SHAKING PERCEPTION QUANTITY ESTIMATION DEVICE AND SHAKING PERCEPTION QUANTITY ESTIMATION PROGRAM

• Main Author: TADENUMA MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 16.08.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To estimate a shaking quantity, i.e. a shaking perception quantity that a viewer who observed shaking video perceives with high precision.SOLUTION: A shaking perception quantity estimation device 1 comprises: a motion-vector-by-area detection part 10 which detects a motion vector; a motion area number imparting part 40 which imparts a motion area number; a horizontal/vertical ratio calculation part 50 which obtains a horizontal/vertical ratio of a motion area; a horizontal/vertical component correction part 60 which corrects horizontal and vertical components of a moving vector with the horizontal/vertical ratio; a spatial frequency energy calculation part 80 which obtains corrected spatial frequency energy; an inter-motion-area correlation value calculation part 90 which obtains an inter-motion-area correlation value; an inter-motion-area-internal-border correlation value calculation part 100 which obtains an inter-motion-area-internal-border correlation value; a short-time-shaking-energy-by-motion-area calculation part 110 which obtains short-time shaking energy for each motion area; and an in-time-window total shaking energy calculation part 120 which obtains total shaking energy in a time window.SELECTED DRAWING: Figure 2 【課題】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、動き領域の水平・垂直比を得る水平・垂直比算出部５０と、水平・垂直比で動きベクトルの水平・垂直成分を補正する水平・垂直成分補正部６０と、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、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