FLUCTUATION PERCEPTION AMOUNT ESTIMATION DEVICE, DISCOMFORT DEGREE ESTIMATION DEVICE AND FLUCTUATION PERCEPTION AMOUNT ESTIMATION PROGRAM

• Main Authors: TADENUMA MAKOTO, MORITA HISAYA
• Format: Patent
• Language: English; Japanese
• Published: 08.06.2015
• 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 provide a fluctuation perception amount estimation device capable of estimating a fluctuation perception amount for a viewer to feel a luminance change that occurs in the vicinity of a boundary of a subject, as fluctuation.SOLUTION: A fluctuation perception amount estimation device 800 includes: a region luminance calculation part 810 for each resolution for calculating region luminance for each resolution that is luminance of a region to be one pixel in a plurality of stages of resolutions; fluctuation perception amount estimation parts 820A-820E for each resolution for estimating a fluctuation perception amount for each resolution that is a moving amount perceived as apparent fluctuation for each predetermined region regarding each of the plurality of stages of resolutions on the basis of the region luminance for each resolution; a horizontal moving amount maximum value detection part 830 for selecting the fluctuation perception amount for each resolution with maximum horizontal fluctuation energy within a unit time from among all the resolutions for each predetermined region; and a vertical moving amount maximum value detection part 840 for selecting the fluctuation perception amount for each resolution with maximum vertical fluctuation energy within the unit time from among all the resolutions for each predetermined region. 【課題】被写体の境界近傍において生じた輝度変化を視聴者が動揺として感じる動揺知覚量を推定することが可能な動揺知覚量推定装置を提供する。【解決手段】動揺知覚量推定装置８００は、複数段階の解像度において１画素となる領域の輝度である解像度別領域輝度を算出する解像度別領域輝度算出部８１０と、解像度別領域輝度に基づいて、複数段階の解像度のそれぞれに関して、所定領域ごとに見かけ上の動揺として知覚される移動量である解像度別動揺知覚量を推定する解像度別動揺知覚量推定部８２０Ａ〜８２０Ｅと、所定領域ごとに全ての前記解像度の中から単位時間中に左右方向の動揺エネルギーが最大となる解像度別動揺知覚量を選択する左右移動量最大値検出部８３０と、所定領域ごとに全ての前記解像度の中から単位時間中に上下方向の動揺エネルギーが最大となる解像度別動揺知覚量を選択する上下移動量最大値検出部８４０と、を備える。【選択図】図３