LOW POWER LOSSSLESS COMPRESSION OF REAL TIME MPEG4 VIDEO ENCODING AND DECODING USING VHDL AND MATLAB
This paper presents a simple model of complex real time MPEG-4 video encoding and decoding using simple techniques in VHDL and MATLAB to provide reasonable compression while using only less power and resources on FPGA. This implementation works on low power and less number of clock cycles. The basic video codec module consists of a video encoder and a decoder. The encoder module consists of blocks for temporal modeling, spatial modeling and Entropy encoding. Temporal block has a difference block whereas spatial block consists of 2-D DCT, Quantizer and a 2-D IDCT. Sample frames of real time video has been processed using the codec module resulting in an average compression of 64.6% It can be applied in areas where low bit rate, high quality video is required. The first 5 sections in this paper represents the concepts and theories used, section 6 onwards represents the actual implementation of the module.
MPEG-4 video codec Temporal modeling Spatial modeling Entropy encoding Discrete Cosine Transform VLC
Aswathy Prasad Kamya Krishnan Karthika Parvathy Rajesh Kannan Megalingam
Department of Electronics and Communication Amrita Vishwa Vidyapeetham, Kollam, Kerala, India
国际会议
北京
英文
2356-2360
2009-08-08（万方平台首次上网日期，不代表论文的发表时间）