OSCILLATION COGNITION AMOUNT ESTIMATION DEVICE AND OSCILLATION COGNITION AMOUNT ESTIMATION PROGRAM

• Main Author: TADENUMA MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

To estimate an oscillation amount that a viewer who watched an oscillation video at various different watch distances including a wide-field watch condition recognizes, namely, an oscillation cognition amount with high accuracy.SOLUTION: An oscillation cognition amount estimation device 1 comprises an area specific motion vector detection par 10 detecting a motion vector, a motion area number addition part 40 adding a motion area number, a spatial frequency energy calculation part 80 obtaining a corrected spatial frequency energy in response to a watch distance, a correlation value between motion areas calculation part 90 obtaining a correlation value between motion areas, a correlation value between motion area internal boundaries calculation part 100 obtaining a correlation value between motion area internal boundaries, a motion area specific short time oscillation energy calculation part 110 obtaining a short time oscillation energy for each motion area in response to the watch distance, and an in time window total oscillation energy calculation part 120 obtaining a total oscillation energy in a time window.SELECTED DRAWING: Figure 2 【課題】広視野観視条件を含む様々な異なる観視距離において、動揺映像を観視した視聴者が認知する動揺量、すなわち動揺認知量を高精度に推定する。【解決手段】動揺認知量推定装置１は、動きベクトルを検出する領域別動きベクトル検出部１０と、動き領域番号を付与する動き領域番号付与部４０と、観視距離に応じて補正済み空間周波数エネルギーを得る空間周波数エネルギー算出部８０と、動き領域間相関値を得る動き領域間相関値算出部９０と、動き領域内部境界間相関値を得る動き領域内部境界間相関値算出部１００と、観視距離に応じて動き領域ごとに短時間動揺エネルギーを得る動き領域別短時間動揺エネルギー算出部１１０と、時間窓内の総動揺エネルギーを得る時間窓内総動揺エネルギー算出部１２０と、を備える。【選択図】図２