Search Results for author: Dan Raviv

Found 23 papers, 7 papers with code

Temporal Super-Resolution using Multi-Channel Illumination Source

no code implementations25 Nov 2022 Khen Cohen, Dan Raviv, David Mendlovic

In this work we try to increase the temporal resolution beyond the Nyquist frequency, which is limited by the sampling rate of the sensor.

Motion Estimation Object +1

Illumination-Based Color Reconstruction for the Dynamic Vision Sensor

no code implementations12 Nov 2022 Khen Cohen, Omer Hershko, Homer Levy, David Mendlovic, Dan Raviv

This work demonstrates a novel, state of the art method to reconstruct colored images via the Dynamic Vision Sensor (DVS).

Deep Confidence Guided Distance for 3D Partial Shape Registration

no code implementations27 Jan 2022 Dvir Ginzburg, Dan Raviv

We present a novel non-iterative learnable method for partial-to-partial 3D shape registration.

DPC: Unsupervised Deep Point Correspondence via Cross and Self Construction

1 code implementation16 Oct 2021 Itai Lang, Dvir Ginzburg, Shai Avidan, Dan Raviv

We present a new method for real-time non-rigid dense correspondence between point clouds based on structured shape construction.

3D Dense Shape Correspondence

Deep Weighted Consensus: Dense correspondence confidence maps for 3D shape registration

no code implementations6 May 2021 Dvir Ginzburg, Dan Raviv

We present a new paradigm for rigid alignment between point clouds based on learnable weighted consensus which is robust to noise as well as the full spectrum of the rotation group.

Occlusion Guided Self-supervised Scene Flow Estimation on 3D Point Clouds

1 code implementation10 Apr 2021 Bojun Ouyang, Dan Raviv

Understanding the flow in 3D space of sparsely sampled points between two consecutive time frames is the core stone of modern geometric-driven systems such as VR/AR, Robotics, and Autonomous driving.

Autonomous Driving Self-supervised Scene Flow Estimation

Unsupervised Scale-Invariant Multispectral Shape Matching

1 code implementation19 Dec 2020 Idan Pazi, Dvir Ginzburg, Dan Raviv

Alignment between non-rigid stretchable structures is one of the most challenging tasks in computer vision, as the invariant properties are hard to define, and there is no labeled data for real datasets.

Geometry Enhancements from Visual Content: Going Beyond Ground Truth

no code implementations15 Dec 2020 Liran Azaria, Dan Raviv

This work presents a new cyclic architecture that extracts high-frequency patterns from images and re-insert them as geometric features.

Super-Resolution

Skeleon-Based Typing Style Learning For Person Identification

no code implementations6 Dec 2020 Lior Gelberg, David Mendlovic, Dan Raviv

We present a novel architecture for person identification based on typing-style, constructed of adaptive non-local spatio-temporal graph convolutional network.

Person Identification

Cost Function Unrolling in Unsupervised Optical Flow

no code implementations30 Nov 2020 Gal Lifshitz, Dan Raviv

Replacing the L1 smoothness constraint with our unrolled cost during the training of a well known baseline, we report improved results on both MPI Sintel and KITTI 2015 unsupervised optical flow benchmarks.

Optical Flow Estimation Rolling Shutter Correction

Occlusion Guided Scene Flow Estimation on 3D Point Clouds

1 code implementation30 Nov 2020 Bojun Ouyang, Dan Raviv

3D scene flow estimation is a vital tool in perceiving our environment given depth or range sensors.

Optical Flow Estimation Scene Flow Estimation

Dual Geometric Graph Network (DG2N) -- Iterative network for deformable shape alignment

no code implementations30 Nov 2020 Dvir Ginzburg, Dan Raviv

We provide a novel new approach for aligning geometric models using a dual graph structure where local features are mapping probabilities.

Rolling Shutter Correction

MRZ code extraction from visa and passport documents using convolutional neural networks

1 code implementation11 Sep 2020 Yichuan Liu, Hailey James, Otkrist Gupta, Dan Raviv

Detecting and extracting information from Machine-Readable Zone (MRZ) on passports and visas is becoming increasingly important for verifying document authenticity.

Optical Character Recognition Optical Character Recognition (OCR)

OCR Graph Features for Manipulation Detection in Documents

no code implementations10 Sep 2020 Hailey James, Otkrist Gupta, Dan Raviv

Detecting manipulations in digital documents is becoming increasingly important for information verification purposes.

Optical Character Recognition Optical Character Recognition (OCR)

Printing and Scanning Attack for Image Counter Forensics

no code implementations27 Apr 2020 Hailey James, Otkrist Gupta, Dan Raviv

Of the three models, our proposed model outperforms the others when trained and validated on images from a single printer.

Image Manipulation

Cyclic Functional Mapping: Self-supervised correspondence between non-isometric deformable shapes

no code implementations ECCV 2020 Dvir Ginzburg, Dan Raviv

We present the first utterly self-supervised network for dense correspondence mapping between non-isometric shapes.

Multi-velocity neural networks for gesture recognition in videos

no code implementations22 Mar 2016 Otkrist Gupta, Dan Raviv, Ramesh Raskar

We present a new action recognition deep neural network which adaptively learns the best action velocities in addition to the classification.

Action Recognition General Classification +2

Deep video gesture recognition using illumination invariants

no code implementations21 Mar 2016 Otkrist Gupta, Dan Raviv, Ramesh Raskar

In this paper we present architectures based on deep neural nets for gesture recognition in videos, which are invariant to local scaling.

Gesture Recognition

Coreset-Based Adaptive Tracking

no code implementations19 Nov 2015 Abhimanyu Dubey, Nikhil Naik, Dan Raviv, Rahul Sukthankar, Ramesh Raskar

We propose a method for learning from streaming visual data using a compact, constant size representation of all the data that was seen until a given moment.

Object Object Tracking

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