Motion Compensation Methods Using Variable-Size and Variable-Shape Blocks.
نویسندگان
چکیده
منابع مشابه
High-Performance Wavelet-Based Video Coding Using Variable Block-Size Motion Compensation and Adaptive Arithmetic Coding
In this paper, we present a wavelet-based video coding algorithm within a conventional hybrid framework of temporal motion-compensated prediction and transform coding. Our proposed algorithm involves the incorporation of multi-frame motion compensation as an effective means of improving the quality of the temporal prediction. For an efficient coding control, we follow the rate-distortion optimi...
متن کاملVariable Block size Motion Estimator
Background. The class on complexity goes through how to design a fixed block size motion estimator. It is useful to have reviewed that class before proceeding with this document. Basically, often in video the only difference between much of the content in subsequent frames is motion (imagine panning a camera slowly over a fixed scene). If this is true the difference between subsequent frames ca...
متن کاملVariable Size Block Matching Motion Coding
Recently developed object-based video coding schemes require the estimation of motion in arbitrary-shaped objects. A quad-tree structured variable size block matching technique is described. The inherent motion is represented by significantly fewer blocks than if conventional fixed size block matching had been used to provide a similar quality prediction.
متن کاملVariable size finite-state motion vector quantization
In this paper, we present an algorithm which combines Vector Quantization (VQ) techniques with variable size Block Matching Algorithms (BMA) for motion compensated image sequence coding. First, an algorithm which decomposes the image frame into blocks of diierent sizes with similar motion parameters is proposed. Since the algorithm is based on splitting the block that would result in the highes...
متن کاملA Fast Motion Vector Search Algorithm for Variable Blocks
A fast motion estimation (ME) algorithm is proposed to search motion vectors for variable blocks. The proposed method is based on the successive elimination algorithm (SEA) using sum norms to find the best estimate of the motion vectors and to implement efficient calculations for variable blocks. The proposed ME algorithm is applied to the Joint Video Team (JVT) encoder that performs a variable...
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 Institute of Image Information and Television Engineers
سال: 1999
ISSN: 1881-6908,1342-6907
DOI: 10.3169/itej.53.1045