12.5 Subsampling System. Ib qho piv txwv zoo thiab yooj yim ntawm subsampling yog interlaced scanning dav siv hauv TV systems. Qhov no yog categorized li ib-dimensional (1-D) thiab spatio-temporal subsampling siv tus qauv ruaj.
txhais li cas los ntawm kev sib cuam tshuam scanning?
: tv scanning nyob rau hauv uas txhua thav duab yog scanned nyob rau hauv ob successive teb uas muaj tag nrho cov khib los yog tag nrho cov kab rov tav.
Yuav ua li cas yog lub npe ntawm daim teb nyob rau hauv interlaced scanning?
thawj daim teb, ua los ntawm cov kab sib npaug sib npaug (A), ua raws li thib ob, nws cov kab scan (B) poob ntawm kab ntawm thawj teb. Cov teb interlaced ua raws ib leeg sai heev uas lawv muab tso rau hauv cov neeg saib lub qhov muag los ua ib daim duab tiav, lossis thav duab, ntawm lub vijtsam TV.
Yuav ua li cas luam theej duab raws li interlaced scanning?
Kev Tshawb Fawb : 1. Nyob rau hauv interlaced scan, scanning yuav siv sij hawm qhov chaw tshaj faib ib tug ncej. Thaum nyob rau hauv kev soj ntsuam, scanning yuav tshwm sim los ntawm scanning tag nrho cov ncej tam sim.
Yuav ua li cas interlaced scanning quizlet?
Dab tsi yog interlaced scanning? Kev tshuaj xyuas ntawm txhua kab khib-tus lej (thawj daim teb) thiab tom qab luam ntawm tag nrho cov kab sib npaug (thib ob). Ob daim teb ua ib daim duab TV tiav.
