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Image Analysis > Image Compression Or Coding > Predictive Coding

Predictive Coding

Predictive Coding patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

11/22/07 - 20070269121 - Method and device for condensed image recording and reproduction
A method and device for encoding or decoding data are discussed. According to an embodiment, the present invention provides a method for decoding image data in a digital data stream which has an image having one predetermined storage time interval and sampling rate, comprising: determining if the image data is ...

10/18/07 - 20070242892 - Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program
Variable-length encoder 16 feeds a CBP as an input symbol H1 to variable-length code output part 30. Coded symbol memory 31 supplies CBPs in neighboring blocks as coding map table reference information H2 to coding map table provider 32. Coding map table provider 32 determines a coding map table used ...

10/04/07 - 20070230805 - Coded data recording apparatus, decoding apparatus and program
A coded data recoding apparatus includes a coded data analyzing unit 1 for extracting block data and data showing the image characteristics of the block data from moving image coded data, two or more code tables 4 and 5 in each of which the code amount is optimized for each ...

08/16/07 - 20070189620 - Pixel data compression and decompression method and device thereof
The present invention discloses a method for compressing and decompressing pixel data and the device thereof. The method comprises receiving current pixel data from a preprocessor and comparing the current pixel data with predictor pixel data to obtain a section index from a quantization table. Output the section index to ...

08/09/07 - 20070183674 - Method and apparatus for encoding and decoding key value data of coordinate interpolator
A method and an apparatus for encoding/decoding key value data of a coordinate interpolator used in a three-dimensional graphic animation are provided. The apparatus for encoding key value data of a coordinate interpolator representing the position of each vertex of an object using coordinates of each of the vertices including ...

07/19/07 - 20070165958 - Method for compressing/decompressing video information
The invention relates to a method for compressing video information in a video sequence (It, It+1). According to the invention, this method comprises the steps of: . segmenting a first video frame (Bt) into segments (St,i); . for each segment (S t,i) of the video frame (Bt): —searching, in a ...

06/14/07 - 20070133891 - Method and device for intra prediction coding and decoding of image
A method and a device for intra prediction coding and decoding of an image in which the intra prediction according to a selected intra prediction mode based on a direction of an input image is performed are provided. In the method and the device, an input block is frequency transformed, ...

05/10/07 - 20070104379 - Apparatus and method for image encoding and decoding using prediction
An image encoding and decoding method includes dividing an input image into a plurality of sub-planes by sub-sampling the input image, selecting one of the divided sub-planes and performing interprediction-encoding on the selected sub-plane, and performing interprediction-encoding on the remaining sub-planes based on motion vectors selected in interprediction-encoding of the ...

05/03/07 - 20070098280 - Open system architecture for surveillance systems with efficient bandwidth management
A signal processing method comprises the steps of: receiving an image frame including a plurality of rows of pixel data words, wherein each of the rows includes a start pixel data word and a plurality of successive pixel data words; processing each row by subtracting each successive pixel data word ...

05/03/07 - 20070098279 - Method for determining a displacement vector in an image processing operation
In a method to determine a selection vector that indicates a displacement of an image area from a first position in a first image to a second position in a second image, a set of prediction vectors and a set of test vectors are provided. Using selected test vectors, an ...

04/26/07 - 20070092147 - Multiple-reference motion estimation method and device, coding method and device, computer program products and corresponding storage means
A multiple-reference motion-compensated predictive coding method is provided, which includes a multiple-reference motion estimation step, of the type making it possible to estimate the motion for each current frame included in a video sequence, from at least one initial list of reference frames for said current frame, each initial list ...

04/19/07 - 20070086663 - Video predictive coding apparatus and method
A predictive coding in a video coding system, which can enhance the coding efficiency by predictively coding DC coefficients of a block to be coded using DC gradients of a plurality of previously coded neighboring blocks. The predictive coefficient is selected according to the difference between the quantized DC gradients ...

04/05/07 - 20070076964 - Method of and an apparatus for predicting dc coefficient in transform domain
A method of and apparatus for predicting a direct current (DC) coefficient in a transform domain are provided. The method of predicting a DC coefficient of a transform block in video encoding includes calculating a first representative value of pixel values of pixels in the bottom-most row of a neighboring ...

03/22/07 - 20070065031 - Image processing device, method and recording medium for compressing image data
An image processing device for compressing image data using conversion to spatial frequency components may include a dividing section that divides the image data into a plurality of pixel blocks and computes spatial frequency components of each pixel block; a segmenting section that computes an intensity of predetermined high frequency ...

03/22/07 - 20070065030 - Image predictive coding method
There is disclosed image predictive coding apparatus and method, image predictive decoding apparatus and method, and recording medium which stores therein the image predictive coding method or the image predictive decoding method, of which the transform efficiency is remarkably improved in comparison with the prior art. According to the image ...

03/22/07 - 20070065029 - Image predictive coding method
There is disclosed image predictive coding apparatus and method, image predictive decoding apparatus and method, and recording medium which stores therein the image predictive coding method or the image predictive decoding method, of which the transform efficiency is remarkably improved in comparison with the prior art. According to the image ...

03/22/07 - 20070065028 - Image predictive coding method
There is disclosed image predictive coding apparatus and method, image predictive decoding apparatus and method, and recording medium which stores therein the image predictive coding method or the image predictive decoding method, of which the transform efficiency is remarkably improved in comparison with the prior art. According to the image ...

03/22/07 - 20070065027 - Image predictive coding method
There is disclosed image predictive coding apparatus and method, image predictive decoding apparatus and method, and recording medium which stores therein the image predictive coding method or the image predictive decoding method, of which the transform efficiency is remarkably improved in comparison with the prior art. According to the image ...

02/15/07 - 20070036445 - Method and apparatus of efficient lossless data stream coding
The present invention provides method of lossless data stream coding with high coding efficiency. The differential value of adjacent samples are calculated firstly and is coded by a VLC coding, the variable length coding. The VLC coding includes codes representing the quotient and remainder with a marker bit inserted in ...

02/01/07 - 20070025626 - Method, medium, and system encoding/decoding image data
A method, medium, and system encoding and/or decoding image data by dividing image data into block units, and generating a bitstream by entropy encoding the image data in order of the divided blocks. The decoding method may include receiving an input of a bitstream, and restoring image data by entropy ...

01/18/07 - 20070014479 - Method and apparatus of color system adaptive intensity compensation and video encoding/decoding method and apparatus thereof
A method and apparatus for encoding and/or decoding image data. The encoding method includes: if the color space of an image is a single color space, correcting pixel values by applying identical correction pixel values to all color components of a previous image, and if the color space of the ...

01/11/07 - 20070009163 - Image transmitting apparatus and image receiving apparatus
An image transmission apparatus has a difference calculator configured to calculate a difference between actual image data and current predicted data based on previous data, a quantizer configured to generate quantized difference data obtained by quantizing the difference, a quantization characteristic determinator configured to determine a quantization characteristic corresponding to ...

12/28/06 - 20060291731 - System, method and computer instructions for compression of four dimensional data
Certain embodiments of the present invention provide a system, method and computer instructions for compression of four dimensional data. In an embodiment, a system for compression of four dimensional data includes: a compression module configured to compress four dimensional data, wherein the data includes a first three dimensional volume and ...

12/07/06 - 20060274956 - Intraprediction method and apparatus using video symmetry and video encoding and decoding method and apparatus
An intraprediction method which improves compression efficiency using the symmetry of a video in the intraprediction of the video and a video encoding and decoding method and apparatus using the intraprediction method. The intraprediction method includes performing intraprediction by predicting a first region to be encoded in a video based ...

11/23/06 - 20060262983 - Method and apparatus for selecting intra prediction mode
A method for selecting intra prediction mode includes: calculating an error value for each of the prediction modes in a first group, wherein the first group includes two prediction modes where an included angle between their prediction directions is the largest; calculating an error value for each of the prediction ...

11/23/06 - 20060262982 - Image encoding apparatus and method, computer program, and computer-readable storage medium
Image data is efficiently encoded using a predict coding unit and a run-length coding unit. The predict coding unit encodes a target pixel X on the basis of difference between the value of the target pixel and a predict value calculated from pixels neighboring the target pixel. The run-length coding ...

10/19/06 - 20060233451 - 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 generated coefficient, a coefficient number storing unit (110) for storing the number of coefficients detected, a coefficient number coding ...

10/19/06 - 20060233450 - 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 generated coefficient, a coefficient number storing unit (110) for storing the number of coefficients detected, a coefficient number coding ...

10/19/06 - 20060233449 - 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 generated coefficient, a coefficient number storing unit (110) for storing the number of coefficients detected, a coefficient number coding ...

09/28/06 - 20060215921 - Coding apparatus and method and storage medium storing program
A coding apparatus includes a color space conversion unit that converts input image data into image data which is represented in another color space, a gradation changing unit that changes gradation of the input image data, based on the converted image data, and a predictive coding unit that performs predictive ...

09/28/06 - 20060215920 - Image processing apparatus, image processing method, and storage medium storing programs therefor
An image processing apparatus disclosed herein includes an extracting unit that extracts a pixel cluster of a predetermined size from input image data, and a coding unit that codes the input image data, based on correlation between pixel clusters extracted by the extracting unit. ...

08/24/06 - 20060188165 - Spatial prediction based intra-coding
A method and device for coding a digital image using intra-mode block prediction, wherein the prediction mode of a current block is obtained from the prediction mode of the neighboring blocks. Using the property that it is possible to obtain an ordered list of prediction modes for one combination of ...

08/24/06 - 20060188164 - Apparatus and method for predicting coefficients of video block
An apparatus and method are provided for predicting coefficients of a video block. The method, includes determining a predicted value of a DC coefficient of a current block using DC coefficients of a plurality of previous blocks that are adjacent to the current block and determining predicted values of a ...

07/20/06 - 20060159354 - Method and apparatus for predicting frequency transform coefficients in video codec, video encoder and decoder having the apparatus, and encoding and decoding method using the method
Provided are a method and apparatus for predicting frequency transform coefficients in a video codec, a video encoder and decoder having the apparatus, and an encoding and decoding method using the method. The method of predicting the frequency transform coefficients in a frequency transform domain includes: calculating a cost between ...

05/11/06 - 20060098881 - Method and apparatus for encoding and decoding image data
A method of encoding and decoding image data, and an apparatus to perform the method, are provided. The image data encoding method includes: converting and quantizing pixel values of a block of image data to form a conversion block of image data; determining a classification mode used to classify the ...

05/04/06 - 20060093229 - Picture-data compression system
A picture-data compression system for compressing inputted multiple picture data includes a storage device that stores the multiple picture data; a selection controller that writes the multiple picture data into the storage device and reads the multiple picture data from the storage device; a pixel-number converter that converts the number ...

04/20/06 - 20060083436 - Adaptive encoding and decoding of bi-level images
A system and process for encoding and later decoding of bi-level images that does not use arithmetic coding, but whose performance is close to that of state-of-the-art coders such as JBIG, JBIG-2, and JB2. In general, the present bi-level coder (BLC) uses two context-based adaptive modules: 1) an adaptive predictor ...

04/20/06 - 20060083435 - Apparatus and method for calculating the prediction value of the high frequency and low frequency components of an image
An apparatus and method is provided for calculating the prediction value of the high frequency and low frequency components of a MPEG4 or DivX image format. The apparatus comprises a prediction parameter table, a look-up table parameter calculation circuit, a multiplier, a control circuit, and an adder. The present apparatus ...

04/13/06 - 20060078210 - Tarp filter
Systems and methods for performing adaptive filtering are disclosed. The present invention generates probabilities that can be used in an encoder, such as an arithmetic encoder and generates those probabilities in a computationally efficient manner. Probabilities of previously encoded coefficients are employed, effectively, in generating probabilities of the coefficients without ...

02/02/06 - 20060023959 - Circuit for computing sums of absolute difference
A circuit for computing sums of absolute difference (SAD) is provided. The circuit has an absolute difference circuit, a first adder, a first register and a first selective circuit. The absolute difference circuit receives a first data PMi,j and a second data PSi,j and output a absolute difference data ADi,j, ...

11/17/05 - 20050254717 - Method for encoding images, and an image coder
The invention relates to a method for encoding a digital image, in which method the digital image is divided into blocks (C, L, U, UL, UR). In the method a spatial prediction for a block (C) is performed to reduce the amount of information to be transmitted, wherein at least ...

10/06/05 - 20050220353 - 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 residing at unit horizontal locations and the pixels in the columns residing at unit vertical locations, is interpolated ...

09/08/05 - 20050196056 - Image coding and decoding method
There is provided an image coding an decoding method capable of providing a high compression rate and a high-speed coding. The image coding method includes the steps of: dividing an input image into a plurality of images through a sub-sampling; calculating a difference value between a previous pixel and a ...

08/04/05 - 20050169545 - System and method for the dynamic resolution change for video encoding
The present invention relates to a method, system and computer program product for the predictive encoding of digital video sequences. The objectives of the invention are accomplished by dynamically determining the resolution of a current frame being encoded and outputting the determination. The determination process is based on statistical and ...

07/07/05 - 20050147307 - Image encoding apparatus and image encoding method
In the image encoding apparatus, the bus traffic monitoring unit monitors the traffic of the memory bus and when the memory bus is congested, the prediction selector is instructed to select the output from the DC prediction unit. Conversely, when the memory bus is not congested, the prediction selector is ...

06/30/05 - 20050141772 - Image compressor for generating predicted difference code having fixed bit length and program thereof, image decompressor for decoding the code and program thereof, and electronic camera
An image compressor of the present invention includes a difference calculating unit and a difference requantizing unit. The difference calculating unit calculates a predicted difference between a pixel value of image data and a predicted value (a calculated value of the pixel value predicted from known data). When a magnitude ...

06/09/05 - 20050123206 - 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 direction so as to select them in order as a processing block, and selects as a reference block ...



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