Abstract:
The present invention provides apparatuses and methods for sample analysis, such as tissue analysis, that integrate high wavenumber (HW) Raman spectroscopy for chemical composition analysis and optical coherence tomography (OCT) to provide depth and morphological information. The invention also provides side-viewing optical probes that are based on a single double clad optical fiber for performing the combined HW Raman spectroscopy and OCT. Intravascular catheter embodiments and related vascular diagnostic methods are also provided.
Abstract:
A hyperspectral imaging system and methods thereof especially useful in fields such as medicine, food safety, chemical sensing, and agriculture, for example. In one embodiment, the hyperspectral imaging module contains a light source (1) for illuminating the object (6) in a light-tight housing (17). The light is spectrally filtered (4) prior to illuminating the object. The light leaving the object is then directed through imaging optics (T) to an imaging array (9). In another embodiment, the object of interest is illuminated by ambient light which is then compensated by a light modulation system. In this embodiment, the light emitted from the object is spectrally filtered prior to reaching the imaging array.
Abstract:
A robotically controlled steerable gimbal (30) mounted virtual broadband hyperspectral sensor (40) system and methods provide a highly mobile, rapidly responsive and innovative system of locating targets and exploiting hyperspectral and ultraspectral imaging and non-imaging signature information in real-time from an aircraft or ground vehicles (V) from overhead or standoff perspective in order to discriminate and identify unique spectral characteristics of the target. The system preferably has one or more mechanically integrated hyperspectral sensors (40) installed on a gimbal backbone and coboresighted with a similarly optional mounted color video camera and optional LASER (47) within an aerodynamically stable pod shell constructed for three-dimensional stabilization and pointing of the sensor on a direct overhead or off-nadir basis.
Abstract:
The invention relates to simplified portable method of measuring light sources by limiting the number of parameters to measured for example to one plane of radiation where know characteristics are preselected or default selected to be used to calculated combined output. Further more is light measurements combined with power calculation and control where phase of supply current is used to obtain light source flickering, determine dimmable. Further more can an imaging recording device be used to further enhance the measurements.
Abstract:
La présente invention se rapporte à un d'étalonnage d'un dispositif (10) comportant un écran émissif (11) et un capteur (12) électronique d'images en couleur (tri stimulus), ledit capteur (12) électronique d'images comportant une lentille autofocus, caractérisé en ce qu'il comporte les étapes suivantes : a) mesure de la surexposition dudit capteur électronique d'images relativement à la puissance lumineuse de l'écran; b) mesure du seuil de détection dudit capteur électronique d'images; c) calibration des fonctions gammas R/V/B dudit capteur électronique d'images; d) calibration de la fonction gamma du rétroéclairage de l'écran; e) calibration des fonctions gammas R/V/B de l'écran; f) calcul d'une matrice de transfert colorimétrique dudit capteur électronique d'images des C CEI R/V/B linéaire∈ [0;1] vers des coordonnées CIE XYZ; g) calcul des spectres des trois primaires de l'écran rouge E(λ) R MAX , vert Ε(λ) V MAX et bleu Ε(λ) Β ΜΑΧ ; h) calcul d'ajustement entre la matrice de transfert colorimétrique de dudit capteur électronique d'images [M CEI ] et les spectres des trois primaires de l'écran rouge E(λ) R MAX , vert Ε(λ) V MAX et bleu Ε(λ) Β ΜΑΧ ; i) détermination de deux fonctions de transfert permettant de passer de la dioptrie d de ladite lentille autofocus à la mesure de distances dans le plan focal image, et à la distance entre le foyer de ladite lentille autofocus et le plan focal image; et j) détermination de l'écartement entre le foyer de la lentille et le bord de l'écran.
Abstract translation:本发明涉及包括发射显示器(11)和电子彩色图像(三刺激)传感器(12)的装置(10)的校准,所述电子图像传感器(12)包括自动对焦透镜,其特征在于: 它包括以下步骤:a)测量所述电子图像传感器相对于显示器的光输出的过度曝光; b)测量所述电子图像传感器的检测阈值; c)校准所述电子图像传感器的R / G / B伽马函数; d)校准显示器的背光的伽马功能; e)校准显示器的R / G / B伽马功能; f)从线性CCEI R / G / B E [0; 1]到CIE XYZ坐标计算所述电子图像传感器的比色转移矩阵; g)计算显示器的三个原色的光谱,红色E(λ)R MAX,绿色Epsilon(λ)V MAX和蓝色Epsilon(λ)Beta MuAlphaChi; h)计算所述电子图像传感器[MCEI]的比色转移矩阵与显示器的三个基色的光谱之间的调整,红色E(λ)R MAX,绿色Epsilon(λ)V MAX和蓝色Epsilon(λ) Beta MuAlphaChi; i)确定使得可以从所述自动对焦镜头的屈光度d切换到图像焦平面中的测量距离以及所述自动对焦透镜的焦点与图像焦平面之间的距离的两个传递函数; 以及j)确定透镜的焦点与显示器的边缘之间的距离。
Abstract:
The invention relates to simplified portable method of measuring light sources by limiting the number of parameters to measured for example to one plane of radiation where know characteristics are preselected or default selected to be used to calculated combined output. Further more is light measurements combined with power calculation and control where phase of supply current is used to obtain light source flickering, determine dimmable. Further more can an imaging recording device be used to further enhance the measurements.
Abstract:
The invention relates to simplified portable method of measuring light sources by limiting the number of parameters to measured for example to one plane of radiation where know characteristics are preselected or default selected to be used to calculated combined output. Further more is light measurements combined with power calculation and control where phase of supply current is used to obtain light source flickering, determine dimmable. Further more can an imaging recording device be used to further enhance the measurements.
Abstract:
The present invention may include loading a diagnostic sample onto a sample stage, focusing light from an illumination source disposed on a multi-axis stage onto the diagnostic sample, collecting a portion of light reflected from a surface of the diagnostic sample utilizing a detector, wherein the illumination source and the detector are optically direct-coupled via an optical system, acquiring a set of diagnostic parameters indicative of illumination source position drift from the diagnostic sample, determining a magnitude of the illumination source position drift by comparing the acquired set of diagnostic parameters to an initial set of parameters obtained from the diagnostic sample at a previously measured alignment condition, determining a direction of the illumination source position drift; and providing illumination source position adjustment parameters configured to correct the determined magnitude and direction of the illumination source position drift to the multi-axis actuation control system of the multi-axis stage.