02601nam a2200265   4500001000700000010001500007090001100022100004100033101000800074200005100082210003700133215002900170330150700199606003601706606003001742606002301772606004201795606004101837606003401878700002601912955002301938995012301961995012602084995012502210384668  a0849309034  a384668  a20080318d2001       y0pory50      ba  aeng  aForensic uses of digital imagingfJohn C. Russ  aBoca Raton, FL [etc.]cCRCd2001  aviii, 192 p.cil.d25 cm  a1. Digital Cameras and Forensic Imaging: Introduction. Why go digital? Uses of digital imagery. Film as a light sensor. Tonal and spatial resolution, and their consequences. Color response. Digital photography. Maintaining chain-of-control with digital images. Digital video. Scanners. Taking good pictures. Presenting pictures in the courtroom. Summary. 2. Processing Digital Images: Noise in digital images. Noise reduction methods. Median filtering. Processing color images. Nonrandom noise. Adjusting contrast, brightness and gamma. Adjusting color balance. Adjusting size (magnification). Spatial distortions. Other applications. 3. Enhancement: Enhancement of detail. Sharpening. Sharpening color images. Other enhancement techniques. Less common processing methods. Color separation and filtering. Frequency space (Fourier processing). High and low pass filtering, band-pass filtering, and periodic noise. Deconvolution, or removal of system defects. Measuring image resolution. Resolution from the Fourier transform. Tonal (gray scale) resolution. Detecting compression. Detecting forgeries. Maintaining records. 4. Identification. The imaging chain. Surveillance video cameras. Recording and playback problems. Pixels and resolution elements. Noise and tonal resolution. Other shortcomings. Enhancement. Image restoration. Recognition and identification. Identification of faces. Identification by DNA. Misdirection and mistakes. 5. The Expert Witness: Working with counsel, judges and juries.  aPROCESSAMENTO DE IMAGEM9346081  aDIGITALIZAÇÃO9118786  aFOTOGRAFIA9243607  aTÉCNICA DE INVESTIGAÇÃO9344784  aIDENTIFICAÇÃO DE PESSOAS9343105  aVIGILÂNCIA POLICIAL9328926  aRUSSbJohn C.9354642  xCompra (€ 81,26)  1052022-06-066PJ286609414763aPJcPJfPJ128660n2022-06-06o0p0.00rMOxCompra zRequisitado. Documentos. € 81,26  104PJ_22_000000000000000_A_4452022-06-066PJ332739414764aPJcPJfPJ133273kPJ22.A.44n2022-06-06o0p0.00rMOxCompra   104PJCD_223_00000000000000052022-06-066PJCD2239414765aPJcPJfPJ1CD223_27kPJCD223n2022-06-06o0p0.00rMOxCompra