Why Phase One?
Phase One has worked with specialists on multispectral imaging projects for years. Based upon this experience, we have developed a flexible, easy to handle and robust MSI solution centered around a best practice workflow. The Rainbow solution ensures that consistent and efficient imaging, with minimal overhead, improves the process of multispectral analysis across a wide range of applications.
The Rainbow solution automates the capture of image stacks from a range of wavelengths – both visible and invisible to the human eye. The stacks are directly available to analyze substances and surfaces to determine readability, authenticity, age, and material characterization and distribution.
Phase One Rainbow Solution
What does a solution contain?
The Phase One Rainbow solution includes several core components, and can be further tailored to your specific needs with optional or flexible components:
- iXG 100MP Wide Spectrum camera including magnetic IR/UV cut filter and hood
- MSI accessory kit including filter wheel, mounting rail, USB hub, computer and software
- Multiband/ Charisma Dedolights, including filters, power supplies and USB power switches | Narrowband Eureka Lights*
- Copy stand (desktop/ floor/ wall)*
*Light stand and copy stand not included in core solution
Simple, automated capture
With Phase One Rainbow, the capture process is fully automated. Simply position the subject matter and press ‘Capture’. The full stack of captures are then made with automated focus, flattening, exposure normalization, and alignment, to deliver the perfect stack. The solution ensures perfect repeatability and stability.
The Rainbow MSI software controls all elements of capture – focusing the camera, moving the filter carousel on the filter wheel, turning the lights on and off in the correct order and timing, aligning the images, and, finally, creating the perfect stack.
The simple capture workflow ensures an efficient path to extensive, non-invasive and contactless analysis.
Robust, high-resolution camera
The iXG 100MP Wide Spectrum camera employs a high-resolution CMOS sensor and advanced focusing to deliver sharp, color accurate, reliable and repeatable results through the entire sweep of light wavelengths involved.
The Wide Spectrum RGB sensor is tailored for multispectral work, with the added benefit of being able to also do standard visible-spectrum digitization work. Simply attach the included IR/UV-cut filter to the magnetic holder of the lens, and you are ready to capture in accordance with Metamorfoze, FADGI and ISO color standards.
The camera also provides responsive live-view for efficient and safe positioning of subject matter.
The iXG 100MP Wide Spectrum camera comes with 72mm and 120mm lenses and extension tubes, all suited for a wide range of MSI imaging tasks, as well as standard flat copy digitization work. The precise focusing mechanism of iXG measures distances accurately, and provides for Auto PPI functionality, which makes digitization work at different resolutions quick and easy.
The iXG 100MP Wide Spectrum Camera is designed to work hard and to last. It offers industrial build quality, made with aerial-grade aluminum and using the most durable mechanical and electronic components available today. The Reliance Shutter’s longevity offers a one million actuations guarantee. And with the iXG 100MP WS in electronic shutter mode, you benefit from an unlimited number of shutter actuations.
The industrial build ensures a long usable life for superior return on investment.
Visible and luminescence imaging
In a darkened studio, LED lighting and filters in front of the camera are used to capture two types of images: reflected light and photo-induced luminescence.
- Images of reflected light: The different light bands enter into the surface of the subject matter and are reflected from different layers. Characteristics are then captured of the visible top surface, and of the layers below, to reveal information about, for example, earlier text scraped away on parchment and palimpsests, paints used, re-touching, underdrawings, state of conservation, etc.
- Images of photo-induced luminescence: A given wavelength of light induces energy in the subject-matter and can result in luminescence, showing up as illuminations in a longer wavelength. The term “luminescence” also includes fluorescence. The luminescence is captured by filtering away the reflected shorter original wavelength, by using filters in front of the camera.
To support the varied needs and standards of multispectral imaging, including the CHARISMA standard manual, the filter wheel can hold up to five filters. It is configured to support the filtering needs of accurate visible imaging and luminescence imaging.
The carousel which holds the filters is removable, and can be configured with any 2” filters for scientific applications. The factory capture settings can be adjusted to suit different filter configurations. To support varied MSI use cases within a single institution or project, you can simply work with two or more filter carousels.
LED lighting can be specified to deliver select bands of the spectrum from UV light, through visible light and into IR light. The low energy output of LED lighting ensures that the capture process remains non-destructive. The Rainbow solution supports two types of LED lights for a wide range of applications:
- Multiband DedoLight, delivering narrowband UV, broadband visible light, and broadband and narrowband IR. This light is often used for MSI applications related to art conservation and forensics. Recipes for the capture of images following the CHARISMA standard manual are included.
- Narrowband EurekaLight, delivers 16 narrow bands of light from UV, through visible to IR. This light is often used for MSI applications related to document readability.
Tailored for your specific needs
The Rainbow MSI solution can be tailored for a wide range of applications and project sizes. Phase One’s experienced team is ready to assist you with custom guidance in configuring the best solution for a given application. Advice is backed up with online demonstrations and sample imaging from the Phase One MSI demo center in Cologne, Germany.
For feasibility studies, smaller projects, and operational support, Phase One offers workshops in which specialists can take you through the basics of MSI and the capturing of relevant samples.
Contact a Phase One expert
Are you interested in learning more about our multispectral imaging solutions? Fill out the form, and a Phase One Cultural Heritage expert will be in touch shortly.