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CHIRLA: Comprehensive High-resolution Identification and Re-identification for Large-scale Analysis

Created by
  • Haebom

Author

Bessie Dominguez-Dager, Felix Escalona, Francisco Gomez-Donoso, Miguel Cazorla

Outline

CHIRLA is a novel video-based dataset for long-term person re-identification (Re-ID). Unlike previous studies that focused on short-term appearance changes, CHIRLA aims to be a robust system that handles long-term changes due to clothing and body changes. Recorded over seven months in four indoor environments and using seven cameras, CHIRLA includes 22 individuals, over five hours of video, and approximately one million bounding boxes and identification annotations. We define a benchmark protocol that encompasses diverse and challenging scenarios, such as occlusion, reappearance, and multi-camera conditions, to facilitate the development and evaluation of Re-ID algorithms that can perform reliably in long-term, real-world scenarios. The benchmark code is publicly available.

Takeaways, Limitations

Takeaways:
We present CHIRLA, a new large-scale dataset for long-term person re-identification.
Supports the development of realistic Re-ID algorithms that reflect various changes in the real environment (clothing, appearance changes, etc.).
We provide benchmark protocols that cover a variety of challenging scenarios, including occlusion, re-emergence, and multi-camera conditions.
Public benchmark code facilitates the development and evaluation of Re-ID algorithms.
Limitations:
The number of individuals included in the dataset (22) may be relatively small.
As this dataset is limited to indoor environments, it may not reflect the diversity of outdoor environments.
There may be a possibility of annotation errors due to the semi-automatic labeling method.
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