APPARATUS AND METHOD FOR REAL TIME IMAGE COMPRESSION FOR PARTICLE TRACKING
First Claim
Patent Images
1. A method of tracking a flow in a fluid medium comprising:
- injecting a plurality of particles into the flow;
imaging the particles and fluid using a high speed digital video camera;
compressing images provided by the high speed digital video camera in real-time during the imaging; and
processing the compressed images.
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Accused Products
Abstract
A real-time image compression method includes identifying pixels in a set of image data that have a brightness value past a predetermined threshold; determining a position of each identified pixel in the image data; and for each of the identified pixels, defining a vector that includes the brightness value and the position of the identified pixel in the image data.
71 Citations
55 Claims
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1. A method of tracking a flow in a fluid medium comprising:
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injecting a plurality of particles into the flow; imaging the particles and fluid using a high speed digital video camera; compressing images provided by the high speed digital video camera in real-time during the imaging; and processing the compressed images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of tracking objects comprising:
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imaging the objects using a high speed digital video camera; compressing images provided by the high speed digital video camera in real-time during the imaging, the compressing including thresholding pixels in the images in accordance with respective brightness values for the pixels, and defining a vector for each pixel that has a brightness value past a predetermined threshold, the vector including the brightness value and a position of the pixel in the images; and processing the compressed images. - View Dependent Claims (14)
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15. A system for tracking a flow in a fluid medium comprising:
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a high speed digital video camera configured to image particles and fluid; a compression circuit configured to compress images provided by the high speed digital video camera in real-time during the imaging, the compression circuit including a processing system that is, configured to filter image data provided by the high speed digital video camera to remove data related to portions of the images in which there are no imaged particles; and a storage medium configured to store the compressed images. - View Dependent Claims (16)
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17. A real-time image compression method comprising:
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identifying pixels in a set of image data that have a brightness value past a predetermined threshold; determining a position of each identified pixel in the image data; and for each of the identified pixels, defining a vector that includes the brightness value and the position of the identified pixel in the image data. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A real-time image compression method comprising:
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receiving a plurality of groups of pixels that define an image frame; processing each of the plurality of groups of pixels, the processing including identifying pixels in each group of pixels that have a brightness value past a predetermined threshold; and determining a position of the identified pixels in the image frame; and for each of the identified pixels, defining a vector that includes the brightness value and the position of the identified pixel in the image frame, the vector having a same number of bytes as a sequence defined by each group of pixels. - View Dependent Claims (36)
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37. A real-time image compression circuit comprising:
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a plurality of filters configured to identify pixels in a set of image data that have a brightness value past a predetermined threshold; a plurality of memory devices configured to store brightness information related to the identified pixels, the brightness information including a brightness value and a position of each of the identified pixels in the image data; and a multiplexer configured to define for each identified pixel a vector that includes the brightness value and the position of the identified pixel in the image data. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A real-time image compression circuit comprising:
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an input configured to receive a plurality of groups of pixels that define an image frame; a plurality of filters configured to process each group of pixels one at a time and to simultaneously identify pixels in each group of pixels that have a brightness value past a predetermined threshold; a plurality of memory devices configured to store brightness information related to the identified pixels, each memory device in the plurality of memory devices coupled to a corresponding filter of the plurality of filters, the brightness information including a brightness value and a position of each of the identified pixels in the image frame; and a multiplexer configured to define for each identified pixel a vector that includes the brightness value and the position of the identified pixel in the image data.
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55. A camera comprising:
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an optical system configured to capture images of a scene; a processing system configured to output a set of image data based on the captured images; and an image compression circuit configured to compress the captured images in real time, the circuit comprising; a plurality of filters configured to identify pixels in the set of image data that have a brightness value past a predetermined threshold; a plurality of memory devices configured to store brightness information related to the identified pixels, the brightness information including a brightness value and a position of each of the identified pixels in the image data; and a multiplexer configured to define for each identified pixel a vector that includes the brightness value and the position of the identified pixel in the image data.
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Specification