ディジタルホログラム信号処理装置およびディジタルホログラム撮像再生装置

• Format: Patent
• Language: Japanese
• Published: 07.11.2024
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHOTOGRAPHY; PHYSICS; TESTING

To correctly obtain a feeling of depth such as the depth position, depth order, etc., of a subject and to compose an image of the subject together with an image picked up with a normal camera.SOLUTION: A digital hologram signal processing device comprises: in-focus/depth position information acquisition means 18A which acquires an in-focus image of a subject and depth position information on the in-focus image from a recomposed image of a digital hologram; reference image acquisition means 18B which adds respective obtained in-focus images to acquire a reference image B through computation for specifying an in-region in-focus image set at a desired depth position in a depth-of-field region; defocus image group acquisition means 18C which acquires a defocus image group Dd through computation for specifying an out-region in-focus image arranged at the desired depth position outside the depth-of-field region; and reference image/defocus image group addition means 18D which adds the obtained reference image B and the obtained defocus image group Dd to each other to obtain an incoherent response image.SELECTED DRAWING: Figure 4