摘要:
A navigation apparatus comprises a navigation-related information generating section and a display section. The navigation-related information generating section measures the position and orientation of an object and a target in a three-dimensional space and generate navigation-related information to be used for navigating the object toward the target. The display section displays the navigation-related information generated by the navigation-related information generating section in any of different modes depending on the relationship of the position and orientation of the object and that of the target. A surgical operation image acquisition/display apparatus comprises an observation section, an image display section and a specifying section. The observation section includes a plurality of observation sections whose position and orientation is modifiable. The image display section is adapted to alternatively display any of the images obtained by the observation sections or synthetically combine and display the combined images. The specifying section specifies the image to be displayed to the image display section according to the position and orientation of the observation section.
摘要:
A three-dimensional position and orientation sensing apparatus including: an image input section which inputs an image acquired by an image acquisition apparatus and showing at least three markers having color or geometric characteristics as one image, three-dimensional positional information of the markers with respect to an object to be measured being known in advance; a region extracting section which extracts a region corresponding to each marker in the image; a marker identifying section which identifies the individual markers based on the color or geometric characteristics of the markers in the extracted regions; and a position and orientation calculating section which calculates the three-dimensional position and orientation of the object to be measured with respect to the image acquisition apparatus, by using positions of the identified markers in the image input to the image input section, and the positional information of the markers with respect to the object to be measured.
摘要:
A navigation apparatus comprises a navigation-related information generating section and a display section. The navigation-related information generating section measures the position and orientation of an object and a target in a three-dimensional space and generate navigation-related information to be used for navigating the object toward the target. The display section displays the navigation-related information generated by the navigation-related information generating section in any of different modes depending on the relationship of the position and orientation of the object and that of the target. A surgical operation image acquisition/display apparatus comprises an observation section, an image display section and a specifying section. The observation section includes a plurality of observation sections whose position and orientation is modifiable. The image display section is adapted to alternatively display any of the images obtained by the observation sections or synthetically combine and display the combined images. The specifying section specifies the image to be displayed to the image display section according to the position and orientation of the observation section.
摘要:
A reference frame adapted to be fitted to a subject of medical treatment and provided with markers for determining the position or the orientation of the subject comprises fitting section for fitting the reference frame with the subject at least three spots (tops of the left and right ears and the nasal projection) along the undulations of the surface thereof and three or more than three markers detectable at least ether in an X-ray image or in an MRI image of the reference frame, the markers being to be arranged at predetermined positions not connectable by a straight line. A surgical operation navigating system determines the coordinates of the markers in a coordinate system defined for the image taken for the purpose of medical examination of the subject who is carrying the reference frame on the basis of the obtained image. Then the corresponding relationship is established between the coordinate system for the image for examination and the coordinate system for the real space containing the markers on the basis of the result of the operation of determining the coordinates of the markers in the coordinate system for the image for examination and the coordinates of the markers in the coordinate system for the real space.
摘要:
A feature quantity calculation device to calculate a feature quantity for a 3-D object from 3-D object data contained in the 3-D object includes a 3-D object data input module to input the 3-D object data, a 3-D object data analysis module to analyze the input 3-D object data, a volume data conversion module to convert the analyzed 3-D object data to volume data, and a feature quantity calculation module to calculate a feature quantity from the converted volume data.
摘要:
A similar image retrieving means has a region of interest setting portion, a feature quantity calculation portion, a similarity calculation portion and an image selection portion. A part of the three-dimensional image of the retrieval object is set as a region of interest. The feature quantity calculation portion calculates the quantity of the region of interest. The similarity calculation portion calculates the similarity between the retrieval object and the three-dimensional image data stored in advance by comparing the feature quantity of the region of interest of the retrieval object which quantity is calculated with the feature quantity calculation means with the three-dimensional image data where the region of interest is set which is stored in advance in the image database, and the feature quantity of this region of interest is calculated. The image selection portion selects similar images in an order of decreasing similarity from the image database.
摘要:
An image pickup apparatus is provided with an imaging optical system (imaging lens), an image sensor for picking up a subject image formed by the imaging optical system, and a view division optical system (first mirror) which divides a view picked up by the image sensor into an environment imaging side view and an eyeball imaging side view.
摘要:
The image generation device includes distance calculation means for calculating a distance between a space model and an imaging device arrangement object model which is a model such as a vehicle having a camera mounted, according to viewpoint conversion image data generated by viewpoint conversion means, captured image data representing captured image, a space model, or mapped space data. When displaying an image viewed from an arbitrary virtual viewpoint in the 3D space, the image display format is changed according to the distance calculated by the distance calculation means. When displaying a monitoring object such as a vicinity of a vehicle, a shop, a house or a city as an image viewed from an arbitrary virtual viewpoint in the 3D space, it is possible to display the monitoring object in such a manner that the relationship between the vehicle and the image of the monitoring object can be understood intuitionally.
摘要:
There is provided a particle-group movement analysis system which is capable of detecting from a plurality of objects in a form of a particle, an object in the form of a particle which moves in a manner different from the other objects in the form of a particle, a particle-group movement analysis method, and a program. The particle-group movement analysis system includes an image capture section (101) which captures a time-series image of the plurality of objects in the form of a particle, a characteristic information computing section (104) which calculates an amount of a particle Pn in each small area R(i, j) corresponding to each pixel in the time-series image which is captured, a time-change detecting section (105) which detects a divergence of the number of particles, and a factor specifying section (106) which specifies an area which includes a particle Pab which has become a cause of a divergence change, or an abnormal area which is an area near the particle Pab which has become the cause of the divergence change.
摘要:
A distance measuring apparatus includes a detecting unit which detects a distance to an object located in a predetermined detection range; an imaging unit which generates an image signal group corresponding to a predetermined imaging field; a calculating unit which calculates the distance to the object located in the imaging field based on the image signal group; and an interpolating unit which either interpolates a detection result by the detecting unit by using a calculation result by the calculating unit, or interpolates the calculation result by the calculating unit by using the detection result by the detecting unit.