Now showing items 1-10 of 10

    • 3D model compression using connectivity-guided adaptive lifting transform 

      Köse K.; Çetin, A. E.; Güdükbay U.; Onural, L. (2007)
      Two compression frameworks that are based on a Set Partitioning In Hierarchical Trees (SPIHT) and JPEG2000 methods are proposed. The 3D mesh is first transformed to 2D images on a regular grid structure. Then, this image-like ...
    • Adaptive routing framework for network on chip architectures 

      Mustafa, N. U.; Ozturk, O.; Niar, S. (Association for Computing Machinery, 2016)
      In this paper we suggest and demonstrate the idea of applying multiple routing algorithms during the execution of a real application mapped on a Network-on-Chip (NoC). Traffic pattern of a real application may change during ...
    • Automatic extraction of important objects for an MPEG-7 compliant video database system 

      Baştan, M.; Güdükbay, U.; Ulusoy Ö. (2008)
      We describe a method to automatically extract video objects, which are important for object-based indexing of videos in an MPEG-7 compliant video database system. Most of the existing salient object detection approaches ...
    • Bilkent University Multimedia Database Group at TRECVID 2008 

      Kucuktunc O.; Bastan, M.; Gudukbay, U.; Ulusoy O. (National Institute of Standards and Technology, 2008)
      Bilkent University Multimedia Database Group (BILMDG) participated in two tasks at TRECVID 2008: content-based copy detection (CBCD) and high-level feature extraction (FE). Mostly MPEG-7 [1] visual features, which are also ...
    • Connectivity-guided adaptive lifting transform for image like compression of meshes 

      Köse K.; Çetin, A. E.; Güdükbay U.; Onural, L. (2007)
      We propose a new connectivity-guided adaptive wavelet transform based mesh compression framework. The 3D mesh is first transformed to 2D images on a regular grid structure by performing orthogonal projections onto the image ...
    • COST292 experimental framework for TRECVID 2006 

      Ćalić J.; Krämer P.; Naci, U.; Vrochidis, S.; Aksoy, S.; Zhangk Q.; Benois-Pineau J.; Saracoglu, A.; Doulaverakis, C.; Jarina, R.; Campbell, N.; Mezaris V.; Kompatsiaris I.; Spyrou, E.; Koumoulos G.; Avrithis, Y.; Dalkilic, A.; Alatan, A.; Hanjalic, A.; Izquierdo, E. (National Institute of Standards and Technology, 2006)
      In this paper we give an overview of the four TRECVID tasks submitted by COST292, European network of institutions in the area of semantic multimodal analysis and retrieval of digital video media. Initially, we present ...
    • Key frame selection from MPEG video data 

      Gerek O.N.; Altunbasak, Y. (1997)
      This paper describes a method for selecting key frames by using a number of parameters extracted from the MPEG video stream. The parameters are directly extracted from the compressed video stream without decompression. A ...
    • Metadata extraction from text in soccer domain 

      Gokturk, Z.O.; Cicekli, N.K.; Cicekli I. (2008)
      Event detection is a crucial part for soccer video searching and querying. The event detection could be done by video content itself or from a structured or semi structured text files gathered from sports web sites. In ...
    • A performance evaluation framework of a rate-controlled MPEG video transmission over UMTS networks 

      Akar, N.; Barbera, M.; Budzisz, L.; Ferrùs, R.; Kankaya, E.; Schembra, G. (IEEE, 2007)
      UMTS is designed to offer high bandwidth radio access with QoS assurances for multimedia communications. In particular, real-time video communications services are expected to become a successful experience under UMTS ...
    • Robust transmission of multi-view video streams using flexible macroblock ordering and systematic LT codes 

      Argyropoulos, S.; Tan, A. S.; Thomos, N.; Arikan, E.; Strintzis, M.G. (2007)
      The transmission of fully compatible H.264/AVC multi-view video coded streams over packet erasure networks is examined. Macroblock classification into unequally important slice groups is considered using the Flexible ...