An audio signal processing apparatus includes: a division section that divides at least two or more channel audio signals into components in a plurality of frequency bands; a phase difference calculation section that calculates a phase difference between the two or more channel audio signals at each the frequency band; a level ratio calculation section that calculates a level ratio between the two or more channel audio signals at each the frequency band; a sound image localization estimation section that estimates, based on the level ratio or the phase difference, sound image localization at each the frequency band; and a control section that controls the estimated sound image localization at each the frequency band by adjusting the level ratio or the phase difference

Audio signal processing apparatus, audio signal processing method, and audio signal processing program

A computer method of creating a super-resolved grayscale image from lower-resolution images using an L1 norm data fidelity penalty term to enforce similarities between low and a high-resolution image estimates is provided. A spatial penalty term encourages sharp edges in the high-resolution image, the data fidelity penalty term is applied to space invariant point spread function, translational, affine, projective and dense motion models including fusing the lower-resolution images, to estimate a blurred higher-resolution image and then a deblurred image. The data fidelity penalty term uses the L1 norm in a likelihood fidelity term for motion estimation errors. The spatial penalty term uses bilateral-TV regularization with an image having horizontal and vertical pixel-shift terms, and a scalar weight between 0 and 1. The penalty terms create an overall cost function having steepest descent optimization applied for minimization. Direct image operator effects replace matrices for speed and efficiency.

Robust reconstruction of high resolution grayscale images from a sequence of low resolution frames

According to one embodiment, a secondary battery device includes a first assembled battery including a plurality of secondary battery cells, a second assembled battery including a plurality of secondary battery cells and connected in series to a low-potential terminal of the first assembled battery, a disconnecting module capable of mechanically switching connection between the first assembled battery and the second assembled battery, a voltage measurement circuit configured to measure voltages of the plurality of secondary battery cells of the second assembled battery, a first power source wiring connected between a high-potential terminal of the second assembled battery and the voltage measurement circuit, a second power source wiring connected between a low-potential terminal of the second assembled battery and the voltage measurement circuit, and a filter connected between the first power source wiring and the second power source wiring

Secondary battery device and vehicle

An apparatus for processing an audio signal includes a separator for separating an input audio signal into a first audio signal designated by a user and a second audio signal not containing the first audio signal, a measurement unit for measuring an audio volume balance between the first audio signal and the second audio signal, and an adjuster for calculating an adjustment value to the audio volume of the first audio signal and an adjustment value to the audio volume of the second audio signal based on an audio volume balance designated by the user, and adjusting the audio volume balance between the first and second audio signals.

Apparatus, method and program for processing audio signal

An audio signal processing apparatus includes: a dividing section dividing each of audio signals of a plurality of channels into a plurality of frequency bands; a phase difference calculating section calculating a phase difference between the audio signals of the plurality of channels, for each of the plurality of frequency bands divided by the dividing section; a level ratio calculating section calculating a level ratio between the audio signals of the plurality of channels, for each of the plurality of frequency bands divided by the dividing section; and an audio signal processing section performing output gain setting with respect to divided signals obtained by the dividing section, on the basis of the phase difference and the level ratio for each of the plurality of frequency bands calculated by the phase difference calculating section and the level ratio calculating section.

Audio signal processing apparatus, and audio signal processing method

Audio signal processing apparatus is disclosed. The audio signal processing apparatus includes a first audio signal extracting section, a second audio signal extracting section, a sense-of-depth controlling section, a sense-of-sound-expansion controlling section, a control signal generating section, and a mixing section. The first audio signal extracting section extracts a main audio signal. The second audio signal extracting section extracts a sub audio signal. The sense-of-depth controlling section processes the extracted main audio signal to control a sense of depth. The sense-of-sound-expansion controlling section processes the extracted sub audio signal to vary a sense of sound expansion. The control signal generating section generates a first control signal with which the sense-of-depth controlling section is controlled and a second control signal with which the sense-of-sound-expansion controlling section is controlled. The mixing section mixes an output audio signal of the sense-of-depth controlling section and an output audio signal of the sense-of-sound-expansion controlling section.

Audio signal processing apparatus, audio signal processing method, program, and input apparatus

In order to decrease a required memory capacity of a line memory and to efficiently compress an image by coding, even when character information is contained in a high-resolution image, each time the block of an image that is equally divided into M (M: an arbitrary integer greater than 1) blocks in the horizontal direction is updated, difference data between color code data at corresponding pixel positions in the horizontal line and the adjacent immediately-preceding horizontal line with respect to each horizontal line within the block is detected by a line memory and an exclusive-OR circuit. After a run has been detected from the difference data corresponding to the horizontal lines from the exclusive-OR circuit by a run end detecting circuit, when a coded word is run-length coded by a code creating and outputting circuit, a coded word corresponding to a first run is run-length coded in the state in which information of difference data of the run is contained in this coded word and coded words corresponding to runs other than the first run are run-length coded in the state in which transition type information, indicative of the type of transition of the difference data of the immediately-preceding run to the difference data of the run is contained in the coded words.

Image encoding device and method, and encoded image decoding device and method

PROBLEM TO BE SOLVED: To change a sense of distance or a sense of expanse by applying signal processing to extracted sound components after extracting specific components in sound signals. SOLUTION: A specific component enhancement processor 31, for example, extracts sound signals of human voice included in the sound signals. The sense of distance is changed by the processing for changing frequency characteristics and sound volume of the extracted sound signals. A specific component enhancement processor 34, for example, extracts sound signals of cheers and applauds included in the sound signals. The sense of expanse is changed, for example, by applying surround processing to the extracted sound signals. The sound signals in which the sense of distance and the sense of expanse are changed are reproduced from a speaker 19 by synthesizing them. In this way, it is possible to allow a user to further clearly hear voice of, for example, a commentator or the like without changing the entire sound volume balance, and also, possible to allow the user to have a realistic sense of being there by the enhancement of the sense of expanse of realistic sound such as the cheers and applauds. COPYRIGHT: (C)2007,JPO&INPIT

Sound signal processor, sound signal processing method and program, and input device

Image coding apparatus and method thereof and coded image decoding apparatus and method thereof

PROBLEM TO BE SOLVED: To provide an image encoder for reducing the capacity of a line memory and efficiently applying encoding compression to a high resolution image even when the high resolution image includes character information. SOLUTION: The line memory 41 and an exclusive OR circuit 42 sequentially detect a difference between color codes at corresponding pixel positions in a horizontal line and a just preceding horizontal line adjacent to the horizontal line as to each of the horizontal lines in a block every time the block is updated with respect to an image equally divided in M (M: an optional integer of 1 or over) in the horizontal direction. Further, when a code generation / output circuit 44 performs run length encoding after a run end detection circuit 43 detects a run from the difference corresponding to the horizontal lines from the circuit 42, the circuit 44 applies the run length encoding to a code word with respect to the first run, the code word including difference information for the run, and the circuit 44 respectively applies the run length encoding to other code words corresponding to the runs other than the first run, the other code words including transition type information denoting a type of transition to the difference for the concerned run from the difference for its just preceding run in place of the difference information for the concerned run. COPYRIGHT: (C)2004,JPO&NCIPI

Hideya Muraoka

Papers

Audio signal processing apparatus, audio signal processing method, program, and input apparatus

Image encoding device and method, and encoded image decoding device and method

Sound signal processor, sound signal processing method and program, and input device

Image coding apparatus and method thereof and coded image decoding apparatus and method thereof

Image encoder and method, and image decoder and method