公开(公告)号：US20210089827A1

公开(公告)日：2021-03-25

申请号：US16971635

申请日：2019-02-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kaori KUMAGAI ,  Yukito WATANABE ,  Jun SHIMAMURA ,  Tetsuya KINEBUCHI

IPC: G06K9/62 ,  G06K9/20 ,  G06N3/04 ,  G06N3/08

Abstract: It is made possible that features in an input image used by a CNN to identify the input image are efficiently represented. With respect to a plurality of filters used on a specific layer of an CNN, an agreement rate indicating a degree of relevance of a feature map output from a filter of interest when a plurality of images in which regions representing a plurality of concepts defined in advance are already obtained are used as inputs, with a region representing a concept is calculated for each concept; an integration map in which feature maps are integrated by using the agreement rates with the concept of the filter outputting the feature maps is calculated for each concept and for each of a plurality of clusters, based on the agreement rates and a result of classification of feature maps output from the plurality of filters when an input image is input into the CNN, into each cluster based on values in the feature maps; and feature representation visualization images visualized by using threshold values that are based on values in the integration maps and information on the respective concepts corresponding the integration maps are output in pairs.

公开(公告)号：US20200378898A1

公开(公告)日：2020-12-03

申请号：US16970876

申请日：2019-02-06

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shunsuke TSUKATANI ,  Shingo ANDO ,  Tetsuya KINEBUCHI

IPC: G01N21/88 ,  G01N21/55 ,  G01N21/31 ,  G06N20/00 ,  G06N5/04

Abstract: Even under a different light source, such as outdoor light source, diagnosis of surface states of a diagnosis target object is performed with a high accuracy without measuring spectral distribution information about the light source at the time of measuring a diagnosis target object. A spectral reflectance calculation section (22) calculates, based on pieces of spectral distribution information measured for different surface states of a diagnosis target object and spectral distribution information measured for a reference object with an already-known reflectance, spectral reflectances of the surface states; a reference setting section (23) sets, from a spectral reflectance of a surface state showing a deteriorated state, among the spectral reflectances of the surface states, a wavelength range within which reflectances at the same wavelength are within a predetermined range and the reflectance as a reference wavelength range and a reference reflectance; and a dictionary registration section (24) registers the spectral reflectances of the surface states, the reference wavelength range, the reference reflectance and pieces of spectral distribution information about a plurality of light sources with a dictionary (30).