Visual Comfort Assessment Using High Dynamic Range Images under Daylight Condition in the Main Library Building of Institut Teknologi Bandung

A Parametric Method for Remapping and Calibrating Fisheye Images for Glare Analysis

“…Specifically, in visual comfort studies it can provide luminosity ranges within a field of view (FOV) that would not be normally possible with other types of photometric instruments (i.e., Luminance meters). To date, many post-occupancy studies in visual comfort research have adopted this approach to assess the subjective experiences of discomfort glare in buildings [4][5][6][7][8]. This is because a camera with fisheye lens can capture Low Dynamic Range (LDR) images to generate HDR images with a field of view similar to a human's field of view (FOV).…”

Natural Lighting for Sustainability of Cultural Heritage Refurbishment

“…Results have shown that this method will allow for adaptive lighting, based on the optimal control and use of natural light, historical-philological re-reading of the space, cultural heritage preventive protection and conservation, with the aim of building adaptive reuse, and it can be extended to similar cultural heritage cases, but also non-listed buildings and current designs. This research demonstrates how a correct natural lighting design can be a tool for sustainable refurbishment, guaranteeing cultural heritage conservation and preventive protection, and recovery of the historical, architectural and philological value of old and/or listed buildings, which have been converted to uses, often diametrically opposed to the original ones.Sustainability 2019, 11, 4842 2 of 17 libraries, especially when housed in historical buildings, highlighting its positive effects (i.e., economic, management, social, cultural, political, energy and environmental [10,13-16]), for the connection between recovery and conservative restoration of valuable historical buildings, with adaptive reuse as an essential component of sustainable new design and/or refurbishment [11,12,[17][18][19][20][21][22].This issue is complex just because historical buildings have often been converted to different uses from the original ones and natural light quantity and distribution in the environment can become the cause of deterioration and damage for sensitive materials and objects [14,[18][19][20][21].With regard to the issue concerning damage caused by exposure to light (e.g., radiant heating, photochemical action, structural degradation), for the preventive conservation and protection of high light-sensitive materials, such as textiles, carpets, tapestries, costumes, prints, books and paper material, the maximum illuminance value suggested is 50 lx. For low light-sensitive materials, such as stone materials, the suggested value is 300 lx and for average light-sensitive materials such as organic materials and wood, the suggested value is 150 lx [14,[18][19][20][21].Any retrofit and refurbishment solution for a new lighting system that does not recall the luminous climate belonging to the history of the building, does not allow the historical-philological reading of the space, does not transmit contents and information, can alter the visual perception up to making the space (historical building) even unrecognizable [3,20,21].…”

“…Sustainability 2019, 11, 4842 2 of 17 libraries, especially when housed in historical buildings, highlighting its positive effects (i.e., economic, management, social, cultural, political, energy and environmental [10,13-16]), for the connection between recovery and conservative restoration of valuable historical buildings, with adaptive reuse as an essential component of sustainable new design and/or refurbishment [11,12,[17][18][19][20][21][22].…”

“…This issue is complex just because historical buildings have often been converted to different uses from the original ones and natural light quantity and distribution in the environment can become the cause of deterioration and damage for sensitive materials and objects [14,[18][19][20][21].…”

“…With regard to the issue concerning damage caused by exposure to light (e.g., radiant heating, photochemical action, structural degradation), for the preventive conservation and protection of high light-sensitive materials, such as textiles, carpets, tapestries, costumes, prints, books and paper material, the maximum illuminance value suggested is 50 lx. For low light-sensitive materials, such as stone materials, the suggested value is 300 lx and for average light-sensitive materials such as organic materials and wood, the suggested value is 150 lx [14,[18][19][20][21].…”