Book ChapterDOI
Jointly Optimizing 3D Model Fitting and Fine-Grained Classification
Yen-Liang Lin,Vlad I. Morariu,Winston H. Hsu,Larry S. Davis +3 more
- pp 466-480
TLDR
This work proposes to optimize 3D model fitting and fine-grained classification jointly, demonstrating the method outperforms several state-of-the-art approaches and conducting a series of analyses to explore the dependence between fine-Grained classification performance and 3D models.Abstract:
3D object modeling and fine-grained classification are often treated as separate tasks. We propose to optimize 3D model fitting and fine-grained classification jointly. Detailed 3D object representations encode more information (e.g., precise part locations and viewpoint) than traditional 2D-based approaches, and can therefore improve fine-grained classification performance. Meanwhile, the predicted class label can also improve 3D model fitting accuracy, e.g., by providing more detailed class-specific shape models. We evaluate our method on a new fine-grained 3D car dataset (FG3DCar), demonstrating our method outperforms several state-of-the-art approaches. Furthermore, we also conduct a series of analyses to explore the dependence between fine-grained classification performance and 3D models.read more
Citations
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Proceedings ArticleDOI
Deep Relative Distance Learning: Tell the Difference between Similar Vehicles
TL;DR: A Deep Relative Distance Learning (DRDL) method is proposed which exploits a two-branch deep convolutional network to project raw vehicle images into an Euclidean space where distance can be directly used to measure the similarity of arbitrary two vehicles.
Proceedings ArticleDOI
A large-scale car dataset for fine-grained categorization and verification
TL;DR: This paper presents an on-going effort in collecting a large-scale dataset, “CompCars”, that covers not only different car views, but also their different internal and external parts, and rich attributes, and demonstrates a few important applications exploiting the dataset.
Proceedings ArticleDOI
The iNaturalist Species Classification and Detection Dataset
Grant Van Horn,Oisin Mac Aodha,Yang Song,Yin Cui,Chen Sun,Alex Shepard,Hartwig Adam,Pietro Perona,Serge Belongie +8 more
TL;DR: The iNaturalist dataset as discussed by the authors contains 859,000 images from over 5,000 different species of plants and animals captured in a wide variety of situations from all over the world.
Proceedings ArticleDOI
Fine-grained recognition without part annotations
TL;DR: This work proposes a method for fine-grained recognition that uses no part annotations, based on generating parts using co-segmentation and alignment, which is combined in a discriminative mixture.
Posted Content
A Large-Scale Car Dataset for Fine-Grained Categorization and Verification
TL;DR: In this article, the authors provide preliminary experiment results for fine-grained classification on the surveillance data of CompCars, and the train/test splits are provided in the updated dataset.
References
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