MT9P031: 500W CMOS 1/2.5英寸高清图像传感器详解

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MT9P031是一款由APTINA生产的高性能1/2.5英寸5百万像素CMOS数码影像传感器，专为高质量成像设计。这款器件的特点显著，体现了Micron公司的Digital Clarity™技术，确保了出色的图像质量和高帧率性能。以下是MT9P031的主要特性： 1. 数字清晰度：采用Micron独家的Digital Clarity™技术，该技术旨在提供清晰、无噪点的图像，无论在明亮或低光环境下都能保持良好的画面质量。 2. 高速帧率：支持高帧率处理，适合对实时视频捕捉有高要求的应用，如监控系统或运动捕捉设备。 3. 低暗电流：在光线不足的情况下也能提供稳定的图像，减少了暗环境下的噪点，提高了图像的细节表现力。 4. 全局复位释放：通过一次操作同时启动所有行的曝光，提高拍摄效率，特别适合需要快速连续拍摄的场景。 5. 灯泡模式：支持可调整的曝光时间，为摄影师提供了更大的灵活性，能够适应不同光线条件下的长时间曝光需求。 6. 快照模式：允许用户按需获取图像，方便抓拍突发或动态场景。 7. 镜像功能：支持水平和垂直镜像，便于调整镜头视角或者优化图像布局。 8. 跳行/跳列模式：通过跳过部分像素行或列，可以减小输出图像的尺寸，同时保持相同的视场范围，这对于存储空间有限的应用非常实用。 9. 像素合并：列和行的合并技术进一步提升图像质量，尤其在图像缩放时，有助于减少像素噪声和提高分辨率。 10. 简单串行接口：MT9P031采用直观的两线串行接口，简化了与外部控制器的连接，降低系统复杂性。 11. 可编程控制：传感器提供了丰富的编程选项，如增益、帧率、图像尺寸和曝光时间等，使得用户可以根据具体应用进行定制化设置。 MT9P031是一款功能强大且灵活的图像传感器，适用于各种需要高清晰度、高速响应和良好低光性能的工业级和消费级应用。为了获取最新的规格和详细信息，建议访问Micron的官方网站www.micron.com/imaging，以获取最新的产品文档和更新。

PDF: 09005aef8228843b/Source: 09005aef8228841c Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9P031_5100_2.fm - Rev. A 6/06 EN

MT9P031: 1/2.5-Inch 5-Mp Digital Image Sensor

Pixel Data Format

Micron Confidential and Proprietary

Figure 4: Pixel Array Description

Figure 5: Pixel Color Pattern Detail (Top Right Corner)

Default Readout Order

By convention, the sensor core pixel array is shown with pixel (0,0) in the top right

corner (see Figure 4). This reflects the actual layout of the array on the die. Also, the first

pixel data read out of the sensor in default condition is that of pixel (16,54).

When the sensor is imaging, the active surface of the sensor faces the scene, as shown in

Figure 6 on page 7. When the image is read out of the sensor, it is read one row at a time,

with the rows and columns sequenced, as shown in Figure 5.

(2751, 2003)

10 black columns

2 black rows

50 black rows

(0,0)

134 black columns

Active Image

2,592 x 1,944

active pixels

4 (16,54)

FIrst Clear

Pixel (10,50)

black pixels

column readout direction

...

row

readout

direction

PDF: 09005aef8228843b/Source: 09005aef8228841c Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9P031_5100_2.fm - Rev. A 6/06 EN

MT9P031: 1/2.5-Inch 5-Mp Digital Image Sensor

Pixel Data Format

Micron Confidential and Proprietary

Rows are read from the array in the following order:

1. Dark rows: If Show_Dark_Rows is set, or if Manual_BLC is clear, dark rows on the top

of the array is read out. The set of rows sampled are adjusted based on the Row_Bin

setting such that there are 8 rows after binning, as shown in the Table 6.

The Row_Skip setting is ignored for the dark row region.

If Show_Dark_Rows is clear and Manual_BLC is set, no dark rows are read from the array

as part of this step, allowing all rows to be part of the active image. This does not change

the frame time, as H

is included in the vertical blank period.

2. Active image: The rows defined by the row start, row size, bin, skip, and row mirror

settings are read out. If this set of rows includes rows read out above, those rows are

resampled, meaning that the data is invalid.

Columns are read out in the following order:

1. Dark columns: If either Show_Dark_Columns or Row_BLC is set, dark columns on the

left side of the image is read out followed by those on the right side. The set of col-

umns read is shown in Table 7.

The Column_Skip setting is ignored for the dark columns.

If neither Show_Dark_Columns nor Row_BLC is set, no dark columns are read, allowing

all columns to be part of the active image. This does not change the row time, as W

included in the vertical blank period.

2. Active image: The columns defined by column start, column size, bin, skip, and col-

umn mirror settings are read out. If this set of columns includes the columns read out

above, these columns are resampled, meaning the data is invalid.

Table 6: Dark Rows Sampled as a Function of Row_Bin

Row_Bin HDR (Dark rows after binning)

Table 7: Dark Columns Sampled as a Function of Column_Bin

Column_Bin WDC (Dark columns after binning)

080

140

320

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