9/9/2023 0 Comments Emulsion de scott targetOur proposed method enables fast image alignment by identifying matching features in multi- sensor images. Using this cue, we construct a robust feature descriptor based on the magnitudes of the oriented edges. The shape of the object captured in a multi- sensor images can be determined by comparing variability of contrast using corresponding edges across multi- sensor image. Oriented Edge-Based Feature Descriptor for Multi- Sensor Image Alignment and Enhancementĭirectory of Open Access Journals (Sweden)įull Text Available In this paper, we present an efficient image alignment and enhancement method for multi- sensor images. In particular, the report shows that the RBD optics may be directly integrated in the Pointing Focus and Centering (PFC) sensor, and that the IBD optics may use the same basic common configuration as the PFC/RBD package This report, which completes the contract, examines ways in which the Return Beam Diagnostic (RBD) package and Incident Beam Diagnostic (IBD) packages may be reconfigured to a more integrated package. Prior reports dealt with the Main Beam Alignment System, and with Multipass Amplifier Alignment Concepts. Under Contract 3772003 to the Lawrence Livermore Laboratory, Aerojet ElectroSystems Company has investigated a number of alignment system design topics for the NOVA and SHIVA upgrade lasers. NOVA integrated alignment/diagnostic sensors The results of this work have important consequences for future missions with stringent attitude requirements and where misalignment variations due to variations in the temperature will be significant. In addition, some of the basic assumptions made in the prelaunch analysis of the alignments of the SMM are examined. Comparison with the results from the previous study reveals the limitations of the heuristic approach. Here, new sensor alignment algorithms which better quantify the dependence of the alignments on the temperature are developed and applied to the SMM data. We describe reticle choices and other alignment references, insertion of alignment beams, principles of operation of the Chamber Center Reference System 2048 and Target Alignment Sensor, and the anticipated alignment sequence that will occur between shotsĪttitude sensor alignment calibration for the solar maximum missionĪn earlier heuristic study of the fine attitude sensors for the Solar Maximum Mission (SMM) revealed a temperature dependence of the alignment about the yaw axis of the pair of fixed-head star trackers relative to the fine pointing Sun sensor. The scope of the task dictates an automated system that implements parallel processes. This must be accomplished for all beamlines in a time consistent with planned shot rates and yet, in the front end and main laser, beam control functions cannot be initiated until the amplifiers have sufficiently cooled so as to minimize dynamic thermal distortions during and after alignment and wavefront optimization. At the target, this includes adjustment of beam focus to obtain the correct spot size. In general, the alignment system must establish and maintain the correct relationships between beam position, beam angle, laser component clear apertures, and the target. The operational requirements of the National Ignition Facility (NIF) place tight constraints upon its alignment system. International Nuclear Information System (INIS)īoege, S.J. NIF pointing and centering systems and target alignment using a 351 nm laser source The concept for this target assembly has evolved over many years with earlier versions used to test the Mars Observer Laser Altimeter (MOLA), the Geoscience Laser Altimeter System (GLAS), and the Mercury Laser Altimeter (MLA) space-based instruments. 1) has been developed to measure the boresite alignment of LRO's Lunar Orbiter Laser Altimeter (LOLA) instrument at the spacecraft level. Stanley Riris, Haris Cavanaugh, John Liiva, Peter Rodriguez, MichaelĪ compact and portable target assembly (Fig. Target Assembly to Check Boresight Alignment of Active Sensors
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