METHOD FOR UNBIASED ESTIMATION OF THE TOTAL AMOUNT OF OBJECTS BASED ON NON UNIFORM SAMPLING WITH PROBABILITY OBTAINED BY USING IMAGE ANALYSIS
First Claim
1. Method for unbiased estimation of structural content, the method comprising the steps ofproviding an image with discernible image analysis features indicating the objects,by image analysis partitioning the image into a plurality of sectors and sampling a subset of the plurality of sectors, wherein the number of the sampled sectors is substantially less than the number of the plurality of sectors,determining the structural content of objects for each of the sampled sectors, andcalculating an unbiased estimation for a total structural content of objects in the image based on the result from the determining of the structural content of objects in the sampled sectors,the sampling of the subset of sectors is performed in accordance with a random sampling criterionwhereinthe sampling is performed in accordance with a random sampling criterion using a non-uniform probability which is positively related to the likelihood of object-presence in a sector
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Abstract
An image is partitioned into sectors, and a number of sectors are selected randomly but with a probability of selection which is proportional with the likelihood of objects in the sector. For the selected sectors, the objects are measured or counted and used for estimation of the amount of objects in the entire image.
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Citations
22 Claims
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1. Method for unbiased estimation of structural content, the method comprising the steps of
providing an image with discernible image analysis features indicating the objects, by image analysis partitioning the image into a plurality of sectors and sampling a subset of the plurality of sectors, wherein the number of the sampled sectors is substantially less than the number of the plurality of sectors, determining the structural content of objects for each of the sampled sectors, and calculating an unbiased estimation for a total structural content of objects in the image based on the result from the determining of the structural content of objects in the sampled sectors, the sampling of the subset of sectors is performed in accordance with a random sampling criterion wherein the sampling is performed in accordance with a random sampling criterion using a non-uniform probability which is positively related to the likelihood of object-presence in a sector
Specification