Effects of boundary artifacts in parallel implementations of wavelet compression for large-format digital framing reconnaissance camera systems

Summary form only given. Large-format digital reconnaissance sensors (10k×10k) will soon operate at rates exceeding 100 Megapixels/sec. Operation of these airborne sensors requires lossy compression prior to real-time recording or transmission to a ground station. Wavelets have been shown to reproduce high quality imagery at both low and high compression ratios while being robust enough to efficiently compress different image classes without modifying algorithms or updating codebooks. One current implementation problem is that a full image frame is too large to compress on-board in real-time. Although parallel hardware implementations increase compression speed, undesirable reconstruction boundary artifacts can be introduced which can adversely affect the desired image analysis. This paper analyzes the effects of reconstruction artifacts on image quality