REAL-TIME 3D HUMAN OBJECT RECONSTRUCTION APPARATUS AND METHOD BASED ON MONOCULAR COLOR IMAGE

    公开(公告)号:US20250104344A1

    公开(公告)日:2025-03-27

    申请号:US18573736

    申请日:2022-12-13

    Abstract: There are provided an apparatus and a method for reconstructing a 3D human object in real time based on a monocular color image. A 3D human object reconstruction apparatus according to an embodiment extracts a pixel-aligned feature from a monocular image, extracts a ray-invariant feature from the pixel-aligned feature, generates encoded position information by encoding position information of a point, predicts a SD of a point from the ray-invariant feature and the encoded position information which are extracted, and reconstructs a 3D human object by using the predicted SD. Accordingly, the ray-invariant feature extracted from the pixel-aligned feature, and the encoded position information are used, so that an amount of computation for predicting SDs of points of a 3D space can be noticeably reduced and a speed can be remarkably enhanced.

    Cognitive experiment method for periphery region quality change for parameter determination of foveated hologram

    公开(公告)号:US12249032B2

    公开(公告)日:2025-03-11

    申请号:US18013317

    申请日:2021-12-15

    Abstract: Provided is a cognitive experiment method for change in periphery region image quality for parameter determination of a foveated hologram. According to an embodiment, a cognitive experiment method for determining foveated image parameters includes: generating a foveated image which includes a foveal region and a periphery region while reducing image quality regarding the periphery region; displaying the generated foveated image; receiving an input of a response to image quality of the periphery region from a subject; and collecting information regarding appropriate image quality of the periphery region, based on the response inputted by the subject. Accordingly, in applying a foveated hologram generation algorithm for real-time reproduction, various parameters such as a boundary between a foveal region image and a periphery region image in a foveated hologram, and a degree of quality degradation of the periphery region image may be appropriately determined through a cognitive experiment.

    MULTI-CHANNEL SOFT-SENSOR-BASED INTERFACE DEVICE, AND OPERATING METHOD

    公开(公告)号:US20250060819A1

    公开(公告)日:2025-02-20

    申请号:US18937675

    申请日:2024-11-05

    Inventor: Yun Jae WON

    Abstract: Proposed is a multi-channel soft-sensor-based interface device and an operating method therefor. The glove-type multi-channel soft-sensor-based interface device can recognize the degree of flexibility of finger joints. The device may include a sensing module which includes a plurality of strain sensors and which collects strain sensing signals of the plurality of strain sensors. The device may also include a switching unit configured to select any one of the strain sensing signals of the plurality of strain sensors. The device may further include an amplification module configured to amplify the strain sensing signal selected by the switching unit. The device may further include an analog-to-digital (A/D) converter configured to convert the amplified sensing signal into a digital signal.

    HOLOGRAM GENERATION AND STREAMING METHOD AND SYSTEM USING MULTI-COMPUTERS

    公开(公告)号:US20250029282A1

    公开(公告)日:2025-01-23

    申请号:US18713730

    申请日:2021-12-06

    Abstract: A hologram generation and streaming method and system using multi-PCs are provided. A hologram streaming service system according to an embodiment of the present invention comprises: a hologram generation server for generating a hologram streaming image by using multiple computers; and a hologram player for playing the hologram streaming image generated in the hologram generating server. Therefore, distributed processing of the multi-PCs is used to generate a hologram at high speed so that a service can be streamed without delay in real time even for a high-resolution hologram.

    3D printing slicing method for solving tolerance problem

    公开(公告)号:US12202206B2

    公开(公告)日:2025-01-21

    申请号:US17623112

    申请日:2021-11-03

    Abstract: Provided are a method and a system for solving a tolerance problem which may occur in a slicing quantization (staircase effect) process of 3D printing which slices a 3D model and laminates layers one by one. According to an embodiment of the present disclosure, a 3D model slicing method includes the steps of: receiving, by a 3D model slicing system, an input of data of a 3D model to 3D print; examining, by the 3D model slicing system, a dimension of a layer thickness of the inputted 3D model; correcting, by the 3D model slicing system, a size of a layer for slicing, based on a result of the examining; and slicing, by the 3D model slicing system, the corrected 3D model. Accordingly, by preserving a dimension within a layer thickness, a problem that a concavo-convex portion is lost in a slicing quantization process of 3D printing according to a slicing position within a layer thickness, and a tolerance occurs is solved.

    Apparatus and method for providing split-rendered virtual reality image

    公开(公告)号:US12198279B2

    公开(公告)日:2025-01-14

    申请号:US18056144

    申请日:2022-11-16

    Abstract: An edge server for providing a virtual reality (VR) image is proposed. The server may include a rendering synchronization unit synchronizing a visual field and a margin with a virtual reality device. The server may also include a rendering unit generating a rendered image by rendering a visual field area corresponding to the visual field and a margin area corresponding to the margin based on a rotation center in an entire virtual reality image. The server may further include an encoding unit generating a reduced margin area by dividing a resolution of the margin area by a scaling factor, and encoding the visual field area and the reduced margin area to generate a split virtual reality image including the encoded visual field area and the encoded reduced margin area. The server may further include a streaming transmission unit transmitting the split virtual reality image to the virtual reality device.

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