README.md

instance-segmentation-person-0007

Use Case and High-Level Description

This model is an instance segmentation network for one class - person. It is a PointRend based architecture with EfficientNet-B1 backbone, light-weight FPN, RPN, detection and segmentation heads.

Example

Specification

Metric	Value
COCO val2017 box AP (person)	35.7%
COCO val2017 mask AP (person)	30.9%
Max objects to detect	10
GFlops	4.8492
MParams	7.2996
Source framework	PyTorch*

Average Precision (AP) is defined and measured according to standard COCO evaluation procedure.

Inputs

Image, name: image, shape: 1, 3, 320, 544 in the format 1, C, H, W, where:

• C - number of channels
• H - image height
• W - image width

The expected channel order is BGR

Outputs

Model has outputs with dynamic shapes.

1. Name: labels, shape: -1 - Contiguous integer class ID for every detected object.
2. Name: boxes, shape: -1, 5 - Bounding boxes around every detected objects in (top_left_x, top_left_y, bottom_right_x, bottom_right_y) format and its confidence score in range [0, 1].
3. Name: masks, shape: -1, 224, 224 - Segmentation heatmaps for every output bounding box.

Training Pipeline

The OpenVINO Training Extensions provide a training pipeline, allowing to fine-tune the model on custom dataset.

Demo usage

The model can be used in the following demos provided by the Open Model Zoo to show its capabilities:

• Background subtraction Python* Demo
• Instance Segmentation Python* Demo

Legal Information

[*] Other names and brands may be claimed as the property of others.