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8897585 Prediction of pixels in image coding  
A method and arrangement for prediction of pixel values in an image decoder. In an image decoder, a reference vector which is provided by an image encoder is provided 500. An initiation region of...
8879622 Interactive system and method for transmitting key images selected from a video stream over a low bandwidth network  
A method and interactive system for the on-line transmission of a high-resolution video sequence composed of a succession of T images includes a step of selecting relevant images comprising at...
8879638 Image coding apparatus and image conversion apparatus  
A statistical value calculation part specifies macroblocks positioned around an object macroblock and calculates a minimum average value of activities of the macroblocks. When images of the...
8879624 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...
8848785 Compact cumulative bit curves  
Embodiments of the present invention provide a compact representation of a cumulative bit curve formed from piece-wise straight line approximations between upper and lower bounds about an actual...
8848790 Encoding processing apparatus and method for a moving image  
A video encoder interframe-encodes a moving image captured by a camera and generates a video code stream. An I frame send request manager receives from a receiver of the video code stream a request...
8798143 System method and apparatus for seamlessly splicing data  
A plurality of bit streams are seamlessly spliced. Separate decoders decode each bit stream. A controller selects the decoded pictures according to a re-encoding range in the vicinity of a splicing...
8767824 Video decoder parallelization for tiles  
A method for decoding video includes receiving a frame of the video that includes at least one slice and at least one tile. Each of the at least one slice and the at least one tile are not all...
8755433 Transforming uncompressed video traffic to network-aware ethernet traffic with A/V bridging capabilities and A/V bridging extensions  
Aspects of a system for transforming uncompressed video traffic to network-aware Ethernet traffic with A/V bridging capabilities and A/V bridging extensions may include a graphics processing unit...
8743954 Architecture for adjusting bit rate based on measured quality  
A system and method includes adjusting bit rate based on measured quality in a video conversion module. The video conversion module may be, for example, an encoder or a transcoder. In one...
8731051 Forward and inverse quantization of data for video compression  
A video processor is described, which is useful for implementing a quantization process, in compliance with the H.264 standard. The video processor includes an input, for receiving a block of image...
8731052 Image processing device and image processing method with feedback control  
The present invention can suppress the generated code quantity for each image increment so as not to exceeding the target code quantity without having a usage quantizing factor deviate greatly in a...
8731050 Image encoding apparatus and image decoding apparatus  
An image encoding apparatus encodes image data and includes an image encoding unit that receives an input of the image data and image parameters and generates encoded image data by performing image...
8724697 Locating motion vectors for video data units  
An apparatus performs efficient coding techniques to more efficiently locate motion vector data within neighboring video data units. The apparatus comprises a motion vector (MV) location unit that...
8712220 Video reproducing apparatus and video reproducing method  
According to one embodiment, a video reproducing apparatus includes a video data generating device generating reproduction control video data for displaying a reproduction control image of video...
8707141 Joint optimization of packetization and error correction for video communication  
In one embodiment, a process determines a size of a video unit (e.g., frame) to transmit from a sender to a receiver across a communication channel for an associated video stream, and also...
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...
Matches 1 - 50 out of 306 1 2 3 4 5 6 7 >