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"Cartographers"
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Solving the puzzle under the sea : Marie Tharp maps the ocean floor
\"This illustrated biography shares the story of female scientist, Marie Tharp, a pioneering woman scientist and the first person to ever successfully map the ocean floor\"-- Provided by publisher.
Book
Cartographies of Engagement and Geographic Imagination in the Creation of Pars Quinta: Guillaume Le Testu's Terra Australis
Throughout the sixteenth century, the political and economic ambitions surrounding the discovery of a supposedly existent Southern Land led to the production of specific cartographic works. Maps, charts, and atlases suggested the existence of a Fifth Part (Pars Quinta), shaping the appearance and location of this unknown land across various visual media. An analysis of the twelve folio maps that Guillaume Le Testu dedicated to Terra Australis in his 1556 Cosmographie reveals that the geographical imagination underpinning the creation of Pars Quinta transformed it into a driving force for overseas expansion in the early modern period.
Journal Article
Scotland's Pariah
Scotland's Pariah is the first book to examine the remarkable life of John Pinkerton: antiquarian, poet, forger, cartographer, historian, serial adulterer, bigamist, and religious skeptic. A pugnacious and persistent man of letters who knew and was admired by literary masters such as Edward Gibbon, Horace Walpole, and William Godwin, Pinkerton's life was full of personal and professional misadventures.Patrick O'Flaherty's biography presents an engrossing account of Pinkerton's life and works from his early years in Scotland to his Parisian exile, covering his major editorial, antiquarian, and geographic works. Examining Pinkerton's involvement in the London literary scene, his conflicted relationship with the rise of Celtic nationalism, and his response to early literary romanticism, Scotland's Pariah is a shrewd and compassionate evaluation of an astonishing literary life.
eBook
A Smart Cane Based on 2D LiDAR and RGB-D Camera Sensor-Realizing Navigation and Obstacle Recognition
In this paper, an intelligent blind guide system based on 2D LiDAR and RGB-D camera sensing is proposed, and the system is mounted on a smart cane. The intelligent guide system relies on 2D LiDAR, an RGB-D camera, IMU, GPS, Jetson nano B01, STM32, and other hardware. The main advantage of the intelligent guide system proposed by us is that the distance between the smart cane and obstacles can be measured by 2D LiDAR based on the cartographer algorithm, thus achieving simultaneous localization and mapping (SLAM). At the same time, through the improved YOLOv5 algorithm, pedestrians, vehicles, pedestrian crosswalks, traffic lights, warning posts, stone piers, tactile paving, and other objects in front of the visually impaired can be quickly and effectively identified. Laser SLAM and improved YOLOv5 obstacle identification tests were carried out inside a teaching building on the campus of Hainan Normal University and on a pedestrian crossing on Longkun South Road in Haikou City, Hainan Province. The results show that the intelligent guide system developed by us can drive the omnidirectional wheels at the bottom of the smart cane and provide the smart cane with a self-leading blind guide function, like a “guide dog”, which can effectively guide the visually impaired to avoid obstacles and reach their predetermined destination, and can quickly and effectively identify the obstacles on the way out. The mapping and positioning accuracy of the system’s laser SLAM is 1 m ± 7 cm, and the laser SLAM speed of this system is 25~31 FPS, which can realize the short-distance obstacle avoidance and navigation function both in indoor and outdoor environments. The improved YOLOv5 helps to identify 86 types of objects. The recognition rates for pedestrian crosswalks and for vehicles are 84.6% and 71.8%, respectively; the overall recognition rate for 86 types of objects is 61.2%, and the obstacle recognition rate of the intelligent guide system is 25–26 FPS.
Journal Article