Tensorflow keras computer vision attention models

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Keras_cv_attention_models

Keras_cv_attention_models
Usage
- Basic Usage
- Layers
- Model surgery
- AotNet
- BotNet
- CMT
- CoaT
- CoAtNet
- CoTNet
- GMLP
- HaloNet
- LeViT
- MLP mixer
- NFNets
- RegNetZ
- ResMLP
- ResNeSt
- ResNetD
- ResNetQ
- ResNeXt
- VOLO
Other implemented tensorflow or keras models

Roadmap and todo list

Usage

Basic Usage

Install as pip package:

pip install -U keras-cv-attention-models
# Or
pip install -U git+https://github.com/leondgarse/keras_cv_attention_models

Refer to each sub directory for detail usage.

Basic model prediction

from keras_cv_attention_models import volo
mm = volo.VOLO_d1(pretrained="imagenet")

""" Run predict """
import tensorflow as tf
from tensorflow import keras
from skimage.data import chelsea
img = chelsea() # Chelsea the cat
imm = keras.applications.imagenet_utils.preprocess_input(img, mode='torch')
pred = mm(tf.expand_dims(tf.image.resize(imm, mm.input_shape[1:3]), 0)).numpy()
pred = tf.nn.softmax(pred).numpy()  # If classifier activation is not softmax
print(keras.applications.imagenet_utils.decode_predictions(pred)[0])
# [('n02124075', 'Egyptian_cat', 0.9692954),
#  ('n02123045', 'tabby', 0.020203391),
#  ('n02123159', 'tiger_cat', 0.006867502),
#  ('n02127052', 'lynx', 0.00017674894),
#  ('n02123597', 'Siamese_cat', 4.9493494e-05)]

Exclude model top layers by set num_classes=0

from keras_cv_attention_models import resnest
mm = resnest.ResNest50(num_classes=0)
print(mm.output_shape)
# (None, 7, 7, 2048)

Layers

attention_layers is __init__.py only, which imports core layers defined in model architectures. Like RelativePositionalEmbedding from botnet, outlook_attention from volo.

from keras_cv_attention_models import attention_layers
aa = attention_layers.RelativePositionalEmbedding()
print(f"{aa(tf.ones([1, 4, 14, 16, 256])).shape = }")
# aa(tf.ones([1, 4, 14, 16, 256])).shape = TensorShape([1, 4, 14, 16, 14, 16])

Model surgery

model_surgery including functions used to change model parameters after built.

from keras_cv_attention_models import model_surgery
# Replace all ReLU with PReLU
mm = model_surgery.replace_ReLU(keras.applications.ResNet50(), target_activation='PReLU')

AotNet

Keras AotNet is just a ResNet / ResNetV2 like framework, that set parameters like attn_types and se_ratio and others, which is used to apply different types attention layer. Works like byoanet / byobnet from timm.

from keras_cv_attention_models import aotnet
# Mixing se and outlook and halo and mhsa and cot_attention, 21M parameters.
# 50 is just a picked number that larger than the relative `num_block`.
attn_types = [None, "outlook", ["bot", "halo"] * 50, "cot"],
se_ratio = [0.25, 0, 0, 0],
model = aotnet.AotNet50V2(attn_types=attn_types, se_ratio=se_ratio, stem_type="deep", strides=1)
model.summary()

BotNet

Keras BotNet is for PDF 2101.11605 Bottleneck Transformers for Visual Recognition.

Model	Params	Image resolution	Top1 Acc	Download
BotNet50	21M	224
BotNet101	41M	224
BotNet152	56M	224
BotNet26T	12.5M	256	79.246	botnet26t_imagenet.h5
BotNextECA26T	10.59M	256	79.270	botnext_eca26t_imagenet.h5

CMT

Keras CMT is for PDF 2107.06263 CMT: Convolutional Neural Networks Meet Vision Transformers.

Model	Params	Image resolution	Top1 Acc
CMTTiny	9.5M	160	79.2
CMTXS	15.2M	192	81.8
CMTSmall	25.1M	224	83.5
CMTBig	45.7M	256	84.5

CoaT

Keras CoaT is for PDF 2104.06399 CoaT: Co-Scale Conv-Attentional Image Transformers.

Model	Params	Image resolution	Top1 Acc	Download
CoaTLiteTiny	5.7M	224	77.5	coat_lite_tiny_imagenet.h5
CoaTLiteMini	11M	224	79.1	coat_lite_mini_imagenet.h5
CoaTLiteSmall	20M	224	81.9	coat_lite_small_imagenet.h5
CoaTTiny	5.5M	224	78.3	coat_tiny_imagenet.h5
CoaTMini	10M	224	81.0	coat_mini_imagenet.h5

CoAtNet

Keras CoAtNet is for PDF 2106.04803 CoAtNet: Marrying Convolution and Attention for All Data Sizes.

Model	Params	Image resolution	Top1 Acc
CoAtNet-0	25M	224	81.6
CoAtNet-1	42M	224	83.3
CoAtNet-2	75M	224	84.1
CoAtNet-2, ImageNet-21k pretrain	75M	224	87.1
CoAtNet-3	168M	224	84.5
CoAtNet-3, ImageNet-21k pretrain	168M	224	87.6
CoAtNet-3, ImageNet-21k pretrain	168M	512	87.9
CoAtNet-4, ImageNet-21k pretrain	275M	512	88.1
CoAtNet-4, ImageNet-21K + PT-RA-E150	275M	512	88.56

CoTNet

Keras CoTNet is for PDF 2107.12292 Contextual Transformer Networks for Visual Recognition.

Model	Params	Image resolution	FLOPs	Top1 Acc	Download
CotNet50	22.2M	224	3.3	81.3	cotnet50_224.h5
CoTNeXt50	30.1M	224	4.3	82.1
CotNetSE50D	23.1M	224	4.1	81.6	cotnet_se50d_224.h5
CotNet101	38.3M	224	6.1	82.8	cotnet101_224.h5
CoTNeXt-101	53.4M	224	8.2	83.2
CotNetSE101D	40.9M	224	8.5	83.2	cotnet_se101d_224.h5
CotNetSE152D	55.8M	224	17.0	84.0	cotnet_se152d_224.h5
CotNetSE152D	55.8M	320	26.5	84.6	cotnet_se152d_320.h5

GMLP

Keras GMLP includes implementation of PDF 2105.08050 Pay Attention to MLPs.

Model	Params	Image resolution	Top1 Acc	ImageNet
GMLPTiny16	6M	224	72.3
GMLPS16	20M	224	79.6	gmlp_s16_imagenet.h5
GMLPB16	73M	224	81.6

HaloNet

Keras HaloNet is for PDF 2103.12731 Scaling Local Self-Attention for Parameter Efficient Visual Backbones.

Model	Params	Image resolution	Top1 Acc	Download
HaloNetH0	5.5M	256	77.9
HaloNetH1	8.1M	256	79.9
HaloNetH2	9.4M	256	80.4
HaloNetH3	11.8M	320	81.9
HaloNetH4	19.1M	384	83.3
- 21k	19.1M	384	85.5
HaloNetH5	30.7M	448	84.0
HaloNetH6	43.4M	512	84.4
HaloNetH7	67.4M	600	84.9
HaloNet26T	12.5M	256	79.13	halonet26t_imagenet.h5
HaloNetSE33T	13.7M	256	80.99	halonet_se33t_imagenet.h5
HaloNextECA26T	10.7M	256	78.84	halonext_eca26t_imagenet.h5
HaloNet50T	22.7M	256	81.5 ?	halonet50t_imagenet.h5
HaloRegNetZB	11.68M	224	81.058	haloregnetz_b_imagenet.h5

LeViT

Keras LeViT is for PDF 2104.01136 LeViT: a Vision Transformer in ConvNet’s Clothing for Faster Inference.

Model	Params	Image resolution	Top1 Acc	ImageNet
LeViT128S	7.8M	224	76.6	levit128s_imagenet.h5
LeViT128	9.2M	224	78.6	levit128_imagenet.h5
LeViT192	11M	224	80.0	levit192_imagenet.h5
LeViT256	19M	224	81.6	levit256_imagenet.h5
LeViT384	39M	224	82.6	levit384_imagenet.h5

MLP mixer

Keras MLP mixer includes implementation of PDF 2105.01601 MLP-Mixer: An all-MLP Architecture for Vision.
Models Top1 Acc is Pre-trained on JFT-300M model accuray on ImageNet 1K from paper.

Model	Params	Top1 Acc	ImageNet	Imagenet21k	ImageNet SAM
MLPMixerS32	19.1M	68.70
MLPMixerS16	18.5M	73.83
MLPMixerB32	60.3M	75.53			b32_imagenet_sam.h5
MLPMixerB16	59.9M	80.00	b16_imagenet.h5	b16_imagenet21k.h5	b16_imagenet_sam.h5
MLPMixerL32	206.9M	80.67
MLPMixerL16	208.2M	84.82	l16_imagenet.h5	l16_imagenet21k.h5
- input 448	208.2M	86.78
MLPMixerH14	432.3M	86.32
- input 448	432.3M	87.94

NFNets

Keras NFNets is for PDF 2102.06171 High-Performance Large-Scale Image Recognition Without Normalization.

Model	Params	Image resolution	Top1 Acc	Download
NFNetL0	35.07M	288	82.75	nfnetl0_imagenet.h5
NFNetF0	71.5M	256	83.6	nfnetf0_imagenet.h5
NFNetF1	132.6M	320	84.7	nfnetf1_imagenet.h5
NFNetF2	193.8M	352	85.1	nfnetf2_imagenet.h5
NFNetF3	254.9M	416	85.7	nfnetf3_imagenet.h5
NFNetF4	316.1M	512	85.9	nfnetf4_imagenet.h5
NFNetF5	377.2M	544	86.0	nfnetf5_imagenet.h5
NFNetF6 SAM	438.4M	576	86.5	nfnetf6_imagenet.h5
NFNetF7	499.5M	608
ECA_NFNetL0	24.14M	288	82.58	eca_nfnetl0_imagenet.h5
ECA_NFNetL1	41.41M	320	84.01	eca_nfnetl1_imagenet.h5
ECA_NFNetL2	56.72M	384	84.70	eca_nfnetl2_imagenet.h5
ECA_NFNetL3	72.04M	448

RegNetZ

Keras RegNetZ includes implementation of Github timm/models/byobnet.py.

Model	Params	Image resolution	Top1 Acc	Download
RegNetZB	9.72M	224	79.868	regnetz_b_imagenet.h5
RegNetZC	13.46M	256	82.164	regnetz_c_imagenet.h5
RegNetZD	27.58M	256	83.422	regnetz_d_imagenet.h5

ResMLP

Keras ResMLP includes implementation of PDF 2105.03404 ResMLP: Feedforward networks for image classification with data-efficient training

Model	Params	Image resolution	Top1 Acc	ImageNet
ResMLP12	15M	224	77.8	resmlp12_imagenet.h5
ResMLP24	30M	224	80.8	resmlp24_imagenet.h5
ResMLP36	116M	224	81.1	resmlp36_imagenet.h5
ResMLP_B24	129M	224	83.6	resmlp_b24_imagenet.h5
- imagenet22k	129M	224	84.4	resmlp_b24_imagenet22k.h5

ResNeSt

Keras ResNeSt is for PDF 2004.08955 ResNeSt: Split-Attention Networks.

Model	Params	Image resolution	Top1 Acc	Download
resnest50	28M	224	81.03	resnest50.h5
resnest101	49M	256	82.83	resnest101.h5
resnest200	71M	320	83.84	resnest200.h5
resnest269	111M	416	84.54	resnest269.h5

ResNetD

Keras ResNetD includes implementation of PDF 1812.01187 Bag of Tricks for Image Classification with Convolutional Neural Networks

Model	Params	Image resolution	Top1 Acc	Download
ResNet50D	25.58M	224	80.530	resnet50d.h5
ResNet101D	44.57M	224	83.022	resnet101d.h5
ResNet152D	60.21M	224	83.680	resnet152d.h5
ResNet200D	64.69	224	83.962	resnet200d.h5

ResNetQ

Keras ResNetQ includes implementation of Github timm/models/resnet.py

Model	Params	Image resolution	Top1 Acc	Download
ResNet51Q	35.7M	224	82.36	resnet51q.h5

ResNeXt

Keras ResNeXt includes implementation of PDF 1611.05431 Aggregated Residual Transformations for Deep Neural Networks
SWSL means Semi-Weakly Supervised ResNe*t from Github facebookresearch/semi-supervised-ImageNet1K-models. Please note the CC-BY-NC 4.0 license on theses weights, non-commercial use only.

Model	Params	Image resolution	Top1 Acc	Download
ResNeXt50 (32x4d)	25M	224	79.768	resnext50_imagenet.h5
- SWSL	25M	224	82.182	resnext50_swsl.h5
ResNeXt50D (32x4d + deep)	25M	224	79.676	resnext50d_imagenet.h5
ResNeXt101 (32x4d)	42M	224	80.334	resnext101_imagenet.h5
- SWSL	42M	224	83.230	resnext101_swsl.h5
ResNeXt101W (32x8d)	89M	224	79.308	resnext101_imagenet.h5
- SWSL	89M	224	84.284	resnext101w_swsl.h5

VOLO

Keras VOLO is for PDF 2106.13112 VOLO: Vision Outlooker for Visual Recognition.

Model	Params	Image resolution	Top1 Acc	Download
volo_d1	27M	224	84.2	volo_d1_224.h5
volo_d1 ↑384	27M	384	85.2	volo_d1_384.h5
volo_d2	59M	224	85.2	volo_d2_224.h5
volo_d2 ↑384	59M	384	86.0	volo_d2_384.h5
volo_d3	86M	224	85.4	volo_d3_224.h5
volo_d3 ↑448	86M	448	86.3	volo_d3_448.h5
volo_d4	193M	224	85.7	volo_d4_224.h5
volo_d4 ↑448	193M	448	86.8	volo_d4_448.h5
volo_d5	296M	224	86.1	volo_d5_224.h5
volo_d5 ↑448	296M	448	87.0	volo_d5_448.h5
volo_d5 ↑512	296M	512	87.1	volo_d5_512.h5

Other implemented tensorflow or keras models

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keras-cv-attention-models 1.0.19

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Keras_cv_attention_models

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Usage

Basic Usage

Layers

Model surgery

AotNet

BotNet

CMT

CoaT

CoAtNet

CoTNet

GMLP

HaloNet

LeViT

MLP mixer

NFNets

RegNetZ

ResMLP

ResNeSt

ResNetD

ResNetQ

ResNeXt

VOLO

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