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We present a visual localization system that learns to estimate camera poses in the real world with the help of synthetic data. Despite significant progress in recent years, most learning-based approaches to visual localization target at a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Qi Yan , Jianhao Zheng , Simon Reding , Shanci Li , Iordan Doytchinov

This paper introduces key machine learning operations that allow the realization of robust, joint 6D pose estimation of multiple instances of objects either densely packed or in unstructured piles from RGB-D data. The first objective is to…

Robotics · Computer Science 2019-10-14 Chaitanya Mitash , Bowen Wen , Kostas Bekris , Abdeslam Boularias

Fine localization in autonomous driving platforms is a task of broad interest, receiving much attention in recent years. Some localization algorithms use the Euclidean distance as a similarity measure between the local image acquired by a…

Signal Processing · Electrical Eng. & Systems 2020-02-12 Samuel Todd Flanagan , Drupad K. Khublani , Jean-Francois Chamberland , Siddharth Agarwal , Ankit Vora

Wireless signal strength based localization can enable robust localization for robots using inexpensive sensors. For this, a location-to-signal-strength map has to be learned for each access point in the environment. Due to the ubiquity of…

Signal Processing · Electrical Eng. & Systems 2020-10-30 Renato Miyagusuku , Koichi Ozaki

In the last few years, the artifact patterns in fake images synthesized by different generative models have been inconsistent, leading to the failure of previous research that relied on spotting subtle differences between real and fake. In…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Ziyou Liang , Weifeng Liu , Run Wang , Mengjie Wu , Boheng Li , Yuyang Zhang , Lina Wang , Xinyi Yang

Detection of objects in cluttered indoor environments is one of the key enabling functionalities for service robots. The best performing object detection approaches in computer vision exploit deep Convolutional Neural Networks (CNN) to…

Computer Vision and Pattern Recognition · Computer Science 2017-09-11 Georgios Georgakis , Arsalan Mousavian , Alexander C. Berg , Jana Kosecka

Visual localization techniques rely upon some underlying scene representation to localize against. These representations can be explicit such as 3D SFM map or implicit, such as a neural network that learns to encode the scene. The former…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Maxime Pietrantoni , Gabriela Csurka , Martin Humenberger , Torsten Sattler

Modern cameras with large apertures often suffer from a shallow depth of field, resulting in blurry images of objects outside the focal plane. This limitation is particularly problematic for fixed-focus cameras, such as those used in smart…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Xinge Yang , Chuong Nguyen , Wenbin Wang , Kaizhang Kang , Wolfgang Heidrich , Xiaoxing Li

Due to the costliness of labelled data in real-world applications, semi-supervised object detectors, underpinned by pseudo labelling, are appealing. However, handling confusing samples is nontrivial: discarding valuable confusing samples…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Changrui Chen , Kurt Debattista , Jungong Han

A major challenges of deep learning (DL) is the necessity to collect huge amounts of training data. Often, the lack of a sufficiently large dataset discourages the use of DL in certain applications. Typically, acquiring the required amounts…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Andoni Cortés , Clemente Rodríguez , Gorka Velez , Javier Barandiarán , Marcos Nieto

We present an approach to synthesize highly photorealistic images of 3D object models, which we use to train a convolutional neural network for detecting the objects in real images. The proposed approach has three key ingredients: (1) 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-02-12 Tomas Hodan , Vibhav Vineet , Ran Gal , Emanuel Shalev , Jon Hanzelka , Treb Connell , Pedro Urbina , Sudipta N. Sinha , Brian Guenter

Deep learning has rapidly transformed the state of the art algorithms used to address a variety of problems in computer vision and robotics. These breakthroughs have relied upon massive amounts of human annotated training data. This time…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Matthew Johnson-Roberson , Charles Barto , Rounak Mehta , Sharath Nittur Sridhar , Karl Rosaen , Ram Vasudevan

We propose a self-supervised training approach for learning view-invariant dense visual descriptors using image augmentations. Unlike existing works, which often require complex datasets, such as registered RGBD sequences, we train on an…

While deep learning has had significant successes in computer vision thanks to the abundance of visual data, collecting sufficiently large real-world datasets for robot learning can be costly. To increase the practicality of these…

Robotics · Computer Science 2017-12-20 Fangyi Zhang , Jürgen Leitner , Michael Milford , Peter Corke

Various approaches have been proposed to learn visuo-motor policies for real-world robotic applications. One solution is first learning in simulation then transferring to the real world. In the transfer, most existing approaches need…

Robotics · Computer Science 2018-06-01 Fangyi Zhang , Jürgen Leitner , Zongyuan Ge , Michael Milford , Peter Corke

Current state-of-the-art 6d pose estimation is too compute intensive to be deployed on edge devices, such as Microsoft HoloLens (2) or Apple iPad, both used for an increasing number of augmented reality applications. The quality of AR is…

Computer Vision and Pattern Recognition · Computer Science 2024-02-08 Thomas Pöllabauer , Fabian Rücker , Andreas Franek , Felix Gorschlüter

Estimation of human shape and pose from a single image is a challenging task. It is an even more difficult problem to map the identified human shape onto a 3D human model. Existing methods map manually labelled human pixels in real 2D…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Mithun Lal , Anthony Paproki , Nariman Habili , Lars Petersson , Olivier Salvado , Clinton Fookes

Existing architectures for imitation learning using image-to-action policy networks perform poorly when presented with an input image containing multiple instances of the object of interest, especially when the number of expert…

Robotics · Computer Science 2021-01-05 Sagar Gubbi Venkatesh , Raviteja Upadrashta , Shishir Kolathaya , Bharadwaj Amrutur

Promising performance has been achieved for visual perception on the point cloud. However, the current methods typically rely on labour-extensive annotations on the scene scans. In this paper, we explore how synthetic models alleviate the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Runnan Chen , Xinge Zhu , Nenglun Chen , Dawei Wang , Wei Li , Yuexin Ma , Ruigang Yang , Wenping Wang

Existing methods for enhancing dark images captured in a very low-light environment assume that the intensity level of the optimal output image is known and already included in the training set. However, this assumption often does not hold,…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Evgeny Hershkovitch Neiterman , Michael Klyuchka , Gil Ben-Artzi