A fast efficient architecture for MPEG-4 zerotree encoder
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 629-632 vol.1
Tóm tắt
This paper presents a novel architecture of MPEG-4 zerotree encoder. Under the architecture, a fast technique of label coefficients is proposed to reduce the recursive scan. It is achieved by exploiting the feature of the MPEG-4 zerotree symbol alphabet. A new combined structure of ZTR address buffer and the significant flag bit is described. It can simplify the skipping of the significant coefficients and locating the descendent coefficients of ZTR/VZTR. Furthermore, a preprocessor is given for independent encoding of each tree in individual bitplane.
Từ khóa
#MPEG 4 Standard #Computer architecture #Encoding #Quantization #Scalability #Entropy coding #Chaos #Laboratories #Very large scale integration #Energy consumptionTài liệu tham khảo
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