Search Results for author: Amir Sadeghian

Found 15 papers, 6 papers with code

Re-imagine the Negative Prompt Algorithm: Transform 2D Diffusion into 3D, alleviate Janus problem and Beyond

1 code implementation11 Apr 2023 Mohammadreza Armandpour, Ali Sadeghian, Huangjie Zheng, Amir Sadeghian, Mingyuan Zhou

Although text-to-image diffusion models have made significant strides in generating images from text, they are sometimes more inclined to generate images like the data on which the model was trained rather than the provided text.

Text to 3D

JRMOT: A Real-Time 3D Multi-Object Tracker and a New Large-Scale Dataset

1 code implementation19 Feb 2020 Abhijeet Shenoi, Mihir Patel, JunYoung Gwak, Patrick Goebel, Amir Sadeghian, Hamid Rezatofighi, Roberto Martín-Martín, Silvio Savarese

In this work we present JRMOT, a novel 3D MOT system that integrates information from RGB images and 3D point clouds to achieve real-time, state-of-the-art tracking performance.

Autonomous Navigation Motion Planning +2

Time-Varying Interaction Estimation Using Ensemble Methods

no code implementations25 Jun 2019 Brandon Oselio, Amir Sadeghian, Silvio Savarese, Alfred Hero

Directed information (DI) is a useful tool to explore time-directed interactions in multivariate data.

Ensemble Learning

Generalized Intersection over Union: A Metric and A Loss for Bounding Box Regression

10 code implementations CVPR 2019 Hamid Rezatofighi, Nathan Tsoi, JunYoung Gwak, Amir Sadeghian, Ian Reid, Silvio Savarese

By incorporating this generalized $IoU$ ($GIoU$) as a loss into the state-of-the art object detection frameworks, we show a consistent improvement on their performance using both the standard, $IoU$ based, and new, $GIoU$ based, performance measures on popular object detection benchmarks such as PASCAL VOC and MS COCO.

Object object-detection +2

VUNet: Dynamic Scene View Synthesis for Traversability Estimation using an RGB Camera

no code implementations22 Jun 2018 Noriaki Hirose, Amir Sadeghian, Fei Xia, Roberto Martin-Martin, Silvio Savarese

We present VUNet, a novel view(VU) synthesis method for mobile robots in dynamic environments, and its application to the estimation of future traversability.

Autonomous Vehicles

SoPhie: An Attentive GAN for Predicting Paths Compliant to Social and Physical Constraints

1 code implementation CVPR 2019 Amir Sadeghian, Vineet Kosaraju, Ali Sadeghian, Noriaki Hirose, S. Hamid Rezatofighi, Silvio Savarese

Whereas, the social attention component aggregates information across the different agent interactions and extracts the most important trajectory information from the surrounding neighbors.

Ranked #4 on Trajectory Prediction on Stanford Drone (ADE (8/12) @K=5 metric)

Generative Adversarial Network Self-Driving Cars +1

GONet: A Semi-Supervised Deep Learning Approach For Traversability Estimation

no code implementations8 Mar 2018 Noriaki Hirose, Amir Sadeghian, Marynel Vázquez, Patrick Goebel, Silvio Savarese

We present semi-supervised deep learning approaches for traversability estimation from fisheye images.

CAR-Net: Clairvoyant Attentive Recurrent Network

no code implementations ECCV 2018 Amir Sadeghian, Ferdinand Legros, Maxime Voisin, Ricky Vesel, Alexandre Alahi, Silvio Savarese

We exploit two sources of information: the past motion trajectory of the agent of interest and a wide top-view image of the navigation scene.

Trajectory Forecasting

To Go or Not To Go? A Near Unsupervised Learning Approach For Robot Navigation

no code implementations16 Sep 2017 Noriaki Hirose, Amir Sadeghian, Patrick Goebel, Silvio Savarese

It is important for robots to be able to decide whether they can go through a space or not, as they navigate through a dynamic environment.

Anomaly Detection Navigate +1

Tracking The Untrackable: Learning To Track Multiple Cues with Long-Term Dependencies

no code implementations ICCV 2017 Amir Sadeghian, Alexandre Alahi, Silvio Savarese

To address this challenge, we present a structure of Recurrent Neural Networks (RNN) that jointly reasons on multiple cues over a temporal window.

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