Anti-moire pixel array having multiple pixel types
First Claim
1. A method for arranging an array of picture elements (pixels) comprising the steps of:
- selecting a non-uniform predictable distribution function from the group of a short pseudo-random number sequence, a nonlinear mathematical function having broad spectral content, and a cyclic redundancy check polynomial-based process;
arranging a first set of pixels along at least one dimensional axis according to said non-uniform predictable distribution function, resulting in non-uniformly spaced non-uniformly sized gaps between the pixels of the first set; and
arranging at least one additional set of pixels within said non-uniformly spaced and non-uniformly sized gaps between the pixels of the first set by placing pixels from said additional set(s) into appropriately sized gaps, thereby producing a composite array having at least one additional array of non-uniformly spaced pixels overlaid on the array of first set of pixels in which all pixels are spatially noncoincident.
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Accused Products
Abstract
A two-dimensional array of non-uniformly spaced pixels having a plurality of overlaid pixel sets for avoiding moiré patterns in digital images by avoiding producing an inherent “frequency” or pattern that may interfere with details or harmonics present in the image source, thereby eliminating the occurrence of moiré patterns and the need for application of image processing to remove Moiré patterns. A first set of pixels, (imaging sensors or display elements) are arranged along a two axes according to a non-uniform predictable process. The first set pixels spacing inherently produces non-uniformly spaced and sized “gaps”, in which additional sets of pixels potentially having a different characteristics from the first set, may be placed, thereby yielding an array comprised of multiple overlaid arrangements of non-uniformly spaced pixels. As such, images samples from or displayed on the additional sets of pixel sensors also avoid production of Moiré patterns.
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Citations
15 Claims
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1. A method for arranging an array of picture elements (pixels) comprising the steps of:
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selecting a non-uniform predictable distribution function from the group of a short pseudo-random number sequence, a nonlinear mathematical function having broad spectral content, and a cyclic redundancy check polynomial-based process;
arranging a first set of pixels along at least one dimensional axis according to said non-uniform predictable distribution function, resulting in non-uniformly spaced non-uniformly sized gaps between the pixels of the first set; and
arranging at least one additional set of pixels within said non-uniformly spaced and non-uniformly sized gaps between the pixels of the first set by placing pixels from said additional set(s) into appropriately sized gaps, thereby producing a composite array having at least one additional array of non-uniformly spaced pixels overlaid on the array of first set of pixels in which all pixels are spatially noncoincident. - View Dependent Claims (2, 3, 4, 5)
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6. A computer readable medium encoded with software for arranging an array of picture elements (pixels), the software causing a computer to perform the steps of:
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selecting a non-uniform predictable distribution function from the group of a short pseudo-random number sequence, a nonlinear mathematical function having broad spectral content, and a cyclic redundancy check polynomial-based process;
placing a first set of pixels along at least one dimensional axis according to said selected non-uniform predictable distribution function, resulting in non-uniformly spaced non-uniformly sized gaps between the pixels of the first set; and
placing at least one additional set of pixels within said non-uniformly spaced and non-uniformly sized gaps between the pixels of the first set by inserting pixels from said additional set(s) into appropriately sized gaps, thereby producing a composite array having at least one additional array of non-uniformly spaced pixels overlaid on the array of first set of pixels in which all pixels are spatially noncoincident. - View Dependent Claims (7, 8, 9, 10)
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11. A composite array of picture elements (pixels) comprising:
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a first array of pixels having a first set of pixels arranged along at least one dimensional axis according to a non-uniform predictable distribution function, and having non-uniformly spaced non-uniformly sized gaps between the pixels of said first set, said distribution function being selected from the group of a short pseudo-random number sequence, a nonlinear mathematical function having broad spectral content, and a cyclic redundancy check polynomial-based process; and
at least one additional array of pixels overlaid upon said first array, said additional array(s) each having an additional set of pixels placed within said non-uniformly spaced and non-uniformly sized gaps between the pixels of the first pixel set, thereby yielding a composite array of pixels in which each array has non-uniform predictable spacing in which all pixels are spatially noncoincident. - View Dependent Claims (12, 13, 14, 15)
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Specification