TY - GEN
T1 - Dynamic GOP structure determination for real-time MPEG-4 advanced simple profile video encoder
AU - Wang, Yu Lin
AU - Wang, Jing Xin
AU - Lai, Yen Wen
AU - Su, Wen-Yu
PY - 2005/12/1
Y1 - 2005/12/1
N2 - MPEG4 Advanced Simple Profile video provides I, P, andB-typefram esineachGOP(GroupOfPictures). To maximize the coding efficiency, it is important to determine the distribution of the three frame types, also called the GOP structure. In this paper, the GOP structure is determined dynamically in real time by using the information, such as Sad (Sum of Absolute Difference) and Mad (Mean of Absolute Difference), generated in the encodingprocessandlittleam ountofcom putationis used. The algorithm first determines whether the current frame is an Intrapicture oran Interpicture. If it is an Interpicture, one has to decide whether i ti saP_picture or a B_picture.Nom oret han4 consecutiveB_picturescanbe employed to reduce the video buffer size. The proposed methodist estedoverawi derange of video sequences at different data rate conditions and produces consistent improvementcom paredt ofi xedGOP methods.
AB - MPEG4 Advanced Simple Profile video provides I, P, andB-typefram esineachGOP(GroupOfPictures). To maximize the coding efficiency, it is important to determine the distribution of the three frame types, also called the GOP structure. In this paper, the GOP structure is determined dynamically in real time by using the information, such as Sad (Sum of Absolute Difference) and Mad (Mean of Absolute Difference), generated in the encodingprocessandlittleam ountofcom putationis used. The algorithm first determines whether the current frame is an Intrapicture oran Interpicture. If it is an Interpicture, one has to decide whether i ti saP_picture or a B_picture.Nom oret han4 consecutiveB_picturescanbe employed to reduce the video buffer size. The proposed methodist estedoverawi derange of video sequences at different data rate conditions and produces consistent improvementcom paredt ofi xedGOP methods.
UR - http://www.scopus.com/inward/record.url?scp=33750571108&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750571108&partnerID=8YFLogxK
U2 - 10.1109/ICME.2005.1521418
DO - 10.1109/ICME.2005.1521418
M3 - Conference contribution
AN - SCOPUS:33750571108
SN - 0780393325
SN - 9780780393325
T3 - IEEE International Conference on Multimedia and Expo, ICME 2005
SP - 293
EP - 296
BT - IEEE International Conference on Multimedia and Expo, ICME 2005
T2 - IEEE International Conference on Multimedia and Expo, ICME 2005
Y2 - 6 July 2005 through 8 July 2005
ER -