Pei Jia

YOLOv8-Pointcloud-SLAM3: Visual Dense Point Cloud SLAM for Robot Navigation in Dynamic Environments

Xuehui Wang, Junbo Dong, Fengyi Zhang, Yongjun Xie et autres

Simultaneous Localization and Mapping (SLAM) has received widespread attention in fields such as intelligent robots and autonomous driving. However, many current SLAM systems fail to achieve high positioning accuracy when dealing with moving objects in dynamic environments. Furthermore, many SLAM systems still …

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A Circularly Polarized Wideband Patch Antenna Array for RF Communication Applications

Pei Jia, Shuo Xu, Yanfei Tang, Min Zou et autres

A circularly polarized broadband patch array antenna is proposed in this paper. The stacked structure well extends the antenna bandwidth. A$2^{\ast}2$antenna subarray is designed using sequential rotation feed technique and it is translated and expanded to get a$4^{\ast}4$antenna array. The paper also …

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High-Endfire-Gain Dielectric Image Line-Based Periodic Leaky-Wave Antenna With Planar Feeding

Ke Pang, Yongjun Xie, Pei Jia, Peiyu Wu

A high-endfire-gain periodic leaky-wave antenna (LWA) based on dielectric image line (DIL) and fed by a planar transition is proposed. The unit cell of the periodic DIL consists of two dielectric blocks with different permittivity, and space harmonics (SHs) are then generated. …

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Research on automated segmentation for pig carcass of robot system

Hao Zhang, Pei Jia, Hongjian Zhao, Chenghua Tian et autres

At present, the proportion of semi-mechanized production methods in China’s meat cutting industry is very high, and the boning operation can only be completed manually. In order to solve the problems of low efficiency, easy pollution and high cost in traditional meat …

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Research on Two-step Pointer Meter Recognition Method Based on Yolov7

Mou Jinzhuo, Hongjian Zhao, Chenghua Tian, Pei Jia et autres

In order to adapt to the dangerous and complex environment of chemical sites and reduce the danger of manual inspection in high-risk areas, this paper proposes a two-step pointer meter recognition method based on yolov7, which can be combined with explosion-proof inspection …

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Research on the design and implementation method based on livestock carcass boning and segmentation workstation

Chenghua Tian, Hongjian Zhao, Pei Jia, Cong Gu

For the livestock carcass segmentation labor intensity, high skill requirements, low segmentation efficiency; livestock carcass structure is complex, meat loss, the number of residual products is huge; livestock meat segmentation process time is long, easy to cause secondary pollution of meat and …

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Research on Target Detection and Grabbing Positioning Method Based on Deep Learning

Mou Jinzhuo, Chenghua Tian, Cong Gu, Pei Jia et autres

For livestock and poultry carcass segmentation, the labor intensity is high, the skill requirement is high, and the segmentation efficiency is low; The segmentation process of livestock and poultry meat takes a long time, which is easy to cause secondary pollution of …

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Research on image preprocessing based on 3D reconstruction of sequential X-ray images

Cong Gu, Hongjian Zhao, Pei Jia, Chenghua Tian et autres

The original X-ray images have problems such as high noise, narrow gray range, low contrast, and blurred edges, which seriously affect the reconstruction accuracy when using them for 3D reconstruction. Therefore, this paper explores the image preprocessing method of three-dimensional reconstruction of …

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Research on Ceramic Sanitary Ware Defect Detection Method Based on Improved VGG Network

Bowen Teng, Hongjian Zhao, Pei Jia, Junfeng Yuan et autres

Abstract The defect detection of ceramic sanitary ware is often done manually, which is inefficient and unhealthy. The development of deep learning technology makes a non-contact and high-efficient method of inspection possible. In this paper, based on VGG-16 network, we proposed an …

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Application of integrated manufacturing system of flexible production line in spacecraft manufacturing line

Chenghua Tian, Pei Jia, Junfeng Yuan, Bowen Teng

Abstract The realization of automatic control and information management is an important basis for the automation, information and intelligence of manufacturing industry. We have applied computer and network technology, programmable control technology, field-bus technology, information management and other technologies to the control, …

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Influence of humic acid on arsenic bioaccumulation and biotransformation to zebrafish: A comparative study between As(III) and As(V) exposure

Xiaoyan Wang, Liping Liu, Xiangrui Wang, Jinqian Ren et autres

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The Characterization of Dissolved Organic Matter in Reclaimed Water and Its Influence on Copper Toxicity

Jinxing Zuo, Pei Jia, Shu Liu, Xiaomin Li et autres

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