Image feature detection is the basis of the techniques and applications of image processing. However, the use of phase information for image feature detection is a new research focus.

图像特征检测是图像处理技术与应用的基础，而利用相位信息进行图像特征检测是新的研究方向。

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The new iPod touch includes a 5 megapixel iSight camera with autofocus, support for 1080p video recording with video image stabilization, face detection and an LED flash, and the new panorama feature that lets you capture gorgeous panoramic photos by simply moving the camera across a scene.

ENGADGET: Apple refreshes iPod nano: 2.5-inch multitouch display, 16GB, Bluetooth, available this October for $149