A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.

针孔相机模型(Pinhole Camera Model)是一个理想的相机模型，是最基础的相机模型。 很多SLAM算法会直接使用去 畸变 后的图像，去畸变后的图像往往会用针孔相机模型来描述，因此了解这个模型非常重要。

The pinhole camera model describes the mathematical relationship between the coordinates of a point in three-dimensional space and its projection onto the image plane of an ideal pinhole camera, where the camera aperture is described as a point and no lenses are used to focus light.

2022年1月9日 · 本篇文章主要用于介绍针孔相机模型（Pinhole Camera Model， PCM），有些场景也翻译为 小孔相机模型。这种成像方式目前常见于当前基于Lenses + Cameras的成像系统。 简单的成像系统

2024年9月4日 · 针孔相机模型（Pinhole Camera Model）是计算机视觉和计算机图形学中的一个基础且重要的概念，它描述了三维空间中的点与它们在理想针孔相机的图像平面上的投影之间的数学关系。

2024年10月13日 · Pinhole photography is lensless photography. A tiny hole replaces the lens. Light passes through the hole; an image is formed in the camera. Pinhole cameras are small or large, improvised or designed with great care.

2022年3月14日 · In short, it's a camera that is stripped back to its most fundamental elements. Basically it's nothing more than a lightproof space with a hole – which is the aperture – perforated into it. Light passes through the aperture, which projects the scene from outside the camera onto the opposite internal side.

What Is a Pinhole Camera? The pinhole camera is the simplest kind of camera. It does not have a lens. It just makes use of a tiny opening (a pinhole-sized opening) to focus all light rays within the smallest possible area to obtain an image, as clearly as possible. The simple image formed using a pinhole camera is always inverted.

Suppose the camera axis is in the direction of (x=0, y=0, z=1) in its own coordinate system. What is the camera axis in world coordinates given the extrinsic parameters R, t. Suppose a camera at height y=h (x=0,z=0) observes a point at (u,v) known …

2014年4月11日 · How a camera without a lens can be used to take pictures and explanations of how a pinhole camera works. Pinhole cameras rely on the fact that light travels in straight lines – a principle called the rectilinear theory of light. This makes the image appear upside down in …