نتایج جستجو برای: keyframe extraction
تعداد نتایج: 165810 فیلتر نتایج به سال:
Conventional Wireless capsule endoscopy (WCE) video summary generation techniques apprehend an image by extracting hand crafted features, which are not essentially sufficient to encapsulate the semantic similarity of endoscopic images. Use supervised methods for extraction deep features from need enormous amount accurate labelled data training process. To solve this, we use unsupervised learnin...
In the current era, most of the digital information in the form of multimedia with a giant share of videos. Videos do have audio and visual content where the visual content has number of frames put in a sequence. Most of the consecutive frames do have very little discriminative contents. In video summarization process, several frames containing similar information are needed to get processed. T...
Achieving high effectiveness in Shot Boundary Detection (SBD) paves the way for high-level analysis of the video (keyframe extraction, story segmentation, etc.), which makes this step very important. Thus, the SBD problem has been extensively addressed, and many approaches have been proposed. As these approaches have their own different strengths and weaknesses, merging the outcomes of differen...
Creating video recordings of events such as lectures or meetings is increasingly inexpensive and easy. However, reviewing the content of such video may be time-consuming and difficult. Our goal is to produce a “comic book” summary, in which a transcript is augmented with keyframes that disambiguate and clarify accompanying text. Unlike most previous keyframe extraction systems which rely primar...
Generating situational awareness by augmenting live imagery with collocated scene information has applications from gameplaying to military command and control. We propose a method of object recognition, reconstruction, and localization using triangulation of SIFT features from keyframe camera poses in a 3D map. The map and keyframe poses themselves are recovered at video-rate by bundle adjustm...
This paper describes a demonstration system which automatically indexes broadcast television content for subsequent non-linear browsing. User-specified television programmes are captured in MPEG-1 format and analysed using a number of video indexing tools such as shot boundary detection, keyframe extraction, shot clustering and news story segmentation. A number of different interfaces have been...
Video shot boundary detection and keyframe extraction is an important step in many video-processing applications. We observe that video shot boundary is a multi-resolution edge phenomenon in the feature space. In this experiment, we expanded our previous temporal multi-resolution analysis (TMRA) work by introducing the new feature vector based on motion, incorporating functions to detect flash ...
We present a novel method to measure saliency in molecular dynamics simulation data. This saliency measure is based on a multiscale center-surround mechanism, which is fast and efficient to compute. We explore the use of the saliency function to guide the selection of representative and anomalous timesteps for summarization of simulations. To this end, we also introduce a multiscale keyframe se...
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