Modeling fur and hair remains one of the hottest subjects in modern computergraphics. Although some promising techniques to model and render furry and hairy objects were developed in the recent past, and several comm...
详细信息
Modeling fur and hair remains one of the hottest subjects in modern computergraphics. Although some promising techniques to model and render furry and hairy objects were developed in the recent past, and several commercial packages are available, the problem still remains very challenging. The article presents a fresh practical technique to model and render fur and hairs, that is applicable for actual animation production process. This is demonstrated using images and videos taken from real, commercially-created animations.
Hybrid-resolution multispectral imaging has been proposed for reconstructing multispectral images from two types of data with different spatial and spectral resolutions. This paper proposes a new scheme for hybrid-res...
详细信息
ISBN:
(纸本)9781622767014
Hybrid-resolution multispectral imaging has been proposed for reconstructing multispectral images from two types of data with different spatial and spectral resolutions. This paper proposes a new scheme for hybrid-resolution multispectral imaging based on image sensors with a multispectral filter array (MSFA). The proposed method reconstructs multispectral images from a high-resolution RGB image and image data from an MSFA with narrow-band color filters. The MSFA samples each band of a multispectral image sparsely in space, while RGB images are obtained at high spatial resolution;i.e., this dataset is regarded as a hybrid-resolution measurement. In the multispectral image reconstruction, each band of a multispectral image is reconstructed as a linear combination of high-resolution RGB images. The weighting coefficients of the linear combination are determined on the basis of MSFA data. By determining the weighting coefficients for each appropriate small area, overall multispectral images can be reconstructed with high accuracy. In this paper, typical configurations of image sensors for the hybrid-resolution multispectral imaging are also proposed. The effectiveness of the proposed method was verified for 16-band images through computer simulations in the case of a single-panel image sensor with an MSFA. As a result, it was confirmed that the proposed method reconstructed 16-band images at higher spatial resolution and with lower normalized root mean squared error than did a simple linear interpolation of the data from an equidensity-sampling MSFA.
The proceedings contain 220 papers. The special focus in this conference is on Geometry and graphics. The topics include: Interactive visualization for analysis of air traffic model;geometrical universality of Truss-Z...
ISBN:
(纸本)9783319955872
The proceedings contain 220 papers. The special focus in this conference is on Geometry and graphics. The topics include: Interactive visualization for analysis of air traffic model;geometrical universality of Truss-Z system;interaction between 3D printing and geometry studies;the story of NanoJesus: Combining 3D scanning and femtosecond laser nanolithography for the fabrication of the smallest nativity scene in the world;geometrically constrained surface (re)construction;challenges in modelling complex geometry in historical buildings for numerical simulations;transient finite elements analysis of thin-walled structure in selective laser melting process;three-dimensional modeling and finite element analysis of cycloid hyperbolic Arch Dam;mixing of fluids with space-filling curves;electronic geometric modeling is the basis of modern geometric-graphic education in the technical university;graphical model of the biquadratic transformation;the optimization algorithm for gait planning and foot trajectory on the quadruped robot;analytic approach to finding lines in images and estimating their uncertainty;geometric fitting, registration and identification for large sets of spatial measurement data;3-D reconstruction of bubbles inside valve based on multi-mirrors imaging;Facial expression recognition base on weighted KNN and RF;directing scheme support method based on analysis of angry characters;generating videos based on convolutional recurrent generative adversarial networks;study on adaptive threshold image processing method for detection of vaccine activity;a creo-based modeling and toolpath generating system for the nc whirling process of propeller blades;aircraft target recognition in remote sensing images based on saliency maps and invariant moments;curves with special aesthetics generated by an original mechanism.
Visual analysis of knowledge domain is an emerging field of study as science is highly dynamic and constantly evolving. Behind the scene, a knowledge domain is formed and contributed by enormous researchers' publi...
详细信息
Visual analysis of knowledge domain is an emerging field of study as science is highly dynamic and constantly evolving. Behind the scene, a knowledge domain is formed and contributed by enormous researchers' publications that describe the common subject of the domain. There is large number of significant activities have been carried out to visualize and identify the knowledge domains of research projects, groups and communities. However, the research on visualizing the knowledge structure at individual level is relative inactive. It is difficult to track down the individual's contribution to the subject and the degree of the knowledge they possess. In this paper, we are attempting to visualize the individual's knowledge structure by analyzing the citation and co-authorship relational structures. We try to analyze and map author's documents to the knowledge domains. By mapping the documents to knowledge domain, we obtain the skeleton of knowledge structure of an individual. Then, we apply the visualization technique to present the result.
This paper describes the use of gamification in a classroom for higher education, specifically for university students. Our goal is achieve a major increase in student motivation and engagement through various technol...
详细信息
ISBN:
(纸本)9781450323451
This paper describes the use of gamification in a classroom for higher education, specifically for university students. Our goal is achieve a major increase in student motivation and engagement through various technologies and learning methodologies based on game mechanics called gamification [1-2]. Gamification is used to engage students in the learning process [3] and stretch their retention of the knowledge and skills received beyond a single lecture [4]. This study adds Problem-Based Learning (PBL) and Quest-Based Learning (QBL) to students' collaborative work, and mixes teacher support with new, accessible technology, such as virtual environments and visualization 3D on the web thanks to webGL. Understanding the role of gamification in education means understanding under what circumstances game elements can drive a student's learning behavior so that he or she may achieve better results in the learning process.
X-ray digital imaging is an advanced and widely used non-destructive testing technology, X-ray digital imaging system faces some problems in actual inspection such as high costs and radiation effects. computer simulat...
详细信息
X-ray digital imaging is an advanced and widely used non-destructive testing technology, X-ray digital imaging system faces some problems in actual inspection such as high costs and radiation effects. computer simulation technology, which comprehensively applies mathematics, computergraphics and image processing technology, can solve these problems well and has its own advantages. At present, most of the research on X-ray digital imaging simulation has slow imaging speed, poor visibility and poor interaction. In this paper, we make a mathematical model for X-ray digital imaging and build a 3D visual simulation platform in Unity. By using GPU acceleration technology, the imaging speed is reduced to only a fraction of a second which can satisfy real-time interaction. This simulation platform has good demonstration and comfortable user experience based on the 3D visualization technology. This work will promote the applications of computer simulation technology in X-ray digital imaging technology.
The color enhancement of multispectral images is a useful tool to visualize their spectral features. Previously, a color enhancement method which enhances the feature of specified spectral band without changing the av...
详细信息
ISBN:
(纸本)9781617388897
The color enhancement of multispectral images is a useful tool to visualize their spectral features. Previously, a color enhancement method which enhances the feature of specified spectral band without changing the average color distribution was proposed. However, the enhanced feature is sometimes unapparent or invisible, when the wavelength range of the specified band is visually insignificant. In this paper, we propose a modified method for more effective visualization capability in the color enhancement for multispectral images. In the proposed method, a user specifies both the spectral band for extracting the spectral feature and the color to be visualized, respectively. Then, the spectral feature in the multispectral image is enhanced by arbitrary color. The proposed method of the color enhancement was experimentally applied to multispectral images, such as a human skin image and microscopic images of pathological tissue specimen. As a result, we verified that the proposed method can effectively visualize the spectral features.
This book constitutes the refereed proceedings of the 5th internationalconference on Functional imaging and Modeling of the Heart, FIMH 2009, held in Nice, France in June 2009. The 54 revised full papers presented we...
详细信息
ISBN:
(数字)9783642019326
ISBN:
(纸本)9783642019319
This book constitutes the refereed proceedings of the 5th internationalconference on Functional imaging and Modeling of the Heart, FIMH 2009, held in Nice, France in June 2009. The 54 revised full papers presented were carefully reviewed and selected from numerous submissions. The contributions cover topics such as cardiac imaging and electrophysiology, cardiac architecture imaging and analysis, cardiac imaging, cardiac electrophysiology, cardiac motion estimation, cardiac mechanics, cardiac image analysis, cardiac biophysical simulation, cardiac research platforms, and cardiac anatomical and functional imaging.
OpenSoundEdit is a sound-editing system that provides a unified three-dimensional user interface to edit complex sounds composed from different representations. Sounds are mapped onto a single three-dimensional space ...
详细信息
Binarization plays an important role in document image processing, especially in degraded documents. For degraded document images, adaptive binarization methods often incorporate local information to determine the bin...
详细信息
Binarization plays an important role in document image processing, especially in degraded documents. For degraded document images, adaptive binarization methods often incorporate local information to determine the binarization threshold for each individual pixel in the document image. We propose a two-stage parameter-free window-based method to binarize the degraded document images. In the first stage, a proposed scheme is used to determine a proper window size beyond which no substantial increase in the local variation of pixel intensities is observed. In the second stage, based on the determined window size, a noise-suppressing scheme delivers the final binarized image by contrasting two binarized images which are produced by two adaptive thresholding schemes depending on the change rate of the number of binarized foreground pixels. Empirical results demonstrate that the proposed method is competitive when compared to the existing adaptive binarization methods and achieves better performance in F-measure.
暂无评论