针对自动驾驶场景动态目标检测存在检测速度难以满足实时性要求、检测目标小或被遮挡造成的精度不足和误检、漏检率高等问题,提出一种基于改进YOLOv8模型的行人及车辆检测方法。首先,在Backbone骨干网络提取图像特征时使用对图像分辨率...针对自动驾驶场景动态目标检测存在检测速度难以满足实时性要求、检测目标小或被遮挡造成的精度不足和误检、漏检率高等问题,提出一种基于改进YOLOv8模型的行人及车辆检测方法。首先,在Backbone骨干网络提取图像特征时使用对图像分辨率低、小目标检测友好的空间到深度卷积(a Space-to-Depth layer followed by a non-strided Convolution,SPD-Conv)模块;其次,在Neck层融合特征时增加上下文转换自注意力(Contextual Transformer,CoT)模块提高模型特征表达能力;最后,引入SIoU,加快模型的收敛速度并提高准确率。所提方法在KITTI数据集上实验。结果显示:相较于原YOLOv8算法,所提算法的准确率、召回率、平均准确率分别提高0.7%、2.1%、2.1%,浮点运算数、帧率分别提高3.6 GFLOPS、24.64 frame/s,证明所提方法能够有效综合满足自动驾驶车辆行人及车辆检测任务中的实时性、精度提高以及降低漏检率和误检率需求。展开更多
This brief commentary attempts to provide a concise synthesis of social psychology experiments that inform an interpretation of clinical pain. From a social perspective the expression of pain is a complex phenomenon t...This brief commentary attempts to provide a concise synthesis of social psychology experiments that inform an interpretation of clinical pain. From a social perspective the expression of pain is a complex phenomenon that is greater than the patient's physiology. Numerous experiments show that pain is modulated by social andcontextual factors. These experiments point to the role of the listener as a social agent that can modulate the patient's expression. Within the clinical setting the patient's pain experience can be understood as the uncertainty of physical damage and their expression as an attempt to reduce that uncertainty. How successfully this occurs is in part dependent on the empathetic reception of the provider. Chronic pain is a state that is challenging to effectively model in humans but may persist in patients due to an inability to receive effective empathetic reception at the critical time of need(at or near onset). Rather than focusing on pain's alleviation future avenues of pain interventions may do well by turning attention to the most effective ways to impart a message that the patient will be "okay" in a genuinely empathetic manner.展开更多
Historically,vision research in China was one of a few distinct research programs within the Chinese Academy of Sciences(CAS).With improved funding opportunities and research environment in neuroscience,vision researc...Historically,vision research in China was one of a few distinct research programs within the Chinese Academy of Sciences(CAS).With improved funding opportunities and research environment in neuroscience,vision research at several research institutes within the academy has made significant progress not only in the quantity of publications,but also in the quality of the work.Based on our own expertise,this review is mainly focused on the findings that have advanced the understanding of visual processing in the central visual pathway,visual perceptual learning,visual development and eye diseases.展开更多
文摘针对自动驾驶场景动态目标检测存在检测速度难以满足实时性要求、检测目标小或被遮挡造成的精度不足和误检、漏检率高等问题,提出一种基于改进YOLOv8模型的行人及车辆检测方法。首先,在Backbone骨干网络提取图像特征时使用对图像分辨率低、小目标检测友好的空间到深度卷积(a Space-to-Depth layer followed by a non-strided Convolution,SPD-Conv)模块;其次,在Neck层融合特征时增加上下文转换自注意力(Contextual Transformer,CoT)模块提高模型特征表达能力;最后,引入SIoU,加快模型的收敛速度并提高准确率。所提方法在KITTI数据集上实验。结果显示:相较于原YOLOv8算法,所提算法的准确率、召回率、平均准确率分别提高0.7%、2.1%、2.1%,浮点运算数、帧率分别提高3.6 GFLOPS、24.64 frame/s,证明所提方法能够有效综合满足自动驾驶车辆行人及车辆检测任务中的实时性、精度提高以及降低漏检率和误检率需求。
文摘This brief commentary attempts to provide a concise synthesis of social psychology experiments that inform an interpretation of clinical pain. From a social perspective the expression of pain is a complex phenomenon that is greater than the patient's physiology. Numerous experiments show that pain is modulated by social andcontextual factors. These experiments point to the role of the listener as a social agent that can modulate the patient's expression. Within the clinical setting the patient's pain experience can be understood as the uncertainty of physical damage and their expression as an attempt to reduce that uncertainty. How successfully this occurs is in part dependent on the empathetic reception of the provider. Chronic pain is a state that is challenging to effectively model in humans but may persist in patients due to an inability to receive effective empathetic reception at the critical time of need(at or near onset). Rather than focusing on pain's alleviation future avenues of pain interventions may do well by turning attention to the most effective ways to impart a message that the patient will be "okay" in a genuinely empathetic manner.
文摘Historically,vision research in China was one of a few distinct research programs within the Chinese Academy of Sciences(CAS).With improved funding opportunities and research environment in neuroscience,vision research at several research institutes within the academy has made significant progress not only in the quantity of publications,but also in the quality of the work.Based on our own expertise,this review is mainly focused on the findings that have advanced the understanding of visual processing in the central visual pathway,visual perceptual learning,visual development and eye diseases.
