Agency for Science, Technology and Research

Tong Ming Liu

Jian Wei Xu

Xiang Li

Bing Lim

Andrew A Malcolm

Zhongping Fang

Pin Li

Ivan Reading

The present disclosure provides a method of generating mature mesenchymal stem cells and the cell culture medium used in such method. Also disclosed herein include a mesenchymal stem cell culture obtained by the method as disclosed herein, and uses thereof.

Method of generating mesenchymal stem cells and uses thereof

A computer-implemented process is provided for reorienting a three-dimensional (3D) scan image of an object. The object has a generally flat surface. The image is constructed from image data obtained during rotation of the object about a rotation axis, which intersects the plane of the flat surface at an angle. Axial slices of the scan image are obtained, each of which represents a slice of the object that is perpendicular to the rotation axis and comprises a line representing the flat surface of the object. The axial slices are shifted to align lines representing the flat surface in different axial slices, thus forming a reoriented 3D image. Alternatively, an axial tilt angle is determined from the positions of these lines and the image is rotated by the determined angle to form a reoriented 3D image.

Correcting axial tilt based on object positions in axial slices of three dimensional image

A method and apparatus is disclosed for determining the central ray of scanning an object on a detector in a computer tomography system. The method comprises producing a fan beam of x-rays at a fixed x-ray source and detecting the x-rays at the detector. The scanning projection data of the object under examination is received and the object is rotated under examination using a manipulator. After calculating the opposite projection pixel position and projection angle for each pixel, a mismatching is measured between the grey levels of all pixels and their calculated opposite projection pixels with a set of assumed central ray, and identifying the minimum of the measurement as the true central ray.

Computed tomography method and apparatus for centre-of-rotation determination

A system and method for micro computed tomography (CT) reconstruction of position scan data of planar objects, such as stacked integrated circuit chips and/or PCB, that automatically determines object orientation is disclosed for a preferred orientation of the reconstructed images. The object orientation of the sinogram of the scanning data is determined such that the reconstruction may be performed with any starting position. Additionally, planar object scan reconstructions with either a higher resolution in the thickness dimension without increasing the total computation resource or a faster processing speed under a given resolution in the thickness dimension may be achieved. The tilting angle with respect to the rotation axis may also be determined to perform a image rotation after a multi-slice reconstruction or cone-beam reconstruction.

Method and apparatus for reorientated resconstruction of computed tomography images of planar objects

A computed tomography system having a fixed X-ray source [for producing a fan beam [, a fixed digital detector [and a manipulator [for holding and rotating an object [to be inspected. Left and right projections of the rotated object on the fixed digital detector are used to determine a central ray, reconstruction of an image of the object being based on the central ray position. A corresponding method and apparatus are also disclosed.

Computed tomography system and method

Inclusions in a transparent panel () are detected by placing a light transmissive interface () in contact with the panel (), and transmitting a beam of light () through interface () into panel (). Within the panel (), the light beam () propagates along a path including total internal reflections at surfaces of panel (). When the light beam () intercepts inclusions () or other defects at least some of it is scattered, and leaves the panel (). This scattered light is then observed. Thus, a large zone of the panel () can be inspected, with light only being detected in the case that it arises from scattering by inclusions or other defects.

Method and apparatus for detection of inclusion in glass

A method of dynamically imaging, calibrating and measuring bump height and coplanarity of a plurality of bumps on a surface is disclosed. The method includes illuminating the plurality of bumps with multispectral light from at least one light source, and receiving light of a first wavelength at an imaging device such that a top view image of at least a portion of the plurality of bumps is captured. The light of the first wavelength is reflected off the plurality of bumps at a first angle from the surface. Light of a second wavelength is received at the imaging device such that at least one oblique side view image of at least a portion of the plurality of bumps is captured. The light of the second wavelength is reflected off the plurality of bumps at a second angle from the surface. The captured images are processed to determine absolute bump height and coplanarity. A corresponding apparatus is also disclosed.

Growing community of inventors

Singapore, Singapore

Tong Ming Liu