An important merit of the MPEG-4 video standard is that it not only provided tools and algorithms for enhancing the compression efficiency of existing MPEG-2 and H.263 standards, but also contributed key innovative solutions for new multimedia applications such as: real-time video streaming to PCs and cell-phones over Internet and wireless networks, interactive services, and multimedia access. Many of these solutions are currently used in practice or have been important step-stones for new standards and technologies.In this lecture, the authors focus on three key innovations of MPEG-4 video that will continue to serve as an inspiration and basis for emerging standards, products, and technologies. The three topics highlighted in this lecture are object based coding and scalability, Fine Granularity Scalability (FGS), and error resilience tools. This lecture is aimed at engineering students as well as professionals interested in learning about these MPEG-4 technologies for multimedia streaming and interaction. Finally, this lecture is not aimed as a substitute or manual for the MPEG-4 standard, but rather as a tutorial focused on the principles and algorithms underlying it.van der Schaar, Mihaela is the author of 'MPEG-4 Beyond Conventional Video Coding Object Coding, Resilience And Scalability', published 2006 under ISBN 9781598290424 and ISBN 1598290428.