相关实验视频

Updated: Jul 6, 2025

A Swin Transformer-Based Model for Thyroid Nodule Detection in Ultrasound Images
04:23

A Swin Transformer-Based Model for Thyroid Nodule Detection in Ultrasound Images

Published on: April 21, 2023

1.9K

分因分辨视觉变压器:用局部窗口成本建模远程依赖性

Haolin Qin, Daquan Zhou, Tingfa Xu

    IEEE transactions on neural networks and learning systems
    |December 28, 2023
    PubMed
    概括

    新的因子化视觉转换器 (FaViT) 提供了一种新的自我注意力机制,以提高计算机视觉中的计算效率和全球依赖性建模. 与Swin变压器等现有模型相比,这种方法提高了性能和稳定性.

    更多相关视频

    Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications03:31

    Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

    Published on: December 15, 2023

    557
    Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique04:48

    Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique

    Published on: July 5, 2024

    405

    相关概念视频

    Transformers in Distribution System01:27

    Transformers in Distribution System

    Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
    Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
    103
    Transformers with Off-Nominal Turns Ratios01:25

    Transformers with Off-Nominal Turns Ratios

    In scenarios involving parallel transformers with disparate ratings, developing per-unit models requires accommodating off-nominal turns ratios. This situation arises when the selected base voltages are not proportional to the transformer’s voltage ratings. Consider a transformer where the rated voltages are related by the term a. If the chosen voltage bases satisfy a relationship involving term b, term c is defined as the ratio of these bases. This ratio is then substituted into the...
    157
    Energy Losses in Transformers01:21

    Energy Losses in Transformers

    In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
    There are four main reasons for energy losses in transformers.
    The first cause can be  the high resistance of the...
    876
    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...
    154
    Types Of Transformers01:16

    Types Of Transformers

    Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
    If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
    However, if this ratio is less than one, the transformer is said to be a step-down...
    978
    Equivalent Circuits for Practical Transformers01:28

    Equivalent Circuits for Practical Transformers

    The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
    In a practical transformer, each winding exhibits resistance and leakage reactance. The...
    434