With the rapid development of computer technology, network technology and multimedia technology, multimedia data is increasing exponentially. As an important part of video multimedia data, its structure is complex and...
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Recent technological advances in Virtual reality (VR) and Augmented reality (AR) enable users to experience a high-quality virtual world. Using VR to experience the virtual world, the user's entire view becomes th...
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ISBN:
(纸本)9798350376975;9798350376968
Recent technological advances in Virtual reality (VR) and Augmented reality (AR) enable users to experience a high-quality virtual world. Using VR to experience the virtual world, the user's entire view becomes the virtual world, and the user's physical movement is generally limited because the user cannot see the surrounding situation in the real world. Using AR to experience the virtual world, we generally use special sensors such as LiDAR to detect the real space and superimpose the virtual world on the real space. However, it is difficult for devices without such special sensors to detect real space and superimpose a virtual world at an appropriate position. This study proposes two methods for replacing the background: a method using depth estimation and a method using semantic segmentation. This study also confirmed that the system can be used with sufficient removal accuracy and response time by using appropriate image size for the environment and that a safe and highly immersive virtual world experience can be achieved.
Nowadays fire detection and recognition are one of the major securities and security region for saving human life. Concern to this we are going to propose a new model for early detection and recognition of the fire fo...
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The precise detection of plant centres is important for growth monitoring, enabling the continuous tracking of plant development to discern the influence of diverse factors. It holds significance for automated systems...
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ISBN:
(纸本)9798350372977;9798350372984
The precise detection of plant centres is important for growth monitoring, enabling the continuous tracking of plant development to discern the influence of diverse factors. It holds significance for automated systems like robotic harvesting, facilitating machines in locating and engaging with plants. In this paper, we explore the YOLOv4 (You Only Look Once) real-time neural network detector for plant centre detection. Our dataset, comprising over 12,000 images from 151 Arabidopsis thaliana accessions, is used to fine-tune the model. Evaluation of the dataset reveals the model's proficiency in centre detection across various accessions, boasting an mAP of 99.79% at a 50% IoU threshold. The model demonstrates real-timeprocessing capabilities, achieving a frame rate of approximately 50 FPS. This outcome underscores its rapid and efficient analysis of video or image data, showcasing practical utility in time-sensitive applications.
The majority of fatalities, injuries, and property damage are caused by traffic collisions. The principal cause of death is frequent excessive speeding. Deep learning techniques are now frequently used for the analysi...
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Artificial Intelligence (AI) needs huge amounts of data, and so does Learned Restoration for video Compression. There are two main problems regarding training data. 1) Preparing training compression degradation using ...
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ISBN:
(纸本)9781665475921
Artificial Intelligence (AI) needs huge amounts of data, and so does Learned Restoration for video Compression. There are two main problems regarding training data. 1) Preparing training compression degradation using a video codec (e.g., Versatile video Coding - VVC) costs a considerable resource. Significantly, the more Quantization Parameters (QPs) we compress with, the more coding time and storage are required. 2) The common way of training a newly initialized Restoration Network on pure compression degradation at the beginning is not effective. To solve these problems, we propose a Degradation Network to pre-chew (generalize and learn to synthesize) the real compression degradation, then present a hybrid training scheme that allows a Restoration Network to be trained on unlimited videos without compression. Concretely, we propose a QP-wise Degradation Network to learn how to compress video frames like VVC in real-time and can transform the degradation output between QPs linearly. The real compression degradation is thus pre-chewed as our Degradation Network can synthesize the more generalized degradation for a newly initialized Restoration Network to learn easier. To diversify training video content without compression and avoid overfitting, we design a Training Framework for Semi-Compression Degradation (TF-SCD) to train our model on many fake compressed videos together with real compressed videos. As a result, the Restoration Network can quickly jump to the near-best optimum at the beginning of training, proving our promising scheme of using pre-chewed data for the very first steps of training. In other words, a newly initialized Learned video Compression can be warmed up efficiently but effectively with our pre-trained Degradation Network. Besides, our proposed TF-SCD can further enhance the restoration performance in a specific range of QPs and provide a better generalization about QPs compared with the common way of training a restoration model. Our work is
Extraction of image edges is the basis of imageprocessing class algorithms, for image edge extraction is of great significance. Nowadays, videoimage data is greatly increases the amount of image data and the process...
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The accuracy and real-time performance of existing image labeling algorithms are not high. This project intends to study the video sequence feature labeling algorithm for digital multimedia images. A digital multimedi...
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In order to meet the demand for flexible acquisition of videoimages and real-timeprocessing of images, the speed and efficiency of imageprocessing are improved. This paper is an embedded system based on the ZYNQ-70...
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This research presents a real-time automotive sensing system for the data of urban garbage disposal. The proposed solution is implemented on an edge computing device mounted on garbage truck where a deep learning base...
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