Yazar "Ateş, Hasan Fehmi" 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, ... -
Multi-hypothesis contextual modeling for semantic segmentation
Ateş, Hasan Fehmi; Sünetci, Sercan (Elsevier Science BV, 2019-01-01)Semantic segmentation (i.e. image parsing) aims to annotate each image pixel with its corresponding semantic class label. Spatially consistent labeling of the image requires an accurate description and modeling of the local ... -
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. ... -
Üç boyutlu göz geometrisinin küme bölüntüleme ile verimli spektral kodlaması
Bayazıt, Uluğ; Ateş, Hasan Fehmi (Tübitak, 2008-08)3-B nesnelerin görselleştirilmesi uygulamalarında kullanılan tel filelerin ( gözlerin) geometrilerinin sıkıştırılması (DEERİNG, 1995)’deki ön görücü kodlamaya dayanan yöntem ile beraber rağbet gören bir araştırma alanı ...