Search Results for author: Kaustav Kundu

Found 14 papers, 3 papers with code

What to look at and where: Semantic and Spatial Refined Transformer for detecting human-object interactions

no code implementations CVPR 2022 A S M Iftekhar, Hao Chen, Kaustav Kundu, Xinyu Li, Joseph Tighe, Davide Modolo

We propose a novel one-stage Transformer-based semantic and spatial refined transformer (SSRT) to solve the Human-Object Interaction detection task, which requires to localize humans and objects, and predicts their interactions.

Human-Object Interaction Detection Object

Id-Free Person Similarity Learning

no code implementations CVPR 2022 Bing Shuai, Xinyu Li, Kaustav Kundu, Joseph Tighe

In this work, we explore training such a model by only using person box annotations, thus removing the necessity of manually labeling a training dataset with additional person identity annotation as these are expensive to collect.

Contrastive Learning Human Detection +2

Exploiting weakly supervised visual patterns to learn from partial annotations

no code implementations NeurIPS 2020 Kaustav Kundu, Joseph Tighe

Ignoring these un-annotated labels result in loss of supervisory signal which reduces the performance of the classification models.

General Classification Panoptic Segmentation

Positive-Congruent Training: Towards Regression-Free Model Updates

no code implementations CVPR 2021 Sijie Yan, Yuanjun Xiong, Kaustav Kundu, Shuo Yang, Siqi Deng, Meng Wang, Wei Xia, Stefano Soatto

Reducing inconsistencies in the behavior of different versions of an AI system can be as important in practice as reducing its overall error.

Image Classification regression

SurfConv: Bridging 3D and 2D Convolution for RGBD Images

1 code implementation CVPR 2018 Hang Chu, Wei-Chiu Ma, Kaustav Kundu, Raquel Urtasun, Sanja Fidler

On the other hand, 3D convolution wastes a large amount of memory on mostly unoccupied 3D space, which consists of only the surface visible to the sensor.

3D Semantic Segmentation

Pose Estimation for Objects with Rotational Symmetry

no code implementations13 Oct 2018 Enric Corona, Kaustav Kundu, Sanja Fidler

In particular, our aim is to infer poses for objects not seen at training time, but for which their 3D CAD models are available at test time.

Pose Estimation

Annotating Object Instances with a Polygon-RNN

2 code implementations CVPR 2017 Lluis Castrejon, Kaustav Kundu, Raquel Urtasun, Sanja Fidler

We show that our approach speeds up the annotation process by a factor of 4. 7 across all classes in Cityscapes, while achieving 78. 4% agreement in IoU with original ground-truth, matching the typical agreement between human annotators.

Object Segmentation +1

Exploiting Semantic Information and Deep Matching for Optical Flow

no code implementations6 Apr 2016 Min Bai, Wenjie Luo, Kaustav Kundu, Raquel Urtasun

We tackle the problem of estimating optical flow from a monocular camera in the context of autonomous driving.

Autonomous Driving Optical Flow Estimation

Rent3D: Floor-Plan Priors for Monocular Layout Estimation

no code implementations CVPR 2015 Chenxi Liu, Alexander G. Schwing, Kaustav Kundu, Raquel Urtasun, Sanja Fidler

What sets us apart from past work in layout estimation is the use of floor plans as a source of prior knowledge, as well as localization of each image within a bigger space (apartment).

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