Patent
High efficiency encoding and decoding of picture signals and recording medium containing same
Katsuji Igarashi,Jun Yonemitsu,Yoichi Yagasaki,Yasushi Fujinami,Tomoyuki Sato,Motoki Kato,Teruhiko Suzuki +6 more
TLDR
In this paper, an encoder considers a frame representing a picture as comprised of areas and decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area.Abstract:
An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.read more
Citations
More filters
Patent
Moving picture coding method and moving picture decoding method
TL;DR: A moving picture coding apparatus for inter-picture predictive coding for pictures constituting a moving picture is provided in this article, where a coding unit for performing predictive error coding for image data, a decoding unit for decoding for an output from the coding unit, a reference picture memory for holding output data from the decoding unit, and a motion vector detection unit for detecting motion vectors on the basis of the decoded image data stored in the memory.
Patent
Skip macroblock coding
Sridhar Srinivasan,Pohsiang Hsu +1 more
TL;DR: In this article, skip macroblocks are defined as a predicted macroblock whose motion is equal to its causally predicted motion and which has zero residual error, and the encoder and decoder use a raw coding mode to allow for low latency applications.
Patent
Multi-format audio/video production system
Kinya Washino,Barry H. Schwab +1 more
TL;DR: In this paper, an audio/video production system facilitates professional quality image manipulation and editing using an enhanced general-purpose hardware A program input may be translated into any of a variety of graphics or television formats, including NTSC, PAL, SECAM and HDTV, and stored as data-compressed images, using any of several commercially available methods such as Motion JPEG, MPEG, etc.
Patent
Computing collocated macroblock information for direct mode macroblocks
TL;DR: In this paper, video decoding innovations for multithreading implementations and graphics processor unit (GPU) implementations are described, where a decoder uses innovations in the areas of layered data structures, picture extent discovery, a picture command queue, and/or task scheduling for multi-reading.
Patent
Efficient motion vector coding for video compression
TL;DR: In this article, the x and y components of motion vectors are jointly coded by assigning a single variable length code corresponding to the pair of components, rather than a separate code for each component.
References
More filters
Patent
Apparatus and method for adaptively compressing successive blocks of digital video
Edward A. Krause,Paik Woo H +1 more
TL;DR: In this article, a set of pixel data presented in a field format is compressed to provide a first compressed video signal and then the same set of pixels are compressed in a frame format and used to produce a second compressed signal.
Patent
Adaptive coding and decoding of frames and fields of video
Atul Puri,Rangarajan Aravind +1 more
TL;DR: In this article, an adaptive and selective coding of digital signals relating to frames and fields of the video images is proposed for video conferencing applications and high definition television, among other things.
Patent
Adaptive motion compensation for digital television
TL;DR: In this article, a method and apparatus for processing digital video signals for transmission in a compressed form is provided. But the method is not suitable for the transmission of high-resolution video signals.
Patent
Compression method for interlace moving image signals
Ueda Motoharu,Yasuhiro Yamada +1 more
TL;DR: In this article, prediction coding is used as the method of compressing image signals, which divides an input frame image into input field images, divides a comparison frame image to comparison field images and makes an extracted motion vector which is smaller than the value for evaluation of prediction error, the motion vector for motion compensation prediction coding.
Patent
Adaptive predictive coding system for television signals
TL;DR: In this article, a comparison operation is made between restored values obtained by the intra-field predictive coding and the inter-ground predictive coding, and one of coders which has provided a restored value closer to a true picture element value is adaptively used as an input signal coder.