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Handling numerous unordered images for scene reconstruction and categorization attracts increasing interests for commercial and scientific efforts. In this paper, we address the issue of efficient organization of content-related images from plenty of input images on several scenes with contaminated ones. First a robust view-similarity measure is proposed and the images can be categorized effectively...
Motion Capture has been widely used in many fields such as animation and game production. This paper describes the scheme and implementation of a self-designed vision-based motion capture system. This system is set up based on a Client/Server network structure. The client software tracks every marker attached to the actor's body and sends the results to the server in real-time. The server software...
Automatic reconstruction of unknown 3-D objects has been of great importance in the areas of machine vision, object recognition, and automatic modeling. In this paper, a new planning approach of generating 3-D models automatically is proposed. The new algorithm incorporates the limit visual surfaces of unknown model which are obtained according to both of the known object boundary knowledge and the...
Virtual battle environment is an important visible platform for military simulation. Based on the implementation of a specific military project, the system components were described. The key techniques of virtual battlefield environment creation applying VR were analyzed and discussed, including a fast algorithm for 3D-modeling based on complexity, the techniques of 3D-terrain generation and predigestion,...
Pose normalization is a necessary process of 3D face recognition. Automatic and robust normalization is still a challenge to existing techniques. We propose a novel method called Equipartition Fitting Sphere Representation (EPFSR) for shape representation. Convexes on face are localized firstly based on EPFSR. Then the tip and orientation of nose are identified automatically from convexes by template...
In this paper, we propose a concept and present CRAYON, a three dimensional (3D) solid modeling system on the CAVE, to realize a user's concept to a virtual world. CRAYON adopts a set of rules for conversion of a linear drawing into a solid in order to realize what a user wants to get. Considering positions of line vertices, CRAYON determines the position and size of a solid, and displays it on the...
In this paper, we propose a two-level integrated model for accurate 3D tracking of rigid head motion and non-rigid facial animation. At the lowest level, the 2D shape of facial features is robustly extracted using a regularized shape model and a cascade multi-stage algorithm. At the highest level, we estimate both the facial animation and 3D pose parameters via minimizing an energy function comprising...
The paper presents a novel approach for simulating realistic time-varied carpets. By the approach, a 3D carpet is constructed first by image-based techniques from a single photo input, through a texel structure, established to generate realistic carpet with its pattern guided by the captured image. Secondly, a time-varying simulation model is proposed to capture various aspects of the time-dependent...
This paper describes general framework of photo-realistic 3D visualization of urban building with digital map, Lidar point and close-range image in photogrammetry community. First, Vanish Point (VP) geometry deduced from classic photogrammetry co-linear equation is used to obtain camera Interior Of Parameter (IOP) and Exterior Of Parameter (EOP) using groups of mutually orthogonal space lines appeared...
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