Abstract
HDTV is new television system, that will replace NTSC television system. It is vertical resolution is 1125. The still pictures of rectal mucosa were able to take by HDTV camera (FOR. A HMC-1000). Rigid proctosigmoidoscopy (Olympus) was used and connected HDTV camera by C-mount adaptor (Olympus). (Figure 2) Charge coupled device (CCD) was used in HMC-1000 camera, HMC-1000 system was showed in Figure 1. Releasing time of the camera is 0.6 sec. The memory was needed 3 megabyte for one color still picture. Fine color still pictures of rectal mucosa had been taken. (Figure 5).