|
Match
|
Document |
Document Title |
|
|
6351492 |
Method and apparatus for encoding a video signal
The encoding type of a target macroblock is determined based on the texture information thereof, and the shape information and the texture information on the target macroblock are re-formed in...
|
|
|
6337882 |
Method and apparatus for generating unlimited selected image views from a larger image
A selected image view generator is disclosed for generating a selected portion of a larger compressed image. A selected image view from an overall image is generated with significantly reduced...
|
|
|
6333949 |
Video coding apparatus and decoding apparatus
Video coding apparatus and decoding apparatus capable of reproducing decoded pictures without introducing unwanted noises, even if any considerable difference in pixel values or discontinuity...
|
|
|
6333948 |
Video coding apparatus, video coding method and storage medium containing video coding program
In a video coding apparatus coding a motion picture while switching a coding mode between an INTER coding mode and an INTRA coding mode, a motion information management part determines whether or...
|
|
|
6307885 |
Device for and method of coding/decoding image information
A device for coding image information, which is a shape encoder for splitting an image transferred from an image input into an object image and a background image that have predetermined shape...
|
|
|
6304606 |
Image data coding and restoring method and apparatus for coding and restoring the same
When encoding the continuous image by dividing the respective frames into a plurality of blocks, the image in the block in the present frame is compared with a corresponding image in the block in...
|
|
|
6304295 |
Region-based refresh strategy for video compression
Frames in a video sequence are divided into two or more regions and a specified number of macroblocks are selected in each region for intra-coding. Depending on the particular implementation, for...
|
|
|
6304605 |
Video compressing method wherein the direction and location of contours within image blocks are defined using a binary picture of the block
A video compression method, which can be applied especially in the transfer of a video signal at low transfer rates. In the method, the video picture is divided into blocks, and in order to code...
|
|
|
6301302 |
Moving picture search system cross reference to related application
Every frame represented by a moving picture signal is divided into blocks. Calculation is made as to a number of pixels forming portions of a caption in each of the blocks. The calculated number of...
|
|
|
6298168 |
Image coding apparatus
In an image coding apparatus for encoding and decoding multi-level image data with block truncation coding, multi-level image data is divided into second blocks (e.g., 6*6 pixels) which is larger...
|
|
|
6289049 |
Method for coding motion vector in moving picture
A method for coding a motion vector in a moving picture reduces overall bit rates in a process of moving picture coding includes searching a motion vector prediction candidate for a first block...
|
|
|
6285791 |
Transmission method for video or moving pictures by compressing block differences
A method is disclosed for transmitting video images over a data communication network, in which method the video image is encoded at the sending end, transmitted, and decoded at the receiving end....
|
|
|
6282322 |
System and method for compressing and decompressing images
This invention relates to systems and methods for increasing image compression. The systems and methods are improvements applicable to encoder/decoders which compress images by, inter alia,...
|
|
|
6271885 |
Apparatus and method of motion-compensated predictive coding
A moving picture signal is encoded by motion-compensated prediction using motion vectors for each motion-compensated block of the moving picture signal. The motion vectors are arranged into motion...
|
|
|
6266371 |
Motion vector detecting apparatus and method
A motion vector is detected between a base block of a present frame and an inspection block of a reference frame, which is moved in a predetermined search range of the reference frame, on the basis...
|
|
|
6259732 |
Method and apparatus for encoding interlaced macroblock texture information
A method for padding interlaced texture information on a reference VOP to perform a motion estimation detects whether said each texture macroblock of the reference VOP is a boundary block or not....
|
|
|
6236683 |
Image predictor
A predictor provides as a pixel block of a current image a set of p target pixels of the preceding image so that each target pixel corresponds in the image to the adjacent pixels of the current...
|
|
|
6233281 |
Video signal processing apparatus, and video signal processing method
A video signal processing apparatus which receives a digital video signal having arrangement of pixels frame by frame as an input, performs compressively coding to the digital video signal, and...
|
|
|
6229852 |
Reduced-memory video decoder for compressed high-definition video data
A video decoder for decoding compressed high-definition video data. The video decoder includes compress and decompress circuits placed in the decoder's datapath to reduce the amount of video data...
|
|
|
6229929 |
Border filtering of video signal blocks
A technique for compressing video images uses temporary compression of blocks during compression, integrated color rotation of compressed images, direct compression of a composite video signal, and...
|
|
|
6225923 |
Encoder arrangement and bit-exact IDCT protocol
The encoder arrangement and bit-exact IDCT protocol provides methods and arrangements that prevent an accumulation of errors between a transmitting codec and a receiving codec. One example...
|
|
|
6219157 |
Image coding apparatus
An image coding apparatus comprises a divider for dividing an image into a plurality of coding blocks overlapped to each other, and a coder for coding them for each of the coding blocks divided by...
|
|
|
6212231 |
Assign of pels of a macroblock for compression encoding to a memory sequence in one of banks of DRAM
In a video processor for compression encoding a series of picture elements of video data (frames or fields) based on macroblocks in some of the video data, each macroblock consisting of up to a...
|
|
|
6205179 |
Picture reproducing apparatus and picture reproducing method
A picture reproducing device in which a still picture can be recorded/reproduced to high picture quality without requiring a dedicated still picture processor or a RAM configured for storing...
|
|
|
6205181 |
Interleaved strip data storage system for video processing
A method and apparatus for storing a macroblock from a video data stream is disclosed. A macroblock is received, the macroblock having a plurality of blocks corresponding to a plurality of color...
|
|
|
6195128 |
Video processing for storage or transmission
A method of processing digital video information in real time involves reading-in digital data representing pixels of successive video frames, e.g., from a digitizer. The pixel frame data is...
|
|
|
6195391 |
Hybrid video compression/decompression system
A digitized image compression system employs several different compression techniques to compress the luminance and chrominance information and encodes the selected technique "on the fly" by...
|
|
|
6192078 |
Motion picture converting apparatus
To perform a motion picture format conversion at high speed in a motion picture converting apparatus, the apparatus comprises: input device 101 for inputting a digital image signal constituted of...
|
|
|
6184900 |
Memory management techniques for large sprite objects
A system and method for reducing the amount of decoder memory and the number of transformation calculations used in generating a plurality of frames of a video sequence includes separating the...
|
|
|
6178203 |
Method and apparatus for two-row decoding of MPEG video
A method and system for decoding compressed MPEG2 bitstream video data utilizing a two row macroblock cache memory and algorithm for determining data overlap between a stored reference macroblock...
|
|
|
6163576 |
Video encoder having reduced memory bandwidth requirements
A video encoder typically includes a preprocessor, a frame store, a motion compensator, and a compression module. The preprocessor converts an incoming digital video signal to image macroblocks....
|
|
|
6154492 |
Motion vector detection apparatus
In a motion vector detection apparatus, cascade-connected processor elements each calculates the absolute value of the difference between each of a plurality of pixels which compose a picture and a...
|
|
|
6144700 |
Method and apparatuses for removing blocking effect in a motion picture decoder
Methods and apparatus for removing blocking effect in a motion picture decoder are provided. Boundary pixel values of a current block and corresponding adjacent blocks are extracted boundary. A...
|
|
|
6130912 |
Hierarchical motion estimation process and system using block-matching and integral projection
Methods and systems of the present invention obtain a motion vector between two frames of video image data. Specifically, methods and systems of the present invention may be used to estimate a...
|
|
|
6128339 |
Apparatus and method for masking video data errors
An apparatus and method for masking video data errors by detecting direct current errors of a block unit during the decoding of video data. A video frame is composed of a plurality of macro blocks...
|
|
|
6125143 |
Picture encoding device and method thereof, picture decoding device and method thereof, and recording medium
A picture is divided into either one of three types of macroblocks and then encoded in such a manner that block distortion, mosquito noise and ringing are reduced while picture coding efficiency is...
|
|
|
6125146 |
Method and device for decoding coded digital video signals
The invention relates to a video coding method and system including a quantization and coding sub-assembly (38) in which a quantization parameter is controlled by another parameter defined as being...
|
|
|
6118901 |
Array architecture with data-rings for 3-step hierarchical search block matching algorithm
The invention discloses a 9-cell array architecture with data-rings for 3-step hierarchical search (3SHS) block-matching algorithm. With the efficient data-rings and memory organization, the...
|
|
|
6111989 |
1/4 size real time decoding of digital video
A system and method to decode encoded video images in such a manner as to maintain high quality images while reducing the computation time needed to decode the images. The system takes into account...
|
|
|
6108381 |
Tree search vector quantization for compressing digital video data to be stored in buffers and MPEG decoder and SQTV processor with reduced memory requisites
A method for reducing the RAM requirement for temporarily storing a stream of data blocks in a coding/decoding system of information transferable by blocks, includes the steps of: compressing and...
|
|
|
6108378 |
Video encoder and decoder image motion estimation system with reduced computation
The computation-intensive task of motion estimation for video signals is performed by block search methods using apparatus of reduced complexity. Motion estimation is performed by analyzing only...
|
|
|
6108383 |
Method and apparatus for compression and decompression of video images
This invention uses a novel synthesis of several different compression methods, some original and some known in the art, to achieve compression of digitized video image sequences. Images are...
|
|
|
6108380 |
Method and apparatus for deciding optimum orthogonal transform mode
When a selective decision of the field mode/frame mode for orthogonal transform is made for each macroblock composed of a plurality of blocks in a motion picture coding system wherein coding of an...
|
|
|
6100933 |
Process and apparatus for compressing and decompressing digital video signals using horizontally-based vector quantization
A method, apparatus, computer system, and computer-readable medium for compressing a two-dimensional array of pixels. A plurality of first column pixel differences is generated by differencing...
|
|
|
6094453 |
Digital data compression with quad-tree coding of header file
A system and method for digital live video transmission is disclosed. According to the system, live or full-motion video is transmitted over plain old telephone system ("POTS") wiring. Successive...
|
|
|
6088039 |
Compression of grey scale images of text
An image stored in a memory of a computer as pixels, each pixel including a bit pattern to indicate a grey-scale level. The image is compressed by grouping the pixels of the image into a plurality...
|
|
|
6084913 |
Method for compressing dynamic image information and system and device therefor
A method and system for compressing dynamic image information includes a divider which divides each frame of dynamic image data of 16 frames into 4×4 pixel blocks that are non-overlapping. A first...
|
|
|
6081554 |
Method to control the generated bit rate in MPEG-4 shape coding
In a digital video compression system that includes both a real buffer of size B max , and a smaller virtual buffer of size B virtual , a method for controlling the generated bit rate of compressed...
|
|
|
6078619 |
Object-oriented video system
An object-oriented video system is implemented as a two layer object model in a software-only video compressor. Quadtree decomposition on an error metric between the input and transmitted images...
|
|
|
6078617 |
Apparatus and method for coding and decoding video images
An apparatus and method for coding and decoding digital video images, capable of maintaining the quality of static regions, such as background images, in decoded pictures even when the resolution...
|