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RE39984 |
Image encoding based on judgement on prediction error
There is provided an image encode encoding apparatus which comprises a generation means for generating a prediction error from an encode encoding target pixel value and a prediction value...
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7315654 |
Image processing apparatus
A foreground extracting section extracts the foreground of each of the first to the N-th frames, and a foreground-accumulated-image configuration section configures a front accumulated image...
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7313285 |
Method and apparatus for compressing and decompressing images captured from viewpoints throughout N-dimensional space
Techniques for compressing and decompressing images captured from viewpoints throughout an n-dimensional space. As opposed to conventional approaches, these techniques exploit image coherence over...
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7308150 |
Image processing apparatus
To provide an image coding apparatus that can generate a code that can be decoded by a general decoding apparatus while attaining a high coding speed. As a result of processing in a plurality of...
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7308147 |
Image processing apparatus, image recording apparatus, image reproducing apparatus, camera system, computer program, and storage medium
An image processing apparatus includes an image compression device which performs a discrete wavelet transform of pixel values for each rectangular portion to produce wavelet coefficients, and...
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7308148 |
Method of compressing digital ink
A method of compressing a digital ink input is disclosed. The digital ink includes a sequence of strokes, each stroke being represented as a series of digital words representing x and y...
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7308149 |
Picture coding method and picture decoding method
The method includes the following units: a coefficient number detecting unit ( 109 ) for detecting the number of coefficients which has a value other than 0 for each block according to the...
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7298913 |
Video encoding method and apparatus employing motion compensated prediction interframe encoding, and corresponding video decoding method and apparatus
A method for encoding a video block using reference blocks comprises assigning the video block to one of first and second prediction groups, and encoding the video block according to a motion...
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7292731 |
Image encoder, image decoder, image encoding method, and image decoding method
The image coding apparatus is constituted comprising an atom extraction section 109 for acquiring position data indicating the positions of atoms of prediction residual data in macroblocks, for...
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7292636 |
Using order value for processing a video picture
A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the...
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7292635 |
Interframe wavelet video coding method
An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the...
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7289674 |
Spatial prediction based intra coding
A method and device for coding a digital image using intra-mode block prediction, wherein a list of prediction modes for each combination of prediction modes of the neighboring blocks is obtained....
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7289675 |
Scalable predictive coding method and apparatus
A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower...
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7289562 |
Adaptive filter to improve H-264 video quality
A method for reducing or eliminating coding artifacts in video pictures processed using intra block prediction methods, for example, according to the H.264 standard. The causes of the coding...
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7286689 |
Motion estimation for compression of calibrated multi-view image sequences
A method for estimating motion of each of a plurality of tessels in an intermediate image relative to a reference image, which includes searching the reference image to find points that lie along...
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7280698 |
Method and apparatus for displaying noticeable image and system for remotely monitoring image
Coded, or compressed data of moving pictures is received through a transmission path. The picture type of the compressed data is detected from the received compressed data of moving pictures. If...
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7280699 |
Compressing and restoring method of image data based on dot areas and positions
A method for compressing/restoring image data free from degradation of image quality caused by compression/decompression, a method for compressing image data at high compression ratio, and its...
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7280700 |
Optimization techniques for data compression
Methods and apparatuses are provided relating to the encoding of data, such as, e.g., images, video, etc. For example, certain methods include processing at least a portion of data using a...
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7280599 |
Method for sub-pixel value interpolation
A method of interpolation in video coding in which an image comprising pixels arranged in rows and columns and represented by values having a specified dynamic range, the pixels in the rows...
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7277587 |
System and method for lossless video coding
A lossless video coding method is provided. The method comprises: accepting a current input macroblock (MB) of pixel information; subtracting a current prediction MB from the current input MB,...
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7274824 |
Method and apparatus to reduce the system load of motion estimation for DSP
A method and apparatus to reduce the system load of motion estimation for DSP discloses circular buffers, a plurality of absolute difference calculation circuits, a multiple input adder, a full...
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7272185 |
Moving picture encoding apparatus
Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through...
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7269289 |
System and method for robust video coding using progressive fine-granularity scalable (PFGS) coding
A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into multiple layers, including a base layer of comparatively low quality video and multiple...
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7269288 |
Apparatus for parallel calculation of prediction bits in a spatially predicted coded block pattern and method thereof
A storage device stores rows of bits including a D 0 bit, an X 0 bit, an X 1 bit, a Y 0 bit, a Y 1 bit and a spatially predicted coded block pattern having an A 0 bit, an A 1 bit, an A 2 ...
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7266247 |
Image coding method and apparatus using spatial predictive coding of chrominance and image decoding method and apparatus
A method and apparatus for coding a chrominance component of an intra-image using spatial predictive coding and a method and apparatus for decoding the coded chrominance component are provided. The...
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7266245 |
Image signal compression method and system
An image signal compression method and system. Without involving the current processing pixel, an encryption key and a decryption key are respectively and separately generated by a compression...
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7263232 |
Spatial extrapolation of pixel values in intraframe video coding and decoding
Techniques and tools for spatial extrapolation of pixel values in intraframe video encoding and/or decoding are described. For example, to predict the pixel values for a block of pixels, a video...
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7263128 |
Triple-buffering method for overlapped motion compensation in a video decoder
A method of improving performance within video decoders subject to the execution of overlapped motion compensation. The method utilizes a triple-buffering approach to achieve rapid data transfers...
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7254273 |
Data coding method and device, and data coding program
A data compression method uses a template. In the template, the template optimizing is performed by an artificial intelligent technique (such as a genetic algorithm). The artificial intelligent...
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7254175 |
Frame-accurate seamless splicing of information streams
A method and apparatus for generating universal splice point adapters, where during a splicing operation an “out-point splicing adapter” is used to transition from an exit stream, while an...
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7251368 |
Pixel-based data modifying method and device
The invention relates to a method of modifying data in an encoded data signal 125 corresponding to successive pictures divided into sub-pictures, for providing an output modified data signal 126...
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7251278 |
Procedure and system for performing motion estimation
A method and system for performing motion estimation in video image compression is provided. In the method and system, an associative memory device is used in motion estimation, and the group of...
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7251279 |
Apparatus of motion estimation and mode decision and method thereof
An apparatus and method of motion estimation and mode decision includes a candidate vector group generation unit generating a candidate vector group including a motion vector of an adjacent image...
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7251372 |
Method and system for compressing digitized fingerprint images by a uniform degree of compression
A method and a system are described for achieving a desired value for the magnitude of compression when compressing the information contained in a digitized fingerprint images. A lossy compression...
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7248631 |
Method for reducing processing power requirements of a video decoder
A system and method dynamically process video data received by a video decoder by determining a throttling amount, at a decoder throttling device, based on a measure of computational processing...
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7248742 |
Encoding and decoding method and apparatus using plus and/or minus rounding of images
An image decoding method is utilized to obtain high quality images without error accumulation. Such an image decoding method comprises receiving an encoded bitstream including information of P and...
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7248741 |
Video sequences correlation and static analysis and scene changing forecasting in motion estimation
The invention teaches correlation analysis of the stochastic relationship between video images for use in motion estimation. On the basis of the method of analysis of correlation values as temporal...
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7242811 |
Method and apparatus for compressing data and decompressing compressed data
A method and apparatus are provided for compressing data representing a plurality of elements of an array. This data is compressed by generating at least two sets of reduced size data from a...
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7242715 |
Systems and methods for encoding redundant motion vectors in compressed video bitstreams
The invention is related to methods and apparatus that encode redundant motion vectors for predictive-coded visual object planes (P-VOPs) to increase the robustness of transmitted video signals....
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7239743 |
Methods and apparatus for texture compression and computer program product therefor
A method for texture compressing images having a plurality of color components (R, G, B), includes decomposing the images in sub-blocks each including only one color component. At least one first...
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7236634 |
Image encoding of moving pictures
In an encoding method of moving pictures which generates a predictive picture for a current picture based on a reference picture and a motion vector, a macroblock is divided into subblocks. In each...
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7236636 |
Image compression method, image restoration method, program and apparatus
An image compression divides an input image into blocks having the predetermined number of horizontal and longitudinal pixels, and scans the divided blocks in a main scan direction and a sub scan...
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7231090 |
Method for performing motion estimation with Walsh-Hadamard transform (WHT)
A method for performing a motion estimation combined with a Walsh-Hadamard transform algorithm. In image frame, which includes a pixel array to display an image object, the method includes fetching...
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7231091 |
Simplified predictive video encoder
In a video coding method, it is determined to code input video data according a technique selected from the group of: (a) intra-coding, (b) inter-coding without a residual and (c) inter-coding with...
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7224730 |
Systems and methods for decoding redundant motion vectors in compressed video bitstreams
The invention is related to methods and apparatus that decode robustly encoded video bitstreams. One embodiment of a decoder can advantageously reconstruct a predictive-coded video object plane...
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7224733 |
Interpolation filtering method for accurate sub-pixel motion assessment
To generate an improved image signal when estimating motion, a motion vector is first determined with pel accuracy, and a two-step interpolation filtering is subsequently carried out with sub-pel...
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7221706 |
Systems and methods for performing bit rate allocation for a video data stream
The present invention is related to video encoding. In an embodiment, a bit budget is calculated for a first scene. In addition, bit budgets for corresponding frames, including at least a first...
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7212573 |
Method and/or apparatus for determining minimum positive reference indices for a direct prediction mode
An apparatus comprising a first processing circuit and a second processing circuit. The first processing circuit may be configured to generate (i) one or more prediction samples and (ii) a...
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7212570 |
Video converter and computer program for executing said video converter
A video converter for converting a coding format of a great deal of video contents has three kinds of conversion modes including a conversion mode for performing conversion in two steps in...
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7209591 |
Motion compensation method for video sequence encoding in low bit rate systems
A method for motion accounting and compensation while encoding allows improvement of the restored image quality. Image is a predicted frame in video sequence. Motion compensation is understood as...
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