Mitsubishi Electric Corporation

Fujitsu Corporation

Mitsubishi Denki Kabushiki Kaisha

Nittobo Acoustic Engineering Co., Ltd.

Adv Antest Corporation

Koichi Yamashita

Narihiro Matoba

Daisuke Suzuki

Hiroaki Sugiura

Takeo Fujita

Tetsuya Kuno

Takashi Itow

Kohei Kurihara

Shinji Ohashi

Kengo Azegami

Toshiki Fujino

Yoshitaka Toyoda

Kozo Ishida

Mitsuhiko Ohta

Tadayoshi Kono

Hirohiko Inagaki

Yasushi Satake

Katsuyuki Kanazawa

Akio Yamada

Shinji Sato

Takashi Ito

Naoki Nishio

Tetsuya Hayashi

Yoshio Hirose

Kenichi Kawakami

Takeshi Sasaki

Tomoki Yoshimura

Masanori Ishizuka

Katsuki Miyawaki

Yoshio Tadahira

Junko Makita

Ryoichi Ohe

Tomonori Oohashi

Shigeki Kawahara

Masateru Nakano

Kazuhiro Kurisaki

Shoichiro Kashiwakura

Tsubasa Onda

Kobayashi Katsuhiko

Masahiko Susa

Kenichi Morio

Toshihito Matsui

Ataru Kumagai

Shoutarou Moriya

Katsutoshi Sugiyama

The infrared image processing device includes a thermal image sensor that receives infrared rays and outputs a signal corresponding to the infrared rays, a thermal image generation unit that generates a plurality of thermal images based on the signal, a smoothing processing unit that performs a smoothing process on each pixel of each of the plurality of thermal images by using a pixel value of a vicinal pixel, thereby calculating a plurality of smoothed images and calculating smoothed pixel values that are each image's pixel values after undergoing the smoothing, a correction coefficient calculation unit that calculates a correction coefficient set including a first correction coefficient and a second correction coefficient from the thermal images and the smoothed images, and a thermal image correction unit that corrects the thermal images by using the correction coefficient set.

Infrared image processing device and infrared image processing method

Provided is an infrared imaging device capable of reducing streak noise by calculating correction coefficients for correcting streak noise from a single image. The infrared imaging device includes: a thermal image generator to generate a single thermal image on the basis of a signal from a thermal image sensor; a correction coefficient calculator to calculate multiple correction coefficients included in a correction equation for converting pixel values of pixels included in the single thermal image into target values in which streak noise is reduced; and a thermal image corrector to correct a thermal image generated by the thermal image generator by using the multiple correction coefficients, wherein the correction coefficient calculator calculates the multiple correction coefficients on the basis of difference between pixel values of pixels arranged in a direction in which the streak noise occurs in the single thermal image.

Infrared imaging device and non-transitory computer-readable storage medium

A background image generator () stores, in a storage device (), a skeleton image obtained by calculating a feature quantity for each of multiple first thermal images (Din) obtained by imaging by a thermal image sensor () in the same field of view or multiple sorted images (Dc) generated from the first thermal images, generating an average image from the first thermal images or sorted images, sharpening the average image, and then extracting a skeleton component. An image corrector () corrects, by using the skeleton image stored in the storage device (), a second thermal image (Din) obtained by imaging by the thermal image sensor in the same field of view as the first thermal images, thereby generating a corrected thermal image. It is possible to generate a sharp thermal image with a high S/N ratio.

Image processing device, thermal image generation system, and recording medium

An image capturing device includes an image sensor and processing circuitry. The processing circuitry calculates a pixel value fluctuation amount as a fluctuation amount of each of the pixel values; calculates a line fluctuation amount as an average value of N pixel value fluctuation amounts of N pixels; calculates a variance value of the N pixel value fluctuation amounts from the N pixel value fluctuation amounts and the line fluctuation amount; calculates a movement adaptive weight based on the variance value; calculates a line fluctuation noise correction amount, corresponding to each of the pixel values outputted from the image sensor, from the line fluctuation amount and the movement adaptive weight; and corrects each of the pixel values outputted from the image sensor by using the line fluctuation noise correction amount and thereby generates an image signal after the correction.

Image capturing device and line variation noise reduction device

A distance measurement apparatus includes: a control unit that makes an imaging unit acquire a plurality of first captured images corresponding to light patterns when making an optical system set the focal length to a first focal length, and that makes the imaging unit acquire second captured images corresponding to the light patterns when making the optical system set the focal length to a second focal length; a first distance measurement unit that determines presence or absence of an image blur and acquires a first distance to a subject from an image blur index value indicating an extent of the image blur; a second distance measurement unit that acquires a second distance to the subject based on triangulation; and a measurement result synthesis unit that outputs the first distance for a pixel with the image blur and that outputs the second distance for a pixel with no image blur.

Distance measurement apparatus and distance measurement method

An image generation device includes an imaging unit, a projection unit, and a distance information generation unit, and a projection pattern includes unit patterns arranged in a plurality of rows in a first direction and in a plurality of columns in a second direction. A plurality of light dots include first dots and second dots which are light dots of different states from each other; the unit patterns arranged in the first direction have the light dot arrangements identical with each other; the unit patterns arranged in the second direction have light dot arrangements different from each other; the number of first dots among a plurality of light dots arranged in the first direction in each of the unit patterns is the same fixed number in each row in the second direction; and in a location other than the unit pattern, the number of first dots included in a row of the same length as the unit pattern in the second direction differs from the fixed number, in a certain row in the second direction.

Image generation device, image generating method, and pattern light generation device

An object having a high attention degree is selected from objects detected by a detection means, brightness of a captured image is calculated by using an attention region corresponding to the selected object as a detection frame, and exposure control is performed based on the calculated brightness. The attention degree is evaluated higher with the decrease in the distance. Alternatively, the attention degree is evaluated higher as the direction becomes closer to the traveling direction. The attention region is made larger with the decrease in the distance to the object. It is also possible to judge the type of the object and determine the size of the attention region based on the result of the judgment. A subject to be paid attention to is made clearly visible.

Image capturing device and method, program, and record medium to perform exposure control based on the brightness in an attention area corresponding to a detected object

In a camera which electronically realizes panning, tilting, and zooming, on the basis of the luminance detected in each frame period (n&#x2212;1), a condition of exposure for two frame periods thereafter (n+1), and digital gain for three frame periods thereafter (n+2) are set. When an instruction for changing the extracted region is received in a certain frame period (n&#x2212;1), the region extracted from the image is changed three frame periods thereafter. It is possible to achieve a stable exposure control by which the luminance of the image varies little even when the region extracted from the image is switched.

Image processing apparatus and method, and program and recording medium

In the combination of a wide dynamic range by combining a first image and a second image of different light exposure conditions, pixel values at which cumulative frequency proportions (B) become first and second reference values are generated as first and second index values (Sa, Lb) with regard to the first and second images, and first and second light exposure amounts (ES, EL) are controlled under first and second target conditions that the first and second index values (Sa, Lb) have predetermined relations with first and second target values (Sat, Lbt), respectively. It is possible to shorten a time taken until convergence of the light exposure amount in relation to a change of brightness of a subject.

Image processing device and method, program, and record medium for generating wide dynamic range images

An image generation device includes: a projector for projecting pattern light of a near-infrared wavelength at intervals; an imager for outputting an imaging signal of an imaged image; a unit for generating a pattern light image by obtaining a difference between the imaging signal when the pattern light is projected and the imaging signal when the pattern light is not projected, and generating an ambient light image from the imaging signal when the pattern light is not projected; a determiner for determining a type of the ambient light; and a generator for estimating, from the type, a component due to light of a near-infrared wavelength in the ambient light image, and generating a visible light image by subtracting the component from the ambient light image. The determiner determines the type from a proportion of R, G, and B components in the imaged image, ambient light image, or visible light image.

Image generation device

An imaging signal obtained during pattern light projection and an imaging signal during pattern light non-projection are separated from an imaging signal, and the projection angle of a light spot is specified on the basis of an array of light spots in the projection image component. The projected pattern light includes a plurality of cells that accompanies the light spots and that constitutes a discrimination code, and specifies the position of the light spots accompanied by the discrimination code in the projection pattern on the basis of the discrimination code. Distance information to an object to be imaged can be acquired using a low amount of computation.

Image generation device for acquiring distances of objects present in image space

Provided are a sound generation system and a sound recording system, which are placed in a room to adjust sound. A columnar body is disposed around a sound source to adjust how much sound of a low-tone range, as well as of a middle- and high-tone range, is absorbed and diffused. Moreover, a columnar body is disposed around a recording device to adjust how much sound of a low-tone range, as well as of a middle- and high-tone range, is absorbed and diffused. The columnar bodies may be made of a combination of different diameters and/or lengths. The arrangement distances may be random. With the columnar body disposed at the most appropriate location, it is possible to adjust sound in a wide band.

Sound generation system, sound recording system, sound generation method, sound recording method, sound adjusting method, sound adjusting program, sound field adjusting system, speaker stand, furniture, speaker cabinet, and speaker device

A region determination circuit () determines whether or not each of the pixels in an image is within a region subject to correction, in which pixels having at most a predetermined brightness level appear with a frequency equal to or less than a predetermined value. An offset level generation circuit () generates an offset level (Offset) on the basis of the brightness of the pixels determined to be within the region subject to correction. An offset subtraction circuit () subtracts the offset level (Offset) from the image signal (Yi) to generate an offset image signal (Yofst). A gain generation circuit () generates a gain for the offset image signal (Yofst). A gain multiplication circuit () multiplies the offset image signal (Yofst) by the gain to generate a corrected image signal (Ya).

Image processing device and method to correct brightness signal of an input image

An imaging device has an intra-plane pixel summation unit and an inter-plane pixel summation unit. In the frame of interest, the intra-plane pixel summation unit sums the signals of the pixel of interest and selected highly correlated neighboring pixels to generate an intra-plane sensitized signal and a code indicating the pattern formed by the pixel of interest and the selected pixels. The inter-plane pixel summation unit selects pixels for summation from among the pixels positioned identically to the pixel of interest and pixels in the neighborhood of the identically positioned pixels in one or more frames neighboring the frame of interest on the basis of the agreement or disagreement of their pixel summing pattern codes and correlation of their intra-plane sensitized signals. In a Bayer array imaging device, enhanced sensitivity is obtained without causing color mixing.

Imaging device

For each pixel in an image (Din), a contrast correlation value (CT) is detected for peripheral areas centered around the pixel to be corrected (), a contrast enhancement coefficient (Ken) is determined in accordance with the contrast correlation value (CT) (), and in accordance with the enhancement coefficient (Ken), local contrast is enhanced for each pixel and an intermediate image (D) is generated (). When performing noise reduction () by smoothing the intermediate image (D) in the time direction, the degree of noise reduction is controlled in accordance with a noise reduction coefficient (Knr) that is large where the enhancement coefficient (Ken) is large. With respect to a low-contrast image such as one captured under fog, haze or other poor weather conditions, the contrast in areas having reduced contrast is appropriately improved, and the noise that is enhanced in conjunction with contrast improvement is reduced, enabling a high quality image to be obtained.

Image processing device and method

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Tokyo, Japan

Koichi Yamashita