 Hello friends, Myself Elia Arzandani, Assistant Professor from Department of Electronics, Valkan Institute of Technology, Solapur. Today we are going to see the topic MPEG that is Moving Pictures Expert Group. This comes under the subject which is Audio Video Engineering. So basically what are the learning outcomes in this topic? Here at the end of the topic the students will able to differentiate between different types of digital video comparison formats used during the recording process and the students can illustrate the characteristics of MPEG and its different types. So first we are going to see what is meant by digital comparison. Here there are as we know there are different formats in the electronic system and in the computer system here Microsoft AVI is the first format which is generally used for videos, QuickTime is the another format which is generally used for the digital videos MPEG, DIVX and WMV these are the different video formats which are generally used for the comparison. So how a digital video comparison is done? Firstly we will see the standards which are established for digital video comparisons. Here basically there are two standards which are established for digital video comparison. First is known as JPEG that is Joint Photographic Experts Group and second one is MPEG that is Motion Pictures Expert Group. So how a digital video comparison is done? Here the this is done by using the two methods or the two standards as we have seen. So these are the two standards JPEG and MPEG. In the JPEG the digital video comparison is done. Here first the same areas are identified in an image and then these are stored in the form of pixels and this reduces the graphic file image. In MPEG the key frames are identified from n number of frames and greater comparison ratio is provided than JPEG. So what is MPEG? So basically MPEG is a real-time video comparison algorithm where MPEG 4 generally this is used for the n number of times in the multimedia where digital audio and video coding and decoding is done and it is the preferred standard. Nextly MPEG 7 this is generally used for interfacing the different audio and video formats for the different instruments. Here it generally integrates information about motion video elements with their use. So file size and formats. So as we are dealing with the digital video compression we must also know the file size and the different formats which are used for the digital video compression. So some important file size and formats are considered. File size in digital digitized video which includes first frame rate second image size and color depth. So these three are the important considerations during the digital used during the digital video compression. Nextly the different MPEG standards as we know MPEG we have seen MPEG is nothing but moving pictures expert group so these are having some different standards. So MPEG 1 MPEG 2 MPEG 4 MPEG 7 MPEG 1 generally deals with the audio type of the information MPEG 2 deals with the enhanced audio and video type of the standard MPEG 4 generally deals with the audio as well as video where synchronization is maintained and MPEG 7 generally deals with the developed versions of digital audio and video nowadays which we are using known as HD transmission and reception. MPEG 21 generally this also deals basically deals with the video formats only as we have seen the audio is generally HD type whereas the videos which are nowadays developing at a faster rate where we are going for the blue rate type and for the ultra HD type of the videos this MPEG deals with the MPEG 21. So what is MPEG standards? So these are the standards which were established in 1988 where by some committees which were ISO I oblique IEC committees which were the Indian international standard organizations which is also known as international electro technical commissions joint technical committee this was also considered next the there was a subcommittee of 29 people and these were having a working group of 11 people first setting up the MPEG standards. Next developed standards were used for coded representation of a moving picture and its associated audio and sometimes collaborating with the other standard organizations such as VCEG which is the international telecom union T type of video coding experts group. Next w3c that is worldwide web this committee was also considered as the it visualizes the MPEG type of the standards which are used for video and audio and web 3d which is nowadays used mostly for the 3d type of audio and video so overview of MPEG so what we here the MPEG one this was established in 1992 this is generally used for coding of video and audio for storage media which includes a CD-ROM here the data rate for coding of video and audio is 1.5 mbps examples are VCD and mp3 MPEG 2 which was developed in 1994 here this also deals with coding of video and audio for transport and storage at a data rate of 4 to 80 mbps here the storage is also done and it is also transported that means transmitted and received at a data rate of 4 to 80 mbps here the examples are digital television that is HDTV and DVD MPEG 4 which was the first version was developed in 1999 second in 2000 and version 3 was developed in 2001 this is generally used for coding of natural and synthetic media objects here mainly considered the considerations were done for the natural and synthetic media objects which included web as well as mobile applications next MPEG 7 which was developed in 2001 which included the multimedia content description for audio video materials next media searching and filtering next MPEG 21 which is used nowadays which was also developed in 2001 which used or which had a work of multimedia framework for integration of multimedia technologies a transparent and augmented use of multimedia resources these generally deals with the type of artificial intelligence also so students these are the assignments for you people first discuss the term MPEG second write down the difference between JPEG and MPEG next what are the different formats of MPEG so these are the references for you by using this you can complete the assignments thank you for watching the video