IMAGE BLUR CORRECTION APPARATUS, IMAGING APPARATUS, AND IMAGE BLUR CORRECTION METHOD

• Main Author: TSUCHIYA HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 24.01.2019
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To acquire a stable panning image, and to prevent operativity of a photographer from being impaired.SOLUTION: An image blur correction apparatus includes an angular velocity detection section which detects an angular velocity, a first panning detection section which detects first panning based on the angular velocity, an LPF which subjects the angular velocity to LPF processing, a second panning detection section which detects a second panning whose panning velocity is slower than that of the first panning based on the processing result of the LPF, an HPF which subjects the angular velocity to HPF processing, a calculation section which calculates an image blur correction amount based on a detection result of the first panning detection section or the second panning detection section and a processing result of the HPF, and a drive instruction section which drives the image blur correction mechanism based on the image blur correction amount; and changes one or both of characteristics of the HPF and the calculation section, when the first panning is detected by the first panning detection section or the second panning is detected by the second panning detection section.SELECTED DRAWING: Figure 2 【課題】安定したパンニング映像を取得して撮影者の操作性を損なわないようにする。【解決手段】像ぶれ補正装置は、角速度を検出する角速度検出部と、角速度に基づいて第１パンニングを検出する第１パンニング検出部と、角速度に対してＬＰＦ処理を行うＬＰＦと、ＬＰＦの処理結果に基づいて、第１パンニングよりもパンニング速度が遅い第２パンニングを検出する第２パンニング検出部と、角速度に対してＨＰＦ処理を行うＨＰＦと、第１パンニング検出部又は第２パンニング検出部の検出結果とＨＰＦの処理結果とに基づいて像ぶれ補正量を算出する算出部と、像ぶれ補正量に基づいて像ぶれ補正機構を駆動させる駆動指示部とを備え、第１パンニング検出部により第１パンニングが検出された場合、又は、第２パンニング検出部により第２パンニングが検出された場合は、ＨＰＦ及び算出部の一方又は両方の特性を変更する。【選択図】図２