Title:
画像処理装置、画像処理方法及び画像処理プログラム
Document Type and Number:
Japanese Patent JP7399000
Kind Code:
B2
Abstract:
To provide an image processing system that removes a shadow area of an object from a change area in an object recognition system using background subtraction processing and precisely performs an object recognition process using a change area of the object.SOLUTION: An image processing system 20 includes: light source position estimation means 231 that estimates a light source position from a polarization angle obtained for an image; change area extraction means 232 that extracts a change area from an input image; and shadow area detection means 234 that compares a reference surface light source position estimated from a background image with a change area light source position estimated from the change area of the input image and determines that a pixel shining from the change area light source position is a shadow area. Since a direction of a light source can be known from polarization information of a polarized image photographed in a photographic area of a rough surface, the shadow area in the change area can be distinguished from other parts, and accuracy of object recognition is improved.SELECTED DRAWING: Figure 1
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Inventors:
Ayuko Ota
Application Number:
JP2020055802A
Publication Date:
December 15, 2023
Filing Date:
March 26, 2020
Export Citation:
Assignee:
Secom Co., Ltd.
International Classes:
G06T7/174; G06T7/254
Domestic Patent References:
| JP2019022147A | ||||
| JP2019021189A |
Foreign References:
| WO2009019887A1 | ||||
| WO2018225164A1 |
Attorney, Agent or Firm:
Norimitsu Nishimura
Noriyuki Suzuki
Noriyuki Suzuki
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