Not much equipment is necessary to get going as a camera off the store shelf can often do the trick today.

没有多少设备，要获得持续的商店货架作为相机关闭往往可以做到今天的伎俩。

youdao

Crime scene investigators use an inexpensive, off-the-shelf camera with Autodesk software to gather evidence faster and at lower cost.

FORBES: Autodesk's Brilliant Consumer Strategy

But is the idea of altering an off-the-shelf camera to penetrate clothing real?

FORBES: Hack Your iPad To See Through Clothes? An April Fool's Prank With A Real Physics Lesson

Such technologies already exist (Aerovironment plans to fit the next version of Black Widow with an off-the-shelf camera around 2cm long), but better versions of it should soon be available.

ECONOMIST: A personal eye in the sky