Project-MONAI/MONAI

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AI Toolkit for Healthcare Imaging

Stars: 8.7k
Forks: 1.6k
Open beginner issues: 0
Indexed issues: 339
Avg merge: 5d 1h
Merged PRs (30d): 20

Dominant language: Python
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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339 open issues indexed

Release 1.6.1 Checklist Open

CI/CD

Project-MONAI/MONAI#9119 · 1 comment · 1 assignee · Opened Sep 17, 2026
EmbeddingCollapseMetric: per-class rank scores never reach `aggregate`, so asymmetric collapse is invisible in the summary score Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Project-MONAI/MONAI#9116 · Opened Sep 12, 2026
Support for YOLO-style / modern object detection models (2D and 3D) Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

Project-MONAI/MONAI#9111 · Opened Sep 11, 2026
GridPatchDataset caching can repeat, drop, or reject samples Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Project-MONAI/MONAI#9100 · Opened Sep 5, 2026
HausdorffDistanceMetric percentile returns NaN for a missed prediction, dropping failures from the dataset average Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

Project-MONAI/MONAI#9095 · Opened Sep 4, 2026
nuclick transforms: min_area and do_reconstruction are documented but never used Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Project-MONAI/MONAI#9083 · 1 comment · Opened Sep 2, 2026
Expand ONNX export test coverage beyond UNet and SegResNet Open

Difficulty 3/5 1-2 days Newbie friendliness 75/100

Project-MONAI/MONAI#9072 · Opened Aug 25, 2026
Unit-test results depend on the Python version: unbounded upper pins let 3.12 resolve dependencies CI never sees Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

Project-MONAI/MONAI#9069 · Opened Aug 22, 2026
spatial_resample raises TypeError when spatial_size is None and spatial_rank is 1 Open

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

Project-MONAI/MONAI#9068 · 2 comments · Opened Aug 22, 2026
Consolidate formatting: replace black and isort with ruff Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Project-MONAI/MONAI#9066 · 1 comment · 3 reactions · Opened Aug 22, 2026
get_edge_surface_distance passes the deprecated always_return_as_numpy argument internally Open

Difficulty 1/5 1-3 hours Newbie friendliness 55/100

Project-MONAI/MONAI#9059 · Opened Aug 17, 2026
CI Updates 2026 Open

CI/CD

Project-MONAI/MONAI#9058 · 2 assignees · Opened Aug 12, 2026
[Feature Request] Implement "Depth Reduced Strategy" for Model Compression across MONAI Networks Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

Project-MONAI/MONAI#9050 · 1 comment · Opened Aug 5, 2026
CLAHE Transform Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Project-MONAI/MONAI#9049 · 4 comments · Opened Aug 3, 2026
RandGridPatch crashes for documented 0 or None patch_size entries Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

Project-MONAI/MONAI#9046 · Opened Aug 3, 2026
Incorrect type hint in `pad_func` Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

Project-MONAI/MONAI#9026 · Opened Jul 28, 2026
Some Stored Weights for Bundles Not Compatible With `weights_only=True` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Project-MONAI/MONAI#9025 · 2 comments · Opened Jul 27, 2026
GlobalMutualInformationLoss returns NaN for constant B-spline inputs Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Project-MONAI/MONAI#9018 · Opened Jul 25, 2026
Native transform for computing image registration (classical/instance-optimization) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Project-MONAI/MONAI#9008 · Opened Jul 22, 2026
BoxToMaskD and MaskToBoxD Transpose Results Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

Project-MONAI/MONAI#8998 · 7 comments · Opened Jul 17, 2026
Avoid shell=True in nnUNetV2Runner.train_parallel while preserving per-device command order Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

Project-MONAI/MONAI#8992 · 1 comment · Opened Jul 13, 2026
Use Merge Queues Open

CI/CD github_actions

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Project-MONAI/MONAI#8990 · 3 comments · 2 reactions · Opened Jul 13, 2026
CropForegroundd on ROI with text Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Project-MONAI/MONAI#8988 · 1 comment · Opened Jul 9, 2026
Skip CI Tests Based on Checks, Not Action File Open

CI/CD Feedback welcomed

Project-MONAI/MONAI#8971 · 3 comments · 1 assignee · Opened Jul 2, 2026
Candidate Duplicate Test Cases For Cleanup Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

Project-MONAI/MONAI#8942 · 2 comments · Opened Jun 22, 2026
Feat Request: Conformal prediction Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

Project-MONAI/MONAI#8935 · 1 comment · Opened Jun 20, 2026
Discussion: optional RankSEG-style decoding support in MONAI post-processing Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

Project-MONAI/MONAI#8857 · 3 comments · 7 reactions · Opened May 18, 2026
CI Error "OSError: [Errno 28] No space left on device" Open

CI/CD

Project-MONAI/MONAI#8838 · 1 comment · 1 assignee · Opened Apr 29, 2026
[EHNANCEMENT] Better Performance For engines/utils.py Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Project-MONAI/MONAI#8806 · 3 comments · Opened Apr 4, 2026
`apex.contrib.clip_grad.clip_grad_norm_` crashes with PyTorch 2.10 Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Project-MONAI/MONAI#8737 · Opened Feb 11, 2026
Feature Request: Evaluation of Semantic Segmentation Metrics on a per-component basis Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

Project-MONAI/MONAI#8733 · 2 comments · Opened Feb 6, 2026
Feature Request: Add SparseDice, SparseClDice, CenterlineDice Losses and 3D TransUNet Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

Project-MONAI/MONAI#8731 · 1 comment · Opened Feb 4, 2026
Bug Report: MONAI Import Hangs on macOS with Apple Silicon (MPS) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Project-MONAI/MONAI#8721 · 1 comment · Opened Jan 26, 2026
discrepancy between local pre-commit and CI's codeformat Open

CI/CD

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Project-MONAI/MONAI#8683 · 5 comments · Opened Jan 5, 2026
Ignore Class Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Project-MONAI/MONAI#8667 · 1 comment · 2 reactions · Opened Dec 21, 2025
NRRD Reader for 4D images Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

Project-MONAI/MONAI#8653 · 1 comment · Opened Dec 3, 2025
Add Fréchet Radiomics Distance (FRD-Score) to MONAI Metrics Open

Feature request Feedback welcomed

Project-MONAI/MONAI#8643 · 4 comments · 1 assignee · Opened Nov 25, 2025
The issue of deserialization with pickle in MONAI Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

Project-MONAI/MONAI#8635 · 1 comment · Opened Nov 17, 2025
Torchscript Deprecation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Project-MONAI/MONAI#8632 · Opened Nov 14, 2025
Please use MONAI Discussion tab for questions Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

Project-MONAI/MONAI#8608 · 3 reactions · Opened Oct 31, 2025
AttributeError in DataLoader when using RandGridDistortiond transform Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

Project-MONAI/MONAI#8604 · 3 comments · Opened Oct 27, 2025
Add sigmoid/softmax interface for `AsymmetricUnifiedFocalLoss` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Project-MONAI/MONAI#8603 · 1 comment · Opened Oct 26, 2025
Make MONAI generative features compatible with huggingface diffusers library Open

GenerativeModels

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Project-MONAI/MONAI#8597 · Opened Oct 17, 2025
Increasing the relevance of MONAI to CAI (computer assisted intervention). Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

Project-MONAI/MONAI#8557 · 3 comments · 1 reaction · Opened Sep 5, 2025
Create "Inferer" class for Diffusion Models specifically Open

GenerativeModels

Project-MONAI/MONAI#8556 · 1 assignee · Opened Sep 5, 2025
Default for SupervisedTrainer slows down training almost 2x Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Project-MONAI/MONAI#8541 · Opened Aug 19, 2025
Integrating MICCAI Submissions into MONAI Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

Project-MONAI/MONAI#8519 · 61 comments · 5 reactions · Opened Jul 24, 2025
Memory leak/high memory usage in ITKReader with mha files Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Project-MONAI/MONAI#8511 · 6 comments · Opened Jul 16, 2025
Validation time per image increases drastically in later epochs during Auto3DSeg training Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

Project-MONAI/MONAI#8509 · 1 comment · Opened Jul 9, 2025
Feature: Calibration Error Metrics and Losses Open

Project-MONAI/MONAI#8505 · 1 comment · 1 reaction · 1 assignee · Opened Jul 2, 2025

Project-MONAI/MONAI

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