Search Results for author: Karthik Ramani

Found 16 papers, 4 papers with code

A Large-scale Annotated Mechanical Components Benchmark for Classification and Retrieval Tasks with Deep Neural Networks

1 code implementation ECCV 2020 Sangpil Kim, Hyung-gun Chi, Xiao Hu, Qi-Xing Huang, Karthik Ramani

We introduce a large-scale annotated mechanical components benchmark for classification and retrieval tasks named MechanicalComponents Benchmark (MCB): a large-scale dataset of 3D objects of mechanical components.

Retrieval

InfoGCN++: Learning Representation by Predicting the Future for Online Human Skeleton-based Action Recognition

2 code implementations16 Oct 2023 Seunggeun Chi, Hyung-gun Chi, QiXing Huang, Karthik Ramani

To overcome this barrier, we introduce InfoGCN++, an innovative extension of InfoGCN, explicitly developed for online skeleton-based action recognition.

Action Recognition Skeleton Based Action Recognition

AdamsFormer for Spatial Action Localization in the Future

no code implementations CVPR 2023 Hyung-gun Chi, Kwonjoon Lee, Nakul Agarwal, Yi Xu, Karthik Ramani, Chiho Choi

SALF is challenging because it requires understanding the underlying physics of video observations to predict future action locations accurately.

Action Localization

InfoGCN: Representation Learning for Human Skeleton-Based Action Recognition

1 code implementation CVPR 2022 Hyung-gun Chi, Myoung Hoon Ha, Seunggeun Chi, Sang Wan Lee, QiXing Huang, Karthik Ramani

Human skeleton-based action recognition offers a valuable means to understand the intricacies of human behavior because it can handle the complex relationships between physical constraints and intention.

Action Recognition Representation Learning +1

RitzNet: A Deep Neural Network Method for Linear Stress Problems

no code implementations29 Sep 2021 Min Liu, Zhiqiang Cai, Karthik Ramani

This paper presents RitzNet, an unsupervised learning method which takes any point in the computation domain as input, and learns a neural network model to output its corresponding function value satisfying the underlying governing PDEs.

Egocentric View Hand Action Recognition by Leveraging Hand Surface and Hand Grasp Type

no code implementations8 Sep 2021 Sangpil Kim, Jihyun Bae, Hyunggun Chi, Sunghee Hong, Byoung Soo Koh, Karthik Ramani

We introduce a multi-stage framework that uses mean curvature on a hand surface and focuses on learning interaction between hand and object by analyzing hand grasp type for hand action recognition in egocentric videos.

Action Recognition Object +1

DAR-Net: Dynamic Aggregation Network for Semantic Scene Segmentation

no code implementations28 Jul 2019 Zongyue Zhao, Min Liu, Karthik Ramani

Traditional grid/neighbor-based static pooling has become a constraint for point cloud geometry analysis.

Scene Segmentation

Deep Learning 3D Shapes Using Alt-az Anisotropic 2-Sphere Convolution

no code implementations ICLR 2019 Min Liu, Fupin Yao, Chiho Choi, Sinha Ayan, Karthik Ramani

The ground-breaking performance obtained by deep convolutional neural networks (CNNs) for image processing tasks is inspiring research efforts attempting to extend it for 3D geometric tasks.

Retrieval

Latent Transformations for Object View Points Synthesis

no code implementations12 Jul 2018 Sangpil Kim, Nick Winovich, Guang Lin, Karthik Ramani

We propose a fully-convolutional conditional generative model, the latent transformation neural network (LTNN), capable of view synthesis using a light-weight neural network suited for real-time applications.

Object

3D Object Classification via Spherical Projections

no code implementations12 Dec 2017 Zhangjie Cao, Qi-Xing Huang, Karthik Ramani

Our main idea is to project a 3D object onto a spherical domain centered around its barycenter and develop neural network to classify the spherical projection.

3D Object Classification Classification +2

Learning Hand Articulations by Hallucinating Heat Distribution

no code implementations ICCV 2017 Chiho Choi, Sangpil Kim, Karthik Ramani

As an additional modality to depth data, we present a function of geometric properties on the surface of the hand described by heat diffusion.

Descriptive Hallucination +1

Deconvolving Feedback Loops in Recommender Systems

no code implementations NeurIPS 2016 Ayan Sinha, David F. Gleich, Karthik Ramani

Collaborative filtering is a popular technique to infer users' preferences on new content based on the collective information of all users preferences.

Collaborative Filtering Recommendation Systems

DeepHand: Robust Hand Pose Estimation by Completing a Matrix Imputed With Deep Features

no code implementations CVPR 2016 Ayan Sinha, Chiho Choi, Karthik Ramani

Our matrix completion algorithm uses these 'spatio-temporal' activation features and the corresponding known pose parameter values to to estimate the unknown pose parameters of the input feature vector.

Hand Pose Estimation Matrix Completion

A Collaborative Filtering Approach to Real-Time Hand Pose Estimation

no code implementations ICCV 2015 Chiho Choi, Ayan Sinha, Joon Hee Choi, Sujin Jang, Karthik Ramani

Specifically, we recast the hand pose estimation problem as the cold-start problem for a new user with unknown item ratings in a recommender system.

Collaborative Filtering Hand Pose Estimation +1

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