Journal ArticleDOI
Time-recursive deinterlacing for IDTV and pyramid coding
Feng-Ming Wang,Dimitris Anastassiou,Arun N. Netravali +2 more
- Vol. 2, Iss: 3, pp 365-374
Reads0
Chats0
TLDR
Time-recursive motion compensation prediction is introduced, in which all previously displayed history is used to predict the missing pixel values, and how to apply this algorithm to pyramid coding to achieve a better compression rate and compatibility with other lesser resolution standards is discussed.Abstract:
Most improved-definition television (IDTV) receivers use progressive scanning to reduce artifacts associated with interlacing (e.g. interline flicker, line crawl). Some novel techniques of motion compensated interpolation of the missing lines of interlaced monochrome and color sequences, reducing the artifacts associated with interlacing, and effectively increasing the vertical resolution of the image sequences are proposed. Time-recursive motion compensation prediction is introduced, in which all previously displayed history (not just the previous field) is used to predict the missing pixel values. The next future field is also used for the same purpose, by a lookahead scheme. Motion estimation is done using a quadtree-based segmented block-matching technique with half-pixel accuracy. To avoid artifacts and obtain full resolution in still regions, such as background, motion adaptation is also used. How to apply this algorithm to pyramid coding to achieve a better compression rate and compatibility with other lesser resolution standards is discussed. >read more
Citations
More filters
Journal ArticleDOI
Deinterlacing-an overview
G. de Haan,Erwin B. Bellers +1 more
TL;DR: This paper outlines the most relevant proposals, ranging front simple linear methods to advanced motion-compensated algorithms, and provides a relative performance comparison for 12 of these methods.
Patent
Scalability techniques based on content information
Vijayalakshmi R. Raveendran,Gordon Kent Walker,Tao Tian,Phanikumar Bhamidipati,Fang Shi,Peisong Chen,Sitaraman Ganapathy Subramania,Seyfullah Halit Oguz +7 more
TL;DR: In this article, a method of processing multimedia data includes classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification.
Patent
Methods and device for data alignment with time domain boundary
Vijayalakshmi R. Raveendran,Gordon Kent Walker,Tao Tian,Phanikumar Bhamidipati,Fang Shi,Peisong Chen,Sitaraman Ganapathy Subramania,Seyfullah Halit Oguz +7 more
TL;DR: In this article, a method of processing multimedia data includes obtaining content information of multimedia data, and encoding the multimedia data so as to align a data boundary with a frame boundary in a time domain, wherein said encoding is based on the content information.
Journal ArticleDOI
Sub-pixel motion estimation with 3-D recursive search block-matching
TL;DR: An extension of the 3-D Recursive Search Block-Matching algorithm is presented that provides a sub-pixel accuracy of the estimated motion vectors, which significantly broadens the applicability of the algorithm in the area of interlaced-to-sequential scan conversion and coding.
Patent
Content classification for multimedia processing
TL;DR: An apparatus and method for processing multimedia data, such as, for example, video data, audio data, or both video and audio data for encoding utilizing a determined content classification is claimed as mentioned in this paper.
References
More filters
Journal ArticleDOI
The Laplacian Pyramid as a Compact Image Code
Peter J. Burt,Edward H. Adelson +1 more
TL;DR: A technique for image encoding in which local operators of many scales but identical shape serve as the basis functions, which tends to enhance salient image features and is well suited for many image analysis tasks as well as for image compression.
Journal ArticleDOI
VLSI Array processors
TL;DR: A general overview of VLSI array processors and a unified treatment from algorithm, architecture, and application perspectives is provided in this article, where a broad range of application domains including digital filtering, spectrum estimation, adaptive array processing, image/vision processing, and seismic and tomographic signal processing.
VLSI array processors
TL;DR: A general overview of VLSI array processors is provided and a unified treatment from algorithm, architecture, and application perspectives is provided.
Journal ArticleDOI
An overview of the basic principles of the Q-Coder adaptive binary arithmetic coder
TL;DR: The Q-Coder as mentioned in this paper is a new form of adaptive binary arithmetic coding, which is derived from the basic concepts introduced by Rissanen, Pasco, and Langdon, but extends the coding conventions to resolve a conflict between optimal software and hardware implementations.
Journal ArticleDOI
Array architectures for block matching algorithms
T. Komarek,P. Pirsch +1 more
TL;DR: In this paper, a description of VLSI architectures for block-matching algorithms utilizing systolic array processors is given, and a well-known mapping procedure has been applied to derive the array processors from the algorithm.