[PDF] Top 20 An Intelligent 3D Navigation Interface for Large Virtual Environments

... new 3D interactive applications on personal ...the navigation control loop to im- prove the efficiency of 3D navigation in an architectural ...planner for ... See full document

... common navigation inter- faces for 3D virtual ...cluttered virtual scene with such a mode. Intelligent 3D navigation interfaces with assisting mecha- ... See full document

... Roadmap, Intelligent Camera Control, Budget-based Planning ...Real-time 3D games are becoming a popular application of virtual environments in our daily ...realistic virtual ... See full document

... develop an intelligent interactive inter- face that can incorporate real-time planning into the control loop of the user interface in order to facilitate the navigation of a 3D ... See full document

... adopted for this ...have large degrees of uncertainty. In the authors’ reactive navigation scheme, rangefinders are not used to identify the precise shapes and positions of ...is an implicit ... See full document

... 或是和本研究相關的虛擬實境導覽上。 3. 規劃即時攝影機路徑 3.1 問題描述 當使用者在虛擬環境中操縱化身時，必須同時 控制化身的移動與攝影機的視角，因此一般的方法 會將一個攝影機放置於化身後方適當的角度。攝影 機會一直瞄準著使用者操作的化身，因此化身會保 持在螢幕中央。然而此類第三人稱的攝影機所需處 理的一個問題是如何防止攝影機與虛擬環境中由 幾何圖形所構成的障礙物發生碰撞。例如當我們將 ... See full document

... too large to search for an interactive ...space for the following reasons. First, we can always model the viewpoint as an enclosing circle such that any orientations of this circle will ... See full document

... in an optical coherence tomography (OCT) system with multiple scans of segmented spectral bands and software signal ...With an effective spec- tral full-width at half-maximum (FWHM) of 45 nm, centered at ... See full document

... construct an appropriate 3-D model of the indoor environment using the images taken by three cameras mounted on an ...The 3-D model data may be used to build a virtual ... See full document

... challenge for computers as well as for ...applications. For example, a computer-controlled camera can then present a sequence of non-obstructive image or a video segment to a surgeon dur- ing a ... See full document

... uses an automatic text categorization-based method for recommending news articles to the ...conducted for category assignment using the collection of positive and negative exemplars in training ... See full document

... genotype. An efficient bi-objective division criterion is to minimize the degree of epistasis, which is taken as a mea- sure of the amount of interactions in a chromosome [17], while maximizing the value of ... See full document

... IEEE INTELLIGENT SYSTEMS Published by the IEEE Computer Society continually evolving everyday objects for nonexpert ...Smart environments have rapidly emerged as an exciting new paradigm that ... See full document

... Genetic algorithm was chosen for the global path planner, due to its ability to generate a reasonably good path in a fraction of the time necessary to find an optimal p[r] ... See full document

... 摘要: A vision-based approach to obstacle avoidance for autonomous land vehicle (ALV) navigation in indoor environments is proposed. The approach is based on the use of pattern recognition scheme, the ... See full document

... avoidance for au- tonomous land vehicle (ALV) navigation in indoor environments is pro- ...ALV navigation in the ...method for separating these patterns into two classes is ... See full document

... partner for today’s three-dimensional computer graphic design and virtual ...system for digital photogrammetry must be a hybrid, processing both image and vector ...of virtual reality. ... See full document

... nodes for completing the ...task 3.3, al- though the grouping operation using a mouse was rated as easier than using gestures, the mouse group was not able to complete the task ...task ... See full document

... 272 J.-L. Kuo et al. vehicles, PHEV can reduce the problem of air pollution, dependency on petroleum, and greenhouse gas emissions that contribute to global warming [2][3][4]. There is great potential for ... See full document

... Step 3 is chosen to be ...segmentation for about ten audio files, the correct rate of this algorithm is computed to be ...method. An example of selecting the first silent part in an input ... See full document