Abstract: A periphery monitoring apparatus for a work vehicle includes a plurality of obstacle detection sensors, a warning region setting section and a warning section. The obstacle detection sensors are mounted on the work vehicle, and each of the obstacle detection sensors is configured to determine a relative position of an obstacle with regard to the work vehicle by detecting the obstacle in the surroundings of the work vehicle. The warning region setting section is configured to set a warning region, where it is necessary to warn a driver of a presence of the obstacle, according to a movement state of the work vehicle. The warning section is configured to warn a driver that the relative position of the obstacle is positioned in the warning region.

Abstract: A periphery monitoring device (10) comprises a monitor (50) that displays a bird's-eye image (200) that includes an image of a dump truck (1), a payload meter ECU (21) that detects the load of the dump truck (1), and a controller (20) that switches the size of a cargo image (C1) displayed over the vessel (4) of the dump truck (1) and displays this image on the monitor (50) on the basis of the detection result of the payload meter ECU (21). In a load display device for a dump truck, a plurality of cameras are installed and the load display device monitors the periphery by using a bird's-eye image that combines images obtained by the plurality of cameras. The load display device includes a display component, a detector and a display controller. The display component is configured to display the bird's-eye image including an image of the dump truck. The detector is configured to detect a load of the dump truck.

Abstract: An image correction circuit includes: a region determining means for determining an intermediate luminance region in each image frame on the basis of the description of input image data; a luminance distribution acquiring means for acquiring a luminance distribution of input image data in the determined intermediate luminance region in each image frame; a determining means for determining an input/output characteristic line in each image frame by adaptively changing a predetermined reference input/output characteristic line on the basis of the acquired luminance distribution of the intermediate luminance region, the input/output characteristic line defining the substance of image correction on input image data; and a correction executing means for executing image correction on input image data on the basis of the determined input/output characteristic line.

Abstract: An image correction method includes the steps of: acquiring a black-side intermediate luminance distribution as a luminance distribution in a region between a lowest luminance in a given intermediate luminance region in a luminance distribution of input image data in an image frame and a reference luminance provided in the center of the intermediate luminance region; determining a low-luminance-region input/output characteristic curve on the basis of the acquired black-side intermediate luminance distribution, the low-luminance-region input/output characteristic curve passing through a reference point, in the reference input/output characteristic line, determined in accordance with the reference luminance and through a minimum luminance point of the reference input/output characteristic line; and executing image correction on input image data having a luminance which is lower than the reference luminance on the basis of the determined low-luminance-region input/output characteristic curve.

Abstract: A three-dimensional image processing apparatus includes a parallax distribution measurement unit that measures parallax distribution of a three-dimensional image configured by an image for a left eye and an image for a right eye at a center of a screen, a high-frequency parallax amount movement observation unit that observes movement of an amount of parallax whose frequency is high in the measured parallax distribution, and a depth control unit that judges a direction of movement of an image to be paid attention to on the basis of the movement of the amount of parallax whose frequency is high and that controls a depth of the three-dimensional image in accordance with the direction of the movement of the image to be paid attention to.

Abstract: A display device includes a first measurement unit measuring information on luminance of a first image signal to output a first measurement result, a second measurement unit measuring information on a luminance of a second image signal to output a second measurement result, a comparator comparing the first measurement result with the second measurement result to output differential data, a correction amount determination unit determining a correction amount for the first image signal and/or the second image signal based on the differential data, and a correction unit correcting the luminance of the first image signal and/or the second image signal based on the correction amount.

Abstract: An image correction circuit capable of preventing a loss of gray levels in a luminance region at the time of the direct current level conversion of a luminance signal to improve the quality of a displayed image. The image correction circuit detects an average peak level of input image data in each image frame, and corrects the input image data to lower the luminance of input image data in an intermediate luminance region according to the average peak level while reducing the luminance of input image data at a predetermined rate in at least of a low luminance region.

Abstract: An image processing apparatus according to an embodiment of the present invention includes a correction interval setting unit for setting a correction interval; a correction interval dividing unit for dividing the correction interval into a black side interval and a white side interval; histogram calculating units for calculating a total number of luminance histograms of the black side interval and the white side interval, respectively; gain setting units for setting gains of a ? curve for raising the luminance and a ? curve for lowering the luminance, respectively; gamma curve generating units for generating a gamma curve for raising the luminance and a gamma curve for lowering the luminance, respectively; a gamma curve combining unit for combining the gamma curve for raising the luminance and the gamma curve for lowering the luminance; and a luminance conversion unit for performing the luminance conversion process using the combined gamma curve.

Abstract: An image signal processing device including: a central area control processing unit that enlarges or reduces a central image segment of a stereoscopic image signal by a magnification factor according to a desired stereoscopic effect; a surrounding area control processing unit that reduction-processes a surrounding image segment of the stereoscopic image signal by a corresponding magnification factor when the central area control processing unit enlarges the central image segment, and enlargement-processes a surrounding image segment of the stereoscopic image signal by a corresponding magnification factor when the central area control processing unit reduces the central image segment; and a transition area control processing unit that performs, in an image segment that transitions between the central image segment and the surrounding image segment, a process of connecting a gap between the enlargement and reduction factors of the central image segment and the surrounding image segment using non-linear scaling.

Abstract: A video signal processing apparatus includes a histogram detecting unit detecting a histogram of a luminance distribution of either one of a left-eye video signal and a right-eye video signal among input stereoscopic video signals, a gamma-curve calculating unit calculating a gamma curve based on the histogram detected by the histogram detecting unit, and a gamma-curve output unit correcting the left-eye video signal and the right-eye video signal based on the gamma curve calculated by the gamma-curve calculating unit.

Abstract: An image correction circuit capable of easily achieving adaptive color correction on the basis of a luminance correction amount is provided. An image correction circuit includes: a luminance correction section for performing luminance correction on input image data; and a color correction section for performing adaptive color correction on input image data on the basis of the following formula (1): Cout?Cin×[1+M×(?Y/L)]??(1) where Cout represents a chrominance signal after color correction, Cin represents a chrominance signal before color correction, M represents an adaptive color correction magnitude which is a fixed positive value, ?Y represents the total amount of luminance correction by the luminance correction section, L represents a fixed positive value satisfying L<(Ymax/2), and Ymax represents maximum luminance of input image data.

Abstract: There is provided an image processing apparatus, an image display and an image processing method which are capable of preventing an unnatural change in image quality to image processing. A luminance distribution detecting circuit detects a luminance distribution as the histogram distribution of YUV signals. A gain calculating circuit and a gain limiter detect a gain variation on the basis of luminance distribution data. The gain limiter limits the gain variation to a gain variation threshold or less. The gain limiter and a delay circuit carry over the gain variation of a portion exceeding the gain variation threshold to the next image frame so as to modify the gain variation. A ? correction circuit performs image processing (contrast control) on the YUV signals on the basis of the gain variation modified.

Abstract: The present invention provides a filter device allowing unnatural variation in image quality caused by image processing to be suppressed. The filter device including a filter section performing a filtering operation on an input image data so that, when time-varying amount in a total frequency value in a neighboring-classes block configured with a couple of neighboring classes in a histogram distribution of the input image data is equal to or less than a predetermined value, time-varying amount of a frequency value in each of the classes in the neighboring-classes block is suppressed to be equal to or less than a predetermined limitation value.

Abstract: An image processing apparatus according to an embodiment of the present invention includes a correction interval setting unit for setting a correction interval; a correction interval dividing unit for dividing the correction interval into a black side interval and a white side interval; histogram calculating units for calculating a total number of luminance histograms of the black side interval and the white side interval, respectively; gain setting units for setting gains of a ? curve for raising the luminance and a ? curve for lowering the luminance, respectively; gamma curve generating units for generating a gamma curve for raising the luminance and a gamma curve for lowering the luminance, respectively; a gamma curve combining unit for combining the gamma curve for raising the luminance and the gamma curve for lowering the luminance; and a luminance conversion unit for performing the luminance conversion process using the combined gamma curve.

Abstract: An image correction circuit includes: a region determining means for determining an intermediate luminance region in each image frame on the basis of the description of input image data; a luminance distribution acquiring means for acquiring a luminance distribution of input image data in the determined intermediate luminance region in each image frame; a determining means for determining an input/output characteristic line in each image frame by adaptively changing a predetermined reference input/output characteristic line on the basis of the acquired luminance distribution of the intermediate luminance region, the input/output characteristic line defining the substance of image correction on input image data; and a correction executing means for executing image correction on input image data on the basis of the determined input/output characteristic line.

Abstract: An image correction method includes the steps of: acquiring a black-side intermediate luminance distribution as a luminance distribution in a region between a lowest luminance in a given intermediate luminance region in a luminance distribution of input image data in an image frame and a reference luminance provided in the center of the intermediate luminance region; determining a low-luminance-region input/output characteristic curve on the basis of the acquired black-side intermediate luminance distribution, the low-luminance-region input/output characteristic curve passing through a reference point, in the reference input/output characteristic line, determined in accordance with the reference luminance and through a minimum luminance point of the reference input/output characteristic line; and executing image correction on input image data having a luminance which is lower than the reference luminance on the basis of the determined low-luminance-region input/output characteristic curve.

Abstract: An image correction circuit capable of preventing a loss of gray levels in a luminance region at the time of the direct current level conversion of a luminance signal to improve the quality of a displayed image is provided. An image correction circuit includes: a luminance detection means for detecting an average peak level of input image data in each image frame; and an image correction means for correcting the input image data so as to lower the luminance of input image data in an intermediate luminance region according to the average peak level while reducing the luminance of input image data at a predetermined rate in at least of a low luminance region.

Abstract: An image correction circuit capable of easily achieving adaptive color correction on the basis of a luminance correction amount is provided. An image correction circuit includes: a luminance correction means for performing luminance correction on input image data; and a color correction means for performing adaptive color correction on input image data on the basis of the following formula (1): Cout?Cin×[1+M×(? Y/L)] ??(1) where Cout represents a chrominance signal after color correction, Cin represents a chrominance signal before color correction, M represents an adaptive color correction magnitude which is a fixed positive value, ? Y represents the total amount of luminance correction by the luminance correction means, L represents a fixed positive value satisfying L<(Ymax/2), and Ymax represents maximum luminance of input image data.

Abstract: An operation-supporting apparatus includes: an operation request input unit that inputs information relating to operation request items of plant equipment; an operating conditions setting unit that converts operation request input information to operating parameters; an operation history creation unit that creates an operation history by chronologically processing the operating parameters; a breakdown statistics database that stores an event tree of the plant equipment; an event simulator that calculates the degree of unreliability corresponding to the operating parameters, the operation request information, and the operation history information, and in compliance with the event tree; a risk-cost calculation unit that calculates risk-cost by determining the aggregate product of the degrees of unreliability and restoration costs; an operating method determination unit that determines whether operating conditions are suitable by comparing the risk-cost with profit gained by continuing operation; and an operatin

Abstract: There is provided an image processing apparatus, an image display and an image processing method which are capable of preventing an unnatural change in image quality due to image processing. A luminance distribution detecting circuit detects a luminance distribution as the histogram distribution of YUV signals. A gain limiter levels out by limiting the frequency of the luminance histogram to a frequency threshold or less so as to reduce the concentration of the distribution on a specific luminance level segment. Then a ? correction circuit in the image processing section performs image processing (contrast control) on the YUV signals through the use of the luminance distribution leveled out.