Patent
Moving image decoder
Hashimoto Ryoji,Onoe Takao,Tsutsui Hiroshi,Igai Tomohiro +3 more
- 29 Jul 2010
5
TL;DR: In this paper, a moving image decoder for estimating the distribution model of the differential image of predicted images, calculating a bit likelihood using the estimated distribution model and improving the performance of decoding utilizing additional information.
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Abstract: PROBLEM TO BE SOLVED: To provide a moving image decoder for estimating the distribution model of the differential image of predicted images, calculating a bit likelihood using the estimated distribution model and improving the performance of decoding utilizing additional information. SOLUTION: The moving image decoder 100 includes an intra decoding part 101, a conversion part 102, a quantization part 103, a decoding-utilizing-additional-information part 104, a reconstruction part 105, an inverse conversion part 106, a frame memory 107, a predicted image generation part 108, a difference calculation part 151, a conversion part 152, a distribution model estimation part 153, and a bit likelihood estimation part 154. The difference image of the predicted image used for generating the predicted image is DCT transformed, a distribution model is estimated from a transformed transformation coefficient, the bit likelihood is calculated using the estimated distribution model and supplied to decoding utilizing additional information. COPYRIGHT: (C)2010,JPO&INPIT
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Citations
Patent
Moving picture decoding apparatus, method and program, moving picture encoding apparatus, method and program, and moving picture encoding system
Takahiro Yamazaki,貴宏 山崎 +1 more
- 19 Feb 2009
TL;DR: In this article, a DCV-based moving picture decoding scheme is proposed to decode a non-key frame (Wyner-Ziv frame) using a key frame decoding and a predicted image forming.
8
Patent
Moving image encoder apparatus, moving image decoder apparatus, and moving image transmission system
Yamazaki Takahiro
- 24 Sep 2010
TL;DR: In this paper, a Wyner-Ziv frame encoder is used to form the predictive image of an image based on coded key frames and determine, according to the fallibility of the transform coefficients of the predicted image with respect to the original image, the amount of error correction codes to be transmitted.
7
Patent
Image estimation method
Shantanu Rane,A Cohen Robert,Vetro Anthony,Kazuo Sugimoto +3 more
- 09 Apr 2015
TL;DR: In this paper, the authors proposed a method for performing distributed source coding (DSC) of an image using a statistically correlated side information image, in which a desired image is estimated by retrieving and extracting coding modes from an encoded side-information image for each bitplane in the encoded side image, syndrome bits or parity bits are decoded to obtain an estimated bitplane of quantized transform coefficients of the desired image.
Patent
Moving image encoding device and program, moving image decoding device and program, and moving image distribution system
Sakomizu Kazuhito
- 08 Sep 2014
TL;DR: In this article, a moving image distribution system that is capable of reducing a code amount without causing a lowering of the quality of a decoded image is presented. But, the problem of reducing the code amount of a non-key frame is not addressed.
Patent
Moving image decoding apparatus and program, and moving image encoding system
Kazuhito Sakomizu
- 06 Feb 2014
TL;DR: In this paper, a moving image decoding apparatus consisting of a plurality of prediction image generating means that generate prediction images by different methods, respectively; and prediction image combining means that combines the plurality of predicted images generated by the respective prediction image generation means to obtain the prediction image to be given to the decoding means.