Patent
Motion image coding apparatus adaptively controlling reference frame interval
TLDR
In this article, a motion image coding apparatus providing enhanced image quality as compared with the prior art includes a coding unit for coding first, second and third frames, a prediction efficiency calculating circuit for calculating prediction efficiency in inter-frame prediction, in coding by the coding unit using said first or second frame as a reference frame, and a reference-frame interval determining circuit for determining a referenceframe interval which is a time interval between the first and second frames.Abstract:
A motion image coding apparatus providing enhanced image quality as compared with the prior art includes a coding unit for coding first, second and third frames, a prediction efficiency calculating circuit for calculating prediction efficiency in inter-frame prediction, in coding by the coding unit using said first or second frame as a reference frame, and a reference frame interval determining circuit for determining a reference frame interval which is a time interval between the first and second frames, time interval between the second frames and time interval between the first frames.read more
Citations
More filters
Patent
Image processing device and method
TL;DR: In this paper, an image processing device and a method that make it possible to suppress block noise is presented, which can be applied to an image processor and can be used to suppress noise in a filter process determination unit.
Patent
Media coding for loss recovery with remotely predicted data units
Albert S. Wang,Ming-Chieh Lee +1 more
TL;DR: In this article, an improved loss recovery method for coding streaming media classifies each data unit in the media stream as an independent data unit, a remotely predicted unit (R unit), or a predicted data unit (P unit), each of which is organized into independent segments having an I unit, multiple P units and R units interspersed among the P units.
Patent
Number of reference fields for an interlaced forward-predicted field
TL;DR: In this paper, a video decoder processes a first signal indicating whether an interlaced forward-predicted field has one or two reference fields for motion compensation, and then processes a second signal identifying the one reference field from among the two reference field.
Patent
Video encoding device, video encoding method, video encoding program, video decoding device, video decoding method, and video decoding program
TL;DR: In this paper, a video encoding device including a region division section for dividing a frame image constituting video data into a plurality of regions as encoding target regions, an encoding section for encoding an image of each region, an inverse transformation section and an addition section for generating reproduced image of the encoded image, a storage section for storing reproduced images, and a prediction generation section for searching a region which is highly correlated to a reproduced image from a template region, which is adjacent to the region of the encoding target image in a predetermined positional relationship and is a part of the reproduced image, from
Patent
Use of frame caching to improve packet loss recovery
TL;DR: In this article, a method for using periodical and synchronized frame caching within an encoder and its corresponding decoder is described, where the decoder discovers packet loss, it informs the encoder which then generates a frame based on one of the shared frames stored at both the encoding and decoding.
References
More filters
Patent
Image signal coding system
TL;DR: In this article, an adaptive blocking coding system selects an effective blocking of an input image signal to be encoded in accordance with the correlation between fields, even if motion is detected between the fields, and searches for motion from both odd and even fields of a frame for producing a motion compensated prediction signal in order to provide high-efficient coding.
Patent
Method and device for detecting motion vectors
TL;DR: In this article, a method of detecting motion vectors within a predetermined search range for motion-compensation predictive coding is disclosed, which includes the steps of searching for first motion vectors between two frames which are separated from each other in a time dimension by a first frame distance.
Patent
Moving image encoding apparatus
TL;DR: In this paper, a prediction structure determination unit determines positions for one or more frames to be subjected to the intra-frame coding in the first mode, and a frames to being subjected to frame interpolation prediction in the second mode in accordance with at least the number of frames corresponding to inter-frame prediction coding.
Patent
Moving image encoding system
TL;DR: In this paper, a prediction structure deciding circuit 25 decides the arrangement of frames to perform in-frame encoding, frame to perform inter-frame prediction and frame interpolation prediction corresponding to the quantizing step width ratios assigned to the number of frames between the frames to encode the input image and the output image.