Formation of a time-varying signal representative of at least variations in a value based on pixel values
First Claim
1. A method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the method comprising acts of:
- receiving the sequence of images;
forming a plurality of groups of sub-sets of pixel values by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence; and
selecting groups of sub-sets to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images, each volume comprising pixel values within a spatial aperture from each image within an interval of the sequence.
0 Assignments
0 Petitions
Accused Products
Abstract
A method of forming a time-varying signal representative of at test variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, includes obtaining the sequence of images. A plurality of groups of sub-sets of pixel values are formed by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence. Groups of sub-sets are selected to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images. Each volume includes pixel values within a spatial aperture from each image within an interval of the sequence.
-
Citations
48 Claims
-
1. A method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the method comprising acts of:
-
receiving the sequence of images; forming a plurality of groups of sub-sets of pixel values by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence; and selecting groups of sub-sets to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images, each volume comprising pixel values within a spatial aperture from each image within an interval of the sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the method comprising acts of:
-
receiving the sequence of images; laying a grid over at least a region of each of a plurality of images based on the received images to obtain spatio-temporal volumes of pixel values, each comprising pixel values of each image within a corresponding spatial aperture, wherein dimensions of the grid varies spatially; forming a plurality of groups of sub-sets of pixel values by selecting a sub-set of at least one pixel value from each spatial aperture of at least two images defining an interval to form a group of associated sub-sets using a different aperture having different dimensions defined by the grid for at least one interval of the sequence of images; and selecting groups of sub-sets to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images, each volume comprising pixel values within a spatial aperture front each image within an interval of the sequence of images. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the method comprising acts of:
-
receiving the sequence of images, such that any two images of the sequence define a time interval; composing one or more spatio-temporal volumes responsive to the received sequence of images, each composed volume comprising at least one selected spatial aperture and at least one selected time interval wherein at least a first one of the composed volumes has at least one of a different aperture and a different interval length from a second one of the composed volumes; obtaining at least one spatio-temporal volume, each obtained spatio-temporal volume comprising pixel values of the spatial aperture of selected of the composed spatio-temporal volumes, the pixel values being from the received sequence of images including the images of the time interval of the selected of the spatio-temporal volumes; and forming the time-varying signal responsive to groups of sub-sets of the pixel values of one or more of the obtained spatio-temporal volumes.
-
-
21. A system for forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the system comprising:
a processor configured to; receive the sequence of images; form a plurality of groups of sub-sets of pixel values by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence; and select groups of sub-sets to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images, each volume comprising pixel values within a spatial aperture from each image within an interval of the sequence. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
31. A machine-readable non-transitory medium including a set of instructions configured to cause a system having information processing capability to perform a method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the method comprising acts of:
-
receiving the sequence of images; forming a plurality of groups of sub-sets of pixel values by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence; and selecting groups of sub-sets to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images, each volume comprising pixel values within a spatial aperture from each image within an interval of the sequence. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
-
-
41. A system for forming a time-varying signal representative of at least variations in a value based on pixels and corresponding pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the system comprising:
a processor configured to; obtain the sequence of images; form a plurality of groups of sub-sets of pixels and corresponding pixel values by selecting a sub-set of at least one pixel and corresponding pixel value from each of at least two images defining an interval to form a group of associated sub-sets, wherein, for any pair of groups with only sub-sets from the same images, the sub-sets from more than one image are different pixels; and select groups of sub-sets to form the signal in accordance with at least one selection criterion, wherein the selected groups of sub-sets cover different intervals, shorter than a length of the sequence.
-
42. A method of forming a time-varying signal representative of at least variations in a value based on pixels and corresponding pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the method comprising acts of:
-
obtaining the sequence of images; forming a plurality of groups of sub-sets of pixels and corresponding pixel values by selecting a sub-set of at least one pixel and corresponding pixel value from each of at least two images defining an interval to form a group of associated sub-sets, such that images are covered by at least two intervals; and selecting groups of sub-sets to form the signal in accordance with at least one selection criterion, wherein the selected groups of sub-sets cover at least one of different pixels and intervals, shorter than a length of the sequence. - View Dependent Claims (43, 44, 45, 46, 47, 48)
-
Specification