lraspp_mobilenet_v3_large

torchvision.models.segmentation.lraspp_mobilenet_v3_large(*, weights: Optional[torchvision.models.segmentation.lraspp.LRASPP_MobileNet_V3_Large_Weights] = None, progress: bool = True, num_classes: Optional[int] = None, weights_backbone: Optional[torchvision.models.mobilenetv3.MobileNet_V3_Large_Weights] = MobileNet_V3_Large_Weights.IMAGENET1K_V1, **kwargs: Any) → torchvision.models.segmentation.lraspp.LRASPP

Constructs a Lite R-ASPP Network model with a MobileNetV3-Large backbone from Searching for MobileNetV3 paper.

Warning

The segmentation module is in Beta stage, and backward compatibility is not guaranteed.

Parameters

• weights (LRASPP_MobileNet_V3_Large_Weights, optional) – The pretrained weights to use. See LRASPP_MobileNet_V3_Large_Weights below for more details, and possible values. By default, no pre-trained weights are used.

• progress (bool, optional) – If True, displays a progress bar of the download to stderr. Default is True.

• num_classes (int, optional) – number of output classes of the model (including the background).

• aux_loss (bool, optional) – If True, it uses an auxiliary loss.

• weights_backbone (MobileNet_V3_Large_Weights, optional) – The pretrained weights for the backbone.

• **kwargs – parameters passed to the torchvision.models.segmentation.LRASPP base class. Please refer to the source code for more details about this class.

class torchvision.models.segmentation.LRASPP_MobileNet_V3_Large_Weights(value)

The model builder above accepts the following values as the weights parameter. LRASPP_MobileNet_V3_Large_Weights.DEFAULT is equivalent to LRASPP_MobileNet_V3_Large_Weights.COCO_WITH_VOC_LABELS_V1. You can also use strings, e.g. weights='DEFAULT' or weights='COCO_WITH_VOC_LABELS_V1'.

LRASPP_MobileNet_V3_Large_Weights.COCO_WITH_VOC_LABELS_V1:

These weights were trained on a subset of COCO, using only the 20 categories that are present in the Pascal VOC dataset. Also available as LRASPP_MobileNet_V3_Large_Weights.DEFAULT.

miou (on COCO-val2017-VOC-labels)	57.9
pixel_acc (on COCO-val2017-VOC-labels)	91.2
num_params	3221538
categories	__background__, aeroplane, bicycle, … (18 omitted)
min_size	height=1, width=1
recipe	link

The inference transforms are available at LRASPP_MobileNet_V3_Large_Weights.COCO_WITH_VOC_LABELS_V1.transforms and perform the following preprocessing operations: Accepts PIL.Image, batched (B, C, H, W) and single (C, H, W) image torch.Tensor objects. The images are resized to resize_size=[520] using interpolation=InterpolationMode.BILINEAR. Finally the values are first rescaled to [0.0, 1.0] and then normalized using mean=[0.485, 0.456, 0.406] and std=[0.229, 0.224, 0.225].