Open system architecture for surveillance systems with efficient bandwidth management
First Claim
Patent Images
1. A signal processing method comprising the steps of:
- receiving an image frame including a plurality of rows of pixel data words;
each of the rows including a start pixel data word and a plurality of successive pixel data words;
processing pixels in each row to produce a plurality of difference pixel data words; and
storing the difference pixel data words.
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Abstract
A signal processing method comprises the steps of: receiving an image frame including a plurality of rows of pixel data words, wherein each of the rows includes a start pixel data word and a plurality of successive pixel data words; processing each row by subtracting each successive pixel data word in the row from the start pixel data word in the row to produce a plurality of difference pixel data words; and storing and/or transmitting the difference pixel data words. An apparatus that performs the method is also included.
18 Citations
18 Claims
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1. A signal processing method comprising the steps of:
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receiving an image frame including a plurality of rows of pixel data words;
each of the rows including a start pixel data word and a plurality of successive pixel data words;
processing pixels in each row to produce a plurality of difference pixel data words; and
storing the difference pixel data words. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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an input for receiving an image frame including a plurality of rows of pixel data words, wherein each of the rows includes a start pixel data word and a plurality of successive pixel data words;
a processor for processing each row to produce a plurality of difference pixel data words; and
a memory for storing the compressed difference pixel data words. - View Dependent Claims (9, 10)
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11. A signal processing method comprising the steps of:
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receiving corresponding image frames, each a plurality of pixel data words;
processing the image frames by subtracting each of the pixel data words in a second one of the image data frames from a corresponding pixel data word in a first one of the image frames to produce a plurality of difference pixel data words; and
storing the compressed difference pixel data. - View Dependent Claims (12, 13, 14)
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15. An apparatus comprising:
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an input for receiving corresponding image frames, each a plurality of pixel data words;
a processor for processing the image frames by subtracting each of the pixel data words in a second one of the image data frames from a corresponding pixel data word in a first one of the image frames to produce a plurality of difference pixel data words; and
a memory for storing the compressed difference pixel data. - View Dependent Claims (16, 17, 18)
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Specification