公开(公告)号：US11012630B1

公开(公告)日：2021-05-18

申请号：US17031126

申请日：2020-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshimitsu Noguchi ,  Tomokuni Iijima ,  Katsuyuki Morita ,  Shigeru Furumiya

IPC: H04N5/235

Abstract: An image processor includes: an image sensor which outputs a short exposure image and a long exposure image; a sensor controller which controls first and second exposure sensitivities; a motion blending ratio calculator which calculates a motion blending ratio based on a motion amount of a subject; a motion-adapted image synthesizer which generates a motion-adapted image based on the motion blending ratio; and an HDR image synthesizer which synthesizes the motion-adapted image and the short exposure image, to generate an HDR image. The sensor controller controls the first exposure sensitivity: so that the first exposure time changes from increasing to constant and the first sensor gain changes from constant to increasing, when the brightness of the subject decreases from a first subject brightness; and so that the first exposure time changes to increasing and the first sensor gain changes to constant, when the brightness decreases from a second subject brightness.

公开(公告)号：US10970827B2

公开(公告)日：2021-04-06

申请号：US16593593

申请日：2019-10-04

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tomokuni Iijima ,  Nobutoshi Fujinami ,  Shigeru Furumiya

IPC: G06T5/00 ,  G06T7/90 ,  G06T5/50 ,  G06T11/00

Abstract: An image processor includes: an image sensor outputting a short exposure image and a long exposure image; a sensor controller that, when brightness of the subject changes, controls first exposure sensitivity to cause the short exposure image to have first brightness and controls second exposure sensitivity to cause the long exposure image to have second brightness; a motion blending ratio calculator calculating a motion blending ratio based on a motion amount of the subject; a motion-adapted image synthesizer generating a motion-adapted image by synthesizing a corrected short exposure image and the long exposure image based on the motion blending ratio; and an HDR image synthesizer generating an HDR image by synthesizing the motion-adapted image and the short exposure image together. When the subject becomes darker, the sensor controller controls the first and second exposure sensitivities to cause the first sensor gain to be at most the second sensor gain.