Method and apparatus for measuring dimensions
First Claim
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1. Structure comprising:
- means for producing one measure of a field of view without an object present and for producing another measure of the field of view with an object present, said means for producing comprising;
photosensitive array means for receiving light representing the field of view without an object present and for producing from said light one set of intermediate signals representative of said field of view without an object present, said one set of intermediate signals comprising said one measure, and for receiving light representing the field of view with an object present and for producing from said light another set of intermediate signals representing said field of view with said object present, said another set of intermediate signals comprising said another measure, andmeans for controlling said photosensitive array means to produce in sequence said one set of intermediate signals and said another set of intermediate signals; and
means for processing said one measure and said another measure to produce an intermediate signal indicative of the change of the field of view between said one measure and said another measure, wherein said intermediate signal is also indicative of selected characteristics of said object.
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Abstract
An array of photosensitive imaging sensors connected to a digital computer is utilized to measure selected dimensions of objects upon which the photosensitive array is focused. Two sets of information in the form of analog signals generated by the photosensitive array, both with and without an object in view, are converted to digital form and stored in a memory. The two sets of information contained in the memory are compared to thereby create digital signals indicative of the dimensions of the object. These digital signals are converted to dimensional form and displayed.
49 Citations
15 Claims
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1. Structure comprising:
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means for producing one measure of a field of view without an object present and for producing another measure of the field of view with an object present, said means for producing comprising; photosensitive array means for receiving light representing the field of view without an object present and for producing from said light one set of intermediate signals representative of said field of view without an object present, said one set of intermediate signals comprising said one measure, and for receiving light representing the field of view with an object present and for producing from said light another set of intermediate signals representing said field of view with said object present, said another set of intermediate signals comprising said another measure, and means for controlling said photosensitive array means to produce in sequence said one set of intermediate signals and said another set of intermediate signals; and means for processing said one measure and said another measure to produce an intermediate signal indicative of the change of the field of view between said one measure and said another measure, wherein said intermediate signal is also indicative of selected characteristics of said object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Structure for measuring selected dimensions of an object and for detecting the presence of an object which comprises:
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means for producing a first measure of the field of view without an object present and for producing a second measure of the field of view at a subsequent time with an object present; means for comparing said first measure and said second measure to detect the presence of said object; means for processing said first measure and said second measure to produce measures of selected dimensions of said object. - View Dependent Claims (14, 15)
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Specification