极客笔记本讲是Camera Sensor驱动专题的第5讲，我们讲解Camera Sensor 分辨率、帧率、曝光。
更多资源：
| 资源 | 描述 |
|---|---|
| 在线课程 | 极客笔记在线课程 |
| 知识星球 | 星球名称：深入浅出Android Camera 星球ID: 17296815 |
| 极客笔记圈 |
Camera Sensor 分辨率
| Megapixel | Also called | Pixels |
|---|---|---|
| 1MP | 720P(HD) | 1280 x 720 |
| 2MP | 1080P(FHD) | 1920 x 1080 |
| 3MP | 2048 x 1536 | |
| 4MP | 2K | 2688 x 1520 |
| 6MP | 3072 x 2048 | |
| 8MP | 4K | 3840 x 2160 |
| 13MP | 4208 x 3120 | |
| 64MP | 9248 x 6944 |
Sub Sample/Down Sample Mode
Binning Mode
Output Image Window
Camera Sensor 分辨率控制
Camera Sensor 帧率
FPS(Framerate): Sensor每秒输出多少帧图像
FPS = VTPixelClock/frameLengthLines/lineLengthPixelClock
- VTPixelClock(vt_clk):Video Timing Clock, From sensor PLL
-
frameLengthLines(vts):对应sensor实际寄存器值，height + VBlank
-
lineLengthPixelClock(hts):对应sensor实际寄存器值, width + HBlank
Camera Sensor 曝光
LineReadoutTime = LinelengthPixelClock / VTPixelClock
LineCount = ExposureTime / LineReadoutTime
- ExposureTime: Sensor 曝光时间
LineCount <= FramelengthLines – Offset(4, 6, 8)
