in this case, the cloned networks are the U-Net encoder/middle layers, and the results of the each trainable copy are fed in each middle/decoder block.
@krea_ai
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Convolutional Architecture Encodes Condition Image in Cloned U-Net
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it is worth mentioning that the authors used a convolutional architecture to encode the condition image before feeding it within the cloned U-Net.
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Zero Convolutions Training: Sudden Convergence Phenomenon Explained
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the use of zero convolutions while training results in a funny behavior that the authors name “sudden convergence phenomenon”, where the model is suddenly able to follow the input conditions, as depicted in the following image:
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Controlling Image Structure Generation: Latest Results
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the way how this work enables us to control the structure from the images we generate is truly interesting. here are some of our favorite results so far:
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ControlNet Architecture Clones Diffusion Model Weights
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the following is a general representation of ControlNet's architecture. first, it clones the weights of a diffusion model. Then, it trains the cloned weights to control the original model with the task from the input condition.
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Zero Convolutions in ControlNet: Progressive Training Influence
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zero convolutions are 1D convolutions with weights and biases initialized to 0s. note how at the beginning of the training ControlNet will not affect the original network at all, but as it gets trained it will progressively start influencing the generation with the condition.
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ControlNet Architecture with Stable Diffusion Explained
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the following is a representation of ControlNet's architecture when used with Stable Diffusion
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Zero Convolutions Enable Progressive Control Learning in AI Models
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the goal of this architecture is to keep as much as possible all the knowledge learned by the original model. the trainable network learns how to perform the control in a progressive way thanks to the use of zero convolutions.
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ControlNet: Guide complet du fonctionnement et des applications
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what is ControlNet and how does it work?
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ControlNet: Conditioning Diffusion Models on Arbitrary Input Features
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ControlNet is a method that can be used to condition diffusion models on arbitrary input features, such as image edges, segmentation maps, or human poses.