Abstract: A camera-parameter-set calculation apparatus includes a three-dimensional point group calculator that calculates a plurality of three-dimensional coordinates, based on first and second images respectively captured by first and second cameras and first and second camera parameter sets of the first and second cameras; an evaluation value calculator that determines a plurality of pixel coordinates in the second image, based on the plurality of three-dimensional coordinates and the second camera parameter set, determines a plurality of third pixel coordinates in a third image captured by a third camera, based on the plurality of three-dimensional coordinates and a third camera parameter set of the third camera, and calculates an evaluation value, based on pixel values at the plurality of second and third pixel coordinates in the second and third images; and a camera-parameter-set determiner that determines a fourth camera parameter set for the third camera, based on the evaluation value.

Abstract: Provided are: a point group obtainer that obtains three-dimensional point group data indicating three-dimensional locations of each of a plurality of three-dimensional points included in an imaging space of one or more cameras; a camera parameter calculator that (i) obtains corresponding points, for each of the plurality of three-dimensional points, in individual images captured using the one or more cameras, based on the three-dimensional point group data and an initial camera parameter of each camera, and (ii) calculates a camera parameter of each camera on the basis of the initial camera parameter of each camera and pixel values, included in the individual images, at the corresponding points; and a camera parameter outputter that outputs the calculated camera parameter of each camera.

Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.

Abstract: An imaging apparatus includes a photoelectric converter that converts light signals generated from light received by three or more pixels into electric charge signals, each of the electric charge signals corresponding to one of the three or more pixels; an electric charge holder that holds the electric charge signals; an analog selective adder that generates added electric charge signals by adding electric charge signals of certain pixels among the three or more pixels by using analog addition patterns which are rules of adding pieces of electric charge information corresponding to individual positions of the certain pixels; an analog-to-digital converter that converts the added electric charge signals into digital signals; and an addition data compressor that compresses the digital signals by using a total number of pixels for which pieces of electric charge information are added in the analog addition patterns and thereby generates compressed digital signals.

Abstract: An imaging apparatus includes an imaging optical system that forms an optical signal, an imaging device that includes a plurality of pixels and that converts the optical signal formed on the plurality of pixels into an electrical signal, a color filter that is arranged between the imaging optical system and the imaging device and that has a different optical transmittance for each of the plurality of pixels and each of a plurality of wavelength ranges, and a transmission data compression circuit that compresses the electrical signal obtained by the imaging device. The sum of products of an optical transmittance group relating to a plurality of optical transmittances of the color filter for each of the plurality of pixels in the plurality of wavelength ranges and coefficients common to the plurality of pixels is the same between the plurality of pixels.

Abstract: An image generating apparatus generates an image to be displayed on a display and includes at least one memory and a control circuit. The control circuit acquires a plurality of camera images captured by a plurality of cameras installed in a vehicle, calculates a distance between one of the cameras and a target to be projected in the camera images, detects a position of a light-transmissive object or a reflective object in the camera images, and generates an image from a point of view that is different from points of view of the plurality of camera images by using the plurality of camera images and the distance, the generated image including a predetermined image that is displayed at the position of the light-transmissive object or the reflective object.

Abstract: An imaging apparatus includes an imaging device, a first imaging optical system and a second imaging optical system that form respective input images from mutually different viewpoints onto the imaging device, and a first modulation mask and a second modulation mask that modulate the input images formed by the first imaging optical system and the second imaging optical system. The imaging device captures a superposed image composed of the two input images that have been formed by the first imaging optical system and the second imaging optical system, modulated by the first modulation mask and the second modulation mask, and optically superposed on each other, and the first modulation mask and the second modulation mask have mutually different optical transmittance distribution characteristics.

Abstract: A comment-provided video generating apparatus includes: a display priority calculating unit which calculates a display priority for each of the comments and subject regions to which the comments are provided, based on comment information indicating comments to be superimposed and displayed on a video and display positions of the comments, and user information, by calculating a higher display priority for one of the comments and the subject regions specified by user information; a comment superimposing method determining unit which determines, as a method for superimposing the comments onto a video, an order of displaying the comments and the subject regions such that a comment or a subject region having a higher display priority is displayed at a position frontward than the others, according to the display priority; and an image composing unit which superimposes the comments on the video, according to the comment superimposing method.

Abstract: An imaging apparatus includes an optical imaging system that converges light from an object; an imaging device that includes a plurality of pixels, receives the converged light, and converts the received light to an electric signal; a filter unit that is disposed between the optical imaging system and the imaging device and includes a plurality of color filters having different light transmission rate characteristics; and a transmission data compressing circuit that codes the electric signal. An overall light transmission rate characteristic of the filter unit differs randomly in different pixels of the imaging device, and the transmission data compressing circuit weights and codes the electric signal of each of the pixels by using a reciprocal of a proportion of the overall light transmission rate characteristic of the filter unit corresponding to each of the plurality of pixels of the imaging device relative to a wavelength characteristic common among the pixels.

Abstract: A comment information generating apparatus includes: a video obtaining unit which receives a video; a comment input receiving unit which receives position information of an object in the video and a comment that is displayed with the object and is caused to track the object starting from a predetermined timing; a target time determining unit which determines, to be a target value indicating a time length, a target time during which the comment is displayed, based on the comment; an object motion determining unit which determines, for the object, a motion trajectory having a time length substantially equal to the target time and along which the comment is caused to track the object; a comment information generating unit which generates comment information including the comment and the motion trajectory of the object; and an output unit which outputs the comment information.

Abstract: A comment-provided video generating apparatus includes: a display priority calculating unit which calculates a display priority for each of the comments and subject regions to which the comments are provided, based on comment information indicating comments to be superimposed and displayed on a video and display positions of the comments, and user information, by calculating a higher display priority for one of the comments and the subject regions specified by user information; a comment superimposing method determining unit which determines, as a method for superimposing the comments onto a video, an order of displaying the comments and the subject regions such that a comment or a subject region having a higher display priority is displayed at a position frontward than the others, according to the display priority; and an image composing unit which superimposes the comments on the video, according to the comment superimposing method.

Abstract: An imaging apparatus includes an image-forming optical system that forms an image by using optical signals; an imaging device that includes a plurality of pixels, receives, with the plurality of pixels, the optical signals used to form the image, and converts the optical signals into electric signals; and a color filter that is located between the image-forming optical system and the imaging device and has a light transmittance which differs according to positions on the color filter corresponding to the plurality of pixels and according to a plurality of wavelength bands.

Abstract: A comment information generating apparatus includes: a video obtaining unit which receives a video; a comment input receiving unit which receives position information of an object in the video and a comment that is displayed with the object and is caused to track the object starting from a predetermined timing; a target time determining unit which determines, to be a target value indicating a time length, a target time during which the comment is displayed, based on the comment; an object motion determining unit which determines, for the object, a motion trajectory having a time length substantially equal to the target time and along which the comment is caused to track the object; a comment information generating unit which generates comment information including the comment and the motion trajectory of the object; and an output unit which outputs the comment information.

Abstract: A comment information generation device includes: a video input section, to which a video is input; an information input section, to which positional information is input to display a comment to track an object in the video; an initial trajectory acquisition section that acquires an initial trajectory that is a trajectory of the object corresponding to the positional information; a trajectory extending section that acquires an extended trajectory by acquiring a following trajectory that is a trajectory having a starting point after an ending point of the initial trajectory, collecting a first comment assigned in a vicinity of the initial trajectory and a second comment assigned in a vicinity of the following trajectory, and connecting the following trajectory to the initial trajectory on a basis of the first comment and the second comment; and an output section that outputs the extended trajectory as comment information.

Abstract: An imaging system includes an encoding apparatus that performs a multiple sampling process on charge signals in a plurality of wavelength bands and encodes image information and a decoding apparatus that decodes the image information. In the multiple sampling process, the charge signals of pixels in a pixel group having a predetermined arrangement pattern are analog-summed and the sum is converted into a new digital signal. The encoding apparatus performs the multiple sampling process on charge signals in at least two of the wavelength bands and outputs a digital image signal in each of the wavelength band. The at least two pixel groups have different arrangement patterns, and combinations of the arrangement patterns for all the wavelength bands differ from one another. The decoding apparatus generates a reconstructed image from the digital image signals in the wavelength bands using multiple sampling information and outputs the image.

Abstract: An imaging apparatus includes a photoelectric converter that converts light signals generated from light received by three or more pixels into electric charge signals, each of the electric charge signals corresponding to one of the three or more pixels; an electric charge holder that holds the electric charge signals; an analog selective adder that generates added electric charge signals by adding electric charge signals of certain pixels among the three or more pixels by using analog addition patterns which are rules of adding pieces of electric charge information corresponding to individual positions of the certain pixels; an analog-to-digital converter that converts the added electric charge signals into digital signals; and an addition data compressor that compresses the digital signals by using a total number of pixels for which pieces of electric charge information are added in the analog addition patterns and thereby generates compressed digital signals.

Abstract: A polarization image sensor includes: photodiodes arranged on an image capturing plane; a color mosaic filter in which color filters in multiple different colors are arranged to face the photodiodes; an optical low-pass filter which covers the color mosaic filter; and polarization optical elements located closer to a light source than the optical low-pass filter is. Each polarization optical element covers an associated one of the photodiodes and makes light which is polarized in a predetermined direction in a plane that is parallel to the image capturing plane incident onto the optical low-pass filter. The color filters are arranged so that light that has passed through polarization optical elements is transmitted through an associated one of the color filters in a single color. Each color filter covers multiple photodiodes.

Abstract: A vehicle-operation assist includes a circumferential-state imager for imaging a circumferential state of a vehicle with a camera and generating a circumferential-state image; a synthetic-image generator for generating a synthetic image by superimposing on the circumferential-state image, an assumed-movement pattern of the vehicle performing a predetermined series of driving operations; and a display for displaying the synthetic image. The circumferential-state imager has at least one camera and a camera parameter table for storing characteristics of the camera and generating the circumferential-state image on the basis of the camera characteristics.

Abstract: A video generating apparatus includes: a segmentation unit dividing each of pictures included in an input video sequence into multiple regions as divided regions, and generating partial video sequences each having a set of the divided regions associated with one another between the pictures; a removal region determining unit determining, as a removal region, a region of at least one of the objects included in the input video sequence; an occluded region completing unit generating a completed video sequence by completing an image in an occluded region for each of the partial video sequences, thereby completing the partial video sequences and by superimposing the completed partial video sequences over one another, the occluded region being a region of an other object occluded in the removal region by the at least one object; and a video outputting unit outputting the completed video sequence.

Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.