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deepsketchhashing's Introduction

DeepSketchHashing

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This is the repository for reproducing some key results for our paper

to be presented on CVPR 2017 spotlight section. This work focuses on fast sketch-based image retrieval (SBIR) using binary codes.

Prerequisites

To produce the binary codes described in the paper, one needs to install Caffe beforehand.

The mid-level Sketch-Token representation is required for training the model. The codes can be found here. Please refer to the following papers for more details.

Models

We provide several pretrained models on two datasets with their respective deploy files. You may try to use any of these models to produce hash code for image-sketch matching.

Sketchy Dataset (Extended)

  • 64 bits
  • 128 bits
  • (UPDATED 4 AUG 2017!)The extra image data mentioned in the paper can be found here (NEW). The previous uploaded image data are wrong (apologize for this).
  • 64 bits
  • 128 bits
  • (UPDATED 21 AUG 2017!)The images of TU for our experiments can be found here.

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deepsketchhashing's Issues

producing hash codes

Hi,
The output of your deploy files are float arrays of different sizes (64, 128...). Is there a specific method you used to convert them to binary hash codes? Should I just split the values at zero, or is there some other optimal threshold?

training_code

Hi

Thank you for this wonderful paper.
Is it possible to release the training code for the algorithm ?
I wanted to use it to train for my own dataset.

Also is there any plans to release the code of this paper in tensorflow or pytorch ?

Thanks
Devraj

Preprocessing the image

Hi,
Could you please include the details of how you pre-processed the image input? Specifically, the scale of image and sketch input, and whether mean subtraction was used. Thanks.

datasets permission problem

Since the dataset links you provided on github requires permission, I would like to know if you could send me the new links or permission (my email: [email protected]). I will be appreciated for your reply as soon as possible, thank you very much!

Question about how SaN is used for SBIR

Hi, thanks for sharing the deployed model. I have read your paper Deep Sketch Hashing: Fast Free-hand Sketch-Based Image Retrieval. I'm wondering how SaN network is used for SBIR. SaN is originally designed for sketch classification and produces sketch features, but image features are not available for retrieval. Could you please explain my confusion? Thank you.

Mean of the sketches

Hi, Can you please clarify about mean of sketches?
Did you use the training set to create the mean per pixel for the entire training set like alexnet or mean intensity per sketch is used

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