Our Lab Log page is a historical log of all our news and events since the launch of the site in 2012.
Please click the years to reveal or hide year content.
January 2023
- Multi-Phase Relaxation Labeling for Square Jigsaw Puzzle Solving
Abstract We present a novel method for solving square jigsaw puzzles based on global optimization. The method is fully automatic, assumes no prior information, and can handle puzzles with known or unknown piece orientation. At the core of the optimization process is nonlinear relaxation labeling, a well-founded approach for deducing global solutions from local constraints, […]
December 2022
March 2021
- Computational Polygonal Puzzle Solving
Many real-life challenges can be abstracted as jigsaw puzzles – the construction of a coherent whole from a set of unordered visual fragments. Applications range from archeology and biology, through security and forensics, to direct image editing and many more and for this reason jigsaw puzzle problems have intrigued computer scientists since the 1960’s, The […]
August 2018
- Gradient Surfing
Under Construction
April 2018
- A new project accepted for oral presentation at ICN 2018
Adam Reichenthal, Mor Ben-Tov, Ohad Ben-Shahar, and Ronen Segev, Parallel and serial visual search modes in the archerfish.
- A new project accepted for oral presentation at ICN 2018
Ehud Vinepinsky, Ohad Ben-Shahar, Ofer Donchin, and Ronen Segev, Space representation in the goldfish brain.
March 2018
- New paper accepted for publication in the CVPR 2018
Ehud Barnea and Ohad Ben-Shahar, Curve Reconstruction via the Global Statistics of Natural Curves.
November 2017
- New paper accepted for publication in the Journal of Vision (JOV)
Julius Orlowski, Ohad Ben-Shahar, and Hermann Wagner, Visual search in barn owls: Task difficulty and saccadic behavior.
August 2017
- New paper accepted for publication in ICCV 2017
Boaz Arad and Ohad Ben-Shahar, Filter Selection for Hyperspectral Estimation.
- New paper accepted for publication in ICCV 2017
Shir Gur and Ohad Ben-Shahar, From Square Pieces to Brick Walls: The Next Challenge in Solving Jigsaw Puzzles.
- Our symposium was part of ECVP 2017
Dicle N. Dovencioglu, Katja Doerschner and Ohad Ben-Shahar, Beyond translation: Image deformation and dynamics in material and shape perception.
June 2017
- New paper accepted for publication in the Journal of Vision (JOV)
New paper accepted for publication in the Journal of Vision (JOV) Gal Nir, Boaz Arad, and Ohad Ben-Shahar, Multi inducer grouping for curve completion: Perceptual and computational exploration
May 2017
- A team from the iCVL participated a military exercise to collect data
During the exercise, the team conducted a field experiment to record eye-movements of observers while trying to detect camouflaged snipers. The collected data is expected to contribute to research on camouflage breaking.
March 2017
- New paper accepted for publication in the Journal of Vision (JOV)
Dicle N. Dovencioglu, Ohad Ben-Shahar, Pascal Barla, and Katja Doerschner, Specular motion and 3D shape estimation.
October 2016
- New paper accepted for publication in ECCV
B. Arad and O. Ben-Shahar, Sparse Recovery of Hyperspectral Signal from Natural RGB Images.
- Square Jigsaw Puzzle Solving
It is quite likely that you, the reader, have tried to solve jigsaw puzzles before. Could computers do the same once given the bag of pieces? This problem has been studied progressively (though sporadically) since the 1960’s, but only recently could algorithms began to handle problems of reasonable size at reasonable success rate. In 2011 […]
September 2016
- Congratulations to Gal Nir-Cohen
for submitting her M.Sc. thesis!
September 2015
- New paper accepted for publication in Journal of Vision
J. Orlowski, C. Beissel, F. Rohn, Y. Adato, H. Wagner, and O. Ben-Shahar, Visual pop-out in barn owls: Human-like behavior in the avian brain.
August 2015
- New paper accepted for publication in Sensors
R. Berenstein, M. Hocevar, T. Godesa, Y. Edan, and O. Ben-Shahar, Distance Dependent Multimodal Image Registration for Agriculture Tasks.
July 2015
- New grant awarded from ISF F.I.R.S.T. program
R. Segev, O. Donchin, and O. Ben-Shahar, Visuo-motor adaptation without a cortex: how does the archer fish solve the refraction problem? , 2015-2018.
February 2015
- Sweeper project launched
Representative from the iCVL participated in the kickoff meeting of the Horizon 2020 project Sweeper. Meeting held in Wageningen, the Netherlands and included 6 groups from European academia and industry. Please see the Sweeper Project web site for more information.
January 2015
- The lab is on the news again….
An article in the Times of Israel was published after the visit of the Helmsley Trustees to Israel. Click to enter the post to access the article and also check for some additional background in the Jewish daily Forward.
- New paper accepted for publication in Nature Communications
M. Ben-Tov, O. Donchin, O. Ben-Shahar*, and R. Segev*, Pop-out in Visual Search of Moving Targets in the Archer Fish.
- New paper accepted for publication in Vision Research
D.N. Dovencioglu, M.W. Wijntjes, O. Ben-Shahar, and K. Doerschner, Effects of surface reflectance on local second order shape estimation in dynamic scenes.
November 2014
- New Grant awarded by the Horizon 2020 ICT program
Sweet Pepper Harvesting Robot (SWEEPER). Project involving 6 European groups and ~4M Euros. Start date expected in February 2015.
August 2014
- Hyperspectral Imaging from low cost sensors
In contrast to most artificial and biological optical sensors, hyperspectral imaging systems allows us to accurately recover the full spectral profile of each point in the observed scene. This rich spectral information has been explored and exploited in many fields such as astronomy, biology, chemistry, agriculture, geology, environmental studies and in a wide variety of […]
June 2014
- New paper accepted for publication in ECCV
R. Meiron and O. Ben-Shahar, A Closer Look at Context: From Coxels to the Contextual Emergence of Object Saliency.
- New paper accepted for publication in ECCV
E. Barnea and O. Ben-Shahar, Depth Based Object Detection from Partial Pose Estimation of Symmetric Objects
- New paper accepted for publication in PAMI
O. Ben-Shahar and G. Ben-Yosef, Tangent bundle elastica and computer vision
May 2014
- Several new papers related to cRops are accepted and will be presented in AgEng 2014, Zurich.
with contributions by Ehud Barnea, Rotem Meiron, Ron Berenstein, Yael Edan, Tone Godesa and Marko Hackover (U. Ljubljana), and Ohad Ben-Shahar
April 2014
- Congratulations to Rotem Meiron
for submitting his M.Sc. thesis!
March 2014
- A new abstract to be presented at VSS 2014
D.N. Dovencioglu, M.W.A. Wijntjes, O. Ben-Shahar, and K. Doerschner, Effects of reflectance and object motion in estimating 3D structure. Effects of reflectance and object motion in estimating 3D structure.
- A new study to be presented at VSS 2014
G. Nir and O. Ben-Shahar, Perceptual grouping of multiple inducers in visual completion stimuli.
- Congratulations to Boaz Arad
for being accepted to the integrated track for Ph.D.
February 2014
- Several people from the iCVL participated in a Minerva School
The school, held in Berlin, focused on cognitive robotics and included 4 days of talks, discussions, and social activities.
August 2013
- New student joins the lab
We welcome Gal Nir, a cognitive sciences master student, to the iCVL and the group. Gal, good luck!
June 2013
- New award to lab member
Congratulations to Boaz Arad for receiving the Intel award for graduate students.
May 2013
- New paper accepted to Journal Neurophysiology
M. Ben-Tov, I. Kopilevich, O. Donchin, O. Ben Shahar, C. Giladi, and R. Segev, Visual Receptive Fields of Cells in the Optic Tectum of the Archer Fish
March 2013
- New study to be presented at VSS 2013
I. Kadar and O. Ben-Shahar, SceneNet: A Perceptual Ontology Database for Scene Understanding
February 2013
- New paper accepted to Journal of Real-Time Image Processing
R. Ben-Ari and O. Ben-Shahar, A computationally efficient tracker with direct appearance-kinematic measure and adaptive Kalman filter.
- New Award to lab member
Congratulations to Ilan Kadar who received the award for best graduate research project in the Israel Machine Vision Conference (IMVC) 2013
January 2013
- New award to lab member
Congratulations to Boaz Arad for receiving the interdisciplinary research scholarship from the Zlotowski Center for Neuroscience
November 2012
- New paper accepted to Journal of Vision
I. Kadar and O. Ben-Shahar, A perceptual paradigm and psychophysical evidence for hierarchy in scene gist processing.
- Archerfish Vision
The archer fish (Toxotes chatareus) exhibits unique visual behavior in that it is able to aim at and shoot down with a squirt of water insects resting on the foliage above water level and then feed on them. This extreme behavior requires excellent visual acuity, learning, and tight synchronization between the visual system and body […]
October 2012
- New paper accepted to Journal of Vision
A. Ben-Simon, O. Ben-Shahar, G. Vasserman, M. Ben-Tov, and R. Segev, Visual Acuity in the Archer Fish: Behavior, Anatomy and Neurophysiology.
August 2012
- New Grant awarded award by the Institute for Psychobiology
O. Ben-Shahar (PI), Lazy Neurons for Good Shape: Perceptual inquiry, computational modeling, and cortical implementation.
- New paper accepted to Journal of Experimental Biology
Avi Ben-Simon, Ohad Ben-Shahar, Genadiy Vasserman, and Ronen Segev, Predictive Saccade in the Absence of Smooth Pursuit: Interception of Moving Targets in the Archer Fish.
- Best wishes to Guy
We wish the best for Guy Ben Yosef who just finished his jurney with us and continues on to become a postdoctoral researcher at the Weizmann Institute. Guy, good luck!.
July 2012
- New Grant awarded award by the ISF
O. Ben-Shahar (PI), Visual Curve Completion in the Tangent Bundle.
- New paper accepted to Neural Computation Journal:
G. Ben-Yosef and O. Ben-Shahar, Tangent bundle curve completion with locally connected parallel networks.
- New lab member joins the lab
We welcome Boaz Arad to our group as a new M.Sc. student in the Computer Science department.
- The new iCVL web site was launched!
Please visit us and send us your feedback.
April 2012
- New paper to be presented at CVPR 2012
I. Kadar and O. Ben-Shahar, Small Sample Scene Categorization from Perceptual Relations.
March 2012
- New study to be presented at VSS 2012
A. Mokeichev and O. Ben-Shahar, Phase Randomization of Natural Color Images with Simultaneous Preservation of First and Second Order Statistics.
- New study to be presented at VSS 2012
I. Kadar and O. Ben-Shahar, Exploiting perceptual relations for categorizing natural scenes from few training examples.
- New study to be presented at VSS 2012
G. Ben-Yosef and O. Ben-Shahar, Neural patterns of minimal bending as perceptual curve completion.