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8699564 Robust mode staggercasting with adjustable delay offset  
A method and apparatus for staggercasting includes encoding a first signal representing content having a time duration and a second signal also representing that content. A time delay period is...
8699522 System and method for low delay, interactive communication using multiple TCP connections and scalable coding  
Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual...
8700794 Channel adaptive video transmission method, apparatus using the same, and system providing the same  
A video transmission method is provided, which includes receiving state information from at least one mobile terminal that intends to perform a video stream service through a wireless network,...
8681858 Rate control for two-pass encoder  
Rate control is provided in a two-pass encoder. A first encoding pass is performed to encode an input video sequence. Coding statistics for the first encoding pass are collected. Target coding...
8665965 System, method and computer-readable medium for encoding a signal into macroblocks  
A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization...
8660178 Method and system for multi-layer rate control for a multi-codec system  
A video transmitter comprising a plurality of encoders may be operable to determine, for a transport stream, a constant overall number of bits per time interval corresponding to a frame in the...
8659679 Hardware-constrained transforms for video stabilization processes  
The video stabilization method can generate output data for an output frame from input data of an input frame according to a perspective transform of a transform matrix. The input data used for the...
8654841 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 apparatus for decoding a bit stream includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. In addition, the image...
8654853 Method and apparatus for MPEG-2 to VC-1 video transcoding  
A method for transcoding from an MPEG-2 format to a VC-1 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a...
8649432 Process for controlling the HSDPA downlink data rate received by a user equipment  
A process for allowing a User Equipment (UE) in a wireless communication network to control the HSDPA downlink data rate received from a NodeB, said UE successively receiving blocks of data having...
8634459 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 decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a weight parameter that is added to a luma quantization parameter as the bit stream. The method...
8634460 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 decoding method decodes a bit stream in an image decoding apparatus. The method includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma...
8634461 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 apparatus for decoding a bit stream includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. The image decoding apparatus...
8634458 Image processing apparatus  
This invention provides an apparatus capable of optimal code amount control corresponding to an input source. The apparatus includes a first input unit which inputs the first moving image data, a...
8630355 Multimedia data reorganization between base layer and enhancement layer  
This disclosure describes techniques for allocating and reallocating multimedia data between a base layer and an enhancement layer defined in a wireless modulation scheme. The reallocation...
8615041 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...
8594187 Efficient video block mode changes in second pass video coding  
This disclosure describes techniques for second pass video coding in a multi-pass video coding scenario. The coding modes for some video blocks encoded during a second pass may be changed relative...
8582647 Methods and systems for quality controlled encoding  
This disclosure describes techniques for controlling a perceived quality of multimedia sequences to try to achieve a desired constant perceptual quality regardless of the content of the sequences....
8581981 Optical imaging system for unmanned aerial vehicle  
An optical imaging system and associated methods for capturing images from an aircraft, such as a UAV. A camera unit on-board the aircraft is remotely controlled from an image control station. The...
8576908 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...
8565302 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...
8565301 Quasi-constant-quality rate control with look-ahead  
Methods and apparatus efficiently encode multimedia data, such as live video streams. An encoding complexity of a predetermined time interval, such as 1 second, is estimated before the actual...
8559500 Low-complexity inverse transform and sub-sampling  
Disclosed is a method of inverse transform and sub-sampling having low computational complexity, wherein, a complicated inverse transform process is simplified, meanwhile, a sub-sampling is...
8559504 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 apparatus for decoding a bit stream includes a receiving unit that receives the bit stream and a weight parameter that is added to a luma quantization parameter. The image...
8553765 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 decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a luma quantization parameter and a weight parameter that is added to the luma quantization...
8553766 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 apparatus for decoding a bit stream includes a receiving unit that receives the bit stream and a weight parameter that is added to a luma quantization parameter. Further, the...
8548046 Transcoder  
A category setting part sets a type of a decoded image based on characteristics of the decoded image which are fineness of the decoded image and an intensity of movement of the decoded image. A...
8548048 Video source rate control for video telephony  
The disclosure relates to techniques for video source rate control for video telephony (VT) applications. The source video encoding rate may controlled using a dual-buffer based estimation of a...
8483283 Real-time face detection  
An apparatus, a method, and a computer-readable medium having instructions encoded thereon that when executed cause a method to be carried out. The method includes dividing at least a portion of a...
8467447 Method and apparatus to determine prediction modes to achieve fast video encoding  
An improvement to a predictive video encoding method or apparatus that includes selecting a mode class within which to choose an encoding algorithm to encode individual blocks of video information....
8462850 Motion estimation in video compression systems  
Motion estimation in video compressions systems. A programmable motion estimator may be used to estimate a motion vector for a macroblock in a current frame by searching for a matching macroblock...
8457438 Filtering method for removing block artifacts and/or ringing noise and apparatus therefor  
Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the...
8451892 Method and system for linear quantization and dequantization  
A method including receiving a set of input data in a first matrix format. The method further includes compressing the set of input data to obtain a first set of compressed data in a second matrix...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Matches 1 - 50 out of 290 1 2 3 4 5 6 >