31第三十一篇Pool_Watch泳池监护.doc

31第三十一篇??? Pool Watch泳池监护 Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are introuble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning. 如果救生员没有注意到游泳者遇到了麻烦，那么他们可能会在人多的游泳池里淹死。防止事故皇家协会说每年平均有15个人在英国的游泳池里被淹死。但是更多的人在遇到麻烦先进的后受到了重伤。现在，一个法国公司开发了一种人工智能系统，叫做，当它发现有人有被淹死的危险时就会发出警报。 When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguards pager. In trials at a pool in Ancenis,it saved a life within just a few months, says Alistair McQuade,a spokesman for its maker, Poseidon Technologies. Poseidon keeps watch through a network of underwater and overhead video cameras. AI software analyses the images to work out swimmers trajectories. 当一个游泳者要沉到池底时，新的系统就会给池边的监视站和救生员的呼机发出警告信号。这个系统的制造商，波塞冬科技的发言人Alistair McQuade说，在昂斯尼市的一个游泳池对这个系统进行了试验，它在几个月内就救了一条人命。??? ，波塞冬通过水下的网络和头上的摄像机进行监视。AI软件分析图像得出游泳者的轨迹。 To do this reliably, it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool. The underwater environment is a very dynamic one, with many shadows and reflections dancing around, says McQuade. 为了可靠地做到这些，它（人工智能软件）必须能区分一个游泳的人与投射到池底或池壁的某个人的影子。McQuade说：“水下的环境是动态的，晃动着许多投影和倒影。” The software does this by projecting a shape in its field of view onto an image of the far wall of the pool. It does the same with an image from another camera viewing the shape from a different angle. If the two projections are in the same position, the shape is identified as a shadow and is ignored. But if they are different, the shape is a swimmer and so the system follows its trajectory. 这个软件做到这些是通过把它视野内的形状投射到游泳池远处的池壁的图像上。它对另一个从不同角度看到这个形状的摄像机上的图像做了同样的处理。如果这两个投影在同一位置，