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1. A Method for Sparse Disparity Densification using Voting Mask Propagation: (Publications); Abstract We describe a novel method for propagating disparity values using directional masks and a voting scheme. The driving force of the propagation direction is image gradient, making the process ...; Created on 16 November 2012
2. Spatial and Temporal Constraints in Variational Correspondence Methods: (Publications); Abstract In this paper we describe a novel use for a well known temporal constraint term in the framework of variational correspondence methods. The new use, that we call spatial constraining, allows ...; Created on 16 November 2012
3. TOMSY: (Portfolio); ... Temporal Constraints in Variational Correspondence Methods Segmentation and Object Recognition Results Following figure shows results for the segmentation algorithm that I deviced while working on ...; Created on 07 February 2016
4. DRIVSCO: (Portfolio); ... 016276-2) My Role My role in the project was related to researching and implementing robust stereo disparity and optical flow calculation methods that in later projects could be used, amongst other ...; Created on 07 February 2016
5. Non-linear Image Diffusion and Efficient Solver: (Tutorials); ... is discretized and converted into a form that allows it to be solved using numerical methods. These same concepts apply to other computer vision related problems as well! Equation The equation ...; Created on 27 April 2014
6. Representation Spaces: (2013); ... is crucial when using real image sequences under varying lighting conditions and noise from the imaging device. In order for the correspondence methods to produce good, temporally coherent results, properties ...; Created on 07 August 2013
7. Optical Flow in Cellular Biology: (2012); ... are crucial to understand these processe at different levels of organization. We apply computer vision methods for combined optical flow (OF) and muti‐scale (MS) motion estimation of membrane translations, ...; Created on 19 November 2012
8. Experimental Study of Image Representation Spaces in Variational Disparity Calculation: (Publications); ... is crucial when using real image sequences under varying lighting conditions and noise from the imaging device. In order for the correspondence methods to produce good, temporally coherent results, properties ...; Created on 16 November 2012
9. Disparity Disambiguation by Fusion of Signal- and Symbolic-level Information: (Publications); Abstract We describe a method for resolving ambiguities in low-level disparity calculations in a stereo-vision scheme by using a recurrent mechanism that we call signal-symbol loop. Due to the local ...; Created on 16 November 2012
10. Low-cost Sensor to Detect Overtaking Based on Optical-Flow: (Publications); ... Thanks to the use of tightly coupled analog and digital processors, the system is able to perform this complex task in real time with very constrained computing resources. The proposed method has been ...; Created on 16 November 2012
11. Complete thesis: (2012); Here it is, finally! Interested in segmenting disparity maps, or perhaps about robust image representation spaces for disparity calculation, or about variational disparity or optical-flow calculation? ...; Created on 18 September 2012
12. bibtex:voting mask: (Bibtex); @article, TITLE = , JOURNAL = , VOLUME = , YEAR = , NUMBER = , PAGES = , url = }; Created on 10 May 2012
13. bibtex:constraints: (Bibtex); @article, title = , year = , journal = , url = }; Created on 10 May 2012
14. Level-Set Based Disparity Map Segmentation Code: (Code samples); ... understanding of the model, or you are interested in level-set based methods, I suggest that you start from there. However, as soon as I get some free time I will explain the model here as well. Mathematical ...; Created on 09 May 2012
15. Optical Flow Code: (Code samples); ... Early linearisation optical-flow method for small displacements (basically Horn&Schunck type of formulation). Late linearisation method for disparity. Pseudo Code Below you can see pseudo ...; Created on 09 May 2012
16. Stereo Disparity Code: (Code samples); Variational methods for approximating disparity and optical flow are quite similar. Basically the same model that can be used for approximating optical flow with big displacements (late linearisation with ...; Created on 09 May 2012
17. More information: (Publications); ... Sensor to Detect Overtaking Based on Optical-Flow A Method for Sparse Disparity Densification using Voting Mask Propagation Disparity Disambiguation by Fusion of Signal-and Symbolic-level information ...; Created on 09 May 2012
18. Briefly: (Publications); ... Correspondence Methods", 2011, download J.Ralli, J. Díaz and E. Ros, "Spatial and temporal constraints in variational correspondence methods", Machine Vision and Applications, 2011, DOI: 10.1007/s00138-011-0360-x, ...; Created on 09 May 2012
19. Publications: (Publications); ... 2011, DOI: 10.1007/s00138-011-0392-2, bibtex, link to article J.Ralli's doctoral thesis, "Fusion and Regularisation of Image Information in Variational Correspondence Methods", 2011. J.Ralli, J. Díaz, ...; Created on 09 May 2012
20. Stereo Disparity: (Topics); ... in the variational methods. \[\begin \min_ \int_ \Psi \Big( Edata(d)^2 \Big) dx + \int_ \Psi \Big( (d_-d)^2 \Big) + \alpha \int_ \Psi \Big( Esmooth(d)^2 \Big) dx \end\] where \( d_ \) is apriori disparity ...; Created on 09 May 2012

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