Is this model only works well for swin backbone??

[gmk11]

I tried to change the backbone to see the performances of the model , i retrained my backbone(Resnet) with heatmap supervision on coco as said in the doc of the repository and then trained the tokenizer , and the Classifier but i get bad Precision for the final model (AP = 0.150 and AP@0.5 = 0.4) is there something i missed ? or just the model works only for swin?

[Gengzigang]

We have not tried using ResNet as a backbone. Could you provide more details on the performance of each of your three steps (heatmap, tokenizer, classifier)?

[gmk11]

I checked my code and saw that the heatmap weights weren't initilalized for my backbone, i am doing a new training of the tokenizer and the classifier right now. i got this performance for my heatmap training: Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.412 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.760

this for the tokenizer : Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.843 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.975

[gmk11]

@Gengzigang by the way if the tokenizer doesn't depend of the backbone , what will be the consequences if i use the well trained tokenizer weights pretrained with the swin backbone on my model using Resnet as backbone ?

If i well understood your paper , when we are training the tokenizer , it's the encoder , codebook and decoder weights that are updated. And when we train the classifier we use this previous pretrained decoder to decode the poses , by having a strong decoder the poses will be better recovered right? so the performances would be better

[gmk11]

@Gengzigang ???

[Gengzigang]

If you want to use ResNet as the backbone and train the classifier using a pre-trained tokenizer, there should be no problems. You can choose to directly load the backbone-agnostic tokenizer we provided (https://github.com/Gengzigang/PCT#remove-image-guidance), which has been trained without image guidance, to train your classifier.

[Gengzigang]

Regarding what you mentioned about a better decoder, our current experiments have shown that the decoder we are currently using is already sufficient. If the classification is completely accurate, the average precision (AP) can reach 99.

[gmk11]

thanks , what do you think about the results of my heatmap ? is it sufficient?

[Gengzigang]

You can directly use the ResNet backbone of Simple Baseline (https://arxiv.org/abs/1804.06208). MMPose has supported it.

[gmk11]

this is what i used... , did you have a better precision when you trained the heatmap of your models i mean (AP over 70)?

[Gengzigang]

Yes, our backbone is well-trained.

[gmk11]

thanks for your time and responses

[ll8657]

I checked my code and saw that the heatmap weights weren't initilalized for my backbone, i am doing a new training of the tokenizer and the classifier right now. i got this performance for my heatmap training: Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.412 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.760

this for the tokenizer : Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.843 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.975

Excuse me, how do you enable custom backbone network weights

[gmk11]

area

I created a backbone like the implementation of the swin backbone , and I uploaded my weight in it like when you use a resnet backbone from PyTorch , and I désactivated the initial upload weight function when I trained the heatmap and tokenizer and reactivated when I trained the classifier.

You can create for example , create a Resnet class in the same file where swin class is implemented then you can replace the backbone in the file where backbone= ‘swin’ by backbone = ‘Resnet’

hope it help

[ll8657]

area

I created a backbone like the implementation of the swin backbone , and I uploaded my weight in it like when you use a resnet backbone from PyTorch , and I désactivated the initial upload weight function when I trained the heatmap and tokenizer and reactivated when I trained the classifier.

You can create for example , create a Resnet class in the same file where swin class is implemented then you can replace the backbone in the file where backbone= ‘swin’ by backbone = ‘Resnet’

hope it help

Thanks for your warm reply, I have now replaced a custom backbone network and trained on the heat map supervision with the final accuracy AP=0.74. Since I don't see the code to import weights, if I want to train tokenizer and classifiers with this weight, I just need to modify Backbone='hmp_backbone' in the config file. Will Pytorch automatically import my heat map monitor weights

[JasOleander]

@Gengzigang Hello, could you tell me about training time with and without image guidance for tokenizer? I didn't see that in your paper. And, what is the output of decoder (integer or logits) for classifier you mentioned in figure 1?

[JasOleander]

I checked my code and saw that the heatmap weights weren't initilalized for my backbone, i am doing a new training of the tokenizer and the classifier right now. i got this performance for my heatmap training: Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.412 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.760

this for the tokenizer : Average Precision (AP) @[ IoU=0.50:0.95 | area= all | maxDets= 20 ] = 0.843 Average Precision (AP) @[ IoU=0.50 | area= all | maxDets= 20 ] = 0.975

Hello. Did you train hmp_base.py file again with pretrained 'ResNet model weights'? Or tokenizer.py file with pretrained 'ResNet Heatmap' weights?