搜索结果: 1-8 共查到“计算机科学技术 Gradient”相关记录8条 . 查询时间(0.159 秒)
Vectorising Bitmaps into Semi-Transparent Gradient Layers
Semi-Transparent Gradient Layers Vectorising Bitmaps
2016/5/24
We present an interactive approach for decompositing bitmap drawings and studio photographs into opaque and
semi-transparent vector layers. Semi-transparent layers are especially challenging to extra...
Reduction of the Adjoint Gradient Formula in the Continuous Limit
Adjoint Gradient Formula Continuous Limit
2015/7/2
We present a new continuous adjoint method for Aerodynamic Shape Optimization (ASO) using the Euler equations, which reduces the computational cost of the gradi ents by reducing the volume integral pa...
Prototypicality Gradient and Similarity Measure: A Semiotic-Based Approach Dedicated to Ontology Personalization
Semantic Measure Conceptual Prototypicality Lexical Prototypicality Gradient Ontology Personalization Semiotics
2010/3/16
This paper introduces a new approach dedicated to the Ontology Personalization. Inspired by works in Cognitive Psychology, our work is based on a process which aims at capturing the user-sensitive rel...
A NO-REFERENCE PERCEPTUAL BLUR METRIC USING HISTOGRAM OF GRADIENT PROFILE SHARPNESS
image quality assessment blur metric gradient profile just noticeable distortion
2009/11/16
No-reference measurement of blurring artifacts in images is a challenging problem in image quality assessment field. One of the difficulties is that the inherently blurry regions in some natural image...
Facial Shape Localization Using Probability Gradient Hints
Boosting facial shape localization maximum a posteriori estimation probability gradient hints
2009/10/16
This letter proposes a novel method to localize facial shape represented by a series of facial landmarks. In our method, the problem of facial shape localization is formulated with a Bayesian inferenc...
An auxiliary model based stochastic gradient algorithm for multivariable output error systems
Recursive identification parameter estimation stochastic gradient
2009/9/9
The identification problem of multivariable output error systems is considered in this paper. By constructing an auxiliary model using available input-output data and by replacing the unknown inner va...
An auxiliary model based stochastic gradient algorithm for multivariable output error systems
Recursive identification parameter estimation stochastic gradient
2009/9/9
The identification problem of multivariable output error systems is considered in this paper. By constructing an auxiliary model using available input-output data and by replacing the unknown inner va...
A No-Reference Blocking Artifacts Metric Using Selective Gradient and Plainness Measures
Blocking artifacts metric gradient measures plainness measures
2008/12/17
This paper presents a novel no-reference blocking artifacts metric using selective gradient and plainness (BAM_SGP) measures for DCT-coded images. A boundary selection criterion is introduced to dist...