Visibility enhancement via optimal two-piece gamma tone mapping for optical see-through displays under ambient light

Color Contrast Enhanced Rendering for Optical See-Through Head-Mounted Displays

“…MR devices and corresponding algorithms are becoming prolific research areas. Numerous studies explored how to better present colors of virtual scenes, such as harmonization [11], defocus correction [12], [13], color reproduction [14], [15], color balancing [16], light filtering [17], [18], [19], color correction [6], [7], and visibility improvement [9], [20], etc. In this section, we introduce the most relevant research topics, color correction and visibility improvement, in more detail, and then describe a highly relevant work that the perceived color contrast in the HVS.…”

“…However, on common OST-HMDs, this method increases the brightness but reduces the contrast of virtual objects, leading to a washed-out effect of the texture details. Lee and Kim [20] used tone mapping to enhance the visibility of low gray-level regions under ambient light, but they only demonstrated on grayscale images. The main problem of these two approaches is that they only consider the luminance of rendered images, limiting their effectiveness for virtual objects with colorful, intricate textures.…”

P‐51: Student Poster: Color Contrast Enhanced Rendering for Optical See‐Through Head‐Mounted Displays with Optimized Display Power

“…Mixed reality devices and corresponding services are becoming prolific areas. Numerous solutions have strived to enable high contrast color perception for OST-HMDs, such as color reproduction [1,2], color correction [3,4], light filtering [5,6,7], visibility improvement [8,9], and color contrast enhancement [10], etc. Among these solutions, hardware-based designs provide an excellent experience.…”

Real-Time Measurement of Ammonia (NH3) in Artillery Smoke Using a Passive FT-IR Remote Sensor

“…Early detection of chemical warfare agents, toxic industrial chemicals, and leaked chemical threats is important for providing effective protection and improving the survival rates of military personnel and civilians in the chemical industry, 1,2 environmental monitoring, 3 and military field operations. 4 When chemicals are released outdoors, they are typically in the gaseous phase, and as such are colorless and odorless. Therefore, a remote and early detection of chemical exposure is essential to prevent causalities.…”

“…Previously, most FT-IR research has been focused on the development of a compact detector for portable sensors, 4 improvement in the detection limit, 14 signal processing methods, 15 or installation of FT-IR interferometers. 12 However, as the FT-IR technology is intended to operate outdoors, much indoor-based sensor development research tends to require the development of a functional outdoor spectrum before commercialization and systemization can be achieved during the final production stages.…”