ABSTRACT
Mobile video applications arise in a wide range of environments, such as battlefield intelligence, surveillance, reconnaissance, security monitoring, emergency response, disaster rescue, environmental tracking, tele-medicine, and multimedia systems in consumer electronics. Video compression in wireless mobile environments has to meet the following challenges: power awareness, ensuring quality of service, content adaptive, and fast encoding speed. This chapter explains a methodology to meet the PQRS goals in ubiquitous video environment under power constraints, and techniques for efficiently utilizing the energy supply while preserving desirable video quality. The source coding schemes recommended by the international standardization groups are very detailed for achieving high-bit rate reduction under the constraint of the highest possible picture quality. The chapter provides an approach for minimizing the total power consumption of a mobile transmitter due to source compression, channel coding, and transmission subject to a fixed end-to-end source distortion.
