Abstract: A measurement tool includes a first member and a measurement member. The first member has a surface including a chart to be used for calibration of a stereo camera. The measurement member is arranged on the surface of the first member. The measurement member includes a light source and a second member. The light source is configured to emit light with a uniform intensity regardless of a position on the surface. The second member is configured to cover the light source and radiate the light from a plurality of first holes and a plurality of second holes having a size larger than the first hole.

Abstract: Provided is a pharmaceutical preparation composition comprising a polymerized camptothecin derivative which is obtained by bonding a camptothecin derivative to a polymer carrier, and has nanoparticle-forming properties of associating in an aqueous solution, the pharmaceutical preparation composition having enhanced preparation stability. Particularly, a pharmaceutical preparation maintaining nanoparticle-forming properties, which are an important factor, and having an excellent storage stability is provided. Disclosed is a pharmaceutical preparation comprising a block copolymer in which a polyethylene glycol segment is linked to a polyglutamic acid segment containing a glutamic acid unit having a camptothecin derivative bonded thereto, the pharmaceutical preparation capable of forming associates in an aqueous solution. When the pharmaceutical preparation is made into an aqueous solution containing the camptothecin derivative at a concentration of 1 mg/mL, the pH of the aqueous solution is 2.4 to 7.

Abstract: A calibration method is for a photographic device that photographs an object through a transparent body. The calibration method includes: acquiring a first photographic image by photographing the object without interposing the transparent body; acquiring a second photographic image by photographing the object through the transparent body; calculating an absolute positional deviation that indicates a deviation in coordinates of an image of the object due to the transparent body based on coordinates of an image of the object on the first photographic image and coordinates of an image of the object on the second photographic image; calculating a correction parameter for calibrating the absolute positional deviation; and storing the correction parameter in the photographic device.

Abstract: A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.

Abstract: A range-finding system includes two imaging devices to capture multiple images from two different viewpoints and a parallax calculator to calculate parallax based on the multiple images captured by the two imaging devices. The parallax calculator includes an estimation unit to estimate a correction value based on the amount of image deviation in a lateral direction corresponding to pixel position in the images captured by the two imaging devices and a correction unit to correct a pre-correction parallax or an image based on the correction value estimated by the estimation unit.

Abstract: A range-finding system includes two imaging devices to capture multiple images from two different viewpoints and a parallax calculator to calculate parallax based on the multiple images captured by the two imaging devices. The parallax calculator includes an estimation unit to estimate a correction value based on the amount of image deviation in a lateral direction corresponding to pixel position in the images captured by the two imaging devices and a correction unit to correct a pre-correction parallax or an image based on the correction value estimated by the estimation unit.

Abstract: An object identifying apparatus is disclosed, including: an imaging part, and an object identification processing part. The imaging part receives two polarized lights having a different polarization direction included in light reflected from the object existing in the image pickup area and captures two polarization images. The object identification processing part conducts an identification process for identifying the object existing at a place corresponding to each of multiple process areas in the image pickup area by using the two polarization images captured by the imaging part.

Abstract: A calibration apparatus is provided. The calibration apparatus receives inputs of two reference images and plural items of parallax data; searches for plural feature points common to these two reference images; calculates parallaxes and parallax changing amounts, based on the parallax data related to the respective feature points in these two reference images, for each of the searched feature points; and calculates a correction value for the parameter based on the calculated parallaxes and parallax changing amounts. The two reference images are captured by one of the imaging devices at two locations, and the parallax data is calculated using these two reference images and two corresponding images based on positions of plural feature points common to the reference image and the corresponding image for each pair on a location basis. The two corresponding images are captured by another of the imaging devices at these two locations.

Abstract: A stereo camera device detecting a distance to a subject includes two cameras and a calculation unit that calculates a distance to the subject based on the images acquired by the two cameras. The calculation unit includes an image processing unit that searches for corresponding points of the images acquired by the two cameras and calculates two parallaxes based on differences in positional coordinates of the corresponding points on the images, an offset value calculation unit that calculates parallax offset values across the images based on the two parallaxes calculated by the image processing unit at least at two time points, and a statistical processing unit that performs a statistical analysis on a distribution of the parallax offset values and determines an optimum value of the parallax offset values, the optimum value being used as a correction parameter.

Abstract: A calibration device for calibrating ranges obtained by a range-finding system includes an image acquisition unit to receive inputs of two reference images captured by a reference imaging device at two locations and multiple items of parallax data from the parallax calculator. The calibration device includes a feature point search unit to search for multiple reference-feature points common to the two reference images, and a coordinate converter to convert coordinates of the two items of parallax data based on the multiple feature points and the multiple corresponding points. The calibration device includes a correction value calculator to calculate a correction value to correct the range measured by the range finding system, based on a converted parallax from the coordinate converter.

Abstract: An object recognition apparatus includes a first object detection unit configured to detect an object based on an image captured by an imaging unit, and output first information including a distance and a direction to the object; a second object detection unit configured to emit light, detect the object based on reflected light, and output second information including a distance and a direction to the object; an output unit configured to output at least one of the first information and the second information; a disappearance detection unit configured to detect disappearance upon when the first object detection unit becomes unable to detect the object; and an emission control unit configured to control the second object detection unit to emit light in an object direction based on the first information before detecting the disappearance. Upon the disappearance detection unit detecting the disappearance, the output unit starts outputting the second information.

Abstract: A disclosed transparent body detection system includes an image acquisition unit acquiring a vertical polarization image and a horizontal polarization image by acquiring an image of a first region, the image including a transparent body having characteristics in which a polarization direction of transmission light changes; a placing table on which the transparent body is to be placed; a polarization filter disposed opposite to the image acquisition unit across the placing table and at a position including a second region, an image of the second region including at least the transparent body in the first region and being acquired; and an image processing apparatus detecting the transparent body based on distribution of vertical/lateral polarization degree of a vertical/lateral polarization degree image based on the vertical polarization image and the horizontal polarization image.

Abstract: A stereo camera apparatus for obtaining distance information of an object includes a camera unit that includes a left image sensor and a right image sensor respectively obtaining a left-side image and a right-side image, each being composed of a frame including plural pixels of plural rows and plural columns, the left image sensor and the right image sensor sequentially exposing the pixels of the rows from upper to lower in the frames, respectively; a shift amount detection unit that detects a relative positional shift amount in the vertical direction between a left-side image and a right-side image; and a timing control unit that changes the starting time of exposing the frame by the left image sensor or by the right image sensor based on the positional shift amount in the vertical direction detected by the shift amount detection unit.

Abstract: An imaging device includes a lens array including multiple lenses facing a subject; an image sensor obtaining a compound-eye image including single-eye images of the subject formed by the lenses; and a computing unit processing the compound-eye image obtained by the image sensor. The lenses have different radii of curvature and substantially the same back focal length, and the computing unit extracts an in-focus image from the compound-eye image.

Abstract: A stereo camera apparatus includes a first image capturing unit having first and second lens units, a first light synthesis unit, a first area-divided filter, and a first image capturing element. The first light synthesis unit and the first area-divided filter guide S-polarized and P-polarized light components to the first image capturing element. The second image capturing unit includes third and fourth lens units, a second light synthesis unit, a second area-divided filter, and a second image capturing element. The second light synthesis unit and the second area-divided filter guide S-polarized and P-polarized light components to the second image capturing element. The control unit includes first and second controllers to compute three-dimensional data of object using the S-polarized and P-polarized light component images, respectively.

Abstract: A device includes a display monitor configured to display on a screen of the display monitor at least one of a current image and a preceding image taken by an optical unit, a storage unit configured to store the preceding image, and a control unit configured to display a part of the preceding image on the screen when the current image is displayed on the screen, the displayed part of the preceding image indicating a positional relationship between the current image and the preceding image. The current image is taken when the displayed part of the preceding image substantially overlaps a corresponding portion of the current image such that the current image and the preceding image can be processed to form a panoramic image.

Abstract: An image taking unit including a lens array, a light shielding member, and an image taking unit that acquires a compound eye image of a vein pattern of a living body held at a lens array. A shift estimation unit estimates an image shift amount between ommatidium images of the compound eye image. An image restructuring unit restructures a single image from the compound eye image by using the image shift amount. In at least one embodiment, a size correction unit corrects the size of the restructured single image with a magnification ratio determined by the estimated image shift amount and an image shift amount stored in a registration pattern storage unit so as to correspond to a registration pattern. As a result, it is possible to perform personal authentication while compensating influences due to fluctuations in a subject distance.

Abstract: An image pickup apparatus comprises a lens array with a plurality of lenses, a part of which lenses makes one or more stereo lens pairs; an image pickup device for taking a multifaceted compound-eye image consisting of a set of monocular images formed by the plural lenses; and a computing unit for computing range imagery from one or more pairs of the monocular images formed by said one or more stereo lens pairs. The computing unit includes imaging position determination means for determining from the monocular images an image pickup position of each of one or more subjects whose relative positional relationships with respect to the image pickup apparatus are known by dividing the multifaceted compound-eye image into the monocular images, and image distortion parameter determination means for determining an image distortion parameter based upon a determination result of the imaging position determination means.

Abstract: A calibration device for calibrating ranges obtained by a range-finding system , includes an image acquisition unit to receive inputs of two reference images captured by a reference imaging device at two locations and multiple items of parallax data from the parallax calculator, the parallax data being calculated based on multiple feature points in the reference images and multiple corresponding points in the comparison images correlated to the feature points in the reference images; a feature point search unit to search for multiple reference-feature points common to the two reference images; a coordinate converter to convert coordinates of the two items of parallax data based on the multiple feature points and the multiple corresponding points, for each of the reference-feature points between the reference images; and a correction value calculator to calculate a correction value to correct the range measured by the range finding system, based on a converted parallax from the coordinate converter.

Abstract: A range-finding system includes two imaging devices to capture multiple images from two different viewpoints and a parallax calculator to calculate parallax based on the multiple images captured by the two imaging devices. The parallax calculator includes an estimation unit to estimate a correction value based on the amount of image deviation in a lateral direction corresponding to pixel position in the images captured by the two imaging devices and a correction unit to correct a pre-correction parallax or an image based on the correction value estimated by the estimation unit.