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Object detection takes an image and outputs information about the class and number of objects, position, (and, eventually, size) in the image. Edge Impulse provides several object detection model architectures built into the platform, in addition to the providing the ability to use a custom learning block to bring in your own architectures. The built-in options are:
SpecificationYOLO-ProFOMOMobileNetV2 SSD FPN
Labelling methodBounding boxesBounding boxesBounding boxes
Input image sizeMultiples of 32
(square)
Any
(square)
320x320
Input image colourRGBGreyscale or RGBRGB
Output formatBounding boxesCentroidsBounding boxes
MCU inference
CPU/GPU inference
LimitationsCurrently in developer preview.Objects should have similar sizes and shapes.Objects should be large relative to the image.
Objects should not be too close to each other.Models use high compute resources (in the edge computing world).
Object size not available.Input image size is fixed.
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