Abstract: There is provided a computer-implemented method of enhancing data privacy. One or more tensors of numeric data are determined, at a processor, in dependence on input data. A transform is determined in dependence on user-associated data, which may be user input or biometric data. Each of the one or more tensors of numeric data are transformed into at least two fragments of data by applying the transform. Each of the fragments of data obfuscates the numeric data. Each of the at least two fragments of data are stored separately at a respective geographically separated storage system.

Abstract: An apparatus is described that include a line buffer unit composed of a plurality of a line buffer interface units. Each line buffer interface unit is to handle one or more requests by a respective producer to store a respective line group in a memory and handle one or more requests by a respective consumer to fetch and provide the respective line group from memory. The line buffer unit has programmable storage space whose information establishes line group size so that different line group sizes for different image sizes are storable in memory.

Abstract: Various types of objects or occurrences can be automatically detected in input media being processed using a transcoder. The media content can be analyzed to determine various transitions, such as scene changes, which provide insight into useful locations for performing object recognition. Representative frames subsequent a transition are analyzed to determine whether they are appropriate for image analysis, using factors such as amount of motion, brightness, color, or pixel disparity within the frame. If a representative frame meets the various criteria, that frame is sent to an object recognition service for analysis. The output of the service can be a set of object tags that provide information identifying the object and its location in the media. The output tags can be encoded into the output video or stored to an associated metadata file, among other such options.

Abstract: In encoding, a frequency-domain sample sequence derived from an acoustic signal is divided by a weighted envelope and is then divided by a gain, the result obtained is quantized, and each sample is variable-length encoded. The error between the sample before quantization and the sample after quantization is quantized with information saved in this variable-length encoding. This quantization is performed under a rule that specifies, according to the number of saved bits, samples whose errors are to be quantized. In decoding, variable-length codes in an input sequence of codes are decoded to obtain a frequency-domain sample sequence; an error signal is further decoded under a rule that depends on the number of bits of the variable-length codes; and from the obtained sample sequence, the original sample sequence is obtained according to supplementary information.

Abstract: The invention relates to methods, devices, systems and computer program products where input image data is received for processing in a computer system, a first transform is carried out to the input image data, the transform being done in a first direction with respect to the input image data, to obtain first transformed image data, a transposing operation is carried out to the first transformed image data to obtain first transposed image data, and a second transform in a transform is carried out to the first transposed image data, the second transform being done in a second direction with respect to the input image data, to obtain second transformed image data. The first transform and the second transform may be carried out in a processor in a parallel manner, and the transposing operation may be carried out at least partially using registers of the processor.

Abstract: A positioning system and a method thereof are provided. In the positioning method, a first and a second pose information of a moving device are obtained by a first positioning device and a second positioning device respectively, wherein the first pose information corresponds to the second pose information. In addition, a plurality of first candidacy pose information is generated in an error range of the first pose information. Furthermore, a plurality of second candidacy pose information is generated according to the first pose information respectively. One of the second candidacy pose information having a smallest error derived from the second pose information is selected for updating the pose information of the first positioning device and parameter information of the second positioning device. Thereby, pose information of the moving device is updated and parameter information of the second orientation devices is calibrated simultaneously.

Abstract: A still image acquisition device includes: a fluctuation detection unit (5) for detecting a horizontal or a vertical fluctuation generated in an imaging device; light refraction means (10A, 10B) for refracting light into an arbitrary direction; hand shake control means (6A) for controlling the refraction direction of the light by the light refraction means; control amount detection means (8A, 8B) for detecting control amounts of the light refraction means (10A, 10B); angle calculation means (6B) for calculating the hand shake angle of the horizontal direction or the vertical direction from the detected control amounts; acquisition reference time decision means (6C) for deciding a reference time for acquiring a still image according to the time when the absolute value of the calculated hand shake angle of the horizontal direction or the vertical direction is zero or a minimum value; and a still image processing unit (25) for acquiring the hand shake-corrected image corresponding to a moment immediately after t

Abstract: A system, apparatus, method and article to perform buffering techniques are described. The apparatus may include a buffer having a fixed number of storage slots that store reconstructed picture representations received from an image processing module. Also, the apparatus may include a buffer status unit to store a multiple information items to indicate one or more buffer characteristics of the buffer. Further, the apparatus may include a buffer control module to manage storage within the buffer.

Abstract: Low complexity (16 bit arithmetic) H.264 video compression replaces a single quantization table for all quantization parameters with multiple quantization tables and thereby equalizes quantization shifts and round-off additions; this eliminates the need for 32-bit accesses.

Abstract: A wavelet-based image compression system and method are presented. Compression is accomplished by performing a wavelet transformation of an input digital image. The resulting wavelet coefficients are compared to a threshold value. Coefficients falling below the threshold are discarded. The remaining coefficients are quantized. The quantized coefficients are then compressed using an entropy encoding technique, such as arithmetic, run length, or Huffman encoding, or a combination of Huffman and run length encoding. The wavelet transform can be an integer wavelet transform derived using a lifting scheme or correction method, while the quantization scheme can be sub-band oriented. Input color image pixels can be reduced using a color table. In addition, color pixels can be transformed between color spaces prior to wavelet transformation.

Abstract: A method and apparatus for adaptive pixel estimation under high error rate conditions are disclosed. Classes are created, feasible classes are determined, and an optimal filter is applied to perform the pixel estimation.

Abstract: Digital multimedia is broadcast by a wireless provider by first decoding incoming multimedia streams and then encoding each stream using one of at least two encoding parameter sets as appropriate for the particular user or groups of users to receive the stream.

Abstract: A multi-layer embedded bitstream is generated from a subband decomposition by partitioning each subband of the decomposition into a plurality of blocks; and encoding the blocks of each subband. The blocks of each subband are coded independently of each other. Resulting is a block bitstream corresponding to each block. Truncation points may be identified on the block bitstreams, and selected portions of the block bitstreams may be concatenated, layer-by-layer, to form the single-layer or multi-layer bitstream. Syntax information may also be added to the multi-layer bitstream. An image can be reconstructed from the embedded bitstream at a desired bit-rate or resolution by reading the syntax information, randomly accessing desired portions of the block bitstreams, decoding the randomly accessed portions, dequantizing the decoded portions, and applying an inverse transform to the dequantized portions.

Abstract: Techniques for classifying video frames using statistical models of transform coefficients are disclosed. After optionally being decimated in time and space, image frames are transformed using a discrete cosine transform or Hadamard transform. The methods disclosed model image composition and operate on grayscale images. The resulting transform matrices are reduced using truncation, principal component analysis, or linear discriminant analysis to produce feature vectors. Feature vectors of training images for image classes are used to compute image class statistical models. Once image class statistical models are derived, individual frames are classified by the maximum likelihood resulting from the image class statistical models. Thus, the probabilities that a feature vector derived from a frame would be produced from each of the image class statistical models are computed.

Abstract: Digital image encoding/decoding apparatus and methods for recording a signature image using watermarking, and for restoring the recorded signature image are provided.

Abstract: A video coding system that codes video objects as scalable video object layers. Data of each video object may be segregated into one or more layers. A base layer contains sufficient information to decode a basic representation of the video object. Enhancement layers contain supplementary data regarding the video object that, if decoded, enhance the basic representation obtained from the base layer. The present invention thus provides a coding scheme suitable for use with decoders of varying processing power. A simple decoder may decode only the base layer of video objects to obtain the basic representation. However, more powerful decoders may decode the base layer data of video objects and additional enhancement layer data to obtain improved decoded output. The coding scheme supports enhancement of both the spatial resolution and the temporal resolution of video objects.

Abstract: Digital image coding/decoding apparatus using watermarking, and methods thereof are provided.

Abstract: An input digital video signal is encoded to produce at least first and second hierarchical data signals which respectively represent a first video signal and a lower resolution video signal. Each pixel data signal of the second hierarchical data signal is calculated as an average of N pixel data signals of the input digital video signal. The second hierarchical data signal is output together with first hierarchical pixel data signals representing only N−1 of the N pixel data signals of the input digital video signal. The first hierarchical pixel data signals may be differential signals produced by subtracting each of the N−1 pixel data signals from the average value of the N pixel data signals. During decoding the Nth pixel data signal is reconstructed from the N−1 pixel data signals and the average value provided as the corresponding second hierarchical pixel signal.

Abstract: An object data processing apparatus for decoding N pieces of coded data (N=positive integer) obtained by compressively coding N pieces of object data which constitute individual data to be recorded or transmitted and have a hierarchical structure, for each object data. This apparatus includes hierarchical information extraction means for extracting hierarchical information showing the hierarchical relationship of the N pieces of object data, according to the coded data; and table creation means for creating, according to the hierarchical information, an object table on which the respective object data are correlated with coded data of the respective object data. Therefore, the apparatus can perform extraction, selection, or retrieval of coded data corresponding to a specific object at high speed, and this enables the user to edit or replace the object data in short time with high controllability.

Abstract: A video coding system that codes video objects as scalable video object layers. Data of each video object may be segregated into one or more layers. A base layer contains sufficient information to decode a basic representation of the video object. Enhancement layers contain supplementary data regarding the video object that, if decoded, enhance the basic representation obtained from the base layer. The present invention thus provides a coding scheme suitable for use with decoders of varying processing power. A simple decoder may decode only the base layer of video objects to obtain the basic representation. However, more powerful decoders may decode the base layer data of video objects and additional enhancement layer data to obtain improved decoded output. The coding scheme supports enhancement of both the spatial resolution and the temporal resolution of video objects.