correctness. Ensure new or modified definitions will be covered by existing or new unit tests.
Files:
monai/metrics/panoptic_quality.pytests/metrics/test_compute_panoptic_quality.py
🧬 Code graph analysis (1)
monai/metrics/panoptic_quality.py (1)
monai/metrics/confusion_matrix.py (1)
_compute_tensor(80-99)
🪛 Ruff (0.14.10)
monai/metrics/panoptic_quality.py
24-24: __all__ is not sorted
Apply an isort-style sorting to __all__
(RUF022)
107-109: Avoid specifying long messages outside the exception class
(TRY003)
148-148: Prefer TypeError exception for invalid type
(TRY004)
148-148: Avoid specifying long messages outside the exception class
(TRY003)
328-331: Avoid specifying long messages outside the exception class
(TRY003)
🔇 Additional comments (10)
monai/metrics/panoptic_quality.py (4)
58-78: LGTM!Constructor extension with
return_confusion_matrixparameter is clean and well-documented.
80-130: LGTM!3D support implemented correctly. Validation logic and docstrings properly updated.
141-155: LGTM!Clean conditional return of raw confusion matrix values.
188-188: LGTM!Docstring correctly reflects 2D/3D input support.
tests/metrics/test_compute_panoptic_quality.py (6)
91-110: LGTM!3D test fixtures and confusion matrix test case properly defined.
132-142: LGTM!Valid acceptance test for 3D input. Consider adding expected value assertions in future iterations.
144-160: LGTM!Good coverage of confusion matrix return functionality.
176-193: LGTM!Good validation that different metric names produce different results.
195-208: LGTM!Good negative test coverage for invalid tensor dimensions.
210-222: LGTM!Good negative test coverage for
compute_mean_iouinput validation.
1 participant
Fixes #5702
Description
This PR adds two features requested in issue #5702:
3D Support:
PanopticQualityMetricnow accepts both 4D tensors (B2HW for 2D data) and 5D tensors (B2HWD for 3D data). Previously, only 2D inputs were supported.Confusion Matrix Output: Added
return_confusion_matrixparameter toPanopticQualityMetric. When set toTrue, theaggregate()method returns raw confusion matrix values (tp, fp, fn, iou_sum) instead of computed metrics, enabling custom metric calculations.Helper Function: Added
compute_mean_iou()function to compute mean IoU from confusion matrix values.Note: While panoptica exists as a standalone library, I feel this would still be a nice addition to MONAI.
Types of changes
./runtests.sh -f -u --net --coverage../runtests.sh --quick --unittests --disttests.make htmlcommand in thedocs/folder.