公开(公告)号：US20240275929A1

公开(公告)日：2024-08-15

申请号：US18644854

申请日：2024-04-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazune Hagino ,  Kazuaki Sakata

IPC: H04N9/31 ,  G06T7/70 ,  H04N17/02

CPC classification number: H04N9/3194 ,  G06T7/70 ,  H04N9/3147 ,  H04N9/317 ,  H04N9/3185 ,  G06T2207/10016 ,  H04N17/02

Abstract: A notification method includes: acquiring a first image captured at a first timing, the first image including a display area of a video displayed by a projection-type display device; acquiring a second image captured at a second timing, the second image including the display area; comparing first analysis data based on the first image with second analysis data based on the second image; determining, on the basis of a comparison result, whether or not a first deviation has occurred, the first deviation being a deviation of a display parameter related to display, and whether or not a second deviation has occurred, the second deviation being a deviation of a photographing parameter related to photographing; and notifying a user of deviation information indicating a deviation determined to have occurred among the first deviation and the second deviation.

公开(公告)号：US20240259539A1

公开(公告)日：2024-08-01

申请号：US18632997

申请日：2024-04-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuaki Sakata ,  Kazune Hagino

IPC: H04N9/31 ,  G06T7/73

CPC classification number: H04N9/3194 ,  G06T7/74 ,  H04N9/3147 ,  H04N9/3185 ,  G06T2207/20104 ,  G06T2207/30244

Abstract: A calibration method includes: acquiring a first image captured by a camera at a first timing, the first image showing an area on which an image is projected by a projection-type display device; detecting a plurality of feature points in the acquired first image; superimposing the plurality of detected feature points on the first image and displaying the superimposed feature points on a monitor; receiving a user's operation of selecting a part of the plurality of detected feature points as a plurality of reference points; acquiring a second image captured by the camera at a second timing after the first timing, the second image showing the area; and detecting a deviation of a relative position between the camera and the area by using the plurality of selected reference points and the acquired second image.