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8401072 |
Information processing apparatus and method, recording medium, and program
An information processing apparatus for decoding compression-coded video data, including: at least one decoder that decodes the compression-coded video data; and a controller than controls...
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RE44091 |
Picture encoding method, picture encoding apparatus and picture recording medium
This invention employs a scheme to allow an input video signal to undergo encoding, e.g., predictive encoding, DCT processing, quantization at fixed quantization step size and variable length...
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8396120 |
Robust single-pass variable bit rate encoding
An encoding manager facilitates robust single-pass variable bit rate video encoding of a video sequence. Before encoding the video sequence, the encoding manager determines the size of a buffer to...
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8391360 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
A multiplexing method for multiplexing a bit stream in a multiplexing apparatus. The method includes encoding, in an encoding unit in the multiplexing apparatus, a chroma component of image data...
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8391359 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
A packetizing method for packetizing a bit stream in a packetizing apparatus. The packetizing method includes encoding, in an encoding unit in the multiplexing apparatus, a chroma component of...
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8369398 |
Apparatus and method thereof for encoding/decoding video
An apparatus and method for encoding/decoding an input video complied with a fixed frame rate standard and adjusting bit-stream of an encoded/decoded video in real-time. The apparatus comprises a...
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8355436 |
Method and apparatus for control of rate-distortion tradeoff by mode selection in video encoders
A Method And Apparatus For Control of Rate-Distortion Tradeoff by Mode Selection in Video Encoders is Disclosed. The system of the present invention first selects a distortion value D near a...
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8351501 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image decoding method is for decoding a bit stream in an image decoding apparatus. The method includes receiving the bit stream and a weight parameter that is added to a luma quantization...
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8340175 |
Dynamic image encoding device, dynamic image decoding device, dynamic image encoding method, dynamic image decoding method, dynamic image encoding program, and dynamic image decoding program
A moving image encoding device measures a band of a target image to be encoded and a band of a reference image by a band analyzer, and generates band-related information representing these bands. A...
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8331436 |
Expert system and method for elastic encoding of video according to regions of interest
An elastic expert system for allocating bits according to application domain requirements and network resources. The elastic expert system observes the network resources and determines a state for...
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8311099 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image encoding method for encoding an image in an image encoding apparatus. The encoding process includes performing, in a quantization unit in the image encoding apparatus, quantization on a...
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8300702 |
Data processing apparatus, data processing method, data processing program, data structure, recording medium, reproducing apparatus, reproducing method, and reproducing program
A data processing apparatus has: a decoding interval detecting unit detecting a second interval according to coding order of frames necessary to decode a first interval which is designated by...
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8300686 |
Scaled signal processing elements for reduced filter tap noise
An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients...
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8300698 |
Signalling of maximum dynamic range of inverse discrete cosine transform
Techniques are described to signal a maximum dynamic range of inverse discrete cosine transform (“IDCT”) output values that may be produced when a set of encoded media data is decoded. In acc...
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8295343 |
Video bit rate control method
This invention is directed to a video bit rate control method for encoding a video sequence based on a decoder buffer condition and a group of picture (GOP) size limitation of the encoded video...
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8279925 |
Video streaming apparatus with quantization and method thereof
A streaming appliance having an internal quantizer is disclosed so that the bit rate of a streamed video can be adjusted based on the current conditions of a link between the streaming appliance...
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RE43686 |
Picture encoding method, picture encoding apparatus and picture recording medium
This invention employs a scheme to allow an input video signal to undergo encoding, e.g., predictive encoding, DCT processing quantization at fixed quantization step size and variable length...
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8270475 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image encoding method for encoding an image in an image encoding apparatus. The encoding method includes: performing, in a quantization unit in the image encoding apparatus, quantization on a...
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8270473 |
Motion based dynamic resolution multiple bit rate video encoding
A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded resolution to vary based, at least in part, on motion complexity. The...
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8265141 |
System and method for open loop spatial prediction in a video encoder
Presented herein are systems, methods, and apparatus for real-time high definition television encoding. In one embodiment, there is a method for encoding video data. The method comprises...
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8265143 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image information decoding method for decoding a bit stream in an image decoding apparatus. The decoding process includes decoding, in a decoding unit in the image decoding apparatus, the bit...
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8259795 |
Quantization control for variable bit depth
The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that...
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8243797 |
Regions of interest for quality adjustments
Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve qua...
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8218626 |
Encoding control apparatus, encoding control method, and storage medium
An encoding control apparatus is disclosed that includes a variance calculation unit configured to calculate a variance of an encoding target macroblock; a sum-of-absolute-difference calculation...
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8218651 |
System and method for splicing
A method for splicing a first data stream that conveys a first single program transport stream (SPTS) and a second data stream that conveys a second SPTS, the method includes: receiving first data...
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8218627 |
Scalable MPEG video/macro block rate control
A scaleable macro block rate control method particularly well-suited for MPEG video. There is provided a method to easily derive a quantization parameter (QP) value using information such as bit...
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8213504 |
Image display apparatus, video signal processor, and video signal processing method
The present invention provides an image display apparatus capable of suppressing deterioration in picture quality resulting from precision of detection of a motion vector at the time of performing...
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8208537 |
Video transcoding with suppression on drift errors
A bit rate transcoding method includes: (a) receiving a motion vector of a current macroblock (MB); (b) retrieving an error count of a referenced previous MB for setting it as the error count of...
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8199821 |
Method for modeling coding information of video signal for compressing/decompressing coding information
A method for context-modeling coding information of a video signal for compressing or decompressing the coding information is provided. An initial value of a function for probability coding of...
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8189856 |
System and apparatus for evaluating the reliability of a watermarking technique for a video sequence
A system and apparatus for evaluating the reliability of a watermarking technique for a video sequence, said system and apparatus comprising: a) a calibrating means adapted to calibrate said system...
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8189499 |
Cross-layer optimization method for controlling bit rate of video codec in transmission of video data in WiBro system
A cross-layer optimization method for controlling a bit rate of a video coder/decoder (codec) in video data transmission for wireless devices such as a wireless broadband (WiBro) system terminal...
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8175149 |
Method and apparatus for controlling bitrate of scalable video stream
Provided is a method and apparatus for controlling a bit-rates in which an amount of generated bits is adjusted according to the complexity of each frame, and a bit-rate within a frame can be...
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8175161 |
System and method for motion estimation
A parallel processor for motion estimation including: a matrix of elementary processors configured in rows and columns, local connections between the elementary processors for transmitting partial...
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8166170 |
Distributed multiplexing
The present invention is directed to a method of delivering a video stream. The method operates by determining a group of video streams to be provided to a particular destination over a particular...
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8160139 |
Adaptive quantizer, adaptive quantization method and adaptive quantization program
Activities of a video signal are obtained for subblocks of each macroblock of each picture. The smallest activity is detected as an input-picture activity per macroblock. Obtained are activities of...
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8150186 |
Amount-of-compressed data control method and image data compressing apparatus
An amount-of-compressed-data control method applicable to image data compression processing for compressing an amount of data is disclosed. The method includes the steps of: performing quantization...
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8144767 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image information decoding method for decoding compressed image information which has been coded via a process including dividing an input image signal into blocks, performing an orthogonal...
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8139636 |
Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information
An image information decoding method for decoding compressed image information in an image decoding apparatus, which has been coded via a process including dividing an input image signal into...
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8135063 |
Rate control method with frame-layer bit allocation and video encoder
A video encoder controlling rate of each frame in a current frame set (Group of Picture, GOP), and method thereof. The video encoder comprises a frame grouping device, a GOP initialization device,...
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8112640 |
Method of controlling voltage of power supplied to 3D graphics data processor and the 3D graphics data processor using the method
Provided is a method and of controlling a voltage of power supplied to a 3-dimensional (3D) graphics data processor and the 3D graphics data processor using the method. The method includes...
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8111753 |
Video encoding method and video encoder for improving performance
Video encoding methods and video encoders that provide improved performance while reducing power consumption. In one aspect, a video encoding method comprises the steps of outputting a parameter...
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8107540 |
Image complexity computation in packet based video broadcast systems
A method to determine real time image complexity in video streaming, IPTV and broadcast applications using a statistical model representing channel bandwidth variation and image complexity that...
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8081679 |
Image processing apparatus
An image processing apparatus includes a quantizing unit configured to quantize an input moving image signal using a set quantization scale; a coding unit configured to perform variable length...
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8077767 |
Scaled signal processing elements for reduced filter tap noise
An adaptive transversal filter having tap weights Wj which are products of corresponding tap coefficients Cj and tap gains Mj is provided. A filter control loop controls all of the tap coefficients...
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8059712 |
Independently adjusting the quality levels for luminance and chrominance channels in a digital image
A system that compresses a digital image. During operation, the system obtains a digital image in which the image components are de-correlated into separate channels containing luminance...
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8050320 |
Statistical adaptive video rate control
A method and apparatus for video rate control for a video encoding system for encoding a video signal includes determining 12 a variance of pixel values over a time t of the video signal and...
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8045615 |
Deblock filtering techniques for video coding according to multiple video standards
This disclosure describes deblock filtering techniques in which an in-loop deblock filter of a first codec is used as a post deblock filter of a second codec. A number of techniques are also...
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8045614 |
Quantization control for variable bit depth
The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that...
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8027384 |
Scalable MPEG video/macro block rate control
A scaleable macro block rate control method particularly well-suited for MPEG video. There is provided a method to easily derive a quantization parameter (QP) value using information such as bit...
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8018995 |
System and method for trick play of highly compressed video data
A system for providing trickplay functionality—such as pause, instant replay, rewind, fast forward, etc—for very highly compressed video/audio data stream. Depending on the trickplay fun...
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