Digital Representations of the Real World

9

Sensor Fusion

Andreas Kolb, Jiejie Zhu, and Ruigang Yang

9.1 Introduction

Many means to recover scene depth have been introduced so far. They range

from specialized sensors that can directly return depth (e.g., LiDAR sensors

and ToF sensors described in Chapter 4) to the most widely used stereo

matching algorithms in Chapter 8 that require just two or more images as

input. As with many real-world situations, for example in the context of

cultural heritage (Chapter 22), there is no single method that can claim

to be the panacea for all and every application that relies on depth data.

As shown in Table 9.1, these different depth sensing approaches all