IMAGE-BASED OBJECT COUNTING METHOD AND APPARATUS
First Claim
Patent Images
1. An image-based object counting method comprising:
- rasterizing a counting line in an image into counting line pixels;
determining two points on a trajectory line included in the image as target pixels;
determining, from the counting line pixels, corresponding pixels that correspond to the target pixels;
determining whether the counting line intersects with the trajectory line based on the target pixels and the corresponding pixels; and
determining a number of one or more trajectory lines including the trajectory line that intersect with the counting line as a number of objects that pass the counting line.
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Abstract
An image-based object counting method includes rasterizing a counting line in an image into counting line pixels; determining two points on a trajectory line included in the image, as target pixels; determining, from the counting line pixels, corresponding pixels that corresponds to the target pixels; determining whether the counting line intersects with the trajectory line based on the target pixels and the corresponding pixels; and determining the number of one or more trajectory lines including the trajectory line that intersect with the counting line as the number of objects that pass through the counting line.
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Citations
20 Claims
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1. An image-based object counting method comprising:
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rasterizing a counting line in an image into counting line pixels; determining two points on a trajectory line included in the image as target pixels; determining, from the counting line pixels, corresponding pixels that correspond to the target pixels; determining whether the counting line intersects with the trajectory line based on the target pixels and the corresponding pixels; and determining a number of one or more trajectory lines including the trajectory line that intersect with the counting line as a number of objects that pass the counting line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An image-based object counting apparatus comprising one or more processors implementing:
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an index generator configured to rasterize a counting line in an image into counting line pixels and generate an index list including the counting line pixels; a target pixel determiner configured to determine two points on a trajectory line included in the image as target pixels; a corresponding pixel determiner configured to determine corresponding pixels that correspond to the target pixels from among the index list; an intersection determiner configured to determine whether the counting line intersects with the trajectory line based on the target pixels and the corresponding pixels; and an object counter configured to determine a number of one or more trajectory lines including the trajectory line that intersect with the counting line as a number of objects that pass the counting line. - View Dependent Claims (17, 18, 19, 20)
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Specification