Brain Function Measurement System, Optical Topography.
نویسندگان
چکیده
منابع مشابه
Topography of the merit function landscape in optical system design
We have shown recently that, when certain quite general conditions are satisfied, the set of local minima in the optical merit function space forms a network where they are all connected through optimization paths generated from saddle points having a Morse index of 1. A new global optimization method, that makes use of this linking network to systematically detect all minima, is presented. The...
متن کاملClinically Available Optical Topography System
OVERVIEW: Progress in medical imaging has led to remarkable advances in medical diagnosis technology. Nevertheless, the realization of advanced medical treatment requires functional imaging technology that is more practical. In contrast to morphological imaging, functional imaging captures information about the functioning of living tissues, such as blood circulation and oxygen metabolism, cere...
متن کاملModulation transfer function measurement of a multichannel optical system.
We present a new method to measure the modulation transfer function (MTF) beyond the Nyquist frequency of a multichannel imaging system for which all the channels have parallel optical axes. Such a multichannel optical system produces a set of undersampled subimages. If the subimages contain nonredundant information, high spatial frequencies are folded between low spatial frequencies, leading t...
متن کاملBrain imaging in awake infants by near-infrared optical topography.
Studies of young infants are critical to understand perceptual, motor, and cognitive processing in humans. However, brain mechanisms involved are poorly understood, because the use of brain-imaging methods such as functional magnetic resonance imaging in awake infants is difficult. In the present study we show functional brain imaging of awake infants viewing visual stimuli by means of multicha...
متن کاملAn Optical Measurement System to Measure Velocity and Provide Shock Wave Pressure Diagrams
This paper introduces an optical measurement system for shock wave characteristics. The system works by mountinga metal plate attached to spring mounts against the shock wavefront. This set is sealed and can plot the shock wave pressure diagram by measuring plate's displacement, radiation and changing the reflection of light during shock wave conflict, and converting these optical data to volta...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 2002
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.30.636