算力向端侧下沉，芯片巨头竞速AI落地
算力向端侧下沉，芯片巨头竞速AI落地索尼演示路侧感知上车，让驾驶员看见遮挡后的行人
在上海进博会的模拟驾驶舱里，一名行人从绿植墙后经过。车内看不到真人，屏幕上却能显示其位置。索尼展示的“语义慧行”系统借助路侧设备识别行人和非机动车，将关键场景信息传到车端，再由车机还原直观画面，让驾驶员分辨风险来自哪个方向。该系统针对的是建筑物或前车形成的视线盲区。
把演示搬上车辆，受到计算能力、时延和通信带宽的共同约束。索尼称，团队已缩小模型以降低运行开销，并允许系统根据网络状况改变传输的信息量，适配车联网通信条件。相关技术已与国内商用车通信单元进行联合测试。本届展会展示的是车载预警应用的推进情况，演示场景中的行人画面由路侧识别和车端重建共同产生。索尼也把缩短处理时延列为改进目标，因为经过遮挡物的人仍在移动，路侧看见风险与车内画面显示之间的间隔会影响提示的时机。
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