Break Detection and Camera MotionClassi cation in Digital
نویسندگان
چکیده
In this paper we describe methods using 2D-pixel motion elds for detecting shot breaks and classifying camera motion in digital video. These ow elds can be calculated with optical ow or correlation matching. The Karhunen-Loe ve transform (KLT), based on statistical properties, insures extraction of optimal linear features from ow elds representing a particular motion class. Two methods for classiication are discussed, and experimental results for each method are presented.
منابع مشابه
Diagnostic Accuracy of Digitized Images Using Different Resolution Settings of Digital Camera in Detection of Proximal Caries
Objective: When none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. The Aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. Methods: In this diagnostic accuracy in v...
متن کاملDocument Image Dewarping Based on Text Line Detection and Surface Modeling (RESEARCH NOTE)
Document images produced by scanner or digital camera, usually suffer from geometric and photometric distortions. Both of them deteriorate the performance of OCR systems. In this paper, we present a novel method to compensate for undesirable geometric distortions aiming to improve OCR results. Our methodology is based on finding text lines by dynamic local connectivity map and then applying a l...
متن کاملComparing The Power of the Intraoral Camera to the Digital Extraoral Camera in Diagnosis of Non metric Dental Morphologic Traits
Abstract Background and Aims :One of the method for studying nonmetric traits is intraoral photography pictures .The aim of this research is , Comparison of the power of the intraoral camera to a Extraoral camera to diagnose of morphologic non metric traits. Materials and Methods:In this diagnostic research we selected eligible samples ,among them at least 40 were without traits and 40 had ...
متن کاملA Proposed Simple Teleradiology System Using a Digital Camera
Background & Aims: Teleradiology as an efficient way for avoiding unnecessary transfer of patients to special medical centers requires the images with digital format. However, in some developing countries, including Iran, imaging is being done using non digital devices. In such cases, changing analog images into digital ones can solve the problem. The method which is nowadays used for digita...
متن کاملمقایسه دقت تصاویر رادیوگرافی
Statement of Problem: Computer Sciences, in radiology, like other fields, is of high importance. It should also be noted that the accuracy of the technique and work conditions affects the radiographs information considerably. There for, in order to get more accurate diagnostic information, it seems necessary to investigate different digitized radiographic techniques and to compare them with the...
متن کامل