نتایج جستجو برای: shot

تعداد نتایج: 18030  

2007
Ayman Alfalou Ali Mansour

Shot change detection is an essential step in video content analysis. However, automatic shot change detection often suffers high false detection rates when there are camera or object movements. In this paper, we propose an approach to solve this problem based on local keypoint matching of the video frames. Experimental results show that the proposed algorithm is effective for all kinds of shot...

2011
KEN R. DUFFY GIOVANNI LUCA TORRISI

It is shown that the sample paths of Poisson shot noise with heavy-tailed semiexponential distributions satisfy a large deviation principle with a rate function that is insensitive to the shot shape. This demonstrates that, on the scale of large deviations, paths to rare events do not depend on the shot shape.

Probabilistic properties of Cox processes of relevance for statistical modeling and inference are studied. Particularly, we study the most important classes of Cox processes, including log Gaussian Cox processes, shot noise Cox processes, and permanent Cox processes. We consider moment properties and point process operations such as thinning, displacements, and superpositioning. We also discuss...

2007
A. Schuh U. Holzwarth

Shot peening with steel shot followed by a cleaning process with glass beads is commonly used as surface finish in the production of modular hip endoprostheses. The induced compressive residual stresses increase the resistance against fatigue and fretting fatigue. The surface roughness can be adjusted in a range that enhances the physiological acceptance I compatibility of monolithic ~rnplants....

2002
Ken-ichirou Suzuki Masaomi Nakajima Hitoshi Sakano Yasuo Sambe Sakuichi Ohtsuka

We propose the motion direction histogram (MDH) as a new feature for abrupt shot boundary detection in video sequences. Conventional methods for abrupt shot boundary detection use a threshold difference as a measure of the feature values between consecutive images. It is difficult for such conventional methods t o detect shot boundaries in "busy" scenes, in which intensities change substantiall...

2006
Ohad Greenshpan

What is a "SHOT"? What we are looking for Shot – an abrupt change in the scene i.e. change of scene, change of camera angle (change of active camera). Shot detection in video is also called – video segmentation. If we compare stills image segmentation to video segmentation, then the homogeneous regions in image are homogeneous sequences in video and boundaries in images are actually the shots i...

2012
Lenka Krulikovská Jaroslav Polec

In this paper we present a modification to existed model of threshold for shot cut detection, which is able to adapt itself to the sequence statistics and operate in real time, because it use for calculation only previously evaluated frames. The efficiency of proposed modified adaptive threshold scheme was verified through extensive test experiment with several similarity metrics and achieved r...

2017
Panpan Zhou Will J. Hardy Kenji Watanabe Takashi Taniguchi Douglas Natelson

High quality Au/hBN/Au tunnel devices are fabricated using transferred atomically thin hexagonal boron nitride as the tunneling barrier. All tunnel junctions show tunneling resistance on the order of several kΩ/μm. Ohmic I-V curves at small bias with no signs of resonances indicate the sparsity of defects. Tunneling current shot noise is measured in these devices, and the excess shot noise show...

1996
Wayne Niblack Ramesh C. Jain

Many algorithms have been proposed for detecting video shot boundaries and classifying shot and shot transition types. Few published studies compare available algorithms, and those that do have looked at limited range of test material. This paper presents a comparison of several shot boundary detection and classification techniques and their variations including histograms, discrete cosine tran...

2006
Mathieu Bouville

Position play is a key feature of carom billiards: players try to score while ensuring that the next position will be favorable. The difficulty of a shot therefore depends on that of the previous shot, e.g. an easy shot generally follows an easy shot. We introduce a Markov process which accounts for such correlations. It can explain the long series of easy shots and the high scores which ensue....

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