搜索结果: 31-45 共查到“知识库 计算机图象处理”相关记录2947条 . 查询时间(2.237 秒)
基于加权特征融合的SAR图像目标分类方法
SAR图像 加权 特征融合 目标分类
2016/12/16
针对现有分类器对SAR图像分类正确率不高的问题，考虑到单一的特征很难完全描述SAR目标，并且单一的分类器识别率有限，提出了一种基于加权特征融合的图像分类方法，采用多种特征来描述目标，并且用多个分类器同时对目标识别。实验结果显示，提出的方法能够达到较高的分类正确率，证明了该方法的有效性。
计算机图形处理器加速的光学航空影像正射校正
航空影像 正射校正 计算机图形处理器(GPU) 并行算法 有效像素区域
2016/12/16
提出了计算机图形处理器（GPU）加速的光学航空影像正射校正并行算法，以满足获取光学航空影像对实时性的要求并提高对海量影像数据在CPU上串行正射校正的效率。介绍了光学影像正射校正算法原理以及正射校正算法的并行化处理。为减少GPU执行的计算负载，引入“有效像素区域”概念，设计了改进的GPU并行校正算法。通过配置选择以及存储器访问优化进一步提高了算法的执行效率。最后，分析了GPU并行算法的精度，并验证了...
Hover Widgets: Using the Tracking State to Extend the Capabilities of Pen-Operated Devices
Hover Widgets pen input gestures tablets
2016/5/24
We present Hover Widgets, a new technique for increasing
the capabilities of pen-based interfaces. Hover Widgets are
implemented by using the pen movements above the
display surface, in the trackin...
Zone and Polygon Menus: Using Relative Position to Increase the Breadth of Multi-Stroke Marking Menus
Marking menus pie menus positionbased menus pen-based interfaces
2016/5/24
We present Zone and Polygon menus, two new variants of
multi-stroke marking menus that consider both the relative
position and orientation of strokes. Our menus are designed
to increase menu breadt...
We present an interactive texture painting system that allows the user to author digital images by painting with
a palette of input textures. At the core of our system is an interactive texture synth...
Optimizing Content-Preserving Projections for Wide-Angle Images
Wide-Angle Images Optimizing Content-Preserving
2016/5/24
Any projection of a 3D scene into a wide-angle image unavoidably
results in distortion. Current projection methods either bend straight
lines in the scene, or locally distort the shapes of scene obj...
Illustrating How Mechanical Assemblies WorkExploded View Diagrams of Mathematical Surfaces
exploded view diagrams mathematical visualization symmetry
2016/5/24
We present a technique for visualizing complicated mathematical surfaces that is inspired by hand-designed topological
illustrations. Our approach generates exploded views that expose the internal st...
ReVision: Automated Classification, Analysis and Redesign of Chart Images
Visualization chart understanding information extraction redesign computer vision
2016/5/24
Poorly designed charts are prevalent in reports, magazines,
books and on the Web. Most of these charts are only available
as bitmap images; without access to the underlying data it is
prohibitively...
Deconstructing and Restyling D3 Visualizations
Visualization chart understanding restyling D3
2016/5/24
The D3 JavaScript library has become a ubiquitous tool for
developing visualizations on the Web. Yet, once a D3 visualization
is published online its visual style is difficult to
change. We present...
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...
MILCut: A Sweeping Line Multiple Instance Learning Paradigm for Interactive Image Segmentation
Sweeping Line Multiple Instance Learning Paradigm Interactive Image Segmentation
2016/1/22
Interactive segmentation, in which a user provides a bounding box to an object of interest for image segmenta-tion, has been applied to a variety of applications in im-age editing, crowdsourcing, comp...
Harvesting Motion Patterns in Still Images from the Internet
motion pattern discovery image with implied mo- tion visual perception
2016/1/22
Most vision research on motion analysis focuses on learning human actions from video clips. In this paper, we investigate the use of still images, rather than videos, for motion recog-nition. We prese...
为解决彩色物体表面颜色干扰以及条纹之间的颜色串扰导致彩色结构光系统产生的条纹颜色误识别问题,提出了彩色结构光的条纹颜色分离以及聚类方法。首先,提出了一种新的摄像机和投影机的颜色校正方法,以消除外界环境光以及系统的颜色串扰现象,解决系统的耦合性问题。其次,给出了一种物体的反射分离机制,用于提取物体表面的漫反射分量和镜面反射分量,修正彩色物体的背景色对彩色编码条纹的影响。最后,利用颜色聚类算法,对经过...
Passing Excellence, the Interactive Art Visualization of the Kizhi Ensemble
Architecture Cultural Heritage Visualization Virtual Reality Computer graphics Digital Reconstruction
2015/11/13
This paper describes the development of an artistic visualization project that restores the architectural history of the world famous wood churches and architectural museum, Kizhi. Kizhi is the archit...
Combination of distance data with high resolution images
Vision Fusion Camera Scanner DEM/DTM Orthorectification
2015/8/25
Typical devices for acquiring distance data are laser scanners. Combining these with higher resolution image data is state of the art.Recently, camera systems are available providing distance and imag...