Abstract: An imaging apparatus includes: an imaging unit; a focal range control unit configured to cause the imaging unit to capture a first image and a second image which have mutually different focal ranges, changing a focal position of the imaging unit; a reference image generation unit configured to generate, using the first image and the second image, a reference image to be used as a blur standard; and a distance measurement unit configured to measure a distance to the subject based on a difference in blur degrees between the reference image and each of the first image and the second image. The focal ranges of the first image and the second image are independent of each other, and an out-of-focus space is provided between the focal ranges.

Abstract: An optical system includes: a main mirror (11) having a shape of a portion of a convex paraboloid which includes an opening in a center and is rotationally symmetric; a second-reflection mirror (12) which further reflects light reflected by the main mirror (11), and has a shape of a portion of a concave paraboloid which is rotationally symmetric; at least one lens which forms an image of the light reflected by the second-reflection mirror (12); and a lens barrel (14) holding the at least one lens, and a position of a front principal point of the at least one lens coincides with a focal position of the second-reflection mirror (12), and an optical axis of the at least one lens is tilted with respect to a rotational axis of each of the convex paraboloid and the concave paraboloid.

Abstract: An imaging apparatus wherein a captured image is subjected to a rotational transform so as to correct the inclination of one or more subjects in the captured image. The imaging apparatus defines, with reference to a physical inclination detected by a sensor, an angle range in which the image is to be processed. The imaging apparatus then processes the captured image and detects lines therein and inclination angles thereof. The imaging apparatus then creates histograms indicative of frequency distributions of the inclination angles of those lines, and selects, in the created histograms, an inclination angle having a frequency that satisfies a predetermined criterion, as a rotational angle to be used for the rotational transform.

Abstract: A wearable camera that is an imaging device includes a sensing unit that senses motion of a camera, and a prediction unit that calculates a pixel shift distance (d) between frames based on the results of the sensing. The prediction unit obtains a position (p1?) by moving a feature point (p1) extracted from the previous frame image by the pixel shift distance (d), and the setting unit sets a window (w4) having a position (p1?) as the center in the current frame image (Ft+1). A search unit searches the window (w4) and detects a feature point (q1) corresponding to the feature point (p1).

Abstract: To provide an image processing device that calculates a parameter used for correcting large video jitter with high accuracy even when the accuracy of a sensor for measuring a movement of a photographing device is low. The image processing device includes: a constraint condition generating unit (130) that generates a constraint condition using sensor information such that a parameter value falls within a range; and a parameter calculating unit (140) that calculates the parameter according to the constraint condition.

Abstract: A plasma display panel has a sealed part where peripheral portions of a front plate and a rear plate are sealed to each other with a sealing member. The sealed part includes bead which regulates any gap formed between the peripheral portions of the front plate and the rear plate. A dielectric layer is formed as far as location of the bead but an insulator layer is formed short of the location of the bead in the sealed part on the side of a direction where display electrodes extend. The insulator layer is formed as far as the location of the bead but the dielectric layer is formed short of the location of the bead in the sealed part on the side of a direction where data electrodes extend. The bead has a diameter larger than a thickness of the dielectric layer and a height of barrier ribs summed with each other and at most twice as large as the thickness of the dielectric layer and the height of the barrier ribs summed with each other.

Abstract: An imaging apparatus includes: an imaging unit; a focal range control unit configured to cause the imaging unit to capture a first image and a second image which have mutually different focal ranges, changing a focal position of the imaging unit; a reference image generation unit configured to generate, using the first image and the second image, a reference image to be used as a blur standard; and a distance measurement unit configured to measure a distance to the subject based on a difference in blur degrees between the reference image and each of the first image and the second image. The focal ranges of the first image and the second image are independent of each other, and an out-of-focus space is provided between the focal ranges.

Abstract: A distance measurement apparatus includes: an imaging device which captures an image; a diffractive optical device which diffracts a subject image; an optical system which forms, on the imaging device, the image from the subject image diffracted by the diffractive optical device; and a distance measurement unit which measures a distance to a subject using the image captured by the imaging device. The distance measurement unit measures the distance to the subject based on an interval between diffraction figures of the subject image which are created by the diffractive optical device. The interval is on the image captured by the imaging device.

Abstract: The present invention provides an imaging apparatus which generates, based on a captured image, a depth map of an object with a high degree of precision.

Abstract: Disclosed herein is a novel method of measuring telomere length comprising determining the DNA content (Dx) of a sample, determining the telomeric content (T) of a sample, and determining the value of T/Dx.

Abstract: A picture classifying unit in a video scene classifying device classifies obtained plural pictures into plural clusters based on a classification index which indicates a feature of the pictures. A cluster selecting unit selects at least one cluster among the classified clusters. An index generating unit assigns the index to at least one picture among the pictures which constitute the selected cluster.

Abstract: An image processing apparatus (10) includes: an imaging unit (11) which captures an image; a focal range control unit (12) which changes a focal position and a depth of field of a captured image by controlling an imaging device or a focus lens in the imaging unit (11); and a distance measurement unit (14) which measures a distance to a subject, from a degree of blur in each of n images (where n?2) captured by the imaging unit (11) controlled by the focal range control unit (12) and having focal ranges different from each other.

Abstract: An image processing apparatus (10) includes: an imaging device (20); an optical system (22); and a distance determining unit (16) determining an object distance between the optical system and the object based on a size of a blur developed on the image. The optical system (22) has a characteristic which simultaneously satisfies both of conditions that (i) variation in magnification is equal to or smaller than the predetermined number of pixels in the case where a focused point is set farthest from and closest to the optical system (22) in a range of the distance of the object determined by the distance determining unit (16) and (ii) variation in a PSF due to an image height of the optical system (22) is equal to or smaller than a predetermined degree so as not to affect the determination of the distance of the object by the distance determining unit (16).

Abstract: When an image is captured by an imaging apparatus that is not on the premise that the image is captured, it is not possible to estimate objects included in the image in order to correct a tilt of the captured image. Therefore, a tilt angle of the captured image can be estimated based on areas not suitable for estimating the tilt angle of the captured image, and the captured image is corrected based on an incorrectly estimated tilt angle, which deteriorates the quality of the captured image. An image processing device is provided to divides the captured image into a plurality of areas, determine a directional characteristic shown by a texture of each of the divided areas, and estimate the tilt angle of the captured image based on one or more areas whose textures have the unidirectional characteristic to correct the captured image using the estimated tilt angle.

Abstract: A wearable camera that is an imaging device includes a sensing unit that senses motion of a camera, and a prediction unit that calculates a pixel shift distance (d) between frames based on the results of the sensing. The prediction unit obtains a position (p1?) by moving a feature point (p1) extracted from the previous frame image by the pixel shift distance (d), and the setting unit sets a window (w4) having a position (p1?) as the center in the current frame image (Ft+1). A search unit searches the window (w4) and detects a feature point (q1) corresponding to the feature point (p1).

Abstract: An optical system includes: a main mirror (11) having a shape of a portion of a convex paraboloid which includes an opening in a center and is rotationally symmetric; a second-reflection mirror (12) which further reflects light reflected by the main mirror (11), and has a shape of a portion of a concave paraboloid which is rotationally symmetric; at least one lens which forms an image of the light reflected by the second-reflection mirror (12); and a lens barrel (14) holding the at least one lens, and a position of a front principal point of the at least one lens coincides with a focal position of the second-reflection mirror (12), and an optical axis of the at least one lens is tilted with respect to a rotational axis of each of the convex paraboloid and the concave paraboloid.

Abstract: Provided are a non-reciprocal unit used for a polarization dependent type optical isolator and a polarization dependent type optical isolator that are simple in structure, can prevent damages due to light and heat and can obtain a high extinction ratio. In a polarization dependent type optical isolator, an input side lens (first lens) (5), a first birefringence unit (7), a Faraday rotator (9), a second birefringence unit (11) and an output side lens (second lens) (15) are arranged from the input side to the output side. The polarization dependent type optical isolator (1) is connected with optical fibers (3, 17) on the input and output sides, respectively, wherein a wedge angle (?1) of the first birefringence unit (7) is different from a wedge angle (?2) of the second birefringence unit (11).

Abstract: To provide an image processing device that calculates a parameter used for correcting large video jitter with high accuracy even when the accuracy of a sensor for measuring a movement of a photographing device is low. The image processing device includes: a constraint condition generating unit (130) that generates a constraint condition using sensor information such that a parameter value falls within a range; and a parameter calculating unit (140) that calculates the parameter according to the constraint condition.