Divide and Count: Generic Object Counting by Image Divisions

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Abstract

We propose a general object counting method that does not use any prior category information. We learn from local image divisions to predict global image-level counts without using any form of local annotations. Our method separates the input image into a set of image divisions - each fully covering the image. Each image division is composed of a set of region proposals or uniform grid cells. Our approach learns in an end-to-end deep learning architecture to predict global image-level counts from local image divisions. The method incorporates a counting layer which predicts object counts in the complete image, by enforcing consistency in counts when dealing with overlapping image regions. Our counting layer is based on the inclusion-exclusion principle from set theory. We analyze the individual building blocks of our proposed approach on Pascal-VOC2007 and evaluate our method on the MS-COCO large scale generic object data set as well as on three class-specific counting data sets: UCSD pedestrian data set, and CARPK, and PUCPR+ car data sets.

Original languageEnglish
Article number8488575
Pages (from-to)1035-1044
Number of pages10
JournalIEEE Transactions on Image Processing
Volume28
Issue number2
DOIs
Publication statusPublished - 2019

Keywords

  • counting with region proposals
  • fully convolutional networks
  • Generic-class object counting
  • inclusion-exclusion principle
  • regression

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