REGION-BASED MOTION-COMPENSATED FRAME RATE UP-CONVERSION BY HOMOGRAPHY PARAMETER INTERPOLATION

Region-based parametric motion segmentation using color information Altunbasak, Y; Eren, Pekin Erhan; Tekalp, AM (1998-01-01) This paper presents pixel-based and region-based parametric motion segmentation methods for robust motion segmentation with the goal of aligning motion boundaries with those of real objects in a scene. We first describe a two-step iterative procedure for parametric motion segmentation by either motion-vector or motion-compensated intensity matching. We next present a region-based extension of this method, whereby all pixels within a predefined spatial region are assigned the same motion label. These predefi...
REGION-BASED IMAGE SEGMENTATION VIA GRAPH CUTS Cigla, Cevahir; Alatan, Abdullah Aydın (2008-01-01) A graph theoretic color image segmentation algorithm is proposed, in which the popular normalized cuts image segmentation method is improved with modifications on its graph structure. The image is represented by a weighted undirected graph, whose nodes correspond to over-segmented regions, instead of pixels, that decreases the complexity of the overall algorithm. In addition, the link weights between the nodes are calculated through the intensity similarities of the neighboring regions. The irregular distri...
Region-based dense depth extraction from multi-view video Cigla, Cevahir; Zabulis, Xenophon; Alatan, Abdullah Aydın (2007-09-19) A novel multi-view region-based dense depth map estimation problem is presented, based on a modified plane-sweeping strategy. In this approach, the whole scene is assumed to be region-wise planar. These planar regions are defined by back-projections of the over-segmented homogenous color regions on the images and the plane parameters are determined by angle-sweeping at different depth levels. The position and rotation of the plane patches are estimated robustly by minimizing a segment-based cost function, w...
Region based affine motion segmentation using color information Eren, Pekin Erhan; TEKALP, AHMET MURAT (1997-04-24)
Local Anomaly Detection in Crowded Scenes Using Finite-Time Lyapunov Exponent Based Clustering Öngün, Cihan; Temizel, Alptekin; Taşkaya Temizel, Tuğba (2014-08-29) Surveillance of crowded public spaces and detection of anomalies from the video is important for public safety and security. While anomaly detection is possible by detection and tracking of individuals in low-density areas, such methods are not reliable in high-density crowded scenes. In this work we propose a holistic unsupervised approach to cluster different behaviors in high density crowds and detect the local anomalies using these clusters. Finite-Time Lyapunov Exponents (FTLE) is used for analyzing th...

Citation Formats

E. Turetken and A. A. Alatan, “REGION-BASED MOTION-COMPENSATED FRAME RATE UP-CONVERSION BY HOMOGRAPHY PARAMETER INTERPOLATION,” 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49188.