Method and apparatus for measurement, analysis, characterization, emulation, and translation of perception
First Claim
1. A method for measuring perception of an observer, the method using a stimulus output device for presenting stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, the method comprising the steps of:
- a) selecting a sequence of stimuli from the database of stimuli, said stimuli represented as stimulus points contained in a stimulus space;
b) determining a reference transformation of a beginning stimulus point of the sequence of stimuli, the reference transformation being presented to the observer by the stimulus output device;
c) selecting a limited portion of the sequence of stimuli, the limited portion of the sequence defined between the beginning stimulus point and an ending stimulus point, the limited portion of the sequence being presented to the observer by the stimulus output device;
d) determining an observer-defined transformation applied to the ending stimulus point of the limited portion of the sequence such that the observer perceives the observer-defined transformation applied to the ending stimulus point to be perceptually equivalent to the reference transformation applied to the beginning stimulus point;
e) selecting a new limited portion of the sequence of stimuli, the new limited portion of the sequence defined by stimulus points selected from the database, at least a portion of the new limited portion having stimulus points different from the stimulus points defining the previously selected limited portion of the sequence;
f) determining another observer-defined transformation applied to an ending stimulus point of the new limited portion of the sequence such that the observer perceives the observer-defined transformation to be perceptually equivalent to the previous observer-defined transformation; and
g) performing steps (e) through (f) until a predetermined number of limited portions of the sequence of stimuli are processed such that the observer perceives each observer-defined transformation to be perceptually equivalent to previous observer-defined transformations.
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Abstract
A method is used for measuring perception of an observer using a stimulus output device for presenting stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli. The method includes the steps of: a) selecting a sequence of stimuli from the database of stimuli, the stimuli represented as stimulus points contained in a stimulus space; b) determining a reference transformation of a beginning stimulus point of the sequence of stimuli, the reference transformation being presented to the observer by the stimulus output device; c) selecting a limited portion of the sequence of stimuli, the limited portion of the sequence defined between the beginning stimulus point and an ending stimulus point, the limited portion of the sequence being presented to the observer by the stimulus output device; d) determining an observer-defined transformation applied to the ending stimulus point of the limited portion of the sequence such that the observer perceives the observer-defined transformation applied to the ending stimulus point to be perceptually equivalent to the reference transformation applied to the beginning stimulus point; e) selecting a new limited portion of the sequence of stimuli, the new limited portion of the sequence defined by stimulus points selected from the database, at least a portion of the new limited portion having stimulus points different from the stimulus points defining the previously selected limited portion of the sequence; f) determining another observer-defined transformation applied to an ending stimulus point of the new limited portion of the sequence such that the observer perceives the observer-defined transformation to be equivalent to the previous observer-defined transformation; and g) performing steps (e) through (f) until a predetermined number of limited portions of the sequence of stimuli are processed such that the observer perceives each observer-defined transformation to be equivalent to previous observer-defined transformations.
25 Citations
53 Claims
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1. A method for measuring perception of an observer, the method using a stimulus output device for presenting stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, the method comprising the steps of:
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a) selecting a sequence of stimuli from the database of stimuli, said stimuli represented as stimulus points contained in a stimulus space; b) determining a reference transformation of a beginning stimulus point of the sequence of stimuli, the reference transformation being presented to the observer by the stimulus output device; c) selecting a limited portion of the sequence of stimuli, the limited portion of the sequence defined between the beginning stimulus point and an ending stimulus point, the limited portion of the sequence being presented to the observer by the stimulus output device; d) determining an observer-defined transformation applied to the ending stimulus point of the limited portion of the sequence such that the observer perceives the observer-defined transformation applied to the ending stimulus point to be perceptually equivalent to the reference transformation applied to the beginning stimulus point; e) selecting a new limited portion of the sequence of stimuli, the new limited portion of the sequence defined by stimulus points selected from the database, at least a portion of the new limited portion having stimulus points different from the stimulus points defining the previously selected limited portion of the sequence; f) determining another observer-defined transformation applied to an ending stimulus point of the new limited portion of the sequence such that the observer perceives the observer-defined transformation to be perceptually equivalent to the previous observer-defined transformation; and g) performing steps (e) through (f) until a predetermined number of limited portions of the sequence of stimuli are processed such that the observer perceives each observer-defined transformation to be perceptually equivalent to previous observer-defined transformations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 35, 36, 37, 38, 39)
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13. An apparatus for measuring perception of an observer comprising:
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a) a stimulus output device for presenting stimuli to the observer; b) a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, said stimuli represented as stimulus points contained in a stimulus space; c) a computer operatively coupled to the stimulus output device and operatively coupled to the stimulus manipulation device, the computer accessing the database of stimuli; d) said stimulus manipulation device permitting observer selection of a sequence of stimuli from the database and permitting observer determination of a reference transformation of a beginning stimulus point of the sequence of stimuli, said reference transformation being presented to the observer by the stimulus output device; e) said stimulus manipulation device permitting observer selection of a limited portion of the sequence of stimuli, the limited portion of the sequence defined between the beginning stimulus point and an ending stimulus point, the limited portion of the sequence being presented to the observer by the stimulus output device; f) said observer determining an observer-defined transformation applied to the ending stimulus point of the limited portion of the sequence such that the observer perceives the observer-defined transformation applied to the ending stimulus point to be perceptually equivalent to the reference transformation applied to the beginning stimulus point; and g) said computer recording the sequence of stimuli and each observer-defined transformation in a memory of the computer.
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14. A method for measuring perception of an observer, the method using a stimulus output device for presenting stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, the method comprising the steps of:
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a) selecting a plurality of stimulus points from the database of stimuli, said stimulus points contained in a stimulus space; b) presenting a selected stimulus point to the observer by the stimulus output device, the selected stimulus point selected from the plurality of stimulus points; c) determining a first transformation of the selected stimulus point, the first transformation being presented to the observer by the stimulus output device; d) determining a second transformation of the selected stimulus point, the second transformation being presented to the observer by the stimulus output device; e) determining an observer-defined transformation applied to the stimulus point resulting from application of the second transformation to the selected stimulus point, such that the observer perceives the observer-defined transformation to be perceptually equivalent to the first transformation of the selected stimulus point; f) providing another selected stimulus point, said another selected stimulus point selected from the plurality of stimulus points; and g) performing steps (b) through (f) until a predetermined number of the plurality of stimulus points are processed. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method for measuring perception of an observer, the method using a stimulus output device for presenting stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, the method comprising the steps of:
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a) selecting a beginning stimulus point from the database of stimuli, the stimulus output device presenting the beginning stimulus point to the observer, the database containing a plurality of stimulus points defining a stimulus space; b) specifying N-number of linearly independent vectors, each of the linearly independent vectors representing a transformation of the beginning stimulus point, the value of N equal to a predetermined the number of dimensions in a manifold representing the stimulus space; c) determining M-number of transformation vectors, each transformation vector formed as a weighted combination of said N number of linearly independent vectors, each of said M-number of transformation vectors being transformations of the beginning stimulus point and having a common vertex located at the beginning stimulus point and diverging from the common vertex, each of said M-number of transformation vectors defined by a sequence of stimulus points starting at the beginning stimulus point and terminating at an ending stimulus point, each of said M-number of transformation vectors being presented to the observer by the stimulus output device; and d) determining a sequence of P-number of transformation vectors forming a connected path, each transformation vector determined by the observer such that the observer perceives each transformation vector in said sequence of P-number of transformation vectors to be perceptually equivalent to at least one of the M-number of transformation vectors having a common vertex located at the beginning stimulus point. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for measuring and characterizing perception of a selected observer, the method using a stimulus output device for presenting stimuli and transformations of the stimuli to the observer, and a stimulus manipulation device permitting the observer to modify the presented stimuli by selecting related stimuli from a database of stimuli, to create a plurality of transformations of selected stimulus points, the stimulus points contained in the database of stimulus points defining a stimulus space, the plurality of transformations recorded in a memory of a computer, the method including the steps of:
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a) providing a parallel transporter corresponding to the selected observer, said parallel transporter receiving a beginning stimulus point, and first and second transformations of a beginning stimulus point, b) mapping the beginning stimulus point and the first and second transformations onto a resultant transformation of a destination stimulus point, said parallel transporter performing the mapping, said destination stimulus point formed by application of the second transformation to the beginning stimulus point, said resultant transformation perceived by the observer to be perceptually equivalent to the first transformation of the beginning stimulus point, and said parallel transporter defining an affine connection common to the first transformation, the second transformation, the resultant transformation, and the plurality of stimulus points included in the stimulus space; and c) storing a plurality of internal parameters of the parallel transporter in a memory of the computer, said internal parameters determining the mapping. - View Dependent Claims (32, 33, 34, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification