Adaptive Initial QP Determination Algorithm for Low Bit Rate Video Coding
نویسندگان
چکیده
منابع مشابه
PSNR-based Initial QP Determination for Low Bit Rate Video Coding
In H.264/AVC, the first frame of a group of pictures (GOP) is encoded in intra mode which generates a large number of bits. The number of bits for the I-frame affects the qualities of the following frames of a GOP since they are encoded using the bits remaining among the bits allocated to the GOP. In addition, the first frame is used for the inter mode encoding of the following frames. Thus, th...
متن کاملVariable Frame Rate for Very Low Bit-Rate Video Coding
Motion description of objects time evolution is often bit-rate wasting even if computed at a low fixed ffame rate. Bit-rate reduction can be achieved taking advantage of the inactivity periods: in such time intervals there is no need for motion coding, as an accurate description of the scene can be obtained only considering the frame diflerence information. We propose to estimate the motion bet...
متن کاملEnhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
Nowadays video coding approach is a major key in many applications for easy transmission and storage consumption. The process of transformation is based on the empirical wavelet transform (EWT). The encoding process of video data provides secure and less consumption of storage and the reconstruction process consists of the reverse process with the extraction. In this paper, the coding of video ...
متن کاملReduction of Coding Artifacts in Low-bit-rate Video Coding
The compression of digital video data has many applications in the transmission and storage of video sequences. For moderate compression ratios there are many techniques which can provide satisfactory performance, for high compression ratios, however, typical compression techniques produce noticeable artifacts in the reconstructed video. This paper proposes a technique for the post-processing o...
متن کاملVery low bit-rate color video coding using adaptive subband vector quantization with dynamic bit allocation
In this correspondence a novel adaptive VQ based subband coding scheme for very low bit rate coding of video sequences is presented. Overlapped block motion estimation/compensation is employed to exploit interframe redundancy. A 2D wavelet transform (WT) is applied to the resulting displaced frame diierence (DFD) signal. The WT coeecients are encoded using an adaptive subband vector quantizatio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Korean Institute of Information and Communication Engineering
سال: 2010
ISSN: 2234-4772
DOI: 10.6109/jkiice.2010.14.9.1957