**Preface XI**


#### **Part 2 Motion Estimation 55**


#### **Part 3 Quality 101**


Preface

video quality.

quality.

described.

Visual compression has been a very active field of research and development for over 20 years, leading to many different compression systems and to the definition of international standards. There is likely to be a continued need for better compression efficiency, as video content becomes increasingly ubiquitous and places unprecedented pressure on upcoming new applications in the future. At the same time, the challenge of handling ever more diverse content coded in a wide variety of

This book aims to bring together selected recent advances, applications and some original results in the area of image and video compression. They can be useful for researchers, engineers, graduate and postgraduate students, experts in this area and hopefully also for people interested generally in computer science, video coding and

Regarding the organization of the book, it is divided into three parts having seven chapters in total. Chapters are clustered into compression, motion estimation and

The first chapter presents a review of techniques proposed compressed sensing. Compressive Sensing is a new field and its application to video systems is even more recent. There are many avenues for further research and thorough quantitative analyses are still lacking. Number of encoding strategies that has been adopted is

Chapter two analyses the transcoding framework for video communications between mobile devices. In addition, it is proposed a WZ to H.264/AVC transcoder designed to support mobile-to-mobile video communications. Since the transcoder device accumulates the highest complexity from both video coders, reducing the time spent in this process is an important goal. This chapter also presents two approaches to

Chapter three presents a few evaluations and analysis that characterize the loss in perceived interpretability of motion imagery arising from various compression methods and compression rates. Evaluation of image compression for motion imagery illustrates how interpretability-based methods can be applied to the analysis of the

speed-up WZ decoding and H.264/AVC encoding.

formats makes reconfigurable coding a potentially useful prospect.
