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person-vehicle-bike-detection-2001.md

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person-vehicle-bike-detection-2001

Use Case and High-Level Description

This is a person, vehicle, bike detector that is based on MobileNetV2 backbone with two SSD heads from 1/16 and 1/8 scale feature maps and clustered prior boxes for 384x384 resolution.

Example

Specification

Metric Value
AP @ [ IoU=0.50:0.95 ] 0.226 (internal test set)
GFlops 1.770
MParams 1.821
Source framework PyTorch*

Average Precision (AP) is defined as an area under the precision/recall curve.

Inputs

Name: input, shape: [1x3x384x384] - An input image in the format [BxCxHxW], where:

  • B - batch size
  • C - number of channels
  • H - image height
  • W - image width

Expected color order is BGR.

Outputs

The net outputs blob with shape: [1, 1, N, 7], where N is the number of detected bounding boxes. Each detection has the format [image_id, label, conf, x_min, y_min, x_max, y_max], where:

  • image_id - ID of the image in the batch
  • label - predicted class ID (0 - vehicle, 1 - person, 2 - bike)
  • conf - confidence for the predicted class
  • (x_min, y_min) - coordinates of the top left bounding box corner
  • (x_max, y_max) - coordinates of the bottom right bounding box corner.

Legal Information

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