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7397856 |
Method and apparatus for storing and processing picture information of temporally successive pictures
A method and apparatus are provided for storing and processing picture information of temporally successive pictures wherein in each case at least one picture area is selected from each temporally...
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7397850 |
Reciprocal index lookup for BTSC compatible coefficients
An algorithm calculates spectral compression/expansion filter coefficients using a value proportional to a reciprocal of a feedback/feedforward signal and stores the coefficients to a lookup table....
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7397858 |
Maintaining a plurality of codebooks related to a video signal
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of receiving an encoded video signal having a plurality of headers; maintaining a plurality of...
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7397852 |
Image processing apparatus and method, and image processing program
Picture data is compressed and encoded in consideration of visual characteristics of human beings against colors. A color of pixels is detected corresponding to color difference components Cb and...
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7397283 |
Digital A/V transmission PHY signaling format conversion, multiplexing, and de-multiplexing
A circuit includes a configurable receiver circuit, a multiplexer or demultiplexer coupled to the configurable receiver circuit, and a configurable driver circuit coupled to the multiplexer or...
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7397857 |
Method for transformation-coding full motion image sequences
In the case of a method for transformation encoding of moving-image sequences, motion vectors are estimated block-by-block, with which said motion vectors a motion compensation is carried out. The...
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7397963 |
Method and apparatus for storing bitplanes of coefficients in a reduced size memory
A method and apparatus for storing bitplanes of coefficients in a reduced size memory is disclosed. In one embodiment, a method for encoding coefficients comprises applying one or more wavelet...
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7397851 |
Separate plane compression
A method of distinguishing between regions of an image, separating and masking the original image into multiple image planes, and compressing each separated image plane with a compression method...
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7397957 |
Discrete wavelet transform unit and method for adaptively encoding still image based on energy of each block
Disclosed is a discrete wavelet transform (DWT) unit for encoding and decoding still images based on the energy of each block. The DWT unit includes an energy calculating section for calculating...
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7397855 |
Rate controlling method and apparatus for use in a transcoder
A rate controlling method for computing a reference quantization parameter is provided, for use in a transcoder having a variable length decoder, an inverse quantizer, a quantizer and a variable...
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RE40415 |
Picture signal transmitting method and apparatus
A picture type identifier, indicating one of intra-picture coding (an I-picture), forward or backward predictive coding (a P-picture) and bi-directionally predictive coding (a B-picture), is...
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7394855 |
Error concealing decoding method of intra-frames of compressed videos
A method conceals errors in an infra-frame of compressed video. The intra-frame is decoded to multiple macroblocks. Each macroblock including pixels arranged in a rectangular array. A lost...
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7394850 |
Method and apparatus for performing digital-to-digital video insertion
Techniques for seamlessly inserting a second compressed video stream (e.g., for an advertisement) into a first compressed video stream (e.g., for a program video), which can be implemented in an ad...
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7394856 |
Adaptive video prefilter
A method for adaptively filtering a video signal prior to encoding is provided. The method initiates with calculating a local gradient indicative of a region type. Then, a weight factor is...
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7394853 |
Motion vector coding method and motion vector decoding method
A motion vector coding method and apparatus that improves efficiency of coding motion vectors when a current block is coded using a plurality of motion vectors. The apparatus includes a motion...
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7394851 |
Encoding apparatus and method, and multiplexing apparatus and method
An encoder to encode video streams representing a moving picture is provided whose video encoder calculates a bit storage quantity an STD video buffer should have when input of a stream ending with...
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7395321 |
Method and system for prioritized bit rate conversion
The invention provides a system and a method for providing a multiplexed sequence, the multiplexed sequence including at least one sequence of basic media data units/modified basic media data...
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7394852 |
Method for detecting a moving object in motion video and apparatus
An apparatus for detecting a moving object in motion video comprises a macro-block determining section for determining the background/non-background of each macro-block of a reconstructed video...
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7394854 |
Signal transmission system
A signal transmission system: that includes a signal transmission unit ( 101 ) that includes a MPEG decoder ( 102 ), which receives digital broadcasting and outputs a luminance signal Y and two...
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7394966 |
Image communication apparatus for wireless communication of digital images, and method thereof
An image capture apparatus includes an image capture unit, a recording unit, a wireless communication unit and a control unit. The recording unit records digital image captured by the image capture...
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7391931 |
Method, apparatus, and program for moving image synthesis
A single high resolution frame is obtained from a plurality of frames sampled from moving image data, regardless of movement of a subject included in the frames. Patches are provided in a plurality...
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7391809 |
Scalable video transcoding
A scalable video transcoder with limited drifting error is disclosed. The transcoder accumulates re-quantization errors of I-frames or P-frames. The accumulated errors are only selectively...
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7391810 |
High-speed motion estimator and method with variable search window
A motion estimation apparatus and method capable of reducing the amount of computation required for motion estimation in the compression of moving images are provided, including a first part for...
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7391812 |
Adaptively post filtering encoded video
Some embodiments of the invention provide a method of decoding an encoded video signal that includes a plurality of successive encoded images. The method initially receives an encoded image of the...
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7391916 |
Quantization matrix adjusting method for quality improvement
A quantization matrix adjusting method for quality improvement by scaling down the default quantization matrix. The adjusting method comprises the steps of: updating a used bits BB_X and an average...
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7391808 |
System and method for upgrading processing capabilities of a media center
Video data encoded according to new compression standards may be processed by an existing client terminal using an adaptive module that transcodes the video data into a format compatible with the...
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7391807 |
Video transcoding of scalable multi-layer videos to single layer video
A method transcodes a compressed multi-layer video bitstream that includes a base layer bitstream and an enhancement layer bitstream. The base and enhancement layers are first partially decoded,...
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7391811 |
Stereoscopic image encoding and decoding device multiplexing high resolution added images
A left-eye image signal and a right-eye image signal are supplied to a pixel structure converter of a stereoscopic image pre-processor, and multiplexed, so to form one image, an interlace image is...
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7388912 |
Systems and methods for adjusting targeted bit allocation based on an occupancy level of a VBV buffer model
Methods and apparatus are provided to advantageously improve bit rate control in a video encoder, such as an MPEG video encoder. The targeted bit allocation for a picture to be encoded is...
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7388915 |
Video data coding/decoding apparatus and method
A video data coding/decoding apparatus includes: an encoder dividing a partition partitioned by a data partitioning technique into certain blocks, channel-coding the divided block data and...
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7388917 |
Image-processing method and image processor
Image data is separated from three lines of image data in accordance with a storage capacity of a source memory. The separated image data is transferred to the source memory, Several pieces of...
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7388913 |
Down scaling of images
A Discrete Cosine Transform (DCT) for an entire original sequence is obtained using the DCT coefficients representing the first half and the second half of the original sequence. This is useful...
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7388867 |
Data networks
A data network in which at least one switch is provided with the facility for estimating current network demands using a polygonal approximation to scaled cumulant generating function. The...
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7388914 |
Moving picture coding and/or decoding systems, and variable-length coding and/or decoding system
A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are...
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7388995 |
Quantization matrix adjusting method for avoiding underflow of data
A quantization matrix adjusting method for avoiding underflow of VBV by enlarging the default quantization matrix. The adjusting method comprises the steps of: updating a used bits BB_X and an...
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7388916 |
Water ring scanning apparatus and method, and apparatus and method for encoding/decoding video sequences using the same
A water ring scanning apparatus and method, and an apparatus and method for encoding/decoding video sequences using the same are disclosed. A water ring scanning apparatus includes: a preferential...
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7386049 |
Predictive interpolation of a video signal
A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference...
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7386048 |
Methods and systems for image intra-prediction mode organization
Methods and systems for efficient organization and communication of pixel intra-prediction modes.
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7386047 |
Method for determining the likelihood of a match between source data and reference data
A method, apparatus and an article of manufacture having thereon a computer program, all for reducing data in groups of N values per group. The largest X values of the N values of each group is...
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7386050 |
Fast half-pel searching method on the basis of SAD values according to integer-pel search and random variable corresponding to each macro block
The present invention relates to a half-pel motion estimation method. The calculation object half-pel, which is in the block of the previous or next reference frame, is not estimated additionally...
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7386446 |
Predictive coding scheme with adaptive speed parameters
If an adaptive prediction algorithm controllable by a speed coefficient is started from to operate with a first adaption speed and a first adaption precision and an accompanying first prediction...
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7386070 |
Hardware assisted adjacent channel leakage ratio measurement
A tester module is used to perform an adjacent channel leakage ratio measurement. The tester module includes a translation block, a first filter, a re-sampler, a memory, a router, a second filter...
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RE40372 |
Motion vector prediction method
A motion vector prediction method in an error resilient mode. In the motion vector prediction method capable of decoding backwards, motion vectors of macro blocks are calculated, and motion vectors...
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7386046 |
Bandwidth sensitive data compression and decompression
Data compression and decompression methods for compressing and decompressing data based on an actual or expected throughput (bandwidth) of a system. In one embodiment, a controller tracks and...
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7382294 |
Coding apparatus, decoding apparatus, coding method, decoding method, computer readable medium and computer data signal
A coding apparatus includes a predicting unit, an intermediate-code generating unit, a first coding unit and a second coding unit. The predicting unit generates a piece of prediction data based on...
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7382729 |
Video transmission of layered coded data
A video transmission system, a video transmitting apparatus, a video receiving apparatus, and a video transmission method whereby, when a plurality of terminals whose characteristics differ receive...
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7382924 |
Pixel reordering and selection logic
Presented herein are systems and methods for pixel reordering and selection. A decoded frame is stored in a frame buffer with a particular pixel order and byte order. A pixel feeder fetches...
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7382830 |
Apparatus for generating motion control signal from image signal
In order to easily generate a control signal when a motion in accordance with an image is applied to a chair for an observer, a motion vector is detected from an image signal input to an image...
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7382926 |
Transcoding a JPEG2000 compressed image
A JPEG2000 compressed image is transcoded to a lower bit-rate or lower resolution, or both, without having to decompress the initial JPEG2000 image and then recompress it to a lower bit-rate and/or...
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7382923 |
Method and device for processing and decoding a coded digital signal
The present invention concerns a method of processing a coded digital signal containing on the one hand a set of samples of different types obtained by coding a set of original samples representing...
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