1. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 1 Henning Lorch & Mario Kiekebusch et. al. The CLIP

2. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 2 „Common Library for Image Processing“ Use the latest pipeline SW technology (CPL) for the 2 nd Generation Instruments‘ control SW What is the CLIP? (1) Pipeline DRS Instrument Control SW

3. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 3 What is the CLIP? (2) VLT SW DRS Common Library for Image Processing CLIP Display PipelinesCPL Control SW

4. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 4 Goals To provide a suitable image processing toolkit, flexible and well integrated with the INS SW To share the same image processing algorithms whenever possible between INS SW and pipeline DRS To improve observation efficiency

5. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 5 Some LPO Image Processing Tasks Eclipse based: Slit Position  ISAAC, VISIR, NACO Jitter Pattern  ISAAC, VISIR, NACO Cube Computation  ISAAC Midas based: Center/Gauss  ISAAC, VISIR, VIMOS Center/Moment  UVES, FORS1, FORS2 Polynomial Fitting  VIMOS Custom: Image Reconstruction  SINFONI Visibilities Computation  AMBER Nodding Computation  VISIR

6. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 6 CLIP Definition CLIP is a package made up of several modules, providing an interface to CPL for VLTSW applications, defining a framework to add image processing capabilities to the INS SW, including a set of common image processing functions for Paranal.

7. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 7 DFS CLIP CLIP Package Image Proc. Library („clipm“)  Interfaces C++ („clipv“) Tcl/Tk („clipvTcl“) Templates for Custom Extension Custom Image Processing Lib („xxclipm“) C++ („xxclipv“) Tcl/Tk („xxclipvTcl“) CPL VLT SW

8. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 8 Main Features Provide a common framework to use image processing during instrument acquisition Extendability of the CPL to generic and specific instrument data handling / processing requirements. Data handling directly from the shared memory areas avoiding the I/O overhead. Direct access to the image processing algorithms. Standard error reporting.

9. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 9 VLTSW Interface Image Processing Library („clipm“)  Interfaces C++ („clipv“) Tcl/Tk („clipvTcl“)

10. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 10 C++ Interface Main Services: Logging and error handling Wrappers for CPL objects Interface with RTD image event library

11. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 11 Server Mode Shared Memory Write RTD App. Read Register Notify Clipv Server Create/ Remove Register/ Notify Shared Memory Acq. Process RTD Server Clipv Client Shared Memory Notify Create/ Write Notify Read Client Mode

12. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 12 Tcl interface Commands: Input/Output (7) Image basic operations (13) Image statistics (8) Image Processing (6) Others (3) Special Features Image Store Vector by references

13. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 13 Tcl Example # create clip object clipvtcl Clip # attach to camera Clip rtd_image_attach -c VIS # wait for the first image event Clip rtd_image_wait -camera VIS -timeout 10000 # Get the image from shared memory Clip rtd_image_retrieve –camera VIS –store “image1” # wait for second image even Clip rtd_image_wait -camera VIS -timeout 10000 # call the image processing algorithm Clip image_cross_correlation -npoints 10 -store “image1” –camera VIS \ -ref1 reference -maxd 7 –wsize 64 \ –mode SHIFT_ROBUST -tran transVector

14. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 14 Development and Testing Camera Simulator (Clip Image Acquisition Simulator „clipias“) Supported modes: BIAS, SKY and FILE Supported sky objects: Gaussian star Supported star parameters: pos, sigma, maxflux and gaussian norm. Template module Customizable module to develop instrument specifics interfaces (C++ and Tcl).

15. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 15 Image Processing Algorithms Image Processing Library („clipm“)  Interfaces C++ („clipv“) Tcl/Tk („clipvTcl“)

16. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 16 Image Processing Library (“clipm”) (1) 1.Cover special image processing needs 2.Serve as temporary development platform (until routines are accepted for CPL), thus providing flexibility by separating DFS and INS SW development cycles 3.Thus instrument-only

17. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 17 “clipm” (2) Provided Functionality Linear Regression Cross-Correlation Random Number Generation Image Gradient Operations (Image Resampling/Stacking) Centroiding Object / Image Alignment Aperture Characterisation Mathematical Routines Common Recipes Error Handling Macros...and future requirements! Current Schedule: Done Pending

18. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 18 clipm Extension Template (“xxclipm”) To be used for shared code between Pipeline and INS control SW Containing Pipeline and VLT Build Procedures Templates for Custom Extension Custom Image Processing Lib („xxclipm“) C++ („xxclipv“) Tcl/Tk („xxclipvTcl“)

19. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 19 How to Use the xxclipm Template DRL Developer CMM CVS Consortium Repositories ESO Observatory Pipeline DRL Pipeline Integration clipv (Wrappers) INS Developer Pipeline Responsible INS / RTD Integration Slave clipm clipm DRL (Master) Copy DFS CLIP Responsible Pipeline World INS World

20. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 20 Status & Outlook Status First prototype of the complete framework running, to be used by X- Shooter soon New module clipd: interactive display (to come soon) Next Steps Implementation: —Remaining image processing algorithms —RTD / display features —Plotting capabilities —Code Polishing Documentation: —User manual

21. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 21

22. SDD/DFS H. Lorch & M. Kiekebusch VLT 2 nd Generation Instrumentation Pipelines, 18 Apr 2007 - 22 Whom To Ask Andreas Kaufer (LPO)  Head Pascal Ballester (SDD)  Management Peter Biereichel (SDD)  Dev. RTD Mario Kiekebusch (SDD)  Dev. VLTSW Interfaces Henning Lorch (SDD)  Dev. Image Processing