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| Number | Title | Issue Date |
| 8031776 | Method and apparatus for predecoding and decoding bitstream including base layer A method and apparatus for extracting a higher quality video stream for a given bit-rate by replacing a specific frame by a base layer frame at a predecoder are provided. A predecoding method performed by the predecoder includes selecting a mode by determining frame... | 10/04/2011 |
| 7991051 | Interframe wavelet coding apparatus and method capable of adjusting computational complexity Provided is an inter-frame wavelet coding apparatus that can reduce the computation complexity of a decoder by adjusting a decomposition level and a filter length based on the information amount of a frame during wavelet transform and a method therefor. The inter-fr... | 08/02/2011 |
| 7949049 | Memory efficient 3-D wavelet transform for video coding without boundary effects A video coding system and method utilizes a 3-D wavelet transform that is memory efficient and reduces boundary effect across frame boundaries. The transform employs a lifting-based scheme and buffers wavelet coefficients at intermediate lifting steps towards the en... | 05/24/2011 |
| 7936824 | Method for coding and decoding moving picture Provided is a method of coding and decoding a moving image, which can optimize the coding rate and reduce the time required for decoding the first image frame during an operation of displaying the image. The coding method includes receiving an image, determining the... | 05/03/2011 |
| 7894531 | Method of compression for wide angle digital video A system and method for varying the level of detail encoded in a video. In a preferred embodiment, some regions of a wide-angle video scene are encoded in an almost lossless manner, while other regions are encoded with less detail. Regions of interest can be determi... | 02/22/2011 |
| 7876832 | Method for the characterization of a digital image and the applications thereof A method of characterizing a digital image, in which a point of interest (PI) in the detected in the image. For each θ of a plurality I of different prescribed orientations in the digital image a family {fθ(k)(n)}1≦K≦K of K one... | 01/25/2011 |
| 7864863 | Method for encoding and/or decoding groups of images The present invention relates to a method of coding and/or decoding groups of pictures. According to the invention, during the temporal decomposition of a stream of pictures within the framework of 3D wavelet processing, the number of pictures, the choice of the ref... | 01/04/2011 |
| 7848429 | Hierarchical coding and decoding method The method comprising a wavelet-based spatial analysis step comprising filtering operations of the picture at the high resolution format and horizontal and/or vertical decimation operations of the filtered picture to supply subband signals, is wherein a decimation o... | 12/07/2010 |
| 7801220 | In-band wavelet video coding with spatial scalability Exemplary improvements for in-band wavelet video coding with spatial scalability are described. In one implementation an encoder uses leaky prediction to balance a trade-off between reducing drifting errors at lower resolutions while maintaining coding performance a... | 09/21/2010 |
| 7733961 | Remote sensing imagery accuracy analysis method and apparatus A method of enhancing a resolution of an image by fusing images includes applying a principal component analysis to a multispectral image to obtain a plurality of principal components, and replacing a first component in the plurality of principal components by a pan... | 06/08/2010 |
| 7715480 | Video encoding with motion-selective wavelet transform A method encodes a video by applying a dual-tree discrete wavelet transform to the video to generate sequences of wavelet coefficients. The sequences are compressed to produce a compressed bitstream corresponding to the video. The compression iteratively selects the... | 05/11/2010 |
| 7680189 | Video coding system and method using 3-D discrete wavelet transform and entropy coding with motion information A video encoding system and method utilizes a three-dimensional (3-D) wavelet transform and entropy coding that utilize motion information in a way to reduce the sensitivity to motion. In one implementation, the coding process initially estimates motion trajectories... | 03/16/2010 |
| 7680191 | Apparatus and method for compressing video information A method and apparatus is disclosed for efficiently encoding data representing a video image, thereby reducing the amount of data that must be transferred to a decoder. The method includes transforming data sets utilizing a tensor product wavelet transform which is ... | 03/16/2010 |
| 7680190 | Video coding system and method using 3-D discrete wavelet transform and entropy coding with motion information A video encoding system and method utilizes a three-dimensional (3-D) wavelet transform and entropy coding that utilize motion information in a way to reduce the sensitivity to motion. In one implementation, the coding process initially estimates motion trajectories... | 03/16/2010 |
| 7675976 | Video coding using wavelet transform and sub-band transposition A video encoding system and method utilizes a three-dimensional (3-D) wavelet transform and entropy coding that utilize motion information in a way to reduce the sensitivity to motion. In one implementation, the coding process initially estimates motion trajectories... | 03/09/2010 |
| 7653134 | Video coding using wavelet transform of pixel array formed with motion information A video encoding system and method utilizes a three-dimensional (3-D) wavelet transform and entropy coding that utilize motion information in a way to reduce the sensitivity to motion. In one implementation, the coding process initially estimates motion trajectories... | 01/26/2010 |
| 7627037 | Barbell lifting for multi-layer wavelet coding A method for coding video data includes scalably generating layers of wavelet coefficients based on a frame of video data, scalably generating motion vector data associated with the plurality of layers, and combining the motion vector data and the plurality of layer... | 12/01/2009 |
| 7577203 | Minimizing non-deterministic noise by using wavelet transform A wavelet transform noise minimization circuit comprises a differential receiver, a voltage comparator, a wavelet transform circuit, an electrical idle (EI) detector circuit, a phase interpolator, a phase-locked-loop (PLL), and a reference clock buffer. The wavelet ... | 08/18/2009 |
| 7558322 | Method and apparatus for temporal wavelet compression A system is described that comprises a method and apparatus for further compressing an already compressed data stream, using a mathematical exclusive-OR computation. The method comprises: receiving a data stream that has been compressed using a first compression pro... | 07/07/2009 |
| 7421137 | Block entropy coding in embedded block coding with optimized truncation image compression Embedded block entropy coding with optimized truncation is useful for image compression schemes in conjunction, for example, with a Wavelet transform, so as to form a bit-stream which can be stored or transmitted with increased efficiency. In the arithmetic coding p... | 09/02/2008 |
| 7421134 | Image processing apparatus and method for moving object-adaptive compression An image processing apparatus is adapted to a surveillance camera system, and a CPU included in the surveillance camera system divides a plurality of continuous screens of an image signal into a plurality of blocks by each screen, and detects a specific object, whic... | 09/02/2008 |
| 7418144 | Curved wavelet transform for image and video compression A curved wavelet transform and a related image/video compression system are disclosed. The curved wavelet transform (CWT) is carried out by applying one-dimensional (1-D) wavelet filters along curves, rather than along only horizontal and vertical directions. The im... | 08/26/2008 |
| 7412103 | 3D wavelet-based filter and method A 3D wavelet-based filter for visualizing and locating structural features of a user-specified linear size in 2D or 3D image data. The only input parameter is a characteristic linear size of the feature of interest, and the filter output contains only those regions ... | 08/12/2008 |
| 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 transforms to generate multiple coefficients and storing N bitplanes of e... | 07/08/2008 |
| 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 of macro blocks each having one motion vector are predicted while mo... | 06/10/2008 |
| 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 resolution. Instead, arithmetic decoding is performed only to the ne... | 06/03/2008 |
| 7372485 | Digital camera device and methodology for distributed processing and wireless transmission of digital images A digital imaging system is described that provides techniques for reducing the amount of processing power required by a given digital camera device and for reducing the bandwidth required for transmitting image information to a target platform. The system defers an... | 05/13/2008 |
| 7369161 | Digital camera device providing improved methodology for rapidly taking successive pictures An in-camera two-stage compression implementation is described that reduces the latency between snapshots to a fraction of that otherwise required by other systems that either process complete compression following each snapshot or that incorporate heavy, bulky, and... | 05/06/2008 |
| 7369709 | Conditional lapped transform A digital media content (e.g., image, video, audio, etc.) encoder/decoder employs a spatially varying parameter to condition the application of an overlap pre-process and post-process to adjacent transform block edges for the spatial-domain lapped transform. This co... | 05/06/2008 |
| 7366909 | Dynamic wavelet feature-based watermark A dynamic wavelet feature-based watermark for use with digital video. Scene change detection separates digital data into one or more scenes, wherein each of the scenes is comprised of one or more frames. A temporal wavelet transformation decomposes the frames of eac... | 04/29/2008 |
| 7362363 | Sensor device with sensor elements and read-out unit which reads partial measurements In a sensor arrangement, a number of sensor elements make measurements and a read-out unit reads measurements from the sensor elements. Images should be recorded in such a way that easily compressible representation of the image content is obtained back at the recor... | 04/22/2008 |
| 7359563 | Method to stabilize a moving image The invention is a process to compare two digital images (and usually more) and to identify objects in each image. After object identification, object descriptors are formed. The object descriptors of the objects in one frame are compared to those of objects in the ... | 04/15/2008 |
| 7355533 | Method for compression of data A method for compressing data, for example, seismic data, audio data, or video data, comprising the steps of transforming data of a frame into a first sequence of real numbers by using an entropy increasing transform method; quantizing said first sequence of real nu... | 04/08/2008 |
| 7352906 | Continuous transform method for wavelets A method and system for mapping the flow data that will be the subject of wavelet transform equations to a system comprising adders, subtractors, multipliers and/or dividers to perform the mathematical functions set forth in the particular wavelet transform. A shift... | 04/01/2008 |
| 7349579 | Image processing device, image processing method, and image reading method The present invention provides an image processing device, an image processing method, and an image reading method, by which encoded data can be easily generated from sub-sampled image data, without a complicated circuit or an increase in the data amount. A one-dime... | 03/25/2008 |
| 7343025 | Method for embedding and extracting digital watermark on lowest wavelet subband A for embedding a digital watermark on a wavelet lowest subband includes: setting a DC component region of a multi-stage wavelet-transformed original copy image to a watermark embedment region, and high-frequency filtering an original picture LLn of the e... | 03/11/2008 |
| 7336720 | Real-time video coding/decoding A video codec for real-time encoding/decoding of digitized video data with high compression efficiency, comprising a frame encoder receiving input frame pixels; a codec setting unit for setting and storing coding setting parameters; a CPU load controller for control... | 02/26/2008 |
| 7333664 | Image compression method capable of reducing tile boundary distortion An image compressing apparatus divides an image into plural tiles, decomposes each tile into plural sub band by frequency conversion, and conducts bit plane encoding of each sub band for each encoding unit, wherein the image compressing apparatus includes a code dis... | 02/19/2008 |
| 7333543 | Motion vector estimation method and apparatus thereof A method which calculates a motion vector based on a transformed picture obtained by Discrete Coefficient Transform (DCT) or a Wavelet transform, and an apparatus appropriate for the method. The motion vector estimating method in an encoding method for a moving pict... | 02/19/2008 |
| 7330595 | System and method for video data compression A system and method perform video data compression in a manner that limits the need for external memory access. Accordingly, the operational frequency of the local data bus is reduced and power consumption is therefore minimized. In this manner, the present inventio... | 02/12/2008 |
