Fast Construction of Dynamic and Multi-Resolution 360° Panoramas from Video Sequences
نویسندگان
چکیده
This paper presents a unified approach to automatically build dynamic and multi-resolution 360° panoramic (DMP) representations from image sequences captured by hand-held cameras mainly undertaking rotation and zooming for natural scenes with moving targets. A simple (yet stable) rigid motion model and a closed-loop-based mosaicing algorithm are proposed to generate cylindrical mosaics automatically. Multi-resolution representations are built for interesting areas by separating zooming sub-sequences from a pan/zoom sequence. Moving objects are detected and separated from images based on motion information, and then more accurate contours are extracted using a modified active contour algorithm. The DMP construction method is fast, robust, and automatic, achieving 5 frames per second for image sequences with 384×288 color images on a Pentium III 800 MHz PC. The construction of the DMP representation can be used in virtual reality, video surveillance, and very low bit-rate video coding.
منابع مشابه
Automating the Construction of Dynamic and Multi-Resolution 360° Panorama for Natural Scenes with Moving Objects
A new approach is presented to automatically build a dynamic and multi-resolution 360° panorama (DMP) from image sequences taken by a hand-held camera. A multiresolution representation is built for the more interesting areas by means of camera zooming. The dynamic objects in the scene can be detected and represented separately. The DMP construction method is fast, robust and automatic, achievin...
متن کاملCreating Dynamic Panorama Using Particle Swarm Optimization
The dynamic panorama keeps the advantage of providing both full view of scene in static panoramas and the dynamics of the scene, which remarkably strengthens the reality of walkthrough. This paper presents a method to create dynamic panoramas. To gain the static panorama, a multi-resolution mosaic algorithm based on Particle Swarm Optimization (PSO) is first applied to a series of photographs a...
متن کاملCreation and Scene Composition for High-resolution Panoramas
We present a system for the interactive navigation through high-resolution cylindrical panoramas. The system is based on MPEG-4 and describes the virtual world by the scene description language BIFS. This allows the easy integration of dynamic video objects, 3-D computer models, interactive scene elements, or spatial audio in order to create realistic environments. For the acquisition of panora...
متن کاملHigh-resolution 360 Video Foveated Stitching for Real-time VR
In virtual reality (VR) applications, the contents are usually generated by creating a 360◦video panorama of a real-world scene. Although many capture devices are being released, getting high-resolution panoramas and displaying a virtual world in realtime remains challenging due to its computationally demanding nature. In this paper, we propose a real-time 360◦video foveated stitching framework...
متن کاملAutomatic Disparity Control in Stereo Panoramas (OmniStereo)
An omnistereo panorama consists of a pair of panoramic images, where one panorama is for the left eye, and another panorama is for the right eye. An omnistereo pair provides a stereo sensation up to a full 360 degrees. OmniStereo panoramas can be created by mosaicing images from a rotating video camera, or by specially designed cameras. The stereo sensation is a function of the disparity betwee...
متن کامل