Opened 12 years ago

Last modified 11 years ago

#91 new task

Automatic detection of scan timing offsets

Reported by: benj Owned by: mark1
Priority: alpha 4 medium Milestone: The Glorious Future
Component: Processing: general Keywords: scan timing
Cc: mggr Other processors:

Description

It would be helpful to have some kind of automatic method for detecting correct scan timing offsets for scan lines, to save repeated trial-and-error processing to find the correct offset.

Possible approaches so far include edge detection (Mike), Fourier transforms (Steve) or neural networks (Ben)

Attachments (3)

Scantime_investigation.odt (233.8 KB) - added by mark1 11 years ago.
frame_buffer_investigation2.odt (330.8 KB) - added by mark1 11 years ago.
framebuffer_invest.xls (90.0 KB) - added by mark1 11 years ago.

Download all attachments as: .zip

Change History (5)

comment:1 Changed 11 years ago by benj

  • Owner changed from benj to mark1

comment:2 Changed 11 years ago by mggr

Attempted with edge detection (nip2) and measuring total length of edges in image for various offsets, on the assumption that incorrect timing = more wobbles = longer edges. Didn't work :/

Changed 11 years ago by mark1

Changed 11 years ago by mark1

Changed 11 years ago by mark1

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