نتایج جستجو برای: prediction modes histogram
تعداد نتایج: 373538 فیلتر نتایج به سال:
Byung-Gyu Kim et al. 425 We propose a fast macroblock mode prediction and decision algorithm based on contextual information for Pslices in the H.264/AVC video standard, in which the mode prediction part is composed of intra and inter modes. There are nine 4×4 and four 16×16 modes in the intra mode prediction, and seven block types exist for the best coding gain based on rate-distortion optimiz...
This paper presents a method to learn a decision tree to quantitatively explain the logic of each prediction of a pretrained convolutional neural networks (CNNs). Our method boosts the following two aspects of network interpretability. 1) In the CNN, each filter in a high conv-layer must represent a specific object part, instead of describing mixed patterns without clear meanings. 2) People can...
Pixelwise image segmentation using Markovian prior models depends on several hypothesis that determine the number of parameters and general complexity of the estimation and prediction algorithms. The Markovian neighborhood hypothesis, order and isotropy, are the most conspicuous properties to set. In this paper, we study statistical classification accuracy of two different Markov field environm...
OBJECTIVE The purpose of this study was to investigate the additional value of whole-lesion histogram apparent diffusion coefficient (ADC) metrics, when combined with standard pathologic features, in prediction of biochemical recurrence (BCR) after radical prostatectomy for prostate cancer. MATERIALS AND METHODS The study included 193 patients (mean age, 61 ± 7 years) who underwent 3-T MRI wi...
Here we perform a systematic exploration of the use of distance constraints derived from small angle X-ray scattering (SAXS) measurements to filter candidate protein structures for the purpose of protein structure prediction. This is an intrinsically more complex task than that of applying distance constraints derived from NMR data where the identity of the pair of amino acid residues subject t...
BACKGROUND Prior studies of clinical prognostication in idiopathic pulmonary fibrosis (IPF) using computed tomography (CT) have often used subjective analyses or have evaluated quantitative measures in isolation. This study examined associations between both densitometric and local histogram based quantitative CT measurements with pulmonary function test (PFT) parameters and mortality. In addit...
Due to the privacy-preserving requirement for cloud data management, it is necessary to perform data hiding in the encrypted domain. This paper proposes an effective scheme for reversible data hiding in encrypted H.264/AVC video bitstreams. In the encryption phase, the codewords of intra prediction modes, motion vector differences and partial residual coefficients are encrypted without video bi...
A real-time flow visualization system that produces 17 images over a time span of 150 ms is used to visualize the mixing layers of Mach 1.3 (M c50.59) and Mach 2.0 (M c50.87) ideally expanded high Reynolds number axisymmetric jets. These image sequences reveal details about the influence of compressibility on the dynamics of turbulence structures. In general, the behavior observed in axisymmetr...
flow and sediment transport processes are different and more complex in coarse-bed rivers than in sand-bed rivers. the main goal of the present study is to evaluate different modes of sediment transport using different hydrometric and hydraulic methods, and to address the major uncertainties. four river reaches were selected as representatives of coarse-bed rivers in the northwest of iran. a se...
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