The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
May. 21, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A camera control section () fixes among parameters for photographing which are set in a camera (), another parameter than exposure time, and causes the camera () to photograph a photographing target area while changing the exposure time. An image acquisition section () acquires N (N≥3) images of the photographing target area acquired by photographing by the camera (). A model generation section () extracts for each pixel position, pixel values of a same pixel position from the N images, and generates a model indicating for each pixel position, a relationship between exposure times and pixel values, based on the extracted pixel values of the same pixel position and an exposure time at a time of photographing of each of the N images. A luminance value calculation section () calculates a luminance value for each pixel position, using the generated model and a luminance coefficient. A luminance distribution generation section () generates a luminance distribution of the photographing target area, using the luminance value of each pixel position.