机器人天体生物学家：侦察红层中具有地质意义的罕见特征
The Cyborg Astrobiologist: Scouting Red Beds for Uncommon Features with Geological Significance
摘要：
“半机械天体生物学家”（CA）在西班牙瓜达拉哈拉北部靠近里瓦德乌乌斯特的一个红砂岩地点进行了第二次地质实地试验。Cyborg Astrobiologist是一种可穿戴计算机和摄像机系统，已证明能够在现场实时发现地质图像中的不寻常兴趣点。我们研究的第一个（三个）地质结构是一个几乎均匀的砂岩露头，它显示了红色的氧化铁杂质和白色的铁杂质。这些“红床”中的白色区域已经变成白色，因为铁已经被化学还原去除，也许是生物制剂。计算机视觉系统在一个实例中发现了几个（无铁）白点是不常见的，因此很有趣，还有几个小而暗的结节。第二个地质结构在砂岩表面含有白色纹理矿物沉积物，CA发现这些矿物沉积物很有趣。第三个地质结构是一个50厘米厚的古土壤层，一些植物的根系结构，这是由CA发现的有趣。半机械人天体生物学家对这些图像的兴趣点与人类地质学家随后确定的兴趣点的准盲比较显示，半机械人天体生物学家与人类地质学家在68%的时间内（真阳性率）一致，假阳性率为32%，假阴性率为32%。（摘要已删节）。
英文摘要：
The `Cyborg Astrobiologist' (CA) has undergone a second geological field trial, at a red sandstone site in northern Guadalajara, Spain, near Riba de Santiuste. The Cyborg Astrobiologist is a wearable computer and video camera system that has demonstrated a capability to find uncommon interest points in geological imagery in real-time in the field. The first (of three) geological structures that we studied was an outcrop of nearly homogeneous sandstone, which exhibits oxidized-iron impurities in red and and an absence of these iron impurities in white. The white areas in these ``red beds'' have turned white because the iron has been removed by chemical reduction, perhaps by a biological agent. The computer vision system found in one instance several (iron-free) white spots to be uncommon and therefore interesting, as well as several small and dark nodules. The second geological structure contained white, textured mineral deposits on the surface of the sandstone, which were found by the CA to be interesting. The third geological structure was a 50 cm thick paleosol layer, with fossilized root structures of some plants, which were found by the CA to be interesting. A quasi-blind comparison of the Cyborg Astrobiologist's interest points for these images with the interest points determined afterwards by a human geologist shows that the Cyborg Astrobiologist concurred with the human geologist 68% of the time (true positive rate), with a 32% false positive rate and a 32% false negative rate. (abstract has been abridged).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
