Abstract: An image processing apparatus includes a pattern generating unit that generates a plurality of two-dimensional array patterns, a radiating unit that emits light in each of the two-dimensional array patterns generated by the pattern generating unit to irradiate an object with the light, a spectrum measuring unit that measures the spectrum of the light, which is emitted from the radiating unit and is reflected by the object, in a plurality of frequency bands to generate spectral data, a transmission-rate calculating unit that calculates the transmission rate of each frequency band on the basis of the two-dimensional array patterns and spectral data blocks associated with the respective two-dimensional array patterns, and an image generating unit that generates an image in a desired frequency band on the basis of the transmission rates calculated by the transmission-rate calculating unit.

Abstract: An image processing apparatus for finding reflectivity based on a BRDF model expressing a ratio of reflection of light incident upon one point of a surface of an object to be drawn at the object surface, the image processing apparatus having an operation unit for calculating the reflectivity based on a BRDF model calculated by a quadratic-form matrix expression including a vector comprised of a light source direction vector, a viewpoint direction vector, and a normal direction vector and a matrix determining the characteristics of the BRDF model, thereby able to achieve both a variety of expression power and good operation efficiency when mounted in a programmable pixel shader and further having enough of a compactness to easily cope with a shift-variant BRDF, and a method of the same.

Abstract: A three-dimensional model processing apparatus is provided. The three-dimensional model processing apparatus can more really carry out a processing change of shape, color, and the like with respect to a three-dimensional object being displayed on a display by allowing an operator to operate an object tool in which a position change and an orientation change can be made and an editing tool in which relative distance with respect to the object tool can be changed to relatively move both tools such that the relative position between the object tool and the editing tool is detected to execute processing corresponding to, for example, shape change or color processing determined by the corresponding editing tool, thereby modifying attribute data of the object being displayed.

Abstract: Disclosed is a 3-dimensional model-processing apparatus capable of processing a 3-dimensional model appearing on a display unit including a sensor for generating information on the position and the posture, which can be controlled by the user arbitrarily, and control means for carrying out a grasp-state-setting process of taking a relation between the sensor-generated information on the position and the posture of the sensor and information on the position and the posture of the 3-dimensional model appearing on the display unit as a constraint relation on the basis of a relation between the 3-dimensional position of the 3-dimensional model appearing on the display unit and the 3-dimensional position of a tool appearing on the display unit for the sensor or on the basis of a relation between the 3-dimensional posture of the 3-dimensional model appearing on the display unit and the 3-dimensional posture of the tool appearing on the display unit for the sensor.

Abstract: This invention makes it possible to produce a high quality synthesized panoramic image when it is difficult to highly precisely shift the image pickup direction.

Abstract: A whole image showing the entire range of the object of shooting is generated by picking up unit images, each constituting a part of the scenic range to be imaged, by sequentially shifting the image pickup direction, cutting out image regions of a predetermined size, each constituting a part of each of the unit images picked up in the image pickup step, so as to produce overlapping areas and sequentially and partly superposing the image region. The noise components of the image regions are uniformized to improve the image quality by cutting out image regions as to make two or more than two image regions overlap each other in average for the position of each unit image of the whole image to be generated.

Abstract: An image processing apparatus for finding reflectivity based on a BRDF model expressing a ratio of reflection of light incident upon one point of a surface of an object to be drawn at the object surface, the image processing apparatus having an operation unit for calculating the reflectivity based on a BRDF model calculated by a quadratic-form matrix expression including a vector comprised of a light source direction vector, a viewpoint direction vector, and a normal direction vector and a matrix determining the characteristics of the BRDF model, thereby able to achieve both a variety of expression power and good operation efficiency when mounted in a programmable pixel shader and further having enough of a compactness to easily cope with a shift-variant BRDF, and a method of the same.

Abstract: A three-dimensional model processing apparatus which can more really carry out change processing of shape, color, etc. with respect to the three-dimensional object displayed on display, and an operator operates the object tool in which position change and orientation change can be made and an editing tool in which relative distance with respect to the object tool can be changed to relatively move both tools so that the relative position between the object tool and the editing tool is detected to execute processing, e.g., shape change or coloring processing, etc. set in correspondence with the editing tool on the basis of the detected relative position information between both tools to change shape, color, etc. by attribute change of the object to be edited displayed on display to display it.

Abstract: Disclosed is a 3-dimensional-model-processing apparatus for carrying out various kinds of processing, such as processing to deform a 3-dimensional model appearing on a display unit and processing to paint the model on the basis of 3-dimensional-position information input from a 3-dimensional sensor, the 3-dimensional-model-processing apparatus comprising control means for setting an operating point or an operating area used as a position at which processing using a processing tool is to be carried out on the 3-dimensional model serving as a processed object appearing on the display unit as a position dependent upon the position of the processing tool and carrying out the processing on the 3-dimensional model at the set operating point or the set operating area.

Abstract: A 3-dimensional-model-processing apparatus for carrying out processing to change information on surfaces of a 3-dimensional model serving as an object of editing appearing on picture display means on the basis of information on 3-dimensional positions which is obtained from a 3-dimensional sensor comprising control means for executing control of processing carried out on the 3-dimensional model serving as an object of editing by using an editing tool appearing on the picture display means, wherein the control means allows attributes of the editing tool to be changed and carries out processing to change the information on surfaces of the 3-dimensional model serving as an object of editing in accordance with the changed attributes of the editing tool.

Abstract: Disclosed is a 3-dimensional model-processing apparatus capable of processing a 3-dimensional model appearing on a display unit including a sensor for generating information on the position and the posture, which can be controlled by the user arbitrarily, and control means for carrying out a grasp-state-setting process of taking a relation between the sensor-generated information on the position and the posture of the sensor and information on the position and the posture of the 3-dimensional model appearing on the display unit as a constraint relation on the basis of a relation between the 3-dimensional position of the 3-dimensional model appearing on the display unit and the 3-dimensional position of a tool appearing on the display unit for the sensor or on the basis of a relation between the 3-dimensional posture of the 3-dimensional model appearing on the display unit and the 3-dimensional posture of the tool appearing on the display unit for the sensor.

Abstract: A three-dimensional model processing apparatus is disclosed by which a three-dimensional position of a body displayed on a display unit can be recognized readily. A reference point is displayed in the proximity of a body displayed on the display unit, and a straight line produced by rotating the Z-axis by a predetermined angle around the X-axis is displayed as a straight line extending from the reference point. Further, a plane is produced by rotating the XZ plane by the predetermined angle around the X-axis, and an intersecting line between the plane and the body is displayed together with the body. The display facilitates recognition of the three-dimensional position of the body displayed on the display unit.

Abstract: The present invention relates to a method and a device for controlling access to a disc storage device comprising a plurality of discs storing a plurality of second data obtained by dividing first data, the disc being configured such that a number of sectors included at tracks in an outer section of the disc is greater than a number of sectors included at tracks in an inner section of the disc. In particular, the method and device for controlling disc array decides the discs storing each of a plurality of the second data, and information comprising the addresses of the second data on the disc and the size of each item of a plurality of the second data in such a manner that the time required for accessing each of a plurality of the second data stored in the disc device becomes equal, with access then being carried out to the disc device on the basis of the decided information.

Abstract: There is provided a disc array control method and apparatus for controlling access to a disc drive consisting of a plurality of second data obtained by dividing a first data and a plurality of discs for storing the error correction data for the second data. Particularly, the disc array control method and apparatus of the present invention determines the information consisting of disc storing a plurality of the second data and address on the disc, data size of a plurality of second data and disc storing the error correction data and address on the disc to make equal the time required for access to a plurality of second data and error correction data and executes the access to the disc drive on the basis of the determined information. Thereby, the time required for access to the error correction data and sub-blocks can be set to equal time and the real-time property can be assured while maintaining high reliability.

Abstract: In a storage disk control apparatus, a load of a computer caused by transferring data is reduced, and a waiting time until a data transfer operation is commenced is shortened. In the disk control method for controlling a disk apparatus including a disk having a plurality of storage regions for storing data therein by way of an external apparatus external addresses produced from the external apparatus are related to internal addresses indicative of positions of the storage regions the external addresses are converted into the internal addresses related thereto, and the disk is accessed based on the internal addresses.

Abstract: A method and apparatus for controlling the access to a recording disk which determines a skew so that a rotational delay time at an average distance of movement when a head accesses the recording disk is minimized. The methods and apparatus determine the position of a data block on the recording disk based on at least the determined skew, schedules an order of a plurality of input disk access requests so that an amount of movement of the head becomes small at the time of access with respect to the recording disk by the head, and the head accesses the recording disk based on the result of the scheduling.

Abstract: A reordering device 1.sub.-- 1 rearranges the segments of each block of time series data comprised of a plurality of blocks in block units. A selecting device 2.sub.-- 1 selects from among a plurality of time series data S1.sub.-- 1 to 1.sub.-- 4 rearranged by the reordering device 1 by switching in accordance with the speed and transmits the corresponding segments of the selected time series data sequentially to the reordering device 3.sub.-- 1 etc. as the streams S2.sub.-- 1 etc. The repeat reordering device 3.sub.-- 1 rearranges the segments contained in the stream S2.sub.-- 1 in units of blocks so as to restore the original order and transmits this rearranged time series data.

Abstract: A texture mapping coordinate transformation apparatus for producing post-transformation coordinates by a ratio of plural polynomials having pre-transformation coordinates as variables in order to map a texture picture on a polygon defined by perspective coordinates on a display screen to thereby generate an output display picture on the display screen, and which includes a post-transformation coordinate memory for storing the post-transformation coordinates an error evaluation value memory for storing error evaluation values of the post-transformation coordinates, an error judgment detector for determining that the error evaluation value is within a tolerable range, an initial value setting circuit for setting respective initial values of the post-evaluation coordinate memory and the error evaluation value memory based upon the pre-transformation coordinates, an updating circuit for updating the contents of the post-transformation coordinate memory and the error evaluation value memory responsive to an output

Abstract: A method and apparatus for controlling the access to a recording disk which determines a skew so that a rotational delay time at an average distance of movement when a head accesses the recording disk is minimized. The methods and apparatus determine the position of a data block on the recording disk based on at least the determined skew, schedules an order of a plurality of input disk access requests so that an amount of movement of the head becomes small at the time of access with respect to the recording disk by the head, and the head accesses the recording disk based on the result of the scheduling.