Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Takeo Fujita

Narihiro Matoba

Koichi Yamashita

Daisuke Suzuki

Yoshitaka Toyoda

Yoshihiro Ogawa

Hiroaki Sugiura

Yoshiaki Watanabe

Tetsuya Kuno

Tatsuya Mitsugi

Kohei Kurihara

Shotaro Moriya

Takehisa Mizuguchi

Yohei Miki

Takeshi Mitsui

Toru Aoki

Hidetada Nagaoka

Shusaku Takamoto

Takafumi Kasuga

Masumi Dakemoto

An abnormality detection device includes processing circuitry configured to calculate an index value indicating a sum of edge strengths in a second image that is an image captured by a camera for capturing a vehicle compartment at timing before a user enters a vehicle, calculate a differential value between an index value indicating a sum of edge strengths in a reference image, which is an image captured by the camera under an imaging condition equivalent to an imaging condition of the second image before the second image is captured, and the calculated index value, determine whether the differential value is equal to or greater than a threshold value, and execute control to output a warning in a case where it is determined that the differential value is equal to or greater than the threshold value.

Abnormality detection device and abnormality detection method

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 image processing device is provided with an optical flow calculation circuit () for calculating a plurality of optical flows between a first image and a second image captured before the first image, a vector decomposition circuit () for decomposing each of the optical flows into a vanishing point direction vector and an orthogonal vector, a vibration blur amount calculation circuit () for calculating the aggregate values of horizontal and vertical components of the orthogonal vector and calculating the amount of vibration blur of the first image based on the aggregate values, an optical flow starting point correction circuit () for correcting the calculated optical flows by the amount of vibration blur, and a vanishing point calculation circuit () for calculating a vanishing point of the first image based on the corrected optical flows.

Image processing device, image processing method, and program

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

When distortion correction is performed by dividing a distortion correction target region (Atc), a distortion-corrected division region image (D) is generated by performing the distortion correction on each division region of the distortion correction target region and a distortion-corrected image (D) is generated by combining a plurality of distortion-corrected division region images (D). Regarding each pixel of the distortion-corrected image (D), a gain (Gp) is determined according to scaling ratios (MR) of a division region including the pixel and one or more division regions around the division region, high-frequency components (D) of the pixel are multiplied by the gain (Gp), and the product is added to a pixel value of the pixel of the distortion-corrected image (D). This makes it possible to lessen the difference in the sense of resolution among the division regions of the distortion-corrected image (D) and obtain an image having an excellent sense of resolution.

Image processing device and method, image capturing device, program, and record medium

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

An image processing device includes a distance information acquisition unit and an image combination unit. Based on positions of a common subject on a plurality of images captured by a plurality of cameras for capturing surrounding images of a vehicle, the distance information acquisition unit calculates a first subject distance from a vehicle reference position to the common subject, and calculates, based on the first subject distance, a second subject distance to a subject captured by one of the plurality of cameras. Based on the first subject distance and the second subject distance, the image combination unit converts the captured images in which the plurality of cameras are employed as viewpoints to images in which the reference position is employed as a viewpoint, and combines the converted images on a single plane of projection.

Image processing device

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 image processing apparatus and image processing method enlarge an input image (Din) to generate a low-resolution enlarged image (D). Depending on a result of identification of the pattern of the input image (Din), coefficient data (D) for conversion to a high-resolution are selected, and a feature component (DH) of a low resolution is converted to a feature component (DH) of a high resolution. Decision as to whether or not the pattern of a local region of the input image (Din) is flat is made. If it is flat, the coefficient data are so selected that no substantial alteration is made to pixel values in a high-resolution conversion unit (). It is possible to reduce the circuit size and the memory capacity, and to improve the noise immunity, and achieve conversion to a high resolution suitable for implementation by hardware.

Image processing apparatus and image processing method

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

Based on a vehicle driving condition indicated by vehicle control information, an image area to be displayed is determined from a panorama image of a vehicle periphery and a judgment is made about a collision possibility between a vehicle outside object appearing in the image area and the vehicle, so that a display image including the image area is generated and displayed on a displayand the vehicle is controlled to avoid its collision with the vehicle outside object according to a result of the judgment about the collision possibility.

Vehicle periphery display device

An image processing device () is provided with: a noise suppression processor () for creating a noise-reduced image (NRs) by executing spatial filtering on a plurality of pixels, which fall within a reference range that includes a pixel of interest, in an input image (Is); and a distortion correction processor () for correcting distortion by local stretching or shrinking by a magnification factor (R) corresponding to the local amount of distortion in the noise-reduced image (NRs). The reference range is dynamically changed in accordance with the magnification factor (R). Control is performed so that the reference range becomes narrower as the magnification factor (R) increases.

Image processing device, image processing method, image capturing device, computer program, and recording medium

A pattern matching processing unitbinarizes input image data, compares a binarized pattern with a pattern provided for each of groups, and outputs either first information indicating a group to which a pattern that matches the binarized pattern belongs or second information indicating no match. A 0-degree direction dedicated filter, a 45-degree direction dedicated filter, a 90-degree direction dedicated filter, and a 135-degree direction dedicated filterwhich are disposed correspondingly to the groups carry out smoothing processes according to the direction of an edge of the image, respectively. When the pattern matching processing unit outputs the first information, a selectorselects the output of either one of the filters corresponding to the group as output image data, whereas when the pattern matching processing unit outputs the second information, the selector outputs the input image dataas the output image data

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Tokyo, Japan

Takeo Fujita