Yazar "0000-0002-6842-1528" için MF - Makale Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering listeleme
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3-D Mesh geometry compression with set partitioning in the spectral domain
Bayazıt, Uluğ; Konur, Umut; Ateş, Hasan Fehmi (IEEE-INST Electrical Electronics Engineers Inc, 2010-02)This paper explains the development of a highly efficient progressive 3-D mesh geometry coder based on the region adaptive transform in the spectral mesh compression method. A hierarchical set partitioning technique, ... -
Analysis and design of low-cost bit-serial architectures for motion estimation in H.264/AVC
Fatemi, Mohammad Reza Hosseiny; Ateş, Hasan Fehmi; Salleh, Rosli Bin (Springer, 2013-05)Variable block-size motion estimation (VBSME) process occupies a major part of computation of an H.264 encoder, which is usually accelerated by bit-parallel hardware architectures with large I/O bit width to meet real-time ... -
Disaster damage assessment of buildings using adaptive self-similarity descriptor
Ateş, Hasan Fehmi; Kahraman, Fatih; İmamoğlu, Mümin (2016-08)Assessment of damage caused by a disaster is significant for coordinating emergency response teams and planning emergency aid. In this letter, a robust method for rapid building damage assessment is proposed using pre- and ... -
Enhanced low bitrate H.264 video coding using decoder-side super-resolution and frame interpolation
Ateş, Hasan Fehmi (SPIE-SOC Photo-Optical Instrumentation Engineers, 2013-07)Advanced inter-prediction modes are introduced recently in literature to improve video coding performances of both H.264 and High Efficiency Video Coding standards. Decoder-side motion analysis and motion vector derivation ... -
Fast algorithm analysis and bit-serial architecture design for sub-pixel motion estimation in H.264
Fatemi, Mohammad Reza Hosseiny; Ateş, Hasan Fehmi; Salleh, Rosli Bin (World Scientific Publishing Company, 2010-12)The sub-pixel motion estimation (SME), together with the interpolation of reference frames, is a computationally extensive part of the H.264 encoder that increases the memory requirement 16-times for each reference frame. ... -
Hierarchical quantization indexing for wavelet and wavelet packet image coding
Ateş, Hasan Fehmi; Tamer, Engin (Elsevier Science BV, 2010-02)In this paper, we introduce the quantization index hierarchy, which is used for efficient coding of quantized wavelet and wavelet packet coefficients. A hierarchical classification map is defined in each wavelet subband, ... -
Rate-distortion and complexity optimized motion estimation for H.264 video coding
Ateş, Hasan Fehmi; Altunbaşak, Yücel (IEEE-INST Electrical Electronics Engineers Inc, 2008-02)11.264 video coding standard supports several inter-prediction coding modes that use macroblock (MB) partitions with variable block sizes. Rate-distortion (R-D) optimal selection of both the motion vectors (MVs) and the ... -
Spherical coding algorithm for wavelet image compression
Ateş, Hasan Fehmi; Orchard, Michael T. (IEEE-Inst Electrical Electronics Engineers Inc, 2009-05)In recent literature, there exist many high-performance wavelet coders that use different spatially adaptive coding techniques in order to exploit the spatial energy compaction property of the wavelet transform. Two crucial ... -
A survey of algorithms and architectures for H.264 sub-pixel motion estimation
Fatemi, Mohammad Reza Hosseiny; Ateş, Hasan Fehmi; Salleh, Rosli Bin (World Scientific, 2012-05)This paper reviews recent state-of-the-art H. 264 sub-pixel motion estimation (SME) algorithms and architectures. First, H.264 SME is analyzed and the impact of its functionalities on coding performance is investigated. ...