Vision Analysis
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YOLOv9-C

yolov9

one-stage detector with GELAN backbone

Parameters25.5M
GFLOPs51.8
Input Size640px
Best mAP49.5%
LicenseMIT

Architecture

Type

one-stage

Backbone

GELAN

Neck

PGI

Head

Decoupled

Benchmark Results

Performance on COCO val2017 across different hardware configurations

HardwareRuntimemAP@50-95FPSLatencyVRAM
NVIDIA A100PyTorch FP3249.5%33.629.7ms239 MB

Speed Breakdown(NVIDIA A100)

6.2ms
19.0ms
4.6ms
Preprocess
Inference
Postprocess (NMS)

Usage with LibreYOLO

from libreyolo import LIBREYOLO

# Load model (auto-downloads from HuggingFace if not found locally)
model = LIBREYOLO("libreyolo9c.pt")

# Run inference
result = model("image.jpg", conf=0.25, iou=0.45)

# Process results
print(f"Found {len(result)} objects")
print(result.boxes.xyxy)   # bounding boxes (N, 4)
print(result.boxes.conf)   # confidence scores (N,)
print(result.boxes.cls)    # class IDs (N,)
anchor-freenmsPaper: 53% mAP

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