Indication position calculation system, indicator for indication position calculation system, game system, and indication position calculation method
First Claim
Patent Images
1. An indication position calculation system calculating an indication position of an indicator, the indication position calculation system comprising:
- a light-emitting section;
an imaging section which is provided in the indicator, acquires an image and successively outputs light-reception information of pixels of the acquired image, wherein one of the pixels having the light-reception information output primarily is disposed on a lower side of the image when the indicator is held in a reference position and another one of the pixels having the light-reception information output last is disposed on an upper side of the image when the indicator is held in a reference position;
a determination section which determines whether or not the pixels are effective pixels satisfying a given condition based on the light-reception information without determining whether the pixels are those corresponding to the light-emitting section; and
a calculation section which performs position calculations based on identification information of the effective pixels in order to obtain the indication position of the indicator when light received by the effective pixels is included in light emitted from the light-emitting section,the calculation section performing the position calculations based on the identification information of a first effective pixel, the first effective pixel being a first one of the effective pixels determined to satisfy the given condition,wherein the determination section determines whether or not each of the pixels satisfies the given condition and then determines whether or not each of the pixels satisfies a second condition; and
wherein the calculation section sets a predetermined area of the image, that is less than an entire area of the image, including the first effective pixel as a determination area, and performs the position calculations based on the identification information of part of the effective pixels included in the determination area,the identification information of the effective pixels included in the determination area and satisfying the second condition being differently weighted from the effective pixels included in the determination area but not satisfying the second condition.
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Abstract
An imaging section successively outputs light-reception information relating to each pixel from a starting pixel SP to an end pixel EP, the starting pixel SP being provided on one end of an image PC acquired by the imaging section and the end pixel EP being provided on the other end of the image PC. The imaging section is provided in an indicator so that the starting pixel SP is disposed on a lower side and the end pixel EP is disposed on an upper side when the indicator is held in a reference position.
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Citations
12 Claims
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1. An indication position calculation system calculating an indication position of an indicator, the indication position calculation system comprising:
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a light-emitting section; an imaging section which is provided in the indicator, acquires an image and successively outputs light-reception information of pixels of the acquired image, wherein one of the pixels having the light-reception information output primarily is disposed on a lower side of the image when the indicator is held in a reference position and another one of the pixels having the light-reception information output last is disposed on an upper side of the image when the indicator is held in a reference position; a determination section which determines whether or not the pixels are effective pixels satisfying a given condition based on the light-reception information without determining whether the pixels are those corresponding to the light-emitting section; and a calculation section which performs position calculations based on identification information of the effective pixels in order to obtain the indication position of the indicator when light received by the effective pixels is included in light emitted from the light-emitting section, the calculation section performing the position calculations based on the identification information of a first effective pixel, the first effective pixel being a first one of the effective pixels determined to satisfy the given condition, wherein the determination section determines whether or not each of the pixels satisfies the given condition and then determines whether or not each of the pixels satisfies a second condition; and wherein the calculation section sets a predetermined area of the image, that is less than an entire area of the image, including the first effective pixel as a determination area, and performs the position calculations based on the identification information of part of the effective pixels included in the determination area, the identification information of the effective pixels included in the determination area and satisfying the second condition being differently weighted from the effective pixels included in the determination area but not satisfying the second condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An indicator for an indication position calculation system, the indicator comprising:
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an imaging section which acquires an image of a light-emitting section and successively outputs light-reception information of pixels of the acquired image, a determination section which determines whether or not the pixels are effective pixels satisfying a given condition based on the light-reception information without determining whether the pixels are those corresponding to the light-emitting section; and a calculation section which performs position calculations based on identification information of the effective pixels in order to obtain an indication position of the indicator when light received by the effective pixels is included in light emitted from the light-emitting section, the calculation section performing the position calculations based on the identification information of a first effective pixel, the first effective pixel being a first one of the effective pixels determined to satisfy the given condition; and the imaging section being provided in the indicator held in a reference position when one of the pixels having the light-reception information output primarily is disposed on a lower side of the image and another one of the pixels having the light-reception information output last is disposed on an upper side of the image, wherein the determination section determines whether or not each of the pixels satisfies the given condition and then determines whether or not each of the pixels satisfies a second condition; and wherein the calculation section sets a predetermined area of the image, that is less than an entire area of the image, including the first effective pixel as a determination area, and performs the position calculations based on the identification information of part of the effective pixels included in the determination area, the identification information of the effective pixels included in the determination area and satisfying the second condition being differently weighted from the effective pixels included in the determination area but not satisfying the second condition.
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11. A game system calculating an indication position of an indicator, the game system comprising:
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a display section which displays an object; a light-emitting section which has a given positional relationship with the display section; an imaging section which is provided in the indicator, acquires an image and successively outputs light-reception information of pixels of the acquired image, wherein one of the pixels having the light-reception information output primarily is disposed on a lower side of the image when the indicator is held in a reference position and another one of the pixels having the light-reception information output last is disposed on an upper side of the image when the indicator is held in a reference position; a determination section which determines whether or not the pixels are effective pixels satisfying a given condition based on the light-reception information without determining whether the pixels are those corresponding to the light-emitting section; and a calculation section which performs position calculations based on identification information of the effective pixels in order to obtain the indication position of the indicator when light received by the effective pixels is included in light emitted from the light-emitting section, the calculation section performing the position calculations based on the identification information of a first effective pixel, the first effective pixel being a first one of the effective pixels determined to satisfy the given condition, wherein the determination section determines whether or not each of the pixels satisfies the given condition and then determines whether or not each of the pixels satisfies a second condition; and wherein the calculation section sets a predetermined area of the image, that is less than an entire area of the image, including the first effective pixel as a determination area, and performs the position calculations based on the identification information of part of the effective pixels included in the determination area, the identification information of the effective pixels included in the determination area and satisfying the second condition being differently weighted from the effective pixels included in the determination area but not satisfying the second condition.
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12. An indication position calculation method comprising:
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causing an imaging section provided in an indicator to acquire an image of a light-emitting section and successively output light-reception information of pixels of the acquired image; causing a determination section to determine whether or not the pixels are effective pixels satisfying a given condition based on the light-reception information without determining whether the pixels are those corresponding to the light-emitting section; and causing a calculation section to perform position calculations based on identification information of the effective pixels in order to obtain an indication position of the indicator when light received by the effective pixels is included in light emitted from the light-emitting section; the calculation section performing the position calculations based on the identification information of a first effective pixel, the first effective pixel being a first one of the effective pixels determined to satisfy the given condition; and the imaging section being provided in the indicator held in a reference position when one of the pixels having the light-reception information output primarily is disposed on a lower side of the image and another one of the pixels having the light-reception information output last is disposed on an upper side of the image, wherein the determination section determines whether or not each of the pixels satisfies the given condition and then determines whether or not each of the pixels satisfies a second condition; and wherein the calculation section sets a predetermined area of the image, that is less than an entire area of the image, including the first effective pixel as a determination area, and performs the position calculations based on the identification information of part of the effective pixels included in the determination area, the identification information of the effective pixels included in the determination area and satisfying the second condition being differently weighted from the effective pixels included in the determination area but not satisfying the second condition.
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Specification