Search Results for author: Rei Kawakami

Found 11 papers, 4 papers with code

Fixed-Weight Difference Target Propagation

1 code implementation19 Dec 2022 Tatsukichi Shibuya, Nakamasa Inoue, Rei Kawakami, Ikuro Sato

Learning of the feedforward and feedback networks is sufficient to make TP methods capable of training, but is having these layer-wise autoencoders a necessary condition for TP to work?

Informative Sample-Aware Proxy for Deep Metric Learning

no code implementations18 Nov 2022 Aoyu Li, Ikuro Sato, Kohta Ishikawa, Rei Kawakami, Rio Yokota

Among various supervised deep metric learning methods proxy-based approaches have achieved high retrieval accuracies.

Metric Learning Retrieval

PoF: Post-Training of Feature Extractor for Improving Generalization

1 code implementation5 Jul 2022 Ikuro Sato, Ryota Yamada, Masayuki Tanaka, Nakamasa Inoue, Rei Kawakami

We developed a training algorithm called PoF: Post-Training of Feature Extractor that updates the feature extractor part of an already-trained deep model to search a flatter minimum.

Feature Space Particle Inference for Neural Network Ensembles

1 code implementation2 Jun 2022 Shingo Yashima, Teppei Suzuki, Kohta Ishikawa, Ikuro Sato, Rei Kawakami

Ensembles of deep neural networks demonstrate improved performance over single models.

Classification-Reconstruction Learning for Open-Set Recognition

1 code implementation CVPR 2019 Ryota Yoshihashi, Wen Shao, Rei Kawakami, ShaoDi You, Makoto Iida, Takeshi Naemura

Existing open-set classifiers rely on deep networks trained in a supervised manner on known classes in the training set; this causes specialization of learned representations to known classes and makes it hard to distinguish unknowns from knowns.

Classification General Classification +2

Differentiating Objects by Motion: Joint Detection and Tracking of Small Flying Objects

no code implementations14 Sep 2017 Ryota Yoshihashi, Tu Tuan Trinh, Rei Kawakami, ShaoDi You, Makoto Iida, Takeshi Naemura

While generic object detection has achieved large improvements with rich feature hierarchies from deep nets, detecting small objects with poor visual cues remains challenging.

Object object-detection +2

Waterdrop Stereo

no code implementations4 Apr 2016 Shaodi You, Robby T. Tan, Rei Kawakami, Yasuhiro Mukaigawa, Katsushi Ikeuchi

(2) The imagery inside a water-drop is determined by the water-drop 3D shape and total reflection at the boundary.

Depth Estimation

Adherent Raindrop Detection and Removal in Video

no code implementations CVPR 2013 Shaodi You, Robby T. Tan, Rei Kawakami, Katsushi Ikeuchi

First, it detects raindrops based on the motion and the intensity temporal derivatives of the input video.

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