Image segmentation is the task of labeling an image at the pixel level, and it underpins much of modern medical imaging, autonomous perception, and scene understanding. Here we break down segmentation architectures, loss functions, and evaluation practices, with frequent attention to the medical settings where boundary accuracy and robustness matter most. Each piece traces the method back to its source research.
Segmentation sounds like a solved problem until you look at the lesions that actually matter clinically. An ischemic stroke lesion on a T1 weighted MRI can sit at almost the same brightness as healthy tissue around it, a property radiologists…
How GRCSF Compensates for Lost Detail in Medical Lesion Segmentation Read More »
Picture a hospital archive full of cone beam CT scans of people’s jaws, thousands of them, and almost none of them labeled voxel by voxel with where the enamel ends and the pulp begins. That is the actual starting point…
U-Mamba2-SSL Segments Teeth and Pulp From Unlabeled CBCT Read More »
This article explains a published engineering paper about an automated image segmentation method. It is not medical advice, it does not diagnose anything, and it is not a substitute for a colonoscopy, a radiologist’s read, or a conversation with a…
CMFDNet Tackles Blurry Polyp Boundaries With A Cross Mamba Decoder Read More »
This article explains a published research paper. It is not medical advice, diagnosis, or treatment guidance. The segmentation model discussed here is a research prototype, not an approved clinical device. Anyone with a health concern about a breast finding should…
Towards Trustworthy Breast Tumor Segmentation in Ultrasound Using AI Uncertainty Read More »
Ejection fraction is one of the most commonly used numbers in cardiology, a single percentage describing how much blood the left ventricle pumps out with each heartbeat. Getting it right depends on accurately tracing the boundary of the left ventricle,…
Why HSS-Net Splits Echo Video Segmentation Into Two Speeds Read More »
Turning a scatter of LiDAR points into a clean 3D model of a building roof sounds like a job for careful geometry, and for a long time it was. Fit a plane here, grow a region there, hand tune a…
RoofSeg Explained, End to End Roof Plane Segmentation From LiDAR Read More »
Picture a radiology department that wants an AI tool to outline kidneys on ultrasound scans. The best open segmentation model weighs hundreds of megabytes and was trained on everyday photos of cats, cars and coffee mugs. The department has eighty…
Task-Specific Knowledge Distillation for Medical Image Segmentation Read More »
Getting a computer to say which triangles of a mesh belong to a chair leg versus a chair seat sounds like a small problem next to full scene understanding, yet it underpins robotic grasping, 3D asset generation, and interactive editing…
GeoSAM2 Turns SAM2 Into a 3D Part Segmentation Tool Read More »
Cerebrovascular diseases, stroke, moyamoya disease, and cerebral aneurysms among them, remain a major cause of death and disability, and diagnosing them accurately depends on understanding the geometry of the cerebral arteries. Digital subtraction angiography, often shortened to DSA, is the…
DSANET Uses Full DSA Sequences to Segment Cerebral Arteries Read More »
Normal pressure hydrocephalus, usually shortened to NPH, shows up mostly in older adults as a triad of gait impairment, urinary incontinence, and cognitive decline, caused by cerebrospinal fluid building up in the brain’s ventricular system. What makes it clinically important,…
Weakly Supervised AI for Normal Pressure Hydrocephalus (NPH) Screening on CT Scans Read More »