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Compared with the dark channel and bright channel, salient region detection can reflect the regions with salient structures from the complex background more accurately, which can guide the latent image recovery in the deblurring process.
In our experiments, [lambda] is set to 0.4 to decompose the texture component of latent image for fingerprint segmentation.
Other methods used for the purpose currently included the following: In this method the X-rays latent image is first converted to visible light, and then to video signals (via specific camera).
Ironically, an early (circa 1987) integrated CR system for chest imaging, the Konica Direct Digitizer (KDD), incorporated a linear scanning mechanism (rather than advancing the PSP imaging plate) and used a special PSP material that had an extremely short luminescence rate and concomitant rapid spontaneous fading of the latent image. The KDD mechanism used a solid state laser and galvanometer to deflect the beam.
Speaking about the new Rs 100 note, the front of the note contains a see-through register with denominational numeral 100, a latent image with the numeral and also a Devanagari version of the same.
OVERT SEMI-COVERT COVERT Guilloche Laser image DNA taggants Rainbow printing Polarised image Molecular taggants Latent image Security fibres Security fibres Colour-changing ink Reactive inks Magnetic element Tactile patterns Microprint Anti-Stokes inks Hologram UV dull paper Reactive inks Watermark Thermochromic ink Legend colour scheme Features present in Features added in Feature present in both first draft and final version draft, but removed final version from final version
Duosecure+ adds currency-level intaglio print with micro text, fine tactile lines and a latent image. Both label types carry unique QR codes for verification.
With computed radiography systems, the latent image is formed as an electronic signal, which can be digitized and stored for display on a computer monitor, printed on a laser printer or transmitted for long-term storage.
Compatible with most existing imagers, Thermal Direct, says KPG, speeds platemaking, resists scratches, holds 1-98% dots at 200 lines per inch, retains a latent image for as long as a week, prints as many as 75,000 impressions, and requires no debris-removal system.
The note's security features also include a multi-toned watermark that has the same motif as the hologram (a stag surrounded with floral motifs) and the denomination, a latent image, an intaglio raster feature, a raised embossed feature for the visually impaired, see through register, SICPA's Spark Live[R]--an optically variable magnetic ink feature and--making its appearance for the first time in a banknote--De La Rue's new Active[TM] windowed security thread.