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This book discusses computational complexity of High Efficiency Video Coding (HEVC) encoders with coverage extending from the analysis of HEVC compression efficiency and computational complexity to the reduction and scaling of its encoding complexity. After an introduction to the topic and a review of the state-of-the-art research in the field, the authors provide a detailed analysis of the HEVC encoding tools compression efficiency and computational complexity. Readers will benefit from a set of algorithms for scaling the computational complexity of HEVC encoders, all of which take advantage from the flexibility of the frame partitioning structures allowed by the standard. The authors also provide a set of early termination methods based on data mining and machine learning techniques, which are able to reduce the computational complexity required to find the best frame partitioning structures. The applicability of the proposed methods is finally exemplified with an encoding time control system that employs the best complexity reduction and scaling methods presented throughout the book. The methods presented in this book are especially useful in power-constrained, portable multimedia devices to reduce energy consumption and to extend battery life. They can also be applied to portable and non-portable multimedia devices operating in real time with limited computational resources.
"Medical Coding Certification Exam Preparation" is designed to aid in the review for the Certified Professional Coder (CPC) exam. While not intended to be an introduction to medical coding, it provides an extensive review of the topics students need to know for the CPC exam, including coverage of anatomy, medical terminology, pathophysiology, as well as the concepts, guidelines and rules of medical coding. Based on their significant teaching experience and affiliations with AAPC, authors Cynthia Stewart and Cynthia Ward bring a fresh approach to preparing for the exam. The book is organized around the principle that students need the tools to understand how to break cases down and how to translate services, procedures, and diagnosis into codes. The importance of understanding and knowing how to locate and use the guidelines inherent to the ICD, CPT and HCPCS coding manuals is emphasized throughout the book with the use of Spotlights and Mentor Coding Tips. Each chapter contains questions similar to those found on the CPC exam. In addition, each of the five units of the book ends with a Unit Exam, meant to be a cumulative review. Finally, the book concludes with a comprehensive practice exam using ICD-9. (An ICD-10 exam is also available to help prepare students for the ICD-10 proficiency exam in development by AAPC.) Additional practice is available through Connect Plus, McGraw-Hill's online assignment and assessment tool.
This easy-to-read guide provides a concise introduction to the engineering background of modern communication systems, from mobile phones to data compression and storage. Background mathematics and specific engineering techniques are kept to a minimum so that only a basic knowledge of high-school mathematics is needed to understand the material covered. The authors begin with many practical applications in coding, including the repetition code, the Hamming code and the Huffman code. They then explain the corresponding information theory, from entropy and mutual information to channel capacity and the information transmission theorem. Finally, they provide insights into the connections between coding theory and other fields. Many worked examples are given throughout the book, using practical applications to illustrate theoretical definitions. Exercises are also included, enabling readers to double-check what they have learned and gain glimpses into more advanced topics, making this perfect for anyone who needs a quick introduction to the subject.