Search Results for author: Peiyun Hu

Found 12 papers, 8 papers with code

Point Cloud Forecasting as a Proxy for 4D Occupancy Forecasting

1 code implementation CVPR 2023 Tarasha Khurana, Peiyun Hu, David Held, Deva Ramanan

One promising self-supervised task is 3D point cloud forecasting from unannotated LiDAR sequences.

Motion Planning

Differentiable Raycasting for Self-supervised Occupancy Forecasting

1 code implementation4 Oct 2022 Tarasha Khurana, Peiyun Hu, Achal Dave, Jason Ziglar, David Held, Deva Ramanan

Self-supervised representations proposed for large-scale planning, such as ego-centric freespace, confound these two motions, making the representation difficult to use for downstream motion planners.

Autonomous Driving Motion Planning +1

Active Perception using Light Curtains for Autonomous Driving

no code implementations ECCV 2020 Siddharth Ancha, Yaadhav Raaj, Peiyun Hu, Srinivasa G. Narasimhan, David Held

Most real-world 3D sensors such as LiDARs perform fixed scans of the entire environment, while being decoupled from the recognition system that processes the sensor data.

3D Object Recognition Autonomous Driving

What You See is What You Get: Exploiting Visibility for 3D Object Detection

1 code implementation CVPR 2020 Peiyun Hu, Jason Ziglar, David Held, Deva Ramanan

On the NuScenes 3D detection benchmark, we show that, by adding an additional stream for visibility input, we can significantly improve the overall detection accuracy of a state-of-the-art 3D detector.

3D Object Detection Data Augmentation +1

Learning to Optimally Segment Point Clouds

no code implementations10 Dec 2019 Peiyun Hu, David Held, Deva Ramanan

We prove that if we score a segmentation by the worst objectness among its individual segments, there is an efficient algorithm that finds the optimal worst-case segmentation among an exponentially large number of candidate segmentations.

Instance Segmentation Segmentation +1

Active Learning with Partial Feedback

1 code implementation ICLR 2019 Peiyun Hu, Zachary C. Lipton, Anima Anandkumar, Deva Ramanan

While many active learning papers assume that the learner can simply ask for a label and receive it, real annotation often presents a mismatch between the form of a label (say, one among many classes), and the form of an annotation (typically yes/no binary feedback).

Active Learning

Comparing Apples and Oranges: Off-Road Pedestrian Detection on the NREC Agricultural Person-Detection Dataset

no code implementations22 Jul 2017 Zachary Pezzementi, Trenton Tabor, Peiyun Hu, Jonathan K. Chang, Deva Ramanan, Carl Wellington, Benzun P. Wisely Babu, Herman Herman

Person detection from vehicles has made rapid progress recently with the advent of multiple highquality datasets of urban and highway driving, yet no large-scale benchmark is available for the same problem in off-road or agricultural environments.

Human Detection Pedestrian Detection

Finding Tiny Faces

20 code implementations CVPR 2017 Peiyun Hu, Deva Ramanan

We explore three aspects of the problem in the context of finding small faces: the role of scale invariance, image resolution, and contextual reasoning.

Face Detection Object Recognition

Bottom-Up and Top-Down Reasoning with Hierarchical Rectified Gaussians

1 code implementation CVPR 2016 Peiyun Hu, Deva Ramanan

We show that RGs can be optimized with a quadratic program (QP), that can in turn be optimized with a recurrent neural network (with rectified linear units).

Pose Estimation

Cannot find the paper you are looking for? You can Submit a new open access paper.