Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kenji Tabei

Shogo Tanaka

Masayuki Serizawa

Qinhe Wang

Masato Nishizawa

Ryoji Ogino

Makoto Sube

Misa Kasahara

Yoshiyuki Matsuyama

An object of the present disclosure is to display a captured image and a shake corrected image thereof on the same screen. An imaging device is provided and has a configuration provided with a correction amount calculator that calculates a correction amount for correcting image shake in a frame image, a shake corrected image generator that generates a shake corrected image in which the image shake is corrected by performing a geometrical conversion with respect to a current frame image based on the correction amount, and a synthesized image generator that generates a synthesized image in which the current frame image and the shake corrected image are disposed on the same screen.

Image capturing device and captured image display method

An image processing device for synthesizing a plurality of mutually adjacent and partially overlapping pieces of image data, includes a boundary portion selection unit which, from boundary portions of adjacent image data, selects the boundary portion for calculating an image correction value, a correction value calculator which calculates the image correction value of the boundary portion selected by the boundary portion selection unit, and an image correction unit which, in the boundary portion selected by the boundary portion selection unit, performs image correction of the boundary portion using the image correction value calculated by the correction value calculator, and which, in the boundary portion that has not been selected by the boundary portion selection unit, performs image correction using the image correction value calculated in the past.

Image processing device and image processing method

Imaging device has a configuration provided with: a primary correction amount calculator that calculates a primary correction amount for correcting image shake in a current frame image based on a physical shake amount of the imaging device; a secondary correction amount calculator that calculates a secondary correction amount for correcting a search shake amount between the current frame image and a previous frame image which is one frame image before the current frame image; a correction amount selector that selects at least one of the primary correction amount and the secondary correction amount based on at least one of an imaging condition and the primary correction amount; and an image converter that performs a geometrical conversion with respect to the current frame image based on at least one of the primary correction amount and the secondary correction amount which is selected by the correction amount selector.

Imaging device and method for correcting shake of captured image

Provided is a color camera that captures using environmental light, a monochrome camera that captures using infrared light, a signal processing unit that processes a signal of a color image output from the color camera and a signal of a monochrome image output from the monochrome camera, a storage unit that stores alignment information generated from a color image and a monochrome image captured in a state of sufficient environmental light, an alignment unit that performs an alignment based on alignment information to match positions of a subject shown in a color image and a monochrome image captured in a state of insufficient environmental light, and an image synthesis unit that acquires color information from the aligned color image and performs color conversion to colorize the monochrome image using the color information.

Moving object monitoring device, server device, and moving object monitoring system

An imaging device includes an imaging section including an imaging sensor section of a rolling shutter system, a condition designator that sets an imaging condition using first auxiliary light which is non-visible light as an imaging condition for the imaging section and an imaging condition using visible light with the first auxiliary light as non-emitted light, and alternately designates the imaging condition and a light emission condition of the first auxiliary light at a cycle of at least two frames in a time division basis, a first light emitter that emits the first auxiliary light according to the light emission condition; and an image composer that composes a non-visible light image captured by the imaging section under the imaging condition using the first auxiliary light during a first period in which the first auxiliary light is emitted and a visible light image captured by the imaging section under the imaging condition using the visible light during a second period subsequent to the first period.

Imaging device and imaging method for composing a non-visible light image and a visibile light image

An imaging device is provided with a condition designating unit which designates, by time division, imaging conditions for capturing an image, and light emission conditions for emitting auxiliary light, an imaging section which captures an image including a subject according to the imaging conditions, a light emitting unit which emits auxiliary light with respect to the subject according to the light emission conditions, and an image composer which composes a first image that is captured under a first imaging condition during a light emission period in which the auxiliary light is emitted and a second image which is captured under a second imaging condition during a non-light-emission period which is continuous to the light emission period and in which the auxiliary light is not emitted, in which quality of an image which is captured in a low illumination environment is improved.

Imaging device, imaging system, and imaging method

To increase the processing speed when median processing in the time direction is performed on color images, pixel values of each channel (R, G and B values) are extracted from multiple temporally consecutive frame images; subsequently, identifiers (index numbers) corresponding to frame images from which the pixel values are extracted are assigned to the pixel values; subsequently, a sorting process is performed on a set of pixel values of one channel (G values) to obtain an identifier assigned to a median value thereof; subsequently, a pixel value to which an identifier identical with that assigned to the median value is assigned is selected as a median value of each channel; and subsequently, a median image is generated on the basis of the median value of each channel obtained for each pixel.

An image signal processing apparatus and image signal processing method obtains a high super-resolution effect for distorted images captured by a specialized optical system, such as a 360-degree camera. A distortion-correction conversion-formula calculation section calculates a distortion correction conversion formula for correcting the nonlinear distortion. A distortion correction and interpolation processing section performs distortion correction and interpolation processing on each cropped region. An alignment conversion formula calculation section calculates an alignment conversion formula for alignment between each cropped image after distortion correction and interpolation processing is completed. A pixel coordinate conversion section rearranges pixel coordinates for each frame image before interpolation processing by using the distortion correction conversion formula and the alignment conversion formula corresponding to the cropped regions. An image synthesis section synthesizes the cropped images.

Image signal processor and method for synthesizing super-resolution images from non-linear distorted images

It is an object of the present invention to provide a video signal processing device, which can produce a digital video signal, excellent in image quality, fully utilizing effective picture elements of the imaging element, without performing a special control of an imaging element driving unit. In accordance with a contour correction gain calculated based on a compression ratio detecting signal outputted from an image compressing unit, a contour correction unitcan carry out a contour correction on a compressed image. Accordingly, an NTSC/PAL encodercan output a preferable video signal, which has been subjected to an appropriate contour correction. Moreover, a digital outputting unitoutputs an uncompressed video signal, and therefore can provide a preferable video signal without deteriorating the effective picture elements of an imaging element.

Video signal processing device and image processing device

A video signal processing apparatus that reduces the degree of occurrences of false colors and of differing line concentration by performing knee processing properly, thereby providing desirable video signals. In the apparatus, at the occasion of generating luminance signals and color differences based on the result of knee processing, it is possible to properly generate a luminance signal which is derived from the addition result of pixels which are next to each other and generate a color difference signal which is derived from a difference of the pixels next to each other, achieved by performing the knee processing while keeping the signal level ratio at least between the pixels next to each other on video signals made up of color components arranged on a pixel by pixel basis. In this way, it is possible to keep a balance in hue of a color signal even after being subjected to knee processing.

Video signal processing apparatus and video signal processing method

A video signal including illumination flicker component is integrated at each of unit areas (horizontal lines) in a frame (field) of the video signal. The integrated level at each of the unit areas at the frame and the integrated level at the corresponding unit area of an adjacent frame are averaged. Dividing is effected between results of the averaging and integrating every unit area. It is judged whether flicker exists in the video signal by frequency-analyzing results of the dividing result at the unit areas. The unit area may be plural adjacent lines where flickering are negligible. The averaging circuit may be circulation type of or FIR filter. Threshold level for judging the flicker is changed according to a shutter speed control signal. Flicker compensation may be executed by controlling shutter speed or the AGC according to flicker judging result. A still condition at a block in a frame may be detected from the integration result at plural frames. When the block is judged to be still, the flicker is judged. An ac line frequency detection is also disclosed to detect the frequency of the ac line from a video signal generated under illumination including flicker. An imaging circuit may be provided to generate the video signal therein.

ILLUMINATION FLICKER DETECTION APPARATUS, AN ILLUMINATION FLICKER COMPENSATION APPARATUS, AND AN AC LINE FREQUENCY DETECTION APPARATUS, METHODS OF DETECTING ILLUMINATION FLICKER, COMPENSATING ILLUMINATION FLICKER, AND MEASURING AC LINE FREQUENCY

An imaging circuit generates a first video signal with a first exposure interval and a second video signal with a second exposure interval substantially at the same time, the second exposure interval being shorter than the first exposure interval, the first and second video signals respectively having first and second dynamic ranges which are different but continues. The first video signal is synchronized with the second video signal. An exposure ratio between the first and second exposure intervals is detected. A gain of the second video signal is adjusted according to the exposure ratio. A combined video signal is generated from the first and second video signals according to a mixing control signal indicative of a mixing ratio between first and second video signals and levels of the first and second video signals to have an expanded dynamic range such that the first dynamic range is connected to the second dynamic range with difference in gains of the first and second video signals adjusted for linearity. An edge enhancement signal may be gain-controlled or coring-controlled according to the mixing control signal or the exposure ratio. The similar apparatus and method for color signals are also disclosed. The output dynamic range for a display is limited by a non-linear process.

Imaging apparatus with dynamic range expanded, a video camera including the same, and a method of generating a dynamic range expanded video signal

Input data is sampled discretely by a sampling circuit and a cumulative histogram of a plurality of bars is prepared by a cumulative histogram preparing circuit on the basis of the sampled input data. The cumulative histogram is latched by a latch circuit for three vertical scanning periods. Bar values of the cumulative histogram are used by an interpolation circuit to perform contrast conversion of the input data. A gamma circuit applies the gamma characteristic to the data subject to the contrast conversion. An output of the gamma circuit and the input data are inputted to an adder circuit so as to be added and averaged at a predetermined ratio.

Digital image processing apparatus with interpolation and adder circuits

A defective pixel correction circuit corrects a defective pixel in a solid imaging device such as a CCD exactly and sufficiently. A boundary detection circuit calculates magnitudes of boundaries from signals of eight peripheral pixels taken in a pixel taking-in circuit and a boundary ordering circuit compares the calculated magnitudes of the boundaries with one another to order the magnitudes of the boundaries. An interpolation circuit produces an interpolation signal in accordance with an interpolation method determined by an interpolation method determining circuit on the basis of the order of the ordered boundaries to correct the defective pixel.

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Kanagawa, Japan

Kenji Tabei