Abstract:
Disclosed devices and methods for droplet microchromatograhy are aimed at optical monitoring and rapid analysis of a drying droplet. The device includes droplet deposition component preferably made as a modified disk adapted to fit in a modified CD disk drive, an optical recorder, and a computer control and image analysis. Recorded timed sequence of images of the process of drying of the droplet is digitally filtered and analyzed using windows selected in each image. Changes of predetermined parameters in each window for each image are calculated to assess temporal and spatial dynamics within the sequence of images reflecting sedimentary pattern formation of a drying droplet. Humidity can be selectively controlled to slow down the drying process allowing “zooming” onto the critical periods of drying of the droplet. Various chemical coatings of the deposition means can be used to enhance the test further. If used with biological fluids, the devices and methods of the invention can provide for rapid diagnosis of a variety of conditions and diseases.
Abstract:
The invention provides a method and system for simultaneously imaging multiple views of a plant embryo. First, the method provides a camera for receiving a first view of a plant embryo (e.g., the top view). Second, the method provides a first reflecting surface for receiving and reflecting a second view of the plant embryo (e.g., the side view) toward the camera. Thus, the method permits simultaneously imaging both the first and second views of the plant embryo. In one embodiment, the method further provides a second reflecting surface for receiving and reflecting a third view (e.g., the end view) of the plant embryo toward the camera, so that the camera can simultaneously image the first, second, and third views of the plant embryo. The invention reduces the time required to obtain multiple views of an embryo, which can then be analyzed to classify the embryos according to their germination vigor.
Abstract:
A method of visually quantifying a test material along with an imaging apparatus for practicing the method is disclosed. The method comprises: (a) illuminating the test material at a known angle of incidence with diffuse light of a known and adjustable polarization state; (b) receiving light from the test material with a polarization state modified by the test material; (c) measuring an intensity of the polarization components of the received light for each illuminated pixel substantially simultaneously; (d) calculating the Stokes Vector in two dimensions for each illuminated pixel; and (e) creating an image map for the known polarization state. The method may also include adjusting the known polarization or the incident angle of the diffuse light to create additional image maps. The method and apparatus are intended for use in medical imaging including minimally invasive surgery.
Abstract:
Methods and apparatus for imaging a sample using a microwell array are provided. The methods and apparatus allow side view imaging of a sample to acquire fluorescence or bright field images.
Abstract:
This application relates to an apparatus and method for automated inspection of formed metal containers. More specifically, it pertains to the use of machine vision systems to identify and correlate manufacturing defects occurring in formed food and beverage containers to specific manufacturing paths or sources of origin (e.g., body makers) used in the container forming process. The disclosed invention is enabled by the placement of a machine-readable code on specific portions of the can body during the forming process and the use of machine vision reading techniques.
Abstract:
Abstract of the DisclosureDevices for optical monitoring and rapid analysis of a drying droplet are presented and include a droplet deposition means, an optical recording means, and a computer control and image analysis means. In several preferred embodiments, a pipette is used to deposit one or more droplets in parallel onto a slide, a plate or a film, and a digital microscope is positioned either above or below the droplet to record a timed sequence of images of the process of drying thereof. Various chemical compounds coating the deposition slide can be used to enhance the test further. Image analysis includes data filtering, dividing the image into a plurality of overlapping windows, and analysis of formation and change in patterns over time. If used with biological fluids, the devices and methods of the invention can be used for rapid diagnosis of a variety of conditions and diseases.
Abstract:
The invention provides a method and system for simultaneously imaging multiple views of a plant embryo. First, the method provides a camera for receiving a first view of a plant embryo (e.g., the top view). Second, the method provides a first reflecting surface for receiving and reflecting a second view of the plant embryo (e.g., the side view) toward the camera. Thus, the method permits simultaneously imaging both the first and second views of the plant embryo. In one embodiment, the method further provides a second reflecting surface for receiving and reflecting a third view (e.g., the end view) of the plant embryo toward the camera, so that the camera can simultaneously image the first, second, and third views of the plant embryo. The invention reduces the time required to obtain multiple views of an embryo, which can then be analyzed to classify the embryos according to their germination vigor.
Abstract:
A method of verifying the color and tinting strength of a manufactured batch of a semi-transparent wood stain. In accordance with the method, a standard batch of the wood stain is formed and then mixed with a specified amount of a white colorant to form a standard measurement batch. A test sample of the manufactured batch is obtained and is also mixed with a specified amount of the white colorant to form a test measurement sample. Layers of the standard measurement batch and the test measurement sample are formed on the substrates and complete hide obtained. Reflectance measurements of the layers are made using a spectrophotometer. The reflectance measurements are used to determine if the color and the tinting strength of the manufactured batch is within an acceptable deviation range of the color and tinting strength of the standard batch. This allows for objective color difference and tint strength difference calculations, and adjustments can be made therefrom, therefore eliminating the past visual trial and error methods.
Abstract:
A pattern detection method and apparatus thereof for inspecting with high resolution a micro fine defect of a pattern on an inspected object and a semiconductor substrate manufacturing method and system for manufacturing semiconductor substrates such as semiconductor wafers with a high yield. A micro fine pattern on the inspected object is inspected by irradiating an annular-looped illumination through an objective lens onto a wafer mounted on a stage, the wafer having micro fine patterns thereon. The illumination light may be circularly or elliptically polarized and controlled according to an image detected on the pupil of the objective lens and image signals are obtained by detecting a reflected light from the wafer. The image signals are compared with reference image signals and a part of the pattern showing inconsistency is detected as a defect so that simultaneously, a micro fine defect or defects on the micro fine pattern are detected with high resolution. Further, process conditions of a manufacturing line are controlled by analyzing a cause of defect and a factor of defect which occurs on the pattern.
Abstract:
A pattern detection method and apparatus thereof for inspecting with high resolution a micro fine defect of a pattern on an inspected object and a semiconductor substrate manufacturing method and system for manufacturing semiconductor substrates such as semiconductor wafers with a high yield. A micro fine pattern on the inspected object is inspected by irradiating an annular-looped illumination through an objective lens onto a wafer mounted on a stage, the wafer having micro fine patterns thereon. The illumination light may be circularly or elliptically polarized and controlled according to an image detected on the pupil of the objective lens and image signals are obtained by detecting a reflected light from the wafer. The image signals are compared with reference image signals and a part of the pattern showing inconsistency is detected as a defect so that simultaneously, a micro fine defect or defects on the micro fine pattern are detected with high resolution. Further, process conditions of a manufacturing line are controlled by analyzing a cause of defect and a factor of defect which occurs on the pattern.