Enhanced Augmented Reality with Shadows in Naturally Illuminated Environments
نویسندگان
چکیده
In this paper, we propose a method for generating graphic objects having realistic shadows inserted into video sequence for the enhanced augmented reality. Out purpose is to extend the work of [I], which is applicable to the case of a static camera. to video sequence. However, in case of video, there are a few challenging problen~s, including the camera calibration problem over video sequence. false shadows occurring when the video camera moves and so on. U7e solvr these pro1)lrms using thr convenient calibration trchnique of [2] and the information from video sclclucnce. We present the experimental results on real video sequences.
منابع مشابه
Mixing synthesis and video images of outdoor environments: application to the bridges of Paris
Augmented reality is the technique by which real images can be enhanced by addition of computer-generated information. Augmented reality shows great promises in fields where a simulation in situ would be either impossible, not realistic enough or too expensive. We present in this paper an augmented reality loop that uses vision tools (perspective inversion, tracking) and show how it was used to...
متن کاملEstimation of multiple directional light sources for synthesis of augmented reality images
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. We use the resulting highly accurate estimates to modify virtually the illumination and geometry of a real scene and produce correctly illuminated Augmented Reality images. Our method obviates the need to modify the imag...
متن کاملCorrect Occlusion Effect in the Optical See-through Immersive Augmented Reality Display System
This paper proposes the technique for creating the correct occlusion effect in an immersive augmented reality environment with wide field of view. Generally, it is difficult to represent the correct occlusion between virtual objects and real objects in augmented reality displays, based on a semi-transparent mirror. This problem also occurs in the immersive augmented reality display system, name...
متن کاملPoint Based Illumination Condition Matching Approach to Photometric Registration
With recent and continued increases in computing power, and advances in the field of computer graphics, realistic augmented reality environments can now offer inexpensive and powerful solutions in a whole range of training, simulation and leisure applications. One key challenge to maintaining convincing augmentation, and therefore user immersion, is ensuring consistent illumination conditions b...
متن کاملAugmented Reality platform for enhancing integration of virtual objects
With the wide spread of high end processors integrated in mobile devices, ranging from 1GHz processors, to dual core processors and hybrid processors (GPU and CPU on one chip), augmented reality became more popular solution for visualization and navigation. This work proposes an augmented reality platform for organizing and enhancing integration of computer generated objects by introducing ligh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000