Maswali ya upigaji picha

Majibu na maelezo huonekana unapojibu maswali.

1. Je, ni hitaji gani la msingi la picha za uingizaji ili upigaji picha kufanya kazi?
   • Lazima zichukuliwe na flash
   • Lazima ziingiliane kwa kiasi kikubwa na kutazama tukio kutoka pembe tofauti
   • Lazima zote zichukuliwe kutoka kwa nafasi sawa
   • Wanapaswa kuwa nyeusi na nyeupe
2. Je, Structure-from-Motion (SfM) inakokotoa nini?
   • Rangi za kila pikseli pekee
   • Hali ya taa ya eneo la tukio
   • Video ya kamera inayotembea
   • Nafasi/mielekeo ya kamera na seti ndogo ya pointi za 3D kwa wakati mmoja
3. Marekebisho ya kifungu hupunguza nini?
   • Hitilafu ya kukataliwa kwenye kamera zote na pointi za 3D
   • Jumla ya saizi ya faili ya picha
   • Idadi ya kamera zinazotumiwa
   • Matumizi ya betri wakati wa kunasa
4. Je, ni nini jukumu la Multi-View Stereo (MVS) baada ya SfM?
   • Ili kufuta picha asili
   • Kubana kamera unaleta
   • Ili kuimarisha pointi chache kwenye wingu mnene au matundu
   • Ili kuchukua tena picha kiotomatiki
5. Kwa nini sehemu za udhibiti wa ardhini (GCPs) mara nyingi hutumiwa katika upimaji wa upimaji wa upimaji picha?
   • Ili kufanya picha zionekane angavu
   • Ili kuongeza idadi ya picha zinazohitajika
   • Ili kuondoa hitaji la kamera
   • Kuweka kielelezo kwa kiwango cha ulimwengu halisi na kuratibu kwa usahihi
6. Why can a textureless or strongly reflective surface be difficult for feature-based photogrammetry?
   • It guarantees that every camera pose is known exactly
   • It may provide few stable, repeatable visual correspondences across views
   • It makes image overlap unnecessary
   • It automatically supplies surveyed ground coordinates
7. What distinguishes camera intrinsics from camera pose in a photogrammetric reconstruction?
   • Intrinsics are scene-point coordinates and pose is only JPEG quality
   • Both terms mean only the camera's model name
   • Intrinsics describe projection properties such as focal length; pose describes position and orientation
   • Pose supplies the lens's distortion coefficients while intrinsics gives its geographic location
8. In a calibrated central-camera photogrammetry model, what geometric relation underlies triangulation?
   • A scene point, camera center, and its projection lie on a viewing ray
   • All scene points must share the same image pixel
   • Every photograph supplies absolute depth without another constraint
   • The camera center is always identical to the scene point