DLoRA-TrOCR: Mixed Text Mode Optical Character Recognition Based On Transformer
- URL: http://arxiv.org/abs/2404.12734v3
- Date: Tue, 23 Apr 2024 05:36:31 GMT
- Title: DLoRA-TrOCR: Mixed Text Mode Optical Character Recognition Based On Transformer
- Authors: Da Chang, Yu Li,
- Abstract summary: Multi- fonts, mixed scenes and complex layouts seriously affect the recognition accuracy of traditional OCR models.
We propose a parameter-efficient mixed text recognition method based on pre-trained OCR Transformer, namely DLoRA-TrOCR.
- Score: 12.966765239586994
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: With the continuous development of Optical Character Recognition (OCR) and the expansion of application fields, text recognition in complex scenes has become a key challenge. Factors such as multiple fonts, mixed scenes and complex layouts seriously affect the recognition accuracy of traditional OCR models. Although OCR models based on deep learning have performed well in specific fields or similar datasets in recent years, the generalization ability and robustness of the model are still a big challenge when facing complex environments with multiple scenes. Furthermore, training an OCR model from scratch or fine-tuning all parameters is very demanding on computing resources and inference time, which limits the flexibility of its application. This study focuses on a fundamental aspect of mixed text recognition in response to the challenges mentioned above, which involves effectively fine-tuning the pre-trained basic OCR model to demonstrate exceptional performance across various downstream tasks. To this end, we propose a parameter-efficient mixed text recognition method based on pre-trained OCR Transformer, namely DLoRA-TrOCR. This method embeds DoRA into the image encoder and LoRA into the internal structure of the text decoder, enabling efficient parameter fine-tuning for downstream tasks. Experiments show that compared to similar parameter adjustment methods, our model DLoRA-TrOCR has the smallest number of parameters and performs better. It can achieve state-of-the-art performance on complex scene datasets involving simultaneous recognition of mixed handwritten, printed and street view texts.
Related papers
- A Lightweight Multi-Module Fusion Approach for Korean Character Recognition [0.0]
SDA-Net is a lightweight and efficient architecture for robust single-character recognition.<n>It achieves state-of-the-art accuracy on challenging OCR benchmarks, with significantly faster inference.
arXiv Detail & Related papers (2025-04-08T07:50:19Z) - Lightweight and Direct Document Relevance Optimization for Generative Information Retrieval [49.669503570350166]
Generative information retrieval (GenIR) is a promising neural retrieval paradigm that formulates document retrieval as a document identifier (docid) generation task.<n>Existing GenIR models suffer from token-level misalignment, where models trained to predict the next token often fail to capture document-level relevance effectively.<n>We propose direct document relevance optimization (DDRO), which aligns token-level docid generation with document-level relevance estimation through direct optimization via pairwise ranking.
arXiv Detail & Related papers (2025-04-07T15:27:37Z) - VISTA-OCR: Towards generative and interactive end to end OCR models [3.7548609506798494]
VISTA-OCR is a lightweight architecture that unifies text detection and recognition within a single generative model.
Built on an encoder-decoder architecture, VISTA-OCR is progressively trained, starting with the visual feature extraction phase.
To enhance the model's capabilities, we built a new dataset composed of real-world examples enriched with bounding box annotations and synthetic samples.
arXiv Detail & Related papers (2025-04-04T17:39:53Z) - LMV-RPA: Large Model Voting-based Robotic Process Automation [0.0]
This paper introduces LMV-RPA, a Large Model Voting-based Robotic Process Automation system to enhance OCR.<n>LMV-RPA integrates outputs from OCR engines such as Paddle OCR, Tesseract OCR, Easy OCR, and DocTR with Large Language Models.<n>It achieves 99 percent accuracy in OCR tasks, surpassing baseline models with 94 percent, while reducing processing time by 80 percent.
arXiv Detail & Related papers (2024-12-23T20:28:22Z) - See then Tell: Enhancing Key Information Extraction with Vision Grounding [54.061203106565706]
We introduce STNet (See then Tell Net), a novel end-to-end model designed to deliver precise answers with relevant vision grounding.
To enhance the model's seeing capabilities, we collect extensive structured table recognition datasets.
arXiv Detail & Related papers (2024-09-29T06:21:05Z) - UNIT: Unifying Image and Text Recognition in One Vision Encoder [51.140564856352825]
UNIT is a novel training framework aimed at UNifying Image and Text recognition within a single model.
We show that UNIT significantly outperforms existing methods on document-related tasks.
Notably, UNIT retains the original vision encoder architecture, making it cost-free in terms of inference and deployment.
arXiv Detail & Related papers (2024-09-06T08:02:43Z) - Learning Robust Named Entity Recognizers From Noisy Data With Retrieval Augmentation [67.89838237013078]
Named entity recognition (NER) models often struggle with noisy inputs.
We propose a more realistic setting in which only noisy text and its NER labels are available.
We employ a multi-view training framework that improves robust NER without retrieving text during inference.
arXiv Detail & Related papers (2024-07-26T07:30:41Z) - Adversarial Training with OCR Modality Perturbation for Scene-Text Visual Question Answering [8.382903851560595]
Scene-Text Visual Question Answering (ST-VQA) aims to understand scene text in images and answer questions related to the text content.
Most existing methods heavily rely on the accuracy of Optical Character Recognition (OCR) systems.
We propose a multimodal adversarial training architecture with spatial awareness capabilities.
arXiv Detail & Related papers (2024-03-14T11:22:06Z) - LOCR: Location-Guided Transformer for Optical Character Recognition [55.195165959662795]
We propose LOCR, a model that integrates location guiding into the transformer architecture during autoregression.
We train the model on a dataset comprising over 77M text-location pairs from 125K academic document pages, including bounding boxes for words, tables and mathematical symbols.
It outperforms all existing methods in our test set constructed from arXiv, as measured by edit distance, BLEU, METEOR and F-measure.
arXiv Detail & Related papers (2024-03-04T15:34:12Z) - SSR-Encoder: Encoding Selective Subject Representation for Subject-Driven Generation [39.84456803546365]
SSR-Encoder is a novel architecture designed for selectively capturing any subject from single or multiple reference images.
It responds to various query modalities including text and masks, without necessitating test-time fine-tuning.
Characterized by its model generalizability and efficiency, the SSR-Encoder adapts to a range of custom models and control modules.
arXiv Detail & Related papers (2023-12-26T14:39:11Z) - UPOCR: Towards Unified Pixel-Level OCR Interface [36.966005829678124]
We propose UPOCR, a simple-yet-effective generalist model for Unified Pixel-level OCR interface.
Specifically, the UPOCR unifies the paradigm of diverse OCR tasks as image-to-image transformation and the architecture as a vision Transformer (ViT)-based encoder-decoder.
Experiments are conducted on three pixel-level OCR tasks including text removal, text segmentation, and tampered text detection.
arXiv Detail & Related papers (2023-12-05T11:53:17Z) - Turning a CLIP Model into a Scene Text Spotter [73.63953542526917]
We exploit the potential of the large-scale Contrastive Language-Image Pretraining (CLIP) model to enhance scene text detection and spotting tasks.
This backbone utilizes visual prompt learning and cross-attention in CLIP to extract image and text-based prior knowledge.
FastTCM-CR50 introduces an instance-language matching process to enhance the synergy between image and text embeddings.
arXiv Detail & Related papers (2023-08-21T01:25:48Z) - RBSR: Efficient and Flexible Recurrent Network for Burst
Super-Resolution [57.98314517861539]
Burst super-resolution (BurstSR) aims at reconstructing a high-resolution (HR) image from a sequence of low-resolution (LR) and noisy images.
In this paper, we suggest fusing cues frame-by-frame with an efficient and flexible recurrent network.
arXiv Detail & Related papers (2023-06-30T12:14:13Z) - Noise-Robust Dense Retrieval via Contrastive Alignment Post Training [89.29256833403167]
Contrastive Alignment POst Training (CAPOT) is a highly efficient finetuning method that improves model robustness without requiring index regeneration.
CAPOT enables robust retrieval by freezing the document encoder while the query encoder learns to align noisy queries with their unaltered root.
We evaluate CAPOT noisy variants of MSMARCO, Natural Questions, and Trivia QA passage retrieval, finding CAPOT has a similar impact as data augmentation with none of its overhead.
arXiv Detail & Related papers (2023-04-06T22:16:53Z) - 3D Rendering Framework for Data Augmentation in Optical Character
Recognition [8.641647607173864]
We propose a data augmentation framework for Optical Character Recognition (OCR)
The proposed framework is able to synthesize new viewing angles and illumination scenarios.
We demonstrate the performance of our framework by augmenting a 15% subset of the common Brno Mobile OCR dataset.
arXiv Detail & Related papers (2022-09-27T19:31:23Z) - PP-OCRv3: More Attempts for the Improvement of Ultra Lightweight OCR
System [11.622321298214043]
PP-OCRv3 upgrades the text detection model and text recognition model in 9 aspects based on PP-OCRv2.
Experiments on real data show that the hmean of PP-OCRv3 is 5% higher than PP-OCRv2 under comparable inference speed.
arXiv Detail & Related papers (2022-06-07T04:33:50Z) - Donut: Document Understanding Transformer without OCR [17.397447819420695]
We propose a novel VDU model that is end-to-end trainable without underpinning OCR framework.
Our approach achieves state-of-the-art performance on various document understanding tasks in public benchmark datasets and private industrial service datasets.
arXiv Detail & Related papers (2021-11-30T18:55:19Z) - TrOCR: Transformer-based Optical Character Recognition with Pre-trained
Models [47.48019831416665]
We propose an end-to-end text recognition approach with pre-trained image Transformer and text Transformer models, namely TrOCR.
TrOCR is simple but effective, and can be pre-trained with large-scale synthetic data and fine-tuned with human-labeled datasets.
Experiments show that the TrOCR model outperforms the current state-of-the-art models on both printed and handwritten text recognition tasks.
arXiv Detail & Related papers (2021-09-21T16:01:56Z) - Rethinking Text Line Recognition Models [57.47147190119394]
We consider two decoder families (Connectionist Temporal Classification and Transformer) and three encoder modules (Bidirectional LSTMs, Self-Attention, and GRCLs)
We compare their accuracy and performance on widely used public datasets of scene and handwritten text.
Unlike the more common Transformer-based models, this architecture can handle inputs of arbitrary length.
arXiv Detail & Related papers (2021-04-15T21:43:13Z) - Scene Text Image Super-Resolution in the Wild [112.90416737357141]
Low-resolution text images are often seen in natural scenes such as documents captured by mobile phones.
Previous single image super-resolution (SISR) methods are trained on synthetic low-resolution images.
We pro-pose a real scene text SR dataset, termed TextZoom.
It contains paired real low-resolution and high-resolution images captured by cameras with different focal length in the wild.
arXiv Detail & Related papers (2020-05-07T09:18:59Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.