Invention Grant
- Patent Title: Method and device for coding a digital hologram sequence
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Application No.: US17624748Application Date: 2020-06-24
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Publication No.: US12132933B2Publication Date: 2024-10-29
- Inventor: Patrick Gioia , Antonin Gilles
- Applicant: FONDATION B-COM
- Applicant Address: FR Cesson-Sévigné
- Assignee: FONDATION B-COM
- Current Assignee: FONDATION B-COM
- Current Assignee Address: FR Cesson-Sévigné
- Agency: NIXON & VANDERHYE
- Priority: FR 07555 2019.07.05
- International Application: PCT/EP2020/067744 2020.06.24
- International Announcement: WO2021/004797A 2021.01.14
- Date entered country: 2022-01-04
- Main IPC: H04N19/597
- IPC: H04N19/597 ; G03H1/08 ; H04N19/119 ; H04N19/137 ; H04N19/18 ; H04N19/63

Abstract:
Disclosed is a method and a device for coding a sequence including first and second digital holograms representing respective scenes, the digital holograms being represented by a set of wavelets each defined by a multiplet of coordinates in multidimensional space. The first and second holograms are represented by first and second coefficients respectively associated with wavelets. The coding method includes the following steps: for each second coefficient, determining a remainder by a difference between the second coefficient concerned, associated with a first wavelet defined by a given multiplet, and the first coefficient) associated with a second wavelet defined by a multiplet having as its image the multiplet by a transform in the multidimenisonal space; coding the determined remainders. The transform is determined by analysis of variation between the first scene represented by the first digital hologram and the second scene represented by the second digital hologram.
Public/Granted literature
- US20220272380A1 METHOD AND DEVICE FOR CODING A DIGITAL HOLOGRAM SEQUENCE Public/Granted day:2022-08-25
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