Search Results for author: Jayakorn Vongkulbhisal

Found 10 papers, 1 papers with code

A Two-Block RNN-based Trajectory Prediction from Incomplete Trajectory

no code implementations14 Mar 2022 Ryo Fujii, Jayakorn Vongkulbhisal, Ryo Hachiuma, Hideo Saito

However, most works rely on a key assumption that each video is successfully preprocessed by detection and tracking algorithms and the complete observed trajectory is always available.

Imputation Trajectory Prediction +1

On Focal Loss for Class-Posterior Probability Estimation: A Theoretical Perspective

no code implementations CVPR 2021 Nontawat Charoenphakdee, Jayakorn Vongkulbhisal, Nuttapong Chairatanakul, Masashi Sugiyama

In this paper, we first prove that the focal loss is classification-calibrated, i. e., its minimizer surely yields the Bayes-optimal classifier and thus the use of the focal loss in classification can be theoretically justified.

Classification General Classification +3

Unifying Heterogeneous Classifiers with Distillation

1 code implementation CVPR 2019 Jayakorn Vongkulbhisal, Phongtharin Vinayavekhin, Marco Visentini-Scarzanella

In this paper, we study the problem of unifying knowledge from a set of classifiers with different architectures and target classes into a single classifier, given only a generic set of unlabelled data.

Knowledge Distillation

Discriminative Optimization: Theory and Applications to Computer Vision Problems

no code implementations13 Jul 2017 Jayakorn Vongkulbhisal, Fernando de la Torre, João P. Costeira

This approach faces two main challenges: (i) designing a cost function with a local optimum at an acceptable solution, and (ii) developing an efficient numerical method to search for one (or multiple) of these local optima.

Camera Pose Estimation Computational Efficiency +3

Discriminative Optimization: Theory and Applications to Point Cloud Registration

no code implementations CVPR 2017 Jayakorn Vongkulbhisal, Fernando de la Torre, Joao P. Costeira

This approach faces two main challenges: (1) designing a cost function with a local optimum at an acceptable solution, and (2) developing an efficient numerical method to search for one (or multiple) of these local optima.

Computational Efficiency Point Cloud Registration

Motion From Structure (MfS): Searching for 3D Objects in Cluttered Point Trajectories

no code implementations CVPR 2016 Jayakorn Vongkulbhisal, Ricardo Cabral, Fernando de la Torre, Joao P. Costeira

Object detection has been a long standing problem in computer vision, and state-of-the-art approaches rely on the use of sophisticated features and/or classifiers.

Motion Segmentation Object +2

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