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Over the years, several spatio-temporal interest point detectors have been proposed. While some detectors can only extract a sparse set of scale-invariant features, others allow for the detection of a larger amount of features at user-defined scales. This paper presents for the first time spatio-temporal interest points that are at the same time(More)
Most methods for the recognition of shape classes from 3D datasets focus on classifying clean, often manually generated models. However, 3D shapes obtained through acquisition techniques such as Structure-from-Motion or LIDAR scanning are noisy, clutter and holes. In that case global shape features—still dominating the 3D shape class recognition(More)
n this paper, we present a new method for robust content-based video copy detection based on local spatio-temporal features. As we show by experimental validation, the use of local spatio-temporal features instead of purely spatial ones brings additional robustness and discriminativity. Efficient operation is ensured by using the new spatio-temporal(More)
Figure 1: An illustration of the detection pipeline for the 'drinking' action: (1) a frame from the input video, (2) spatio-temporal features are computed throughout the video, (3) exemplar-based hypotheses are generated and scored, (4) a grouping algorithm yields two distinct detections. Over recent years, a lot of progress has been made towards automatic(More)
For the preservation of cultural heritage to be successful the general public must be able to experience sites and reconstructions in an intuitive, yet convincingly real way. In this paper, a pipeline is discussed that can be employed to generate an interactive presentation of landscape reconstruction through a Quicktime VR object movie. Images of the(More)
We present a novel real-time image-based rendering system for generating realistic novel views of complex scenes from a set of uncalibrated images. A combination of structure-and-motion and stereo techniques is used to obtain calibrated cameras and dense depth maps for all recorded images. These depth maps are converted into restrictive quadtrees, which(More)
Preservation of cultural heritage through digital technology can only be successful if people can experience sites and reconstructions in an intuitive, yet convincingly realistic manner. A way to get people interested in the past is highlighting the link of the past with the present. In this paper, an entire pipeline is discussed that augments an existing(More)
The development of a simplified analytical model to describe the thermal history of a Printed Circuit Board assembly (PCA) during convective reflow soldering is described in this paper. Verification of the assumptions was done by Finite Element Modeling, as well as comparison with experimental measured temperature profiles.
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