US5715384A — Real-time image display method and apparatus disp…

Claim 1

Independent Claim 176 words

A real-time image display method comprising: a first step of identifying each of a plurality of parts of an image to be displayed on a display screen, with a vision position which falls in a vision field of an operator; a second step of determining a visual resolution at each vision position identified at said first step, at least two different visual resolutions being determined; a third step of using determining means for creating said image and parameters therefor for each of the identified parts of said image in accordance with said visual resolutions identified at said second step; a fourth step of creating an image of each of said vision parts by use of said determining means and said parameters determined at said third step, images of at least two parts having different visual resolutions; a fifth step of storing the images created at said fourth step in a memory; and a sixth step of reading the images stored in the memory at said fifth step and displaying the read images on the display screen.

Claim 2

Dependent Claim 176 words

A real-time image display method comprising: a first step of identifying each of a plurality of parts of an image to be displayed on a display screen, with a vision position which falls in a vision field of an operator; a second step of determining a visual resolution at each vision position identified at said first step, at least two different visual resolutions being determined; a third step of using determining means for creating said image and parameters therefor for each of the identified parts of said image in accordance with said visual resolutions identified at said second step; a fourth step of creating an image of each of said vision parts by use of said determining means and said parameters determined at said third step, images of at least two parts having different visual resolutions; a fifth step of storing the images created at said fourth step in a memory; and a sixth step of reading the images stored in the memory at said fifth step and displaying the read images on the display screen.

Claim 3

Dependent Claim 150 words

A real-time image display method as set forth in claim 1, wherein at said first step, a position and a direction of a display screen on a display unit are used as a reference; the direction of an eyesight of the operator is defined as a first direction while a direction from an eye point of the operator to a point on said display screen is defined as a second direction so as to measure the eye point and the direction of the eyesight of the operator; an angle in a horizontal vision field direction between the first and second directions, and an angle of a vertical vision field direction are obtained for each of a plurality of parts on said display screen; and a position in the vision field, onto which each of the parts of said image falls is identified in accordance with the thus obtained two angles.

Claim 4

Dependent Claim 49 words

A real-time image display method as set forth in claim 2, wherein at said second step, approximation for an eyesight characteristic is carried out such that the visual resolution is identical at positions having angles from the center of a vision field which are substantially equal to each other.

Claim 5

Dependent Claim 50 words

A real-time image display method as set forth in claim 1, wherein a value which is obtained by normalizing a visual resolution at the center of the retina of the operator with a reference value which is determined to be maximum, is used as a representative value of visual resolution.

Claim 6

Dependent Claim 35 words

A real-time image display method as set forth in claim 2, wherein as said first step, the eye point and the direction of eyesight are measured in accordance with an effective eye of the operator.

Claim 7

Dependent Claim 193 words

A real-time image display apparatus comprising: eyesight measuring means for measuring an eye point and a direction of eyesight of an operator with reference to a display screen; relative angular velocity calculating means for calculating time-variation in an angle between the direction of eyesight obtained by said eyesight measuring means, and a direction from said eye point to drawing data; moving body eyesight determining means for determining a moving body eyesight at the time when the operator perceives the drawing data, in accordance with a relative angular velocity obtained by said relative angular velocity calculating means, and for selecting at least two different visual resolutions according to the determined moving body eyesight; drawing technique selecting means for determining at least two techniques for creating an image and parameters therefor in accordance with the visual resolutions selected by said moving body eyesight determining means; image creating means for creating an image of said drawing data by use of said techniques and said parameters determined by said drawing technique selecting means and for storing the created image; and image display means for displaying said image stored in said image creating means on the display screen.

Claim 8

Dependent Claim 193 words

A real-time image display apparatus comprising: eyesight measuring means for measuring an eye point and a direction of eyesight of an operator with reference to a display screen; relative angular velocity calculating means for calculating time-variation in an angle between the direction of eyesight obtained by said eyesight measuring means, and a direction from said eye point to drawing data; moving body eyesight determining means for determining a moving body eyesight at the time when the operator perceives the drawing data, in accordance with a relative angular velocity obtained by said relative angular velocity calculating means, and for selecting at least two different visual resolutions according to the determined moving body eyesight; drawing technique selecting means for determining at least two techniques for creating an image and parameters therefor in accordance with the visual resolutions selected by said moving body eyesight determining means; image creating means for creating an image of said drawing data by use of said techniques and said parameters determined by said drawing technique selecting means and for storing the created image; and image display means for displaying said image stored in said image creating means on the display screen.

Claim 9

Dependent Claim 56 words

A real-time image display apparatus as set forth in claim 6, wherein said moving body eyesight determining means uses a value which is obtained by normalizing an eyesight at the time when said relative angular speed is zero, with a reference value which is determined to be maximum, as a representative value of moving body eyesight.

Claim 10

Dependent Claim 37 words

A real-time image display apparatus as set forth in claim 7, wherein said eyesight measuring means measures an eye point and a direction of eyesight of the operator, being based upon an effective eye of the operator.

Claim 11

Dependent Claim 161 words

A real-time image display apparatus comprising: first means for identifying each of a plurality of parts of an image to be displayed on a display screen, with a vision position which falls in a vision field of an operator; second means for determining a visual resolution at each vision position identified by said first means, at least two different visual resolutions being determined; third means for determining at least two techniques for creating said image and parameters therefor for each of vision parts of said image in accordance with said visual resolutions identified at said second means; fourth means for creating an image of each of said vision parts by use of said techniques and said parameters determined by said third means; fifth means for storing images corresponding to each of the vision parts created by said fourth means; and sixth means for reading the images stored in said fifth means and displaying the read images together on the display screen.

Claim 12

Dependent Claim 161 words

A real-time image display apparatus comprising: first means for identifying each of a plurality of parts of an image to be displayed on a display screen, with a vision position which falls in a vision field of an operator; second means for determining a visual resolution at each vision position identified by said first means, at least two different visual resolutions being determined; third means for determining at least two techniques for creating said image and parameters therefor for each of vision parts of said image in accordance with said visual resolutions identified at said second means; fourth means for creating an image of each of said vision parts by use of said techniques and said parameters determined by said third means; fifth means for storing images corresponding to each of the vision parts created by said fourth means; and sixth means for reading the images stored in said fifth means and displaying the read images together on the display screen.

Claim 13

Dependent Claim 147 words

A real-time image display apparatus as set forth in claim 9, wherein in said first means, a position and a direction of a display screen on a display unit are used as a reference; the direction of an eyesight of the operator is defined as a first direction while a direction from an eye point of the operator to a point on said display screen is defined as a second direction so as to measure the eye point and the direction of the eyesight of the operator; an angle in a horizontal vision field direction between the first and second directions, and an angle of a vertical vision field direction are obtained for each of parts on said display screen; and a position in the vision field, onto which each of the parts of said image falls is identified in accordance with said thus obtained two angles.

Claim 14

Dependent Claim 50 words

A real-time image display apparatus as set forth in claim 9, wherein in said second means, an approximation for an eyesight characteristic is carried out such that the visual resolution is identical at positions having angles from the center of a vision field which are substantially equal to each other.

Claim 15

Dependent Claim 50 words

A real-time image display apparatus as set forth in claim 9, wherein a value which is obtained by normalizing a visual resolution at the center of the retina of the operator with a reference value which is determined to be maximum, is used as a representative value of visual resolution.

Claim 16

Dependent Claim 35 words

A real-time image display apparatus as set forth in claim 10, wherein as said first step, the eye point and the direction of eyesight are measured in accordance with an effective eye of the operator.

Claim 17

Dependent Claim 158 words

An image processing apparatus comprising: detection means for detecting a position on a display screen at which an operator is looking; first determination for determining a center area of a predetermined size including the position detected by said detection means and another area different from the center area; second determination means for determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on the another area, the first and second image generation algorithms being different from each other; image generation means for generating the first and second images using the first and second image generation algorithms, respectively, determined by said second determination means, and for storing the first and second images; and display control means for reading the stored first and second images, and for causing display of the first and second images together on the display screen.

Claim 18

Dependent Claim 158 words

An image processing apparatus comprising: detection means for detecting a position on a display screen at which an operator is looking; first determination for determining a center area of a predetermined size including the position detected by said detection means and another area different from the center area; second determination means for determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on the another area, the first and second image generation algorithms being different from each other; image generation means for generating the first and second images using the first and second image generation algorithms, respectively, determined by said second determination means, and for storing the first and second images; and display control means for reading the stored first and second images, and for causing display of the first and second images together on the display screen.

Claim 19

Dependent Claim 34 words

Apparatus according to claim 14, wherein said second determination means determines the first and second image generation algorithms such that a resolution of the first image is higher than that of the second image.

Claim 20

Dependent Claim 30 words

Apparatus according to claim 14, wherein said detection means detects the position on the display screen at which the operator is looking with an eye more skillfully than the other.

Claim 21

Dependent Claim 25 words

Apparatus according to claim 14, wherein the first image generation algorithm comprises a tracing method and the second image generation comprises a scan line method.

Claim 22

Dependent Claim 28 words

Apparatus according to claim 15, wherein said second determination means determines the first and second image generation methods in units of figures to be displayed in each area.

Claim 23

Dependent Claim 146 words

An image processing method comprising the steps of: detecting a position on a display screen at which nnan operator is looking; a first step of determining a center area of a predetermined size including the detected position and another area different from the center area; a second step of determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on the another area, the first and second image generation algorithms being different from each other; generating the first and second images using the determined first and second image generation algorithms, respectively, and storing the generated first and second images; and controlling a display means to read the first and second stored images and to display together the generated first and second images on the display screen.

Claim 24

Dependent Claim 146 words

An image processing method comprising the steps of: detecting a position on a display screen at which nnan operator is looking; a first step of determining a center area of a predetermined size including the detected position and another area different from the center area; a second step of determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on the another area, the first and second image generation algorithms being different from each other; generating the first and second images using the determined first and second image generation algorithms, respectively, and storing the generated first and second images; and controlling a display means to read the first and second stored images and to display together the generated first and second images on the display screen.

Claim 25

Dependent Claim 35 words

A method according to claim 19, wherein said second determining step determines the first and second image generation algorithms such that a resolution of the first image is higher than that of the second image.

Claim 26

Dependent Claim 31 words

A method according to claim 19, wherein said detecting step detects the position on the display screen at which the operator is looking with an eye more skillful than the other.

Claim 27

Dependent Claim 27 words

A method according to claim 19, wherein the first image generation algorithm comprises a tracing method and the second image generation algorithm comprises a scanned line method.

Claim 28

Dependent Claim 29 words

A method according to claim 20, wherein said second determining step determines the first and second image generation algorithms in units of figures to be displayed in each area.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-02-02	2001-08-04	2002-02-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-02-02	2005-08-04	2006-02-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-02-02	2009-08-04	2010-02-03	$7700.00	Window Closed / Lapsed

Real-time image display method and apparatus displaying two different visual resolutions

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