Jump to Content

Increase text size Decrease text size

SPIE DL Tab

Proceedings Tab

Journals Tab

SPIE Reviews Tab

EBooks Tab

SPIE Reviews banner

My Subscription | My Email Alerts | My Article Collections

GENERAL INFORMATION

BROWSE VOLUMES

Year Range:

2012

Volume 3

2011

Volume 2

2010

Volume 1

2012

Volume 3 (partial)

Search Volume | RSS Feeds

RSS
Previous Volume

SECTION LISTING

Reviews, Tutorials, Plenaries, and Keynotes from SPIE Journals and Proceedings

Add

Add Items to Cart

View

View Items in Cart

SELECTED: Export Citations | Show Only | Show All | Show/HideHide Summaries | Add to MyArticles | Email

back to top

Reviews, Tutorials, Plenaries, and Keynotes from SPIE Journals and Proceedings

Select this Article OPEN ACCESS		Vibrational spectroscopy: a tool being developed for the noninvasive monitoring of wound healing Nicole J. Crane and Eric A. Elster J. Biomed. Opt. 17, 010902 (25 January 2012); http://dx.doi.org/10.1117/1.JBO.17.1.010902 Online Publication Date: Jan 25, 2012 Full Text: Read Online (HTML) \| Download PDF
	+ -	Show Abstract Wound care and management accounted for over 1.8 million hospital discharges in 2009. The complex nature of wound physiology involves hundreds of overlapping processes that we have only begun to understand over the past three decades. The management of wounds remains a significant challenge for inexperienced clinicians. The ensuing inflammatory response ultimately dictates the pace of wound healing and tissue regeneration. Consequently, the eventual timing of wound closure or definitive coverage is often subjective. Some wounds fail to close, or dehisce, despite the use and application of novel wound-specific treatment modalities. An understanding of the molecular environment of acute and chronic wounds throughout the wound-healing process can provide valuable insight into the mechanisms associated with the patient’s outcome. Pathologic alterations of wounds are accompanied by fundamental changes in the molecular environment that can be analyzed by vibrational spectroscopy. Vibrational spectroscopy, specifically Raman and Fourier transform infrared spectroscopy, offers the capability to accurately detect and identify the various molecules that compose the extracellular matrix during wound healing in their native state. The identified changes might provide the objective markers of wound healing, which can then be integrated with clinical characteristics to guide the management of wounds.

Select this Article OPEN ACCESS		Progress in color night vision Alexander Toet and Maarten A. Hogervorst Opt. Eng. 51, 010901 (6 February 2012); http://dx.doi.org/10.1117/1.OE.51.1.010901 Online Publication Date: Feb 06, 2012 Full Text: Read Online (HTML) \| Download PDF
	+ -	Show Abstract We present an overview of our recent progress and the current state-of-the-art techniques of color image fusion for night vision applications. Inspired by previously developed color opponent fusing schemes, we initially developed a simple pixel-based false color-mapping scheme that yielded fused false color images with large color contrast and preserved the identity of the input signals. This method has been successfully deployed in different areas of research. However, since this color mapping did not produce realistic colors, we continued to develop a statistical color-mapping procedure that would transfer the color distribution of a given example image to a multiband nighttime image. This procedure yields a realistic color rendering. However, it is computationally expensive and achieves no color constancy since the mapping depends on the relative amounts of the different materials in the scene. By applying the statistical mapping approach in a color look-up-table framework, we finally achieved both color constancy and computational simplicity. This sample-based color transfer method is specific for different types of materials in a scene and can be easily adapted for the intended operating theatre and the task at hand. The method can be implemented as a look-up-table transform and is highly suitable for real-time implementations.

Select this Article OPEN ACCESS		Near-infrared diffuse correlation spectroscopy in cancer diagnosis and therapy monitoring Guoqiang Yu J. Biomed. Opt. 17, 010901 (7 February 2012); http://dx.doi.org/10.1117/1.JBO.17.1.010901 Online Publication Date: Feb 07, 2012 Full Text: Read Online (HTML) \| Download PDF
	+ -	Show Abstract A novel near-infrared (NIR) diffuse correlation spectroscopy (DCS) for tumor blood flow measurement is introduced in this review paper. DCS measures speckle fluctuations of NIR diffuse light in tissue, which are sensitive to the motions of red blood cells. DCS offers several attractive new features for tumor blood flow measurement such as noninvasiveness, portability, high temporal resolution, and relatively large penetration depth. DCS technology has been utilized for continuous measurement of tumor blood flow before, during, and after cancer therapies. In those pilot investigations, DCS hemodynamic measurements add important new variables into the mix for differentiation of benign from malignant tumors and for prediction of treatment outcomes. It is envisaged that with more clinical applications in large patient populations, DCS might emerge as an important method of choice for bedside management of cancer therapy, and it will certainly provide important new information about cancer physiology that may be of use in diagnosis.

View presentations in solar, OLEDs, and more

Field Guide to Geometrical Optics

Join SPIE