Informatics. Image Processing, Base Calling and Sequence Assembly Determination of DNA sequence from fluorescent images involves the following steps: lane finding and identification, background elimination, spectral matrix conversion, base calling, and analysis/editing . At the 36 sample per day level, this process involves a significant amount of human intervention for lane calling and sequence editing. At 40,000/day, the system must permit automated transfer throughout with under 1% manual intervention. Existing automated lane finding software is capable of calling only 90% of sequencing gels without human intervention (Stein, pers. comm.). Tibbetts and coworkers (Golden, et al., 1993; Tibbetts, 1993) have applied neural networks to the base calling problem, with significant improvements over traditional methods. Giddings (1993) has also worked on this problem using expert modules which judge peaks to evaluate the confidence of base calls.
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Sources: Confidentiality Agreement (Curagen Corp), Confidential Treatment Agreement (Curagen Corp)