Search Results for author: Katsushi Ikeuchi

Found 15 papers, 2 papers with code

Object affordance as a guide for grasp-type recognition

1 code implementation27 Feb 2021 Naoki Wake, Daichi Saito, Kazuhiro Sasabuchi, Hideki Koike, Katsushi Ikeuchi

To this end, we created datasets of first-person grasping-hand images labeled with grasp types and object names, and tested a recognition pipeline leveraging object affordance.

Mixed Reality

Understanding Action Sequences based on Video Captioning for Learning-from-Observation

no code implementations9 Dec 2020 Iori Yanokura, Naoki Wake, Kazuhiro Sasabuchi, Katsushi Ikeuchi, Masayuki Inaba

We propose a Learning-from-Observation framework that splits and understands a video of a human demonstration with verbal instructions to extract accurate action sequences.

Video Captioning Video Understanding

Learning-from-Observation Framework: One-Shot Robot Teaching for Grasp-Manipulation-Release Household Operations

no code implementations4 Aug 2020 Naoki Wake, Riku Arakawa, Iori Yanokura, Takuya Kiyokawa, Kazuhiro Sasabuchi, Jun Takamatsu, Katsushi Ikeuchi

In the context of one-shot robot teaching, the contributions of the paper are: 1) to propose a framework that 1) covers various tasks in grasp-manipulation-release class household operations and 2) mimics human postures during the operations.

Robotics Human-Computer Interaction

Representing a Partially Observed Non-Rigid 3D Human Using Eigen-Texture and Eigen-Deformation

no code implementations7 Jul 2018 Ryosuke Kimura, Akihiko Sayo, Fabian Lorenzo Dayrit, Yuta Nakashima, Hiroshi Kawasaki, Ambrosio Blanco, Katsushi Ikeuchi

For full-body reconstruction with loose clothes, we propose to use lower dimensional embeddings of texture and deformation referred to as eigen-texturing and eigen-deformation, to reproduce views of even unobserved surfaces.

Offline and Online calibration of Mobile Robot and SLAM Device for Navigation

1 code implementation13 Apr 2018 Ryoichi Ishikawa, Takeshi Oishi, Katsushi Ikeuchi

In the experiments, we confirm the parameters obtained by two types of offline calibration according to the degree of freedom of robot movement and validate the effectiveness of online correction method by plotting localized position error during robot's intense movement.

Mixed Reality Robot Navigation

Radiometric Calibration From Faces in Images

no code implementations CVPR 2017 Chen Li, Stephen Lin, Kun Zhou, Katsushi Ikeuchi

We present a method for radiometric calibration of cameras from a single image that contains a human face.

Specular Highlight Removal in Facial Images

no code implementations CVPR 2017 Chen Li, Stephen Lin, Kun Zhou, Katsushi Ikeuchi

An important practical feature of the proposed method is that the skin color model is utilized in a way that does not require color calibration of the camera.

Multiview Rectification of Folded Documents

no code implementations1 Jun 2016 Shaodi You, Yasuyuki Matsushita, Sudipta Sinha, Yusuke Bou, Katsushi Ikeuchi

Digitally unwrapping images of paper sheets is crucial for accurate document scanning and text recognition.

3D Reconstruction

Reconstructing Shapes and Appearances of Thin Film Objects Using RGB Images

no code implementations CVPR 2016 Yoshie Kobayashi, Tetsuro Morimoto, Imari Sato, Yasuhiro Mukaigawa, Takao Tomono, Katsushi Ikeuchi

First, we narrow down candidates of zenith angle by degree of polarization and determine it by the intensity of thin film which increases monotonically along the zenith angle.

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

Robust 3D Features for Matching between Distorted Range Scans Captured by Moving Systems

no code implementations CVPR 2014 Xiangqi Huang, Bo Zheng, Takeshi Masuda, Katsushi Ikeuchi

Our feature description is designed as two steps: 1) we normalize the detected local regions to canonical shapes for robust matching; 2) we encode each key point with multiple vectors at different Morse function values.

3D Reconstruction

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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