Open system architecture for surveillance systems with efficient bandwidth management
First Claim
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1. A signal processing method comprising the steps of:
- using an input to receive 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;
using a processor to subtract each successive pixel data word in each row from the start pixel data word in the row to produce a plurality of difference pixel data words; and
storing the difference pixel data words in a buffer.
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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.
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Citations
12 Claims
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1. A signal processing method comprising the steps of:
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using an input to receive 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; using a processor to subtract each successive pixel data word in each row from the start pixel data word in the row to produce a plurality of difference pixel data words; and storing the difference pixel data words in a buffer. - View Dependent Claims (2, 3, 4, 5)
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6. 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 subtracting each successive pixel data word in each row from the start pixel data word in the row to produce a plurality of difference pixel data words; and a memory for storing the difference pixel data words.
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7. A signal processing method comprising the steps of:
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using a synthetic aperture radar to produce corresponding image frames of a spot, each image frame including a plurality of pixel data words; using a processor to process 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 difference pixel data in a buffer. - View Dependent Claims (8, 9)
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10. An apparatus comprising:
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a synthetic aperture radar producing corresponding image frames of a spot, each image frame including 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 difference pixel data words. - View Dependent Claims (11, 12)
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Specification