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We present an implementation of the iterative flux-conserving Lucy-Richardson(L-R) deconvolution method of image restoration for maps produced by theBalloon-borne Large Aperture Submillimeter Telescope (BLAST). We have analyzedits performance and convergence extensively through simulations andcross-correlations of the deconvolved images with available highresolutionmaps. We present new science results from two BLAST surveys, in the Galacticregions K3-50 and IC 5146, further demonstrating the benefits of performingthis deconvolution.  We have resolved three clumps within a radius of 4.'5 inside the star-formingmolecular cloud containing K3-50. Combining the well-resolved dust emission mapwith available multi-wavelength data, we have constrained the Spectral EnergyDistributions (SEDs) of five clumps to obtain masses (M), bolometricluminosities (L), and dust temperatures (T). The L-M diagram has been used as adiagnostic tool to estimate the evolutionary stages of the clumps. There areclose relationships between dust continuum emission and both 21-cm radiocontinuum and 12CO molecular line emission.  The restored extended large scale structures in the Northern Streamer of IC5146 have a strong spatial correlation with both SCUBA and high resolutionextinction images. A dust temperature of 12 K has been obtained for the centralfilament. We report physical properties of ten compact sources, including sixassociated protostars, by fitting SEDs to multi-wavelength data. All of thesecompact sources are still quite cold (typical temperature below ~ 16 K) and areabove the critical Bonner-Ebert mass. They have associated low-power YoungStellar Objects (YSOs). Further evidence for starless clumps has also beenfound in the IC 5146 region.

Deconvolution of Images from BLAST 2005: Insight into the K3-50 and IC 5146 Star-Forming Regions