Concept

Optical character recognition

Related publications (408)

Model-Based Compressive Sensing for Multi-Party Distant Speech Recognition

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

We leverage the recent algorithmic advances in compressive sensing, and propose a novel source separation algorithm for efficient recovery of convolutive speech mixtures in spectro-temporal domain. Compared to the common sparse component analysis technique ...

Idiap2011

Model-Based Compressive Sensing for Multi-Party Distant Speech Recognition

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

IEEE Service Center, 445 Hoes Lane, PO Box 1331, Piscataway, NJ 08855-1331 USA2011

Model-based Compressive Sensing for Multi-party Distant Speech Recognition

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

2011

BROADBAND BEAMPATTERN FOR MULTI-CHANNEL SPEECH ACQUISITION AND DISTANT SPEECH RECOGNITION

Hervé Bourlard, Philip Neil Garner, Mohammadjavad Taghizadeh

Spatial filtering is the fundamental characteristic of microphone array based signal acquisition which plays an important role in applications such as speech enhancement and distant speech recognition. In the array processing literature, this property is f ...

Idiap2011

Natural Activation for Gesture Recognition Systems

Daniel Thalmann, Patrick Salamin, Frédéric Vexo, Mathieu Hopmann

Gesture recognition is becoming a popular way of interaction, but still suffers of important drawbacks to be integrated in everyday life devices. One of these drawbacks is the activation of the recognition system – trigger gesture - which is generally tiri ...

2011

Devanagari Character Recognition towards natural Human-Computer Interaction

Pulkit Goyal, Sapan Diwakar

Human-computer interaction is a growing research area. There are several ways of interaction with the computer. Handwriting has continued to persist as a means of communication and recording information in the day to day life even with the introduction of ...

2010

Implementation of an image recognition algorithm on the DM6446 DaVinci Processor

Pierre-André Farine, Sara Grassi Pauletti, Pradyumna Ayyalasomayajula

We are developing an Alternative and Augmentative Communication (AAC) portable device called PictoBar which is used in speech rehabilitation therapy. PictoBar recognizes barcodes and images, such as pictograms and pictures. Then it plays a sound message as ...

2010

Automatic Time Skew Detection and Correction

Danil Korchagin

In this paper, we propose a new approach for the automatic time skew detection and correction for multisource audiovisual data, recorded by different cameras/recorders during the same event. All recorded data are successfully tested for potential time skew ...

Idiap2010

Enhanced Phone Posteriors for Improving Speech Recognition Systems

Hervé Bourlard, Hamed Ketabdar

Using phone posterior probabilities has been increasingly explored for improving automatic speech recognition (ASR) systems. In this paper, we propose two approaches for hierarchically enhancing these phone posteriors, by integrating long acoustic context, ...

2010

High Frame-rate TCSPC-FLIM Using a Novel SPAD-based Image Sensor

Edoardo Charbon, Marek Gersbach, Matthew Fishburn

Imaging techniques based on time-correlated single photon counting (TCSPC), such as fluorescence lifetime imaging microscopy (FLIM), rely on fast single-photon detectors as well as timing electronics in the form of time-to-digital or time-to-analog convert ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

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