Goto

Collaborating Authors

Handwriting Recognition


Recognizing Handwritten Digits using scikit_learn

#artificialintelligence

Recognizing handwritten text is a problem that can be traced back to the first automatic machines that needed to recognize individual characters in handwritten documents. Think about, for example, the ZIP codes on letters at the post office and the automation needed to recognize these five digits. Perfect recognition of these codes is necessary in order to sort mail automatically and efficiently. Included among the other applications that may come to mind is OCR (Optical Character Recognition) software. OCR software must read handwritten text, or pages of printed books, for general electronic documents in which each character is well defined.


Digital Peter: Dataset, Competition and Handwriting Recognition Methods

arXiv.org Artificial Intelligence

This paper presents a new dataset of Peter the Great's manuscripts and describes a segmentation procedure that converts initial images of documents into the lines. The new dataset may be useful for researchers to train handwriting text recognition models as a benchmark for comparing different models. It consists of 9 694 images and text files corresponding to lines in historical documents. The open machine learning competition Digital Peter was held based on the considered dataset. The baseline solution for this competition as well as more advanced methods on handwritten text recognition are described in the article. Full dataset and all code are publicly available.


Fine-tuning Handwriting Recognition systems with Temporal Dropout

arXiv.org Artificial Intelligence

This paper introduces a novel method to fine-tune handwriting recognition systems based on Recurrent Neural Networks (RNN). Long Short-Term Memory (LSTM) networks are good at modeling long sequences but they tend to overfit over time. To improve the system's ability to model sequences, we propose to drop information at random positions in the sequence. We call our approach Temporal Dropout (TD). We apply TD at the image level as well to internal network representation. We show that TD improves the results on two different datasets. Our method outperforms previous state-of-the-art on Rodrigo dataset.


Motion-Based Handwriting Recognition

arXiv.org Artificial Intelligence

Sensor-Based Gesture Recognition Recently, there have It is prevalent in today's world for people to write on a been lots of researches for various ways of leveraging inertial touch screen with a smart pen, as there is a strong need to digitize motion unit (IMU) data to predict the gesture or the activity handwritten content, to make the review and indexing of users [7, 8, 9, 10, 11], but few studies make use of the IMU easier. However, despite the success of character recognition data to predict the handwriting letter due to the lack of relevant on digital devices [1, 2, 3], requiring a digitizer as the writing dataset. Oh et al. analyzed using inertial sensor based data to surface poses a possibly unnecessary restriction to overcome.


Amazon Textract adds handwriting recognition and support for new languages

#artificialintelligence

Amazon today announced small enhancements to Textract, its service that extracts printed text and other data from documents, as well as tables and forms, using machine learning. As of today, Textract now supports handwriting in English documents, in addition to files typed in Spanish, Portuguese, French, German, and Italian. Amazon rightly notes that many documents, like medical intake forms or employment applications, contain a combination of handwritten and printed text. While rivals like Google and Amazon have offered handwriting recognition-as-a-service for some time, Amazon says customer requests spurred the launch of its own solution, which works with both free-form text and text embedded in tables and forms. Amazon Web Services (AWS) customers can use the Textract handwriting recognition feature in conjunction with Amazon's Augmented AI (A2I) for improved performance.


Handwriting Recognition - Open Electronics

#artificialintelligence

In this project, I build a pen device which can be used to recognize handwritten numerals. As its input, it takes multidimensional accelerometer and gyroscope sensor data. Its output will be a simple classification that notifies us if one of several classes of movements, in this case 0 to 9 digit, has recently occurred.


Machine Learning Framework Algorithm to recognise handwriting

#artificialintelligence

Manually transcribing large amounts of handwritten data is an arduous process that's bound to be fraught with errors. Automated handwriting recognition can drastically cut down on the time required to transcribe large volumes of text, and also serve as a framework for developing future applications of machine learning. Handwritten character recognition is an ongoing field of research encompassing artificial intelligence, computer vision, and pattern recognition. An algorithm that performs handwriting recognition can acquire and detect characteristics from pictures, touch-screen devices and convert them to a machine-readable form. There are two basic types of handwriting recognition systems – online and offline.


Unconstrained On-line Handwriting Recognition with Recurrent Neural Networks

Neural Information Processing Systems

On-line handwriting recognition is unusual among sequence labelling tasks in that the underlying generator of the observed data, i.e. the movement of the pen, is recorded directly. However, the raw data can be difficult to interpret because each letter is spread over many pen locations. As a consequence, sophisticated pre-processing is required to obtain inputs suitable for conventional sequence labelling algorithms, such as HMMs. In this paper we describe a system capable of directly transcribing raw on-line handwriting data. The system consists of a recurrent neural network trained for sequence labelling, combined with a probabilistic language model.


Offline Handwriting Recognition with Multidimensional Recurrent Neural Networks

Neural Information Processing Systems

Offline handwriting recognition---the transcription of images of handwritten text---is an interesting task, in that it combines computer vision with sequence learning. In most systems the two elements are handled separately, with sophisticated preprocessing techniques used to extract the image features and sequential models such as HMMs used to provide the transcriptions. By combining two recent innovations in neural networks---multidimensional recurrent neural networks and connectionist temporal classification---this paper introduces a globally trained offline handwriting recogniser that takes raw pixel data as input. Unlike competing systems, it does not require any alphabet specific preprocessing, and can therefore be used unchanged for any language. Evidence of its generality and power is provided by data from a recent international Arabic recognition competition, where it outperformed all entries (91.4% accuracy compared to 87.2% for the competition winner) despite the fact that neither author understands a word of Arabic.


AiThority Interview with Sasha Apartsin, VP of AI at Harmon.ie

#artificialintelligence

I started developing AI algorithms for handwriting recognition at my part-time student job while doing my Undergraduate degree in Computer Science. Since then, over the last 20 years or so, I have strived to combine my work in the industry with academic research. I did my Graduate degree in Computer Vision and completed my Ph.D. in Machine Learning while having quite an intensive career in the industry in parallel with my studies. In the industry, I've worked on all kinds of data and applications, including medical imaging, educational multimedia, mobile advertising, financial time series, video, text and speech processing for public safety, and other projects. When I began working with the product and business aspects of R&D, I felt that I needed to strengthen the relevant skills, so I went back to school and got an additional Master's degree in Technology Management.