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Related Concept Videos

Gauss's Law01:07

Gauss's Law

If a closed surface does not have any charge inside where an electric field line can terminate, then the electric field line entering the surface at one point must necessarily exit at some other point of the surface. Therefore, if a closed surface does not have any charges inside the enclosed volume, then the electric flux through the surface is zero. What happens to the electric flux if there are some charges inside the enclosed volume? Gauss's law gives a quantitative answer to this question.
Reducing Line Loss01:18

Reducing Line Loss

In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
Vector Components in the Cartesian Coordinate System01:29

Vector Components in the Cartesian Coordinate System

Vectors are usually described in terms of their components in a coordinate system. Even in everyday life, we naturally invoke the concept of orthogonal projections in a rectangular coordinate system. For example, if someone gives you directions for a particular location, you will be told to go a few km in a direction like east, west, north, or south, along with the angle in which you are supposed to move. In a rectangular (Cartesian) xy-coordinate system in a plane, a point in a plane is...
Gauss's Law: Planar Symmetry01:27

Gauss's Law: Planar Symmetry

A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
Scalar and Vector Triple Products01:06

Scalar and Vector Triple Products

Two vectors can be multiplied using a scalar product or a vector product. The resultant of a scalar product is scalar, while with vector products, the resultant is a vector. These rules of the scalar or vector product between two vectors can be applied to multiple vectors to obtain meaningful combinations. The scalar triple product is the dot product of a vector with the cross product of two vectors.
The scalar triple product is the dot product of a vector with the cross product of two vectors.
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Computed Tomography

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Related Experiment Video

Updated: May 31, 2026

Photorealistic Learned Landscapes for Augmented Reality
06:54

Photorealistic Learned Landscapes for Augmented Reality

Published on: June 27, 2025

Improving 3D Gaussian Splatting Compression by Scene-Adaptive Lattice Vector Quantization.

Hao Xu, Xiaolin Wu, Xi Zhang

    IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
    |May 29, 2026
    PubMed
    Summary
    This summary is machine-generated.

    Replacing uniform scalar quantization with scene-adaptive lattice vector quantization significantly improves 3D Gaussian Splatting (3DGS) compression. This method enhances rate-distortion efficiency and model flexibility with minimal overhead.

    Related Experiment Videos

    Last Updated: May 31, 2026

    Photorealistic Learned Landscapes for Augmented Reality
    06:54

    Photorealistic Learned Landscapes for Augmented Reality

    Published on: June 27, 2025

    Area of Science:

    • Computer Vision
    • Computer Graphics
    • Data Compression

    Background:

    • 3D Gaussian Splatting (3DGS) offers high-quality, real-time rendering but generates large datasets.
    • Current 3DGS compression methods often use uniform scalar quantization (USQ), limiting performance.
    • More advanced quantization techniques could enhance 3DGS compression efficiency.

    Purpose of the Study:

    • To investigate the effectiveness of lattice vector quantization (LVQ) for 3DGS data compression.
    • To develop a scene-adaptive LVQ (SALVQ) method to improve compression performance and adaptability.
    • To assess the integration feasibility and benefits of SALVQ in existing 3DGS compression frameworks.

    Main Methods:

    • Replaced uniform scalar quantization (USQ) with lattice vector quantization (LVQ) in 3DGS compression.
    • Optimized lattice basis vectors for each scene to create scene-adaptive LVQ (SALVQ).
    • Implemented dynamic lattice density adjustment via scaling of basis vectors for multi-bitrate support.

    Main Results:

    • SALVQ demonstrated improved rate-distortion (R-D) efficiency compared to USQ-based methods.
    • The proposed SALVQ method integrates seamlessly into existing 3DGS compression architectures with minimal overhead.
    • Dynamic lattice scaling enabled a single model to support multiple bit rates, reducing training time and memory usage.

    Conclusions:

    • Scene-adaptive lattice vector quantization (SALVQ) offers a superior alternative to USQ for 3DGS compression.
    • SALVQ enhances compression efficiency and flexibility without significant computational cost.
    • This approach paves the way for more efficient and adaptable 3D Gaussian Splatting model compression.