PROJECTION MAPPING DEVICE, DELAY COMPENSATION DEVICE, DELAY COMPENSATION METHOD, AND DELAY COMPENSATION PROGRAM

• Main Authors: HASHIMOTO NAOKI, SAKAMAKI SHOHEI
• Format: Patent
• Language: English; Japanese
• Published: 22.08.2016
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS

PROBLEM TO BE SOLVED: To project a projected image on a moving object without misalignment in projection mapping.SOLUTION: A projection mapping device detects a target object, and projects the projected image on the target object. The projection mapping device includes an optical flow acquisition unit which acquires, from a captured image of the target object, a motion vector of a pixel unit per unit time of the captured image of the target object; a motion prediction unit which acquires, on the basis of delay time from the detection until the projection, motion in the delay time of the pixel unit from the motion vector; and a compensation image generation unit which deforms the projected image on the basis of the motion.SELECTED DRAWING: Figure 4 【課題】プロジェクションマッピングにおいて、動いている物体に映像をズレなく投影する。【解決手段】対象物体を検出し、当該対象物体に投影映像を投影するプロジェクションマッピング装置であって、前記対象物体を撮影した撮影映像から、前記対象物体の前記撮影映像上のピクセル単位の単位時間あたりの動きベクトルを求めるオプティカルフロー取得部と、前記検出から前記投影までの遅延時間に基づき、前記動きベクトルから前記撮影映像上のピクセル単位の前記遅延時間分の動きを求める動き予測部と、前記動きに基づき、前記投影映像に変形を加える補償映像生成部とを備える。【選択図】図４