图 书 馆
焦流：通过散焦和差分运动测量深度和速度Focal flow: Measuring depth and velocity from defocus and differential motion |
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| 课程网址: | http://videolectures.net/eccv2016_alexander_focal_flow/ |
| 主讲教师: | Emma Alexander |
| 开课单位: | 哈佛大学 |
| 开课时间: | 2016-10-24 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We present the focal flow sensor. It is an unactuated, monocular camera that simultaneously exploits defocus and differential motion to measure a depth map and a 3D scene velocity field. It does so using an optical-flow-like, per-pixel linear constraint that relates image derivatives to depth and velocity. We derive this constraint, prove its invariance to scene texture, and prove that it is exactly satisfied only when the sensor’s blur kernels are Gaussian. We analyze the inherent sensitivity of the ideal focal flow sensor, and we build and test a prototype. Experiments produce useful depth and velocity information for a broader set of aperture configurations, including a simple lens with a pillbox aperture. |
| 关 键 词: | 焦点流量传感器; 单目相机; 固有灵敏度 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2022-11-22：chenjy |
| 最后编审: | 2022-11-22：chenjy |
| 阅读次数: | 25 |