出典:Nicolas Carion, Francisco Massa, Gabriel Synnaeve, Nicolas Usunier, Alexander Kirillov, Sergey Zagoruyko
Facebook AI
公開URL : https://arxiv.org/abs/2005.12872
概要:Detection Transformer(DETRという)という新しいフレームワークによって,non-maximum-supressionやアンカー生成のような人手で設計する必要なく、End-to-Endで画像からぶった検出を行う手法を提案しています。物体検出を直接集合予測問題として解くためのtransformerアーキテクチャとハンガリアン法を用いて二部マッチングを行い正解と予測の組み合わせを探索しています。Attentionを物体検出に応用しただけでなく、競合手法であるFaster R-CNNと同等の精度を達成しています。
This document discusses various methods for calculating Wasserstein distance between probability distributions, including:
- Sliced Wasserstein distance, which projects distributions onto lower-dimensional spaces to enable efficient 1D optimal transport calculations.
- Max-sliced Wasserstein distance, which focuses sampling on the most informative projection directions.
- Generalized sliced Wasserstein distance, which uses more flexible projection functions than simple slicing, like the Radon transform.
- Augmented sliced Wasserstein distance, which applies a learned transformation to distributions before projecting, allowing more expressive matching between distributions.
These sliced/generalized Wasserstein distances have been used as loss functions for generative models with promising
出典:Nicolas Carion, Francisco Massa, Gabriel Synnaeve, Nicolas Usunier, Alexander Kirillov, Sergey Zagoruyko
Facebook AI
公開URL : https://arxiv.org/abs/2005.12872
概要:Detection Transformer(DETRという)という新しいフレームワークによって,non-maximum-supressionやアンカー生成のような人手で設計する必要なく、End-to-Endで画像からぶった検出を行う手法を提案しています。物体検出を直接集合予測問題として解くためのtransformerアーキテクチャとハンガリアン法を用いて二部マッチングを行い正解と予測の組み合わせを探索しています。Attentionを物体検出に応用しただけでなく、競合手法であるFaster R-CNNと同等の精度を達成しています。
This document discusses various methods for calculating Wasserstein distance between probability distributions, including:
- Sliced Wasserstein distance, which projects distributions onto lower-dimensional spaces to enable efficient 1D optimal transport calculations.
- Max-sliced Wasserstein distance, which focuses sampling on the most informative projection directions.
- Generalized sliced Wasserstein distance, which uses more flexible projection functions than simple slicing, like the Radon transform.
- Augmented sliced Wasserstein distance, which applies a learned transformation to distributions before projecting, allowing more expressive matching between distributions.
These sliced/generalized Wasserstein distances have been used as loss functions for generative models with promising
[DL輪読会]Neural Radiance Flow for 4D View Synthesis and Video Processing (NeRF...Deep Learning JP
Neural Radiance Flow (NeRFlow) is a method that extends Neural Radiance Fields (NeRF) to model dynamic scenes from video data. NeRFlow simultaneously learns two fields - a radiance field to reconstruct images like NeRF, and a flow field to model how points in space move over time using optical flow. This allows it to generate novel views from a new time point. The model is trained end-to-end by minimizing losses for color reconstruction from volume rendering and optical flow reconstruction. However, the method requires training separate models for each scene and does not generalize to unknown scenes.
研究室の輪講で使った古いスライド。物体検出の黎明期からシングルショット系までのまとめ。
Old slides used in a lab lecture. A summary of object detection from its early days to single-shot systems.
フォント不足による表示崩れがあります(筑紫A丸ゴシック、Montserratを使用)。
You Only Look One-level Featureの解説と見せかけた物体検出のよもやま話Yusuke Uchida
第7回全日本コンピュータビジョン勉強会「CVPR2021読み会」(前編)の発表資料です
https://kantocv.connpass.com/event/216701/
You Only Look One-level Featureの解説と、YOLO系の雑談や、物体検出における関連する手法等を広く説明しています
論文紹介:Grad-CAM: Visual explanations from deep networks via gradient-based loca...Kazuki Adachi
Selvaraju, Ramprasaath R., et al. "Grad-cam: Visual explanations from deep networks via gradient-based localization." The IEEE International Conference on Computer Vision (ICCV), 2017, pp. 618-626
[DL輪読会]Neural Radiance Flow for 4D View Synthesis and Video Processing (NeRF...Deep Learning JP
Neural Radiance Flow (NeRFlow) is a method that extends Neural Radiance Fields (NeRF) to model dynamic scenes from video data. NeRFlow simultaneously learns two fields - a radiance field to reconstruct images like NeRF, and a flow field to model how points in space move over time using optical flow. This allows it to generate novel views from a new time point. The model is trained end-to-end by minimizing losses for color reconstruction from volume rendering and optical flow reconstruction. However, the method requires training separate models for each scene and does not generalize to unknown scenes.
研究室の輪講で使った古いスライド。物体検出の黎明期からシングルショット系までのまとめ。
Old slides used in a lab lecture. A summary of object detection from its early days to single-shot systems.
フォント不足による表示崩れがあります(筑紫A丸ゴシック、Montserratを使用)。
You Only Look One-level Featureの解説と見せかけた物体検出のよもやま話Yusuke Uchida
第7回全日本コンピュータビジョン勉強会「CVPR2021読み会」(前編)の発表資料です
https://kantocv.connpass.com/event/216701/
You Only Look One-level Featureの解説と、YOLO系の雑談や、物体検出における関連する手法等を広く説明しています
論文紹介:Grad-CAM: Visual explanations from deep networks via gradient-based loca...Kazuki Adachi
Selvaraju, Ramprasaath R., et al. "Grad-cam: Visual explanations from deep networks via gradient-based localization." The IEEE International Conference on Computer Vision (ICCV), 2017, pp. 618-626