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InceptionNeXt

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InceptionNeXt

Category: CNN · Code: timm/models/inception_next.py · Architectures: 4 · Pretrained weights: 5 (5 with ImageNet-1k results)

InceptionNeXt decomposes the large kernel depthwise convolution of ConvNeXt into parallel branches, a small square kernel, two orthogonal band kernels and an identity mapping, following Inception.

Papers

Usage

See the Quickstart for loading pretrained weights, image preprocessing and fine-tuning, and Feature Extraction for using the models as backbones.

>>> import timm
>>> model = timm.create_model('inception_next_tiny.sail_in1k', pretrained=True)
>>> data_config = timm.data.resolve_model_data_config(model)

Model API support

FeatureMetaNeXt
features_only=True feature maps✓ (strides 4, 8, 16, 32)
forward_intermediates()✓
prune_intermediate_layers()✓
Any input size, no changes needed✓
set_input_size()–
dynamic_img_size=True–
set_grad_checkpointing()✓
Layer-wise LR decay (group_matcher())✓
reset_classifier()✓

✓ supported, ✓ (square) works for square sizes only, ✗ not supported, – not needed (the model already accepts any input size). Checked by running each feature on a randomly initialized model (MetaNeXt with inception_next_atto at 224), other architectures of the same class are expected to behave the same. See the Model API page for details.

Architectures

ArchitectureParams (M)GMACsInput sizePretrained weights
inception_next_atto4.160.502241
inception_next_base86.6714.852242
inception_next_small49.378.362241
inception_next_tiny28.064.192241

GMACs and parameter counts are for the default input size and classifier of each architecture, from the benchmark results.

Pretrained weights

Top-1 is ImageNet-1k validation accuracy from results-imagenet.csv at the listed eval size, - if the weight has no ImageNet-1k result (e.g. pretraining or image-text weights). Classes is the size of the pretrained classifier, none for weights without one.

WeightInput sizeTop-1 (%)Eval sizeClassesLicenseHub
inception_next_atto.sail_in1k22475.3482241000apache-2.0timm
inception_next_base.sail_in1k22484.0982241000apache-2.0timm
inception_next_base.sail_in1k_38438485.2023841000apache-2.0timm
inception_next_small.sail_in1k22483.5842241000apache-2.0timm
inception_next_tiny.sail_in1k22482.5082241000apache-2.0timm
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