Search Results for author: Qianli Feng

Found 8 papers, 3 papers with code

Structural Similarity: When to Use Deep Generative Models on Imbalanced Image Dataset Augmentation

no code implementations8 Mar 2023 Chenqi Guo, Fabian Benitez-Quiroz, Qianli Feng, Aleix Martinez

Our experiments on imbalanced image dataset classification show that, the validation accuracy improvement with such re-balancing method is related to the image similarity between different classes.

Data Augmentation SSIM

Network-Free, Unsupervised Semantic Segmentation With Synthetic Images

no code implementations CVPR 2023 Qianli Feng, Raghudeep Gadde, Wentong Liao, Eduard Ramon, Aleix Martinez

We derive a method that yields highly accurate semantic segmentation maps without the use of any additional neural network, layers, manually annotated training data, or supervised training.

Segmentation Unsupervised Semantic Segmentation

When do GANs replicate? On the choice of dataset size

1 code implementation ICCV 2021 Qianli Feng, Chenqi Guo, Fabian Benitez-Quiroz, Aleix Martinez

With empirical evidence from BigGAN and StyleGAN2, on datasets CelebA, Flower and LSUN-bedroom, we show that dataset size and its complexity play an important role in GANs replication and perceptual quality of the generated images.

Near Perfect GAN Inversion

no code implementations23 Feb 2022 Qianli Feng, Viraj Shah, Raghudeep Gadde, Pietro Perona, Aleix Martinez

To edit a real photo using Generative Adversarial Networks (GANs), we need a GAN inversion algorithm to identify the latent vector that perfectly reproduces it.

Diamond in the rough: Improving image realism by traversing the GAN latent space

1 code implementation12 Apr 2021 Jeffrey Wen, Fabian Benitez-Quiroz, Qianli Feng, Aleix Martinez

Leveraging the learned structure of the latent space, we find moving in this direction corrects many image artifacts and brings the image into greater realism.

Style Transfer

Adding Knowledge to Unsupervised Algorithms for the Recognition of Intent

1 code implementation12 Nov 2020 Stuart Synakowski, Qianli Feng, Aleix Martinez

In this paper, we derive an algorithm that can infer whether the behavior of an agent in a scene is intentional or unintentional based on its 3D kinematics, using the knowledge of self-propelled motion, Newtonian motion and their relationship.

3D Object Reconstruction Object Recognition

EmotioNet Challenge: Recognition of facial expressions of emotion in the wild

no code implementations3 Mar 2017 C. Fabian Benitez-Quiroz, Ramprakash Srinivasan, Qianli Feng, Yan Wang, Aleix M. Martinez

The second track tested the algorithms' ability to recognize emotion categories in images of facial expressions.

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