Fujitsu Corporation

Norihiro Kakuko

Takeshi Otani

Shanshan Yu

Teruyuki Sato

A method includes: executing acquisition processing that includes acquiring an image frame captured by an imaging apparatus; executing a determination processing that includes determining whether a head region is included in the acquired image frame; executing calculation processing that includes calculating a first amount of change in time series of the head region by using a position of the head region in the image frame and a position of the head region in another image frame following the image frame; executing determination processing that includes determining a threshold to be compared with the first amount of change based on a frequency distribution of amounts of change in time series of the head region in a past image frame group prior to the acquired image frame; and executing evaluation processing that includes evaluating the first amount of change by comparing the determined threshold and the first amount of change.

Image processing method, image processing apparatus, and non-transitory computer-readable storage medium storing program for image processing having gesture recognition

An apparatus for motion determination includes: a memory; and a processor coupled to the memory, the processor being configured to (a) execute a specifying process that includes specifying an orientation of a head portion of a subject, (b) execute a calculation process that includes calculating a trajectory of a position of the head portion of the subject in a vertical direction and a trajectory of the position of the head portion of the subject in a transverse direction in a predetermined time range, and (c) execute a determination process that includes when the calculated trajectory in the vertical direction and the calculated trajectory in the transverse direction satisfy a determination condition for the specified orientation of the head portion, determining that there is a predetermined motion mapped to a motion of the head portion of the subject in the vertical direction.

Motion determining apparatus, method for motion determination, and non-transitory computer-readable storage medium for storing program

A method for estimating body orientation includes: executing extraction processing for extracting a person region from images; executing an identification processing for identifying a left site and a right site in the person region; executing calculation processing for calculating a left moving amount and a right moving amount; and executing estimation processing for estimating body orientation in the person region based on a first difference and relation information, the first difference being a difference between the left moving amount and the right moving amount, the relation information including first and second relation information, the first relation information indicating a relationship between the first difference and a change amount when the left moving amount is larger than the right moving amount, and the second relation information indicating a relationship between the first difference and the change amount when the right moving amount is larger than the left moving amount.

Method for estimating body orientation

An information processing apparatus includes a memory, and a processor coupled to the memory and configured to obtain a plurality of images of a subject captured at different timings, detect a feature point of the subject from each of the plurality of images, identify a movement locus of the feature point between the plurality of images, identify a center position of a circle having the movement locus as an arc, and determine a posture of the subject based on the identified center position.

Information processing apparatus, method, and non-transitory computer-readable storage medium

An information processing apparatus including a memory, and a processor coupled to the memory and the processor configured to execute a process, the process including extracting a moving object area corresponding to a moving object included in a plurality of frames in a moving image based on a result of a comparison between the plurality of frames with each other, tracking a position of the moving object area among the plurality of frames, determining, for each of the plurality of frames, an image area excluding the moving object area to be a background area whose position moves more than a defined period of time, and updating a background image of the moving image based on a result of the determining.

Information processing apparatus, background image update method, and non-transitory computer-readable storage medium

A method includes extracting a plurality of feature points from a first image and a second image of an image-capture target, acquiring, from the second image, for each of the plurality of feature points in the first image, a set of points having a correlation with the feature point, identifying, for each of the plurality of feature points in the second image, a position of a center of gravity of the set of points, and determining an amount of movement of the image-capture target by performing weighting processing, the weighting processing being performed on each of amounts of displacements and a number of points in the set of points acquired for each of the plurality of feature points, each of the amounts of displacements being a displacement from a position of each of the plurality of feature points in the first image to the position of the center of gravity.

Method of determining an amount, non-transitory computer-readable storage medium and information processing apparatus

A display displays a composite image including element pixels. Each element pixel is formed by arranging, in a direction, pixels respectively extracted from images having different viewpoints. A first optical element includes lenses arrayed in the direction to correspond to the element pixels and emits in parallel light rays emitted from pixels respectively included in the element pixels, for a particular image. A second optical element condenses the light rays. An output circuit selects a pixel of the particular image which is included in a particular element pixel and outputs its pixel value to the display. At this time, a pixel more distant from an optical axis of the second optical element along the direction in the particular image is selected as a distance between the first and second optical elements becomes smaller than a focal length of the second optical element.

Image display apparatus and image display method

A device disposed on a display surface side of an apparatus having pixels arranged in a matrix, each pixel having sub-pixels arranged in a first axis direction includes: a light-blocking unit disposed on the surface, the light-blocking unit including M&#xd7;N apertures for each pixel; a first lens disposed on the side, of the light-blocking unit, opposite to the surface, the first lens including first lens part(s) arranged in a stripe pattern within a width of each pixel in the second axis direction; and a second lens disposed on the side, of the first lens, opposite to the light-blocking unit or between the light-blocking unit and the first lens, the second lens including second lens parts arranged in a stripe pattern within the width of each pixel in the first axis direction at a pitch by dividing a pitch of the first lens part in the second axis direction.

Optical device

A stereoscopic image generating device includes: a correction parameter calculating unit that calculates correction parameters based on a plurality of pairs of feature points corresponding to the same points on the object, from the first image and a second image photographing the object; a correction error calculating unit that, for each pair of feature points, corrects the position of the feature point on at least one image, using the correction parameters, and calculates the amount of correction error; a maldistribution degree calculating unit that finds the degree of maldistribution of feature points; a threshold value determining unit that determines a threshold value such that the threshold value is smaller when the degree of maldistribution increases; and a correction unit that, when the amount of correction error is equal to or lower than the threshold value, corrects the position of the object in the images using the correction parameters.

Stereoscopic image generating device and stereoscopic image generating method

A stereoscopic image generating device includes: a brightness calculation unit that, on an image that is photographed using a stereo adapter, obtains the brightness representative value of the first area where neither of two beams from the object is incident; a threshold value determining unit that obtains a threshold value based on the brightness representative value; and an object area extracting unit that extracts two sets of pixels having brightness value higher than the threshold value on the image, as a second area where one of the two beams is incident and a third area where the another of the two beams is incident, and produces a stereoscopic image by a pair of a first partial image that is cut out from the second area, and a second partial image that is cut out from the third area.

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Kawasaki, Japan

Norihiro Kakuko