Current activity: a collaboration with the CoenLab with the aim of understanding how patterns of gene activity in biological organs influence the developing shape. The BanghamLab is focussed on the conceptual underpinning: concepts captured in computational growth models, experimental data visualisation and analysis.
Notes on documenting our software
Quantitative understanding of growing shapes: GFtbox
The first challenge for 'GFtbox.
To model the growth of a complex, and therefore challenging, shape to test GFtbox to the limit as we explored the possible relationships between genes, growth and form.
|Example of a growing snapdragon flower and some mutants ( Green et al 2011). Growth is specified by factors (genes) according to the Growing Polarised Tissue Framework. Colours represent putative gene activity, arrows the polariser gradient and spots clones.||GPT_Snapdragon_2010_Green_et_al-0002.png</wikiflv>|
For modelling the growth of shapes.
Download GFTbox from SourceForge
| GFtbox is an implementation of the Growing Polarised Tissue Framework for understanding and modelling the relationship between gene activity and the growth of shapes such leaves, flowers and animal embryos (Kennaway et al 2011). |
The GPT-framework was used to capture an understanding of (to model) the growing petal (Sauret-Güeto et al 2013), leaf (Kuchen et al 2012) and Snapdragon flower Green et al 2011. The Snapdragon model was validated by comparing the results with other mutant and transgenic flowers Cui et al 2010.
Key is how outgrowths can be specified by genes. The icon shows an asymmetrical outgrowth. Conceptually, it is specifed by two independent patterns under genetic control: a pattern of growth and a pattern of organisers. The outgrowth arises from a region of extra overall growth. Growth is aligned along axes set by two interacting systems. Organisers at the ends of the mesh create a lengthwise gradient. This gradient interacts with the second due to an organiser that generates polariser in a region that becomes the tip of the outgrowth. (Kennaway et al 2011)
Viewing and measuring volume images: VolViewer
|For viewing and measuring volume images on both normal and stereo screens. Typical images from: confocal microscope and Optical Projection Tomography (OPT) images
Cell: Online Gallery | Front cover: Handbook of Plant Science | Front cover: The Plant Cell | American Scientist | Royal Microscopical Society: Infocus Magazine | Bundled with the Bioptonic 3001 scanner: Bioptonics Viewer | The Daily Mail | The Guardian newspaper: 3D Fruit fly | Qt Ambassador program | Triffid Nurseries website
|VolViewer is used as a stand-alone app. or as a viewport for other systems, e.g. Matlab programs. VolViewer uses OpenGL and Qt to provide a user friendly application to interactively explore and quantify multi-dimensional biological images. It has been successfully used in our lab to explore and quantify confocal microscopy and optical projection tomography images. It is open-source and is also compatible with the Open Microscopy Environment (OME|
Analysing shapes in 2D and 3D: AAMToolbox
|For analysing populations of shapes and colours within the shapes using principal component analysis.
||The AAMToolbox enables the user analyse the shape and colour of collections of similar objects. Originally developed to analyse face shapes for lipreading (Matthews et al. 2002version of pdf), we have used it extensively for analysing the shapes of leaves (Langlade et al 2005.,Bensmihen et al. 2010) and petals (Whibley et al 2006,Feng et al. 2010). The analysis can be applied to art, for example, finding systematic differences between portraits by Rembrandt and Modigliani.|
Analysing the shapes of clones: SectorAnalysisToolbox
|For analysing the shapes of marked cell clones.
||The SectorAnalysisToolbox enables the user analyse the shapes of marked clones in a sheet of tissue.|
MSERs, extrema, connected-set filters and sieves
The algorithm finding MSER's starts with a connected-set opening or 'o' sieve
For finding features in and segmenting images.
Art, extrema of light and shade: PhotoArtMaster
Art created using ArtMaster was featured in an exhibit at the London Victoria and Albert (V&A) Museum exhibition 'Cheating? How to make Perfect Work of Art' (2003). The exhibition centered on the idea of Hockney's that advances in realism and accuracy in the history of Western art since the Renaissance were primarily the result of optical aids such as the camera obscura, camera lucida, and curved mirrors. My exhibit used a touch screen (rare in those days) and ArtMaster to help users create 'paintings'. finding its name.
The sieve algorithms underpinning PhotoArtMaster software
(an extract of the 'essay ). These documents were written to support our Fo2Pix company. A Windows version of the software will soon be downloadable from here for free (originally it sold >65,000 licences but Fo2Pix had to be closed primarily due to ill health.)
Reaction-diffusion and morphogenesis
Illustration of morphogenesis inspired by Turing's paper.
Example using growth toolbox GPT_ReactionDiffusionTentacles_20121211.zip
|<wikiflv width="300" height="300" logo="false" loop="true" background="white">GPT_rd_rk_tentacles_20120417-0004.flv|GPT_rd_rk_tentacles_20120417-0004_First.png</wikiflv> A simple reaction-diffusion system develops a pattern of spots.||GPT_rd_rk_tentacles_20120417-0004.png</wikiflv>
Open source systems to which we contribute
|For working with the OME image database.
See Details, Download
(Windows, Mac, Linux)
|Open Microscopy Environment Remote Objects (OMERO). for visualising, managing, and annotating scientific image data. See also our OMERO Workshop training course we ran in April 2011.|
Tools and Utilities
|For converting microscope manufacturer proprietary file formats.
(Windows, Mac, Linux)
|This tool allows for the batch conversion of microscope manufacturer proprietary file formats, to the open source OME-TIFF standard. Uses the Bioformats library.|
|For modelling the behaviour of microtubules within a cell.
|In development. The idea is to be able to model the behaviour of growing microtubules and factors as they react chemically and diffuse within the different cell compartments.|
The icon shows a spherical cell sliced open to show concentric components: cell wall (magenta), plasma-membrane (yellow), cytoplasm (green) and vacuole (yellow). Microtubules (blue) grow in 3D within the cytoplasm.