VIDEO COMPRESSION docx

... to encode videos using CS. In order to achieve a simple encoder design, conventional MPEG type of encoding VIDEO COMPRESSION Edited by Amal Punchihewa           Video Compression ... compression methods and compression rates for both inter- and intra-frame compression.  Objective measures of image compression: The final topic is a study of video compression...

Ngày tải lên: 27/06/2014, 00:20

... Introduction 1 1.1 The Scene 1 1.2 Video Compression 3 1.3 MPEG-4 and H.264 5 1.4 This Book 6 1.5 References 7 2 Video Formats and Quality 9 2.1 Introduction 9 2.2 Natural Video Scenes 9 2.3 Capture ... Phyllis H.264 and MPEG-4 Video Compression Video Coding for Next-generation Multimedia Iain E. G. Richardson The Robert Gordon University, Aberdeen, UK CONTENTS • viii 3 Video...

Ngày tải lên: 22/12/2013, 10:16

... 15 Benchmark Benchmark http://iphome.hhi.de/suehring/tml/ 2008/12/26 Digital Video Compression Fundamentals an d Standards 41 Outline Outline Introduction Introduction Video Compression Standards Video Compression Standards Simulation ... −  =  = =    ∑∑ 2008/12/26 Digital Video Compression Fundamentals an d Standards 17 Outline Outline Introduction Introduction Video...

Ngày tải lên: 02/07/2014, 23:21

... things) efficient switching between video streams and efficient random access for video decoders [10]. A common requirement in a streaming application is for a video decoder to switch between one ... (where one scene fades into another). 6.5.3 Interlaced Video Efficient coding of interlaced video requires tools that are optimised for compression of field macroblocks. If field coding is...

Ngày tải lên: 14/08/2014, 12:20

... PERFORMANCE • 242 video frames encode network adaptation video frames decode network adaptation network or storage A C BD Figure 7.17 Video CODEC interfaces format of uncompressed video frames, each ... Pre-processing The compression efficiency of a video CODEC can be significantly improved by pre- processing video frames prior to encoding. Problems with the source material and/or...

Ngày tải lên: 14/08/2014, 12:20

Ngày tải lên: 24/12/2013, 18:15

... et al. (2002) used a lexicalized PCFG to rerank the compressions, showing that the addition of lexical information helps eliminate improbable compressions. Here, we propose to enhance lexical- ization ... showing that abundant sentence compressions can be extracted from Wikipedia’s revision history. Second, we use this data to validate the channel model approach for text compression, and imp...

Ngày tải lên: 20/02/2014, 09:20

Ngày tải lên: 20/03/2014, 23:20

... 1. Introduction Moving objects detection in video streams is a key fundamental and critical task in many computer vision applications, including video surveillance, as well as people tracking, ... motion detection in a continuous video stream are: optical flow, frame difference and background subtraction. All of them are based on comparing of the current video frame with one from...

Ngày tải lên: 22/03/2014, 11:20

... IMAGE AND VIDEO COMPRESSION TECHNIQUES 5 Figure 1.3 Original cameraman picture. Having clarified the terms data compression and bandwidth compression, let us look into some basic data compression ... achieves high compression at good vi- sual quality and is, therefore, used as the compression vehicle in JPEG and MPEG standards. More recently 2D DWT has gained importance in video...

Ngày tải lên: 24/03/2014, 01:21