How many CCD pixels are there, really?
The PAL and NTSC versions of the TRV900(e) use different CCD chips, labelled ICX216AL-13 (NTSC) and ICX217AL-13 (PAL). The pixel count is listed Sony’s web site as: NTSC: 380k pixels (340k effective), PAL: 450k pixels (420k effective). This is the pixel count per chip: each camera has three of these chips, corresponding to red, green and blue color sensitivity. The 3-CCD design gives you much better image quality than a single CCD camera would have with as many pixels. You might guess that Sony wouldn’t add more resolution to the camera than the DV format can record, but it seems that they have. For the NTSC case, each CCD chip has 34400 extra pixels beyond what’s needed to match each of the 720×480 DV format pixels with a CCD pixel. This is about 71 extra pixels per scanline beyond what the DV format can actually record. For the PAL case we have 35280 extra pixels above 720×576, or about 61 extra pixels per scanline. So, why is that? Normally, CCD chips contain several extra rows of n
Related Questions
- What is the difference in resolution between a 3G Super CCD camera outputting 6 million pixels, and Super CCD SR outputting the same amount?
- There are 2 things to Consider: • How many pixels does the camera produce? • How many pixels is the CCD (sensor) inside the camera?
- How many CCD pixels are there, really?
