Search Results for author: Mai Nishimura

Found 10 papers, 3 papers with code

Characterization of the Autonomic Nervous System Activity in Females Classified According to Mood Scores During the Follicular Phase

no code implementations8 May 2024 Makiko Aok, Mai Nishimura, Masato Suzuki, Eiriko Terasawa, Hisayo Okayama

This study aimed to classify participants based on their scores on a mood questionnaire during the follicular phase and to evaluate their autonomic nervous system (ANS) activity using a simple device that measures pulse waves from the earlobe.

TransPoser: Transformer as an Optimizer for Joint Object Shape and Pose Estimation

no code implementations23 Mar 2023 Yuta Yoshitake, Mai Nishimura, Shohei Nobuhara, Ko Nishino

We propose a novel method for joint estimation of shape and pose of rigid objects from their sequentially observed RGB-D images.

Pose Estimation

InCrowdFormer: On-Ground Pedestrian World Model From Egocentric Views

no code implementations16 Mar 2023 Mai Nishimura, Shohei Nobuhara, Ko Nishino

We introduce an on-ground Pedestrian World Model, a computational model that can predict how pedestrians move around an observer in the crowd on the ground plane, but from just the egocentric-views of the observer.

Decoder

ViewBirdiformer: Learning to recover ground-plane crowd trajectories and ego-motion from a single ego-centric view

no code implementations12 Oct 2022 Mai Nishimura, Shohei Nobuhara, Ko Nishino

We introduce a novel learning-based method for view birdification, the task of recovering ground-plane trajectories of pedestrians of a crowd and their observer in the same crowd just from the observed ego-centric video.

Robot Navigation

CTRMs: Learning to Construct Cooperative Timed Roadmaps for Multi-agent Path Planning in Continuous Spaces

1 code implementation24 Jan 2022 Keisuke Okumura, Ryo Yonetani, Mai Nishimura, Asako Kanezaki

Multi-agent path planning (MAPP) in continuous spaces is a challenging problem with significant practical importance.

View Birdification in the Crowd: Ground-Plane Localization from Perceived Movements

no code implementations9 Nov 2021 Mai Nishimura, Shohei Nobuhara, Ko Nishino

We introduce view birdification, the problem of recovering ground-plane movements of people in a crowd from an ego-centric video captured from an observer (e. g., a person or a vehicle) also moving in the crowd.

Path Planning using Neural A* Search

4 code implementations16 Sep 2020 Ryo Yonetani, Tatsunori Taniai, Mohammadamin Barekatain, Mai Nishimura, Asako Kanezaki

We present Neural A*, a novel data-driven search method for path planning problems.

Crowd Density Forecasting by Modeling Patch-based Dynamics

no code implementations22 Nov 2019 Hiroaki Minoura, Ryo Yonetani, Mai Nishimura, Yoshitaka Ushiku

To address this task, we have developed the patch-based density forecasting network (PDFN), which enables forecasting over a sequence of crowd density maps describing how crowded each location is in each video frame.

Autonomous Driving

A Linear Generalized Camera Calibration From Three Intersecting Reference Planes

no code implementations ICCV 2015 Mai Nishimura, Shohei Nobuhara, Takashi Matsuyama, Shinya Shimizu, Kensaku Fujii

This paper presents a new generalized (or ray-pixel, raxel) camera calibration algorithm for camera systems involving distortions by unknown refraction and reflection processes.

Camera Calibration

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