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Intermediate view synthesis algorithm using mesh clustering for rectangular multiview camera system

Taewan Kim
2010 Optical Engineering: The Journal of SPIE  
By experiments, we confirm that the proposed method synthesizes a high-quality image and is suitable for 3-D video systems.  ...  The mesh is classified into foreground and background groups by disparity values and then affine transformed.  ...  Acknowledgment This work was supported in part by the Ministry of Knowledge Economy ͑MKE͒ through the next-generation project.  ... 
doi:10.1117/1.3309459 fatcat:lvxj32ocabdlrcaq6etfbvldou

Coding Of Arbitrarily Shaped Video Objects Using B-Spline Wavelets

Mervi Sepponen, Visa Koivunen
1998 Zenodo  
Publication in the conference proceedings of EUSIPCO, Rhodes, Greece, 1998  ...  In this paper, a coding method for triangular (and rectangular) image patches based on B-spline wavelet filter banks and affine warps is introduced.  ...  Finally, a rectangular arrangement of data is obtained. Consequently, similar filter bank for both triangular and rectangular image patches may be used.  ... 
doi:10.5281/zenodo.36590 fatcat:cc5i7bca65awfgj2oaydxfpzta

Superimposing 3D Virtual Objects using Markerless Tracking

Sang-Cheol Park, Sang-Woong Lee, Seong-Whan Lee
2006 18th International Conference on Pattern Recognition (ICPR'06)  
We can estimate 3D object coordinates from 4 vertices of quadrangle through transformations of image coordinates.  ...  This paper presents a novel methods to estimate the coordinates of a 3D object using the four vertices of a quadrangle and to track the markerless feature points.  ...  Acknowledgements This research was supported by the Intelligent Robotics Development Program, one of the 21st Century Frontier R&D Programs funded by the Ministry of Commerce, Industry and Energy of Korea  ... 
doi:10.1109/icpr.2006.1093 dblp:conf/icpr/ParkLL06 fatcat:w7m426oaxzfppo67f4cuccko5u

Estimating 3D Object Coordinates from Markerless Scenes [chapter]

Ki Woon Kwon, Sung Wook Baik, Seong-Whan Lee
2005 Lecture Notes in Computer Science  
This paper presents a novel method for estimating the coordinates of a 3D object using the four vertices of a quadrangle and the camera motion parameters.  ...  Estimation of 3D object coordinates from 2D images of video is a studied problem in augmented reality.  ...  and ). , , , , , , , , ( 33 32 Experimental Results and Analysis The proposed method, which estimates the coordinates of a 3D object using a planar structure for video-based AR, has been tested for the  ... 
doi:10.1007/11428862_122 fatcat:uhifjx76jbh4teksqmso24pfmm

Restricted affine motion compensation in video coding using particle filtering

Manoj Alwani, Ravi Chaudhary, Mona Mathur, Sumantra Dutta Roy, Santanu Chaudhury
2010 Proceedings of the Seventh Indian Conference on Computer Vision, Graphics and Image Processing - ICVGIP '10  
We propose a novel particle filter-based motion compensation strategy for video coding.  ...  Results of our experimentation show reduced residual energy and better PSNR as compared to traditional video coding methods, especially in regions of complex motion such as zooming and rotation.  ...  In coding standards such as H.264, for every (rectangular) block in an image, one searches for the closest matching block of the same size, in a reference image (e.g., the previous frame), using a simple  ... 
doi:10.1145/1924559.1924623 dblp:conf/icvgip/AlwaniCMRC10 fatcat:5ua7bcuhsvffhbhpzzvab5pmfy

Real-time TV logo detection based on color and HOG features

Fei Ye, Chongyang Zhang, Ya Zhang, Chao Ma
2013 2013 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)  
This paper proposes a real-time TV logo detection algorithm that can detect logos embedded in TV videos or in the real-world videos/images.  ...  , and affine transformation is adopted to construct a robust sample database; finally, the candidates are recognized by the trained SVM Classifiers using their HOG features.  ...  The 200 affine transformations try to cover all 360 degrees viewing angles. In total 200 images of 5 types of TV logos, have been tested and reported.  ... 
doi:10.1109/bmsb.2013.6621685 dblp:conf/bmsb/YeZZM13 fatcat:pp5tkszj6bchnjbhqj6pcnjkhq

Video orbits of the projective group a simple approach to featureless estimation of parameters

S. Mann, R.W. Picard
1997 IEEE Transactions on Image Processing  
We present direct featureless methods for estimating the eight parameters of an "exact" projective (homographic) coordinate transformation to register pairs of images, together with the application of  ...  The proposed methods work well on image data collected from both good-quality and poor-quality video under a wide variety of conditions (sunny, cloudy, day, night).  ...  Hubel of Hewlett-Packard for the use of the Claire image sequence, and to the University of Toronto for permission to take pictures used in Fig. 1 .  ... 
doi:10.1109/83.623191 pmid:18283017 fatcat:pwhuq2qtcnhkxpsocplphzeide

Image Mosaicing using Cylindrical Mapping

Santosh DR, Hemanth Kumar, Bharath MK, Vaitheeswaran SM
2014 International Journal of Robotics and Mechatronics  
The demand for high detail and wider coverage can be satisfied using Image Mosaicing i.e. the stitching of selected frames of a video by estimating the camera motion between the frames and thereby registering  ...  successive frames of the video to arrive at the mosaic.  ...  Thus there is a requirement of a method of implementing a method which overcomes the above mentioned problems. In this paper a method for image combining is been proposed.  ... 
doi:10.21535/ijrm.v1i2.90 fatcat:syc2muxogbgslpd77cwr2hkftu

Affine Motion Based CMOS Distortion Analysis and CMOS Digital Image Stabilization

Won-ho Cho, Ki-sang Hong
2007 IEEE transactions on consumer electronics  
To remove CMOS distortions due to the affine global image motion, CMOS distortion model is proposed to explain the effect of the affine global image motion on the CMOS distortion in CISs.  ...  In addition, to reduce the computational time and the outlier effect, a reliable feature selection method is proposed to be used in the affine global image motion estimation.  ...  ACKNOWLEDGMENT We would like to acknowledge Dae-Woong Kim who gave us a valuable opinion and also, thank for the financial support of Ministry of Education, Korea through Brain Korea 21 (BK 21) program  ... 
doi:10.1109/tce.2007.4341553 fatcat:zde6o73a2jhg3khlsjc7qexzfm

Occluded Street Objects Perception Algorithm of Intelligent Vehicles Based on 3D Projection Model

Wei Liu, Longsheng Wei, Yongbo Li
2018 Journal of Advanced Transportation  
We present a super perception system of intelligent vehicles for perceiving occluded street objects by collecting images from neighbor front vehicles V2V (vehicle to vehicle) video streams based on 3D  ...  Upon the 3D projection model based on the pair images, the system uses affine transformation to achieve augmented reality method to increase the visibility perspective of driver system.  ...  The authors would like to thank Professor Shi Jinlong for helpful discussions. They also thank Professor Yuanfang Wang for supplying dataset of [17] and helpful comments.  ... 
doi:10.1155/2018/1547276 fatcat:n4v4qcuuqfhftfuboepp3o37fu

Space-time super-resolution from multiple-videos

Esmaeil Faramarzi, Dinesh Rajan, Marc P. Christensen
2012 2012 11th International Conference on Information Science, Signal Processing and their Applications (ISSPA)  
In this paper, a new method for reconstructing a video of higher spatial and temporal resolutions from multiple low-resolution video sequences is introduced.  ...  This regularization form is a type of variational integral that exploits the piecewise smoothness nature of high-resolution images.  ...  ACKNOWLEDGEMENT The authors are very grateful to the members of the PANOPTES group at SMU for valuable discussions.  ... 
doi:10.1109/isspa.2012.6310553 dblp:conf/isspa/FaramarziRC12 fatcat:tpkps6wsnvgzjdd6tz5otlk2ly

Survey on Keypoint Based Copy-move Forgery Detection Methods on Image

Devanshi Chauhan, Dipali Kasat, Sanjeev Jain, Vilas Thakare
2016 Procedia Computer Science  
This can be very important task when images are used as an evidence which cause change in judgment like, for example in a court of law.  ...  This type of forgery is done using availability of new sophisticated software and applications. This type of forgery is also done in video.  ...  The authenticity of video/image plays a very important role in the aspects of sensitive cases where the video is produced as a witness in court of law, so even a small modification is not acceptable in  ... 
doi:10.1016/j.procs.2016.05.213 fatcat:6cijmazj2fdt7evuuy55u2fhzq

Generalized likelihood ratio-based face detection and extraction of mouth features

C. Kervrann, F. Davoine, P. Pérez, R. Forchheimer, C. Labit
1997 Pattern Recognition Letters  
To this end, we propose algorithms adapted to the poor quality of the images and suited to a further real-time application. § 144 pixels) video sequences, with a frame rate of 5 Hz and a bitrate of 20  ...  The criterion is optimized efficiently with respect to similarity, affine or perspective transform parameters using a coarse-to-fine search strategy combined with a simulated annealing algorithm.  ...  Once the location of the face has been estimated, the vector parameter is used to compensate by affine or perspective transform, yielding a rectangular ( v § e @ ) box containing a face.  ... 
doi:10.1016/s0167-8655(97)00065-2 fatcat:ahacx7pksbeerit5d3ibmjpbpm

Generalized likelihood ratio-based face detection and extraction of mouth features [chapter]

C. Kervrann, F. Davoine, P. Pérez, H. Li, R. Forchheimer, C. Labit
1997 Lecture Notes in Computer Science  
A statistical scheme based on a subspace method is presented for detecting human faces under varying poses. We propose a new matching criterion based on the Generalized Likelihood Ratio.  ...  The criterion is optimized efficiently with respect to similarity, affine or perspective transform parameters using a coarse-to-fine search strategy combined with a simulated annealing algorithm.  ...  Once the location of the face has been estimated, the vector parameter is used to compensate by affine or perspective transform, yielding a rectangular (56 46) box containing a face.  ... 
doi:10.1007/bfb0015976 fatcat:xdg6vg2hl5aihhtpx7q3mvtk54

Video stabilization and rolling shutter distortion reduction

Wei Hong, Dennis Wei, Aziz Umit Batur
2010 2010 IEEE International Conference on Image Processing  
This paper presents an algorithm that stabilizes video and reduces rolling shutter distortions using a six-parameter affine model that explicitly contains parameters for translation, rotation, scaling,  ...  The results show the benefits of the proposed algorithm quantified by the Interframe Transformation Fidelity (ITF) metric.  ...  PROPOSED METHOD Six-Parameter Affine Model of Frame-to-Frame Motion and Distortion We begin by developing a model for the transformation between consecutive frames.  ... 
doi:10.1109/icip.2010.5649595 dblp:conf/icip/HongWB10 fatcat:canymt7wo5dm7bla3x26hlx2oq
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