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WiMi Creates Digital Image Processing Software Based on Visual saliency and Channel Attention Mechanism


News provided by

WiMi Hologram Cloud Inc.

Mar 13, 2023, 08:00 ET

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BEIJING, March 13, 2023 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR") Technology provider dedicated to algorithmic research in imaging and image processing, today announced the successful development of a holographic digital image processing software system based on visual saliency and channel attention mechanisms. The software can improve the image processing performance of intelligent holographic systems and has been successfully applied in several fields or industries. For example, face recognition, AR/VR, 3D reconstruction; smart healthcare and smart cities, medical devices, industrial inspection; smart agriculture, intelligent robots, machine vision, and intelligent security equipment; and the development of automatic driving.

The attention mechanism is a data processing method in machine learning, which is widely used in different types of machine learning tasks, such as natural language processing, image recognition, and speech recognition. Channel attention mechanisms and visual saliency can effectively improve the efficiency of image processing. The channel attention mechanism uses known features to select the most appropriate channel to extract information of interest during image processing. Visual saliency analyses known features and extracts salient regions (i.e., critical regions of human interest) in an image through intelligent algorithms that simulate human optical characteristics.

Attention mechanism can be beneficial in many tasks such as image classification, target detection, semantic segmentation, video understanding, face recognition, person re-identification, action recognition, a small amount of display learning, medical image processing, image generation, pose estimation, super-resolution, 3D vision, multi-modal tasks, and self-supervised learning. Attention mechanisms are essentially similar to how people observe things in the outside world. Generally speaking, when people observe things in the outside world, they first pay more attention to certain crucial local information that they are more inclined to observe and then combine the information from different regions to form an overall impression of what is being observed. The attention mechanism shifts the computer's attention to the essential parts.

The channel attention mechanism is usually based on the SE Block model, a channel-based attention model that models the importance of each feature channel and then enhances or suppresses different channels for different tasks. The channel attention mechanism in computer vision learns different weights for each channel. The weights are the same in the plane dimension. So channel domain-based attention is usually a direct global average pooling of information within a channel while ignoring local information within each channel.

After convolution, GAP (global average pooling) is performed by the squeeze module to compress the spatial dimension of the features, i.e., each two-dimensional feature map becomes an actual number, and the number of feature channels remains unchanged. The Excitation module then uses a two-layer hourglass-type structure (through dimensionality reduction and raising) to implement the generation of weights for each feature channel using a fully connected layer and Sigmoid function. The channel weights are learned to show the correlation between the modeled feature channels. Finally, the results of the obtained weights are multiplied with the original feature map to present the display results. Applying the operational mechanism of the model to several benchmark models yields more significant performance gains with a slight increase in computational effort. As a general design idea, it can be used for any existing network and has strong practical implications.

The channel attention mechanism can improve system performance by appropriately weighting features according to the importance of the input and simulating human vision for practical analysis and understanding of complex scenes. The attention mechanism can be operated in a variety of ways. WiMi's R&D team is also conducting in-depth research in this area to improve the ability of holographic image processing systems to capture global information of holograms, improve image processing accuracy, increase computational efficiency, and reduce power consumption.

About WIMI Hologram Cloud

WIMI Hologram Cloud, Inc. (NASDAQ:WIMI), whose commercial operations began in 2015, is a holographic cloud comprehensive technical solution provider that focuses on professional areas including holographic AR automotive HUD software, 3D holographic pulse LiDAR, head-mounted light field holographic equipment, holographic semiconductor, holographic cloud software, holographic car navigation and others. Its services and holographic AR technologies include holographic AR automotive application, 3D holographic pulse LiDAR technology, holographic vision semiconductor technology, holographic software development, holographic AR advertising technology, holographic AR entertainment technology, holographic ARSDK payment, interactive holographic communication and other holographic AR technologies.

Safe Harbor Statements

This press release contains "forward-looking statements" within the Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," and similar statements. Statements that are not historical facts, including statements about the Company's beliefs and expectations, are forward-looking statements. Among other things, the business outlook and quotations from management in this press release and the Company's strategic and operational plans contain forward−looking statements. The Company may also make written or oral forward−looking statements in its periodic reports to the US Securities and Exchange Commission ("SEC") on Forms 20−F and 6−K, in its annual report to shareholders, in press releases, and other written materials, and in oral statements made by its officers, directors or employees to third parties. Forward-looking statements involve inherent risks and uncertainties. Several factors could cause actual results to differ materially from those contained in any forward−looking statement, including but not limited to the following: the Company's goals and strategies; the Company's future business development, financial condition, and results of operations; the expected growth of the AR holographic industry; and the Company's expectations regarding demand for and market acceptance of its products and services.

Further information regarding these and other risks is included in the Company's annual report on Form 20-F and the current report on Form 6-K and other documents filed with the SEC. All information provided in this press release is as of the date of this press release. The Company does not undertake any obligation to update any forward-looking statement, except as required under applicable laws.

SOURCE WiMi Hologram Cloud Inc.

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