Patent
Method for direct mode encoding and decoding
Kwang-Pyo Choi,Yun-Je Oh,Young-Hoon Joo,Byeungwoo Jeon,Bongsoo Jung,Kwanghyun Won +5 more
- 20 Feb 2009
27
TL;DR: Disclosed as discussed by the authors is a method of encoding a direct mode when coding moving images, the method includes finding a prediction and a cost for each of a plurality of direct modes including a backward-based temporal direct mode and a forward-time direct mode with respect to a current block to be encoded and determining one mode having the lowest cost as a result of comparing the costs as an optimal encoding mode, thereby performing encoding the direct mode.
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Abstract: Disclosed is a method of encoding a direct mode when coding moving images, the method includes finding a prediction and a cost for each of a plurality of direct modes including a backward-based temporal direct mode and a forward-based temporal direct mode with respect to a current block to be encoded and determining one mode having the lowest cost as a result of comparing the costs as an optimal encoding mode, thereby performing encoding the direct mode.
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Citations
Patent
Moving picture coding method, moving picture decoding method, moving picture coding apparatus, moving picture decoding apparatus, and moving picture coding and decoding apparatus
Hisao Sasai,Takahiro Nishi,Youji Shibahara,Toshiyasu Sugio,Kyoko Tanikawa,Toru Matsunobu +5 more
- 04 Mar 2013
TL;DR: In this article, a moving picture coding method for CBF signals is described, where the first processing unit is transformed into a frequency domain coefficient and quantized in the second processing unit.
82
Patent
Motion vector prediction in video coding
Frank Bossen,Sandeep Kanumuri +1 more
- 24 Sep 2010
TL;DR: In this paper, a method and apparatus for motion vector prediction and coding is described, which consists of deriving N motion vector predictors for a first block that has N motion vectors corresponding to N lists of reference frames and a current frame, including constructing one of the predictors when a second block that neighbors the first block and is used for prediction has at least one invalid motion vector, where N is an integer greater than 1.
68
Patent
Moving image encoding device, moving image decoding device, moving image coding method, and moving image decoding method
Itani Yusuke,Shunichi Sekiguchi,Sugimoto Kazuo +2 more
- 21 Jul 2011
TL;DR: In this paper, a control signal for providing a chroma format type of an input moving image signal is provided, and encoding and decoding are uniformly carried out for a plurality of chroma formats.
63
Patent
Moving picture coding method, moving picture coding apparatus, moving picture decoding method, and moving picture decoding apparatus
Toshiyasu Sugio,Takahiro Nishi,Youji Shibahara,Kyoko Tanikawa,Hisao Sasai,Toru Matsunobu,Kengo Terada +6 more
- 22 Nov 2013
TL;DR: The Moving Picture Coding (MPC) method as mentioned in this paper is a popular method for coding an input image that converts a value of a first parameter into a first binary signal, the first parameter identifying a type of a sample offset process to be applied to a reconstructed image corresponding to the input image, and coding at least a portion of the first binary signals through bypass arithmetic coding using a fixed probability.
22
Patent
Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording medium
Byeungwoo Jeon,Bong Soo Jung,Kwang Hyun Won +2 more
- 19 Feb 2008
TL;DR: In this article, a method and an apparatus of bi-prediction decoding and a recording medium capable of solving a problem of complexity in implementing the biprediction coding of image compression and improving the coding efficiency by more efficiently transmitting a motion vector based on a fact that the movement is linearly generated.
15
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Sadaatsu Kato,Minoru Etoh,Shunichi Sekiguchi,Hiroyuki Yamaguchi,Yasuhiro Ogiri,Satoru Adachi,Mitsuru Kobayashi +6 more
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TL;DR: In this article, a coding method for performing compression/coding of a moving picture by using a motion compensation prediction so as to code or decode motion information in video with a small overhead is presented.
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Direct mode coding for bipredictive slices in the H.264 standard
TL;DR: Alternative methods for the generation of the motion information for the DIRECT mode using spatial or combined spatiotemporal correlation are introduced and improvements on the existing Rate Distortion Optimization related to B slices within the H.264 codec are presented.
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Advanced bi-directional predictive coding of video frames
Kunal Mukerjee,Sridhar Srinivasan,Bruce Lin +2 more
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TL;DR: In this paper, techniques and tools for coding/decoding of video images, and in particular, B-frames, are described, where a video encoder/decoder determines a fraction for a current image in a sequence.
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Patent
Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures
Alexandros Tourapis,Shipeng Li,Feng Wu,Gary J. Sullivan +3 more
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TL;DR: In this article, the authors used Motion Vector Predictors (MVPs) for encoding or decoding of motion parameters within the calculation of the motion information in B pictures and/or P pictures.
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Adaptive interpolation filters for video coding
Dmytro Rusanovskyy,Kemal Ugur +1 more
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TL;DR: In this article, a predefined base filter has fixed coefficient values and a prediction signal representative of the difference between a video frame and a reference image is calculated from the reference image based on a pre-defined base filter and motion estimation performed on the video frame.
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