We propose Hierarchical Text Spotter (HTS), a novel method for the joint task
of word-level text spotting and geometric layout analysis. HTS can recognize
text in an image and identify its 4-level hierarchical structure: characters,
words, lines, and paragraphs. The proposed HTS is characterized by two novel
components: (1) a Unified-Detector-Polygon (UDP) that produces Bezier Curve
polygons of text lines and an affinity matrix for paragraph grouping between
detected lines; (2) a Line-to-Character-to-Word (L2C2W) recognizer that splits
lines into characters and further merges them back into words. HTS achieves
state-of-the-art results on multiple word-level text spotting benchmark
datasets as well as geometric layout analysis tasks.

我们提出了一种名为层级文本识别器（HTS）的新方法，用于识别图像中的文本并确定其字符、单词、行和段落的四级层级结构。HTS 通过两个新颖组件实现：(1) 统一检测器多边形（UDP），可以生成文本行的贝塞尔曲线多边形以及用于检测线之间自然分组的亲和矩阵；(2) 行 - 字符 - 单词（L2C2W）识别器，可以将行分割为字符，再将它们组合成单词。HTS 在多个单词级文本识别基准数据集以及几何布局分析任务中取得了最先进的结果。

用于联合文本检测与布局分析的层级文本识别

Hierarchical Text Spotter for Joint Text Spotting and Layout Analysis

We organize a competition on hierarchical text detection and recognition. The
competition is aimed to promote research into deep learning models and systems
that can jointly perform text detection and recognition and geometric layout
analysis. We present details of the proposed competition organization,
including tasks, datasets, evaluations, and schedule. During the competition
period (from January 2nd 2023 to April 1st 2023), at least 50 submissions from
more than 20 teams were made in the 2 proposed tasks. Considering the number of
teams and submissions, we conclude that the HierText competition has been
successfully held. In this report, we will also present the competition results
and insights from them.

我们组织了一个层级文本检测和识别的比赛，以促进对深度学习模型和系统的研究，这些模型和系统可以共同执行文本检测、识别和几何布局分析。比赛期间至少有 20 个团队提交了 50 份申请，本报告中还将介绍比赛结果和洞见。