k-Wave Toolbox

# Release Notes

## Current Version

k-Wave Toolbox Version B.0.2 (second beta release)

## Change Log - B.0.2

New Features:

- inputs redefined as structures
- power law absorption
- 2D sensor directivity
- time varying pressure inputs

New Functions:

- attenuationWater
- db2neper
- filterTimeSeries
- grid2cart
- neper2db
- numDim
- powerLawKramersKronig
- scaleSI
- scaleTime
- spectrum
- speedSoundWater
- toneBurst

## Planned Updates For Existing Functions

`flyThrough`

- Record movie option

`interpCartData`

- Improved linear interpolation for 3D matrices

`kspaceFirstOrder1D`

- Support for initial and time-varying velocity inputs
- Improved initial layout plotting

`kspaceFirstOrder2D`

- Support for initial and time-varying velocity inputs
- Additional directivity patterns

`kspaceFirstOrder3D`

- Inclusion of sensor directivity
- Support for initial and time-varying velocity inputs
- Support for linear interpolation for Cartesian sensor masks
- Support for `'PMLInside'` equal to `false`

`kspaceLineRecon`

- Interpolation option to use the non-uniform FFT
- Support for data casting and GPU usage

`kspacePlaneRecon`

- Interpolation option to use the non-uniform FFT
- Support for data casting and GPU usage

`makeCircle`

- Support for even diameter circles

`makeDisc`

- Support for even diameter discs

`makeSphere`

- Input for arbitrary center position

## Planned Additions To The Toolbox

- Non-linear equation of state
- Simulation models using second order wave equation
- Voxel plot function - as used in the examples for 3D matrix visualisation
- Function for iterative reconstruction improvement using a forward model and positivity condition
- Functions implementing additional photoacoustic image reconstruction algorithms
- Functions for statistically classifying reconstruction errors and artefacts
- A phantoms repository
- Compatibility with the light modelling functions in Matlab toolbox TOAST
- Functions for extracting optical properties from (multiwavelength) photoacoustic images

© 2009, 2010 Bradley Treeby and Ben Cox.