Abstract: It is an object of this invention to provide a stress assessment device capable of assessing mental stress without requiring another previous knowledge or imposing a load on an observer or an employee. A stress assessment device (10) of this invention includes: a work behavior acquisition unit (101) for acquiring a work behavior time-series pattern serving as information indicating a work behavior of each employee in temporal units; an eigen-behavior time-series pattern calculation unit (102) for calculating an eigen-behavior time-series pattern serving as information indicating a standard work behavior of each employee by using the work behavior time-series pattern; and a stress state assessment unit (103) for calculating a reconstruction accuracy indicating a degree to which the work behavior time-series pattern of each employee and the eigen-behavior time-series pattern agree with each other and assessing a stress state of the employee based on the calculated reconstruction accuracy.

Abstract: A basic behavior information acquirer (11) of a task assistance device (1) acquires basic behavior information that indicates behavior of a member. A task behavior information appender (12) appends, to the basic behavior information, task behavior information that indicates a pre-set classification of the behavior. A task flow calculator (13) calculates a task flow that interrelates the task behavior information based on attribute information of the basic behavior information to which the task behavior information is appended. An expected task flow acquirer (14) acquires an expected task flow that a member is supposed to perform. A task flow difference detector (15) detects difference between the task flow and the expected task flow. An outputter (71) outputs presentation information that indicates difference between the task flow and the expected task flow.

Abstract: A change discrimination device capable of discriminating an alteration of a photographing target only from an aerial photograph or irrespectively of a difference in lighting conditions or photographing conditions at the time of taking a photo, and at minute distance intervals on a pixel basis, which receives input of a plurality of aerial image data at a new time point and an old time point, generates three-dimensional data (DSM) by subjecting the applied aerial image data to stereo-matching processing, generates ortho-image data and ortho-DSM data by normalizing the aerial image data and the generated DSM data, compares colors by using the generated ortho-image of the new time point and ortho-image of the old time point and compares heights by using the generated ortho-DSM data of the new time point and ortho-DSM data of the old time point to discriminate an alteration of a feature on the earth.

Abstract: A change discrimination device capable of discriminating an alteration of a photographing target only from an aerial photograph or irrespectively of a difference in lighting conditions or photographing conditions at the time of taking a photo, and at minute distance intervals on a pixel basis, which receives input of a plurality of aerial image data at a new time point and an old time point, generates three-dimensional data (DSM) by subjecting the applied aerial image data to stereo-matching processing, generates ortho-image data and ortho-DSM data by normalizing the aerial image data and the generated DSM data, compares colors by using the generated ortho-image of the new time point and ortho-image of the old time point and compares heights by using the generated ortho-DSM data of the new time point and ortho-DSM data of the old time point to discriminate an alteration of a feature on the earth.

Abstract: An information visualization system allows carrying out a three-dimensional walk through and hyperlink operation with little processing and allows automatically incorporating modifications into the image. A partial image generating device that forms the information visualization system generates a walk through image from three-dimensional space shape information and walk through path information, and converts same into a plurality of partial images that are partitioned at branching points. A branching information generating device generates branching information for the partial images. A hyperlink information generating device generates hyperlink information based on the visualized object information in the three-dimensional space. A partial image selection device sends a partial image switching instruction in order to switch partial images depending on the path selection of the user.

Abstract: In an in-space viewpoint control device, a viewpoint control means comprises a recommend vector setting means, a viewpoint information determination means, a viewing point order calculation means, a viewpoint pass generating means, and a relevant information visualization control means. The recommend vector setting means sets recommend vectors for the object which reflects the intentions of the content designer. The viewpoint information determination means is determines a viewing direction and a viewpoint position in the space for viewing the object on the basis of the recommend vector information. The viewing point order calculation means is responsive when a plurality of recommend vectors are being set, as it determines a rotation order for each viewing point being determined in accordance with the recommend vector. The viewpoint pass generating means calculates an appropriate shifting pass for the viewing point following the calculated rotation order, such that the viewing point is shifted smoothly.

Abstract: To provide an information visualizing system for presenting information of items to a user flexibly and automatically according to user's manipulation to control a virtual space, the information visualizing includes a target object indicator (22) for designating certain of visual object displayed in the virtual space as target objects whereof positional relation to a target indication object displayed in the virtual space satisfies a certain condition; a related-information generator (23 and 24) for generating related-information to be displayed in connection to the target objects according to relational condition designated by the user by processing information concerning the target objects; a target object revisor (26) for controlling the target object indicator to update the target objects automatically at appropriate intervals according to the situation of the virtual space; and a related-information (27) revisor for controlling the related-information generator (23 and 24) to update the related-informati