Video compression using MPEG 7-MBBMC: techniques for communication

Communication is termed as exchanging the information (audio, video, text and image) from one end (transmitter) to another end (receiver). When video data are compressed and transmitted to another side, compression reduces the bandwidth size and memory required to transmit the video. Some traditional techniques are used in video transmission but it includes drawbacks, such as more compression time and low quality due to compression. To overcome these drawbacks the MPEG7-MBBMC (Modified Block Based Motion Compensated) technique is developed. Here the input video signals are collected from the dataset and the signals are splitted into three bands. Discrete Wavelet Transform (DWT) is applied for each band and quantization process occurs. The DWT and quantization process are applied in the MPEG7 compression, which offers high compression factors. Next, encoder is applied to convert the packets into small packets by using modified block based motion compensated (MBBMC) technique. The Motion compensation establishes a correspondence between elements of nearby images in the video sequence. The Forward Error Correction (FEC) is used to reduce the distortion in the encoder video packet. Then the Channel Pattern Integration (CPI) is applied to find the best available channel. The encoded video packets are transmitted by the best available channel. In receiver side the error correction code is applied to decode the video packets and reconstructs the decoded packet by decompression. It improves the quality of the video and in future it will help for much development in the field of multimedia.