Abstract:
The invention relates to a system for holding a fluid sample, said system comprising a transparent flexible tube for holding said fluid sample, a tube holder for holding said tube, a first flattening element, and second flattening element, wherein said first flattening element and said second flattening element may be moved relative to each other thereby changing said transparent flexible tube from a first state to a second state, where at least a first cross sectional dimension of said tube is smaller in said second state than in said first state.
Abstract:
The invention relates to a method for detecting particles in a liquid sample. A stroboscopic principle is applied to image the particle and to provide an optical sectioning of the particles. The method has a large variety of applications such as live monitoring of e.g. the amount of microorganisms, such as bacteria, in water samples from waterworks.
Abstract:
An optical system suitable for determining a characteristic as a function of time of at least a part of a liquid volume comprising a plurality of objects. The optical system provides a fast detection of a change in the liquid volume. The optical system comprises - an optical detection assembly comprising at least one image acquisition device configured to acquire images of an image acquisition area; - a sample device comprising at least one sample container suitable for holding a sample of said liquid volume; - a translating arrangement configured to translate said image acquisition area through at least one part of said sample container to perform a scan along a scanning path through said part of said sample container; and - an image analyzing processing system. The optical system is programmed to perform consecutive scans through said at least one part of said sample container, wherein each scan comprises acquiring images at a plurality of image acquiring positions of the image acquisition area by the optical detection assembly along at least one scanning path of the scan. The image analyzing processing system is programmed to determine a set of features in the form of a set of values for each of a plurality of objects captured on said images from each respective scan and to determine for each scan at least one derived result, the derived result is derived from a plurality of the sets of values, and to present said derived result obtained from the respective, consecutive scans as a function of time.
Abstract:
The invention relates to an apparatus, a method and a system for obtaining a plurality of images of a sample arranged in relation to a sample device. The apparatus comprises at least a first optical detection assembly having an optical axis and at least one translation unit arranged to move the sample device and the first optical detection assembly relative to each other. The movement of the sample device and the first optical detection assembly relative to each other is along a scanning path, which defines an angle theta relative to the optical axis, wherein theta is larger than zero.
Abstract:
A particle classifier system and a method of training the system are described. The particle classifier system is suitable for classification of particles in a liquid sample, said particle classifier system comprises - an optical detection assembly comprising at least one image acquisition device with an optical axis, the image acquisition device is configured to acquire images of an image acquisition area perpendicular to said optical axis; - a sample device comprising at least one sample container suitable for holding a sample in liquid form; - a translating arrangement configured to translate said image acquisition area through at least a part of said sample container; - a control system configured to controlling said optical detection assembly and said translating unit to acquire images of a plurality of image acquisition areas; - an image analyzing processing system programmed to analyze said acquired images by a method comprising creating objects (sub-images) of individual particles captured by said acquired images, creating stacks of objects of each individual particle, identifying complete stacks of objects comprising at least one object wherein said particle is in-focus, and two objects wherein said particle is out-of-focus, and determining, for each of said complete stacks of objects, a set of values for a set of features of at least N features, wherein N is larger than or equal to 1, and wherein the determination of said values of said set of features involve data obtained from said at least one object wherein said particle is in-focus, and/or said at least two objects wherein said particle is out-of-focus; and - an artificial intelligent processing system programmed to associate said set of values for said determined set of features for each individual particle to a particle classification.
Abstract:
The invention relates to a system for holding a fluid sample, said system comprising a transparent flexible tube for holding said fluid sample, a tube holder for holding said tube, a first flattening element, and second flattening element, wherein said first flattening element and said second flattening element may be moved relative to each other thereby changing said transparent flexible tube from a first state to a second state, where at least a first cross sectional dimension of said tube is smaller in said second state than in said first state.
Abstract:
The invention relates to a system and a method for determination of a value for at least one parameter describing microbial activity of individual biological organisms in a liquid sample. Images,wherein individual biological organisms may be identified,are combined to provide optical sectionings of the biological organisms and the optical sectionings are analysed to determine the value for said at least one parameter describing microbial activity of said individual biological organisms in each sample container.
Abstract:
An apparatus for obtaining a plurality of images of a sample includes a sample device suitable for holding a liquid sample; a first optical detection assembly including a first image acquisition device, the first optical detection assembly having an optical axis and an object plane, the object plane including an image acquisition area from which electromagnetic waves can be detected as an image by the first image acquisition device; one translation unit arranged to move the sample device and the first optical detection assembly relative to each other; and an image illumination device, wherein the apparatus is arranged to move the sample device and the first optical detection assembly relative to each other along a scanning path, which defines an angle theta relative to the optical axis, wherein theta is in the range of about 0.3 to about 89.7 degrees.
Abstract:
The invention relates to an apparatus, a method and a system for obtaining a plurality of images of a sample arranged in relation to a sample device. The apparatus comprises at least a first optical detection assembly having an optical axis and at least one translation unit arranged to move the sample device and the first optical detection assembly relative to each other. The movement of the sample device and the first optical detection assembly relative to each other is along a scanning path, which defines an angle theta relative to the optical axis, wherein theta is larger than zero.