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.
1 code implementation • 4 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.
1 code implementation • CVPR 2021 • Peiyun Hu, Aaron Huang, John Dolan, David Held, Deva Ramanan
Finally, we propose future freespace as an additional source of annotation-free supervision.
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.
1 code implementation • 12 Dec 2019 • Gengshan Yang, Peiyun Hu, Deva Ramanan
Such approaches cannot diagnose when failures might occur.
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.
no code implementations • 10 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.
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).
no code implementations • 8 Aug 2017 • Manuel Günther, Peiyun Hu, Christian Herrmann, Chi Ho Chan, Min Jiang, Shufan Yang, Akshay Raj Dhamija, Deva Ramanan, Jürgen Beyerer, Josef Kittler, Mohamad Al Jazaery, Mohammad Iqbal Nouyed, Guodong Guo, Cezary Stankiewicz, Terrance E. Boult
Face detection and recognition benchmarks have shifted toward more difficult environments.
no code implementations • 22 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.
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.
Ranked #25 on Face Detection on WIDER Face (Medium)
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).
Ranked #40 on Pose Estimation on MPII Human Pose