MOTION VECTOR PREDICTION DEVICE AND COMPUTER PROGRAM

• Main Authors: MIYAZAWA TAKEHITO, MISORIZAKI AKINORI, HAYASE KAZUYA, SHIMIZU ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 15.11.2018
• 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 more accurately predict a direction and size of a motion vector without using depth information from video which is imaged by a moving camera.SOLUTION: A motion vector prediction device comprises: a prediction motion vector norm acquisition unit that acquires a prediction motion vector norm from a coded block; a prediction motion vector angle acquisition unit that acquires an angle of the prediction motion vector on the basis of information associated with the given angle; and a vector acquisition unit that acquires the prediction motion vector of a coding target block on the basis of the prediction motion vector norm and the angle of the prediction motion vector.SELECTED DRAWING: Figure 3 【課題】カメラが移動しながら撮影した映像から深度情報を用いずに、動きベクトルの向きと大きさをより精度良く予測すること。【解決手段】符号化済みブロックから予測動きベクトルノルムを取得する予測動きベクトルノルム取得部と、与えられた角度に関連する情報に基づいて、予測動きベクトルの角度を取得する予測動きベクトル角度取得部と、予測動きベクトルノルムと予測動きベクトルの角度とに基づいて、符号化対象ブロックの予測動きベクトルを取得するベクトル取得部と、を備える動きベクトル予測装置。【選択図】図３