This image showcases an academic poster titled "Exact Fusion via Feature Distribution Matching for Few-shot Image Generation" presented by researchers from the Research Center of SMWH/CV-Co-Design Tech. and App., East China Normal University. The poster, number 348, is displayed in a conference setting, most likely the CVPR (Conference on Computer Vision and Pattern Recognition) given the top-right logo. 

The main sections of the poster include:

1. **Title and Authors**: The title is prominently displayed along with the names of the contributing researchers.
2. **Background**: An introductory section outlining the problem definition, main challenges, and motivation for the research.
3. **Methodology**: Detailed diagrams explaining the proposed model and algorithms, such as the Feature Distribution Matching (FDM) and the Variational Feature Learning (VFLM) methods.
4. **Contributions**: A summary of the novel contributions made by the research.
5. **Experiments**: Results from empirical studies, showcasing data and visual comparisons to highlight the effectiveness of the proposed methods.
6. **References and Acknowledgements**: Citations to related work and acknowledgements of supporting institutions, including the Natural Science Foundation of China.

The poster includes various charts, tables, and images that depict experimental results, data analysis, and the structure of the proposed models, giving a comprehensive overview of their research findings and contributions to the field of few-shot image generation.
Text transcribed from the image:
CHINA
0
软件工程学院
Problem Definition
Exact Fusion via Feature Distribution Matching for Few-shot Image Generation
Background
Yingbo Zhou, Yutong Ye, Pengyu Zhang, Xian Wei, Mingsong Chen*
MoE Eng. Research Center of SW/HW Co-Design Tech. and App., East China Normal University
Given & (e, 3 or 5) images sampled of the unseen category, using the model trained with seen data to
generate realistic and diverse images for this category.
Main Challenges
• How to train one model with limited data for good performance
- How to transfer the knowledge of seen data to unseen categories with a few available images;
- How to generate more new realistic and diverse images for downstream classification tasks.
Related Work
Optimization-based methods employing meta-learning optimization algorithm to update model parameters,
- Transformation-based method: retraining the transformed features obtained by the pre-trained model to
generate new images for unseen categories:
- Fusion-based method using episodic training style to fuse different features with the same label and
making the model generalize the transfer ability to unseen categories in the end-to-end leaming process.
Training Phase
Ses Generation
Contributions
We propose a novel fusion-based framework called F2DGAN, which is the first attempt to fuse differant
features with variational feature leaming and feature distribution matching for few-shot image generation
➤ We design a feature distribution matching module with an image-matching reconstruction loss, which can
fuse consistent semantics exactly with histogram matching
We devise a variational feature learning module with a feature reconstruction loss, which further
guarantees the diversity of fused deep semantics in feature space.
Methodology
FOSEM
SFLM
G
Experimental Settings
Experiments
Datasets Flowers, Animal Faces and VGGFaces
Metrics: FID and LPIPS Pardierity
Saw Category
43.2
Encoder
Eames Category
Inference Phase
Generator
Faxed Fatture
P. Fate Extrateste Decoller
Variational Feature Patios Matching Fai
Feature Distribution Matching Module (FDMM)
a) Empirical Cumulative Distribution Function: F(x)=1
b) Histogram Matching: M = +7-((-) denotes the stop-gradient operation
c) Fusion with Feature Distribution Matching F + Min
CVPR
SEATTLE, WA JUNE 12,2004
Empirical Study
Oview Framework of FSC
Motivation
1. Optimization-based methods: poor generation quality and diversity,
2. Transformation-based methods: complex image transformation with unstable training process;
3. Fusion-based methods: existing fusion-based methods ignore the entanglement and absence of semantics,
resulting in fuzzy details and poor diversity of the generation
4. Observation: one can clearly cbserve that different images of the same class have different feature
distributions, and the accumulation of feature values of different images can better reflect the feature
distribution of their categories
fantages with the same
and
Sand Cam different future distributions from one single
Edd ever dierbution of tow image and all the images in the same category matters
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友友一
A on future debution matching note. We turn and do to the gr
the sorting algoritmutin
Variational Feature Learning Module (VFLM)
a) Variational Evidence Lower Bound: ELBO Eogp(siz))-D((z)\\(z))
b) Fusion with Variational Features: F = 2 + (s) + -
=(4) 0(-) is the MSE loss.
++
■Optimization Objective
a) Image-matching Reconstruction Loss:
b) Feature Reconstruction Loss:
d) The discriminator optimization function: L= +
c) The generator optimization function: L=++++
pettive generation ty
dusty on the datase
Generation as data augmentation
achieves SOTA accuracy
doenstaan classificat
To highlight the effectiveness of our method, we disable the coresponding components for ablation studies
In addition, exploring the generation performance under different -shot image generation sutings manifes
F2DGAN has good generalization ability.
Acknowledgements
This wat was supported by the Natural Science Foundation of China 22721) and Digitas Silk Pad Shunga t
Jon Lab of Trustworthy Inteligent Satwa
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