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This paper presents a robust and accurate self-calibration approach from unordered wide-baseline images. An optimization model based on affine transformation is introduced into propagation to acquire higher accuracy of quasi-dense correspondences. Our self-calibration algorithm is completed through two-layer iteration. In the inner layer, global objective function and local photometric consistency...
For enlarging the surveillance area, more and more visual surveillance systems exploit Pan Tilt Zoom (PTZ) camera. This paper proposes a framework of surveillance system which uses a single PTZ camera. The framework is divided into two phases: offline phase and inline phase. During the offline phase, camera parameters for every image are computed using SIFT features and bundle adjustment algorithm,...
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