Projective Translations and Affine Stereo Calibration
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Efficient Graph-Based Image Segmentation
International Journal of Computer Vision
High-quality video view interpolation using a layered representation
ACM SIGGRAPH 2004 Papers
View generation with 3D warping using depth information for FTV
Image Communication
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Free-viewpoint depth image based rendering
Journal of Visual Communication and Image Representation
Inpainting Large Missing Regions in Range Images
ICPR '10 Proceedings of the 2010 20th International Conference on Pattern Recognition
Region filling and object removal by exemplar-based image inpainting
IEEE Transactions on Image Processing
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This paper presents a novel rendering algorithm based on depth image warping to support virtual pan-tilt-zoom (PTZ) functionalities during 3D view generation. A method based on "3D-ness" knob is proposed for automatically specifying the virtual camera positions along a path, to model the PTZ mechanism in projective framework. Two novel quality enhancing techniques based on segmentation cues are proposed to add pan, tilt and zoom capabilities during arbitrary view synthesis. In addition to reduce the computational load that results in providing such functionalities, a novel selective warping scheme is presented to reduce the computational cost by as much as 40% while maintaining an acceptable quality of rendering results. Experiments are performed using standard "Breakdancers" and "Ballet" video sequences to demonstrate the effectiveness of the proposed methods as compared to currently published results.