Color Coatings with Two-Layer Thin-Film Interference Filter

    公开(公告)号:US20250085463A1

    公开(公告)日:2025-03-13

    申请号:US18523605

    申请日:2023-11-29

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with conductive structures such as conductive housing structures. A visible-light-reflecting coating may be formed on the conductive structures. The coating may have adhesion and transition layers, an opaque coloring layer on the adhesion and transition layers, and a two-layer thin-film interference filter on the opaque coloring layer. The two-layer thin-film interference filter may an uppermost diamond-like carbon (DLC) or CrSiCN layer and a lowermost SiCrCN layer. The coating may exhibit a dark blue or black color that has a relatively uniform visual response even when the underlying conductive structures have a three-dimensional shape.

    Adaptive Quantization Matrix for Extended Reality Video Encoding

    公开(公告)号:US20230067584A1

    公开(公告)日:2023-03-02

    申请号:US17821981

    申请日:2022-08-24

    Applicant: Apple Inc.

    Inventor: Yi Zhou

    Abstract: Encoding an extended-reality (XR) video frame may include obtaining an XR video frame comprising a background image and a virtual object; obtaining, from an image renderer, a first region of the background image over which the virtual object is overlaid; dividing the XR video frame into a virtual region and a real region, wherein the virtual region comprises the first region of the background image and the virtual object and the real region comprises a second region of the background image; determining, for the virtual region, a corresponding first quantization parameter based on an initial quantization parameter associated with virtual regions; determining, for the real region, a corresponding second quantization parameter based on an initial quantization parameter associated with real regions; and encoding the virtual region based on the corresponding first quantization parameter and the real region based on the corresponding second quantization parameter.

    Adaptive quantization matrix for extended reality video encoding

    公开(公告)号:US12184869B2

    公开(公告)日:2024-12-31

    申请号:US17821981

    申请日:2022-08-24

    Applicant: Apple Inc.

    Inventor: Yi Zhou

    Abstract: Encoding an extended-reality (XR) video frame may include obtaining an XR video frame comprising a background image and a virtual object; obtaining, from an image renderer, a first region of the background image over which the virtual object is overlaid; dividing the XR video frame into a virtual region and a real region, wherein the virtual region comprises the first region of the background image and the virtual object and the real region comprises a second region of the background image; determining, for the virtual region, a corresponding first quantization parameter based on an initial quantization parameter associated with virtual regions; determining, for the real region, a corresponding second quantization parameter based on an initial quantization parameter associated with real regions; and encoding the virtual region based on the corresponding first quantization parameter and the real region based on the corresponding second quantization parameter.

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