机器视觉Selection Points [Price]

The resolution (number of pixels) required for machine vision differs depending on the inspection needs. The level of detail and speed at which machine vision can perform is directly affected by its resolution. This site overviews the three main factors to consider when choosing the appropriate camera resolution, and how those factors affect price.

In general, the price of machine vision increases as the number of pixels in the camera increases.

Higher Lower Fewer More Price No. of pixels

Selecting the best camera resolution

When selecting the best camera resolution, we must look at three different points. Each factor is shown below with an easy-to-understand graph.

(1)视野

In general, a higher number of pixels means a smaller minimum detection size, but at a higher cost. When inspecting similar targets, if a wide field of view is necessary, a camera with a higher pixel count is required.

* The following should be used as a guide only. Imaging conditions will vary depending on the inspection target.
Contact KEYENCE有关详细信息。

Narrow ← [Field of View] → Wide
0.31 megapixels
Field of view: Narrow
2 megapixels
Field of view: Moderately narrow
5百万像素
视野:中等宽
21 megapixels
Field of view: Wide

(2) Accuracy

进行高准确性检查需要更高的分辨率。除了像素的数量外,选择最佳相机还意味着选择最佳选择(包括灰度或颜色,小或标准尺寸)进行检查。

* The following should be used as a guide only.Contact KEYENCE有关详细信息。

Low ← [Accuracy] → High
0.31 megapixels
Accuracy: Low
2 megapixels
Accuracy: Moderately low
5百万像素
Accuracy: Moderately high
21 megapixels
准确性:高

(3) Processing speed

Relatively speaking, cameras with higher resolution offer higher accuracy, but also require more processing time. The information being processed, including the number of items being looked at, also has a significant effect on image processing times. This is why it is important to verify that the processing speed under the desired inspection conditions is appropriate for the inspection line takt time.

*Contact KEYENCE有关详细信息。

Short ← [Processing Time] → Long
0.31 megapixels
Processing time: Short
2 megapixels
Processing time: Moderately short
5百万像素
Processing time: Moderately long
21 megapixels
Processing time: Long

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