In view of the images collection and processing problems of the smart car camera, the paper introduces a method which deals with field and line synchronization signal separation and binarization processing of the vide...In view of the images collection and processing problems of the smart car camera, the paper introduces a method which deals with field and line synchronization signal separation and binarization processing of the video signal collected from track fields, and which is capable to extract and position black border trajectory images effectively. According to the experiment results of the method, the camera images can be collected and processed effectively, and the accurate image information can be provided for the smart cars to travel along the track. The method has the advantages of being easy to use, strong adaptability, ideal performance and high practical value. On the basis of advantages the method is of high practical value in smart car races.展开更多
为有效提升普速铁路防洪防汛风险研判能力,降低现场防洪人员劳动强度,设计基于人工智能(AI,Artificial Intelligence)与物联网(IoT,Internet of Things)技术的铁路防洪管理系统视频监测报警应用。该应用采用无源无线与云端协同的技术架...为有效提升普速铁路防洪防汛风险研判能力,降低现场防洪人员劳动强度,设计基于人工智能(AI,Artificial Intelligence)与物联网(IoT,Internet of Things)技术的铁路防洪管理系统视频监测报警应用。该应用采用无源无线与云端协同的技术架构,在前端防洪点位布设智能摄像机进行实时灾害监测,通过4G/5G移动通信网络或卫星通信将数据传至云端,结合多模态灾害识别算法进行二次分析与报警。实际应用表明,该应用可有效降低灾害误报率和漏报率,显著提升防洪风险研判能力,为保障铁路运输安全提供了可靠的技术支持。展开更多
RAW格式已经被越来越多的数码相机用户所接受,讨论了使用Adobe Camera Raw后期处理RAW格式图像的一些高级技巧:调整画笔的选择性调整功能、渐变滤镜、色调曲线中Ctrl键的使用、彩色照片转黑白、实现HDR效果、以智能对象打开图像、同时...RAW格式已经被越来越多的数码相机用户所接受,讨论了使用Adobe Camera Raw后期处理RAW格式图像的一些高级技巧:调整画笔的选择性调整功能、渐变滤镜、色调曲线中Ctrl键的使用、彩色照片转黑白、实现HDR效果、以智能对象打开图像、同时处理多张照片等。展开更多
In this paper, we proposed an optimized real-time hybrid cooperative multi-camera tracking system for large-scale au-tomate surveillance based on embedded smart cameras including stationary cameras and moving pan/tilt...In this paper, we proposed an optimized real-time hybrid cooperative multi-camera tracking system for large-scale au-tomate surveillance based on embedded smart cameras including stationary cameras and moving pan/tilt/zoom (PTZ) cameras embedded with TI DSP TMS320DM6446 for intelligent visual analysis. Firstly, the overlapping areas and projection relations between adjacent cameras' field of view (FOV) is calculated. Based on the relations of FOV ob-tained and tracking information of each single camera, a homography based target handover procedure is done for long-term multi-camera tracking. After that, we fully implemented the tracking system on the embedded platform de-veloped by our group. Finally, to reduce the huge computational complexity, a novel hierarchical optimization method is proposed. Experimental results demonstrate the robustness and real-time efficiency in dynamic real-world environ-ments and the computational burden is significantly reduced by 98.84%. Our results demonstrate that our proposed sys-tem is capable of tracking targets effectively and achieve large-scale surveillance with clear detailed close-up visual features capturing and recording in dynamic real-life environments.展开更多
文摘In view of the images collection and processing problems of the smart car camera, the paper introduces a method which deals with field and line synchronization signal separation and binarization processing of the video signal collected from track fields, and which is capable to extract and position black border trajectory images effectively. According to the experiment results of the method, the camera images can be collected and processed effectively, and the accurate image information can be provided for the smart cars to travel along the track. The method has the advantages of being easy to use, strong adaptability, ideal performance and high practical value. On the basis of advantages the method is of high practical value in smart car races.
文摘为有效提升普速铁路防洪防汛风险研判能力,降低现场防洪人员劳动强度,设计基于人工智能(AI,Artificial Intelligence)与物联网(IoT,Internet of Things)技术的铁路防洪管理系统视频监测报警应用。该应用采用无源无线与云端协同的技术架构,在前端防洪点位布设智能摄像机进行实时灾害监测,通过4G/5G移动通信网络或卫星通信将数据传至云端,结合多模态灾害识别算法进行二次分析与报警。实际应用表明,该应用可有效降低灾害误报率和漏报率,显著提升防洪风险研判能力,为保障铁路运输安全提供了可靠的技术支持。
文摘In this paper, we proposed an optimized real-time hybrid cooperative multi-camera tracking system for large-scale au-tomate surveillance based on embedded smart cameras including stationary cameras and moving pan/tilt/zoom (PTZ) cameras embedded with TI DSP TMS320DM6446 for intelligent visual analysis. Firstly, the overlapping areas and projection relations between adjacent cameras' field of view (FOV) is calculated. Based on the relations of FOV ob-tained and tracking information of each single camera, a homography based target handover procedure is done for long-term multi-camera tracking. After that, we fully implemented the tracking system on the embedded platform de-veloped by our group. Finally, to reduce the huge computational complexity, a novel hierarchical optimization method is proposed. Experimental results demonstrate the robustness and real-time efficiency in dynamic real-world environ-ments and the computational burden is significantly reduced by 98.84%. Our results demonstrate that our proposed sys-tem is capable of tracking targets effectively and achieve large-scale surveillance with clear detailed close-up visual features capturing and recording in dynamic real-life environments.
