Search Results for author: Christian Bartz

Found 15 papers, 13 papers with code

Weakly Supervised Scene Text Detection using Deep Reinforcement Learning

1 code implementation13 Jan 2022 Emanuel Metzenthin, Christian Bartz, Christoph Meinel

In this paper we propose a weak supervision method for scene text detection, which makes use of reinforcement learning (RL).

reinforcement-learning Reinforcement Learning (RL) +2

Synthesis in Style: Semantic Segmentation of Historical Documents using Synthetic Data

2 code implementations14 Jul 2021 Christian Bartz, Hendrik Raetz, Jona Otholt, Christoph Meinel, Haojin Yang

One of the most pressing problems in the automated analysis of historical documents is the availability of annotated training data.

Semantic Segmentation

One Model to Reconstruct Them All: A Novel Way to Use the Stochastic Noise in StyleGAN

1 code implementation21 Oct 2020 Christian Bartz, Joseph Bethge, Haojin Yang, Christoph Meinel

Generative Adversarial Networks (GANs) have achieved state-of-the-art performance for several image generation and manipulation tasks.

Image Denoising Image Generation

MeliusNet: Can Binary Neural Networks Achieve MobileNet-level Accuracy?

1 code implementation16 Jan 2020 Joseph Bethge, Christian Bartz, Haojin Yang, Ying Chen, Christoph Meinel

However, the binarization of weights and activations leads to feature maps of lower quality and lower capacity and thus a drop in accuracy compared to traditional networks.

Binarization

LoANs: Weakly Supervised Object Detection with Localizer Assessor Networks

1 code implementation14 Nov 2018 Christian Bartz, Haojin Yang, Joseph Bethge, Christoph Meinel

Our student (localizer) is a model that learns to localize an object, the teacher (assessor) assesses the quality of the localization and provides feedback to the student.

Object object-detection +1

Learning to Train a Binary Neural Network

1 code implementation27 Sep 2018 Joseph Bethge, Haojin Yang, Christian Bartz, Christoph Meinel

In our work, we focus on increasing our understanding of the training process and making it accessible to everyone.

SEE: Towards Semi-Supervised End-to-End Scene Text Recognition

2 code implementations14 Dec 2017 Christian Bartz, Haojin Yang, Christoph Meinel

Detecting and recognizing text in natural scene images is a challenging, yet not completely solved task.

Scene Text Detection Scene Text Recognition +1

Language Identification Using Deep Convolutional Recurrent Neural Networks

1 code implementation16 Aug 2017 Christian Bartz, Tom Herold, Haojin Yang, Christoph Meinel

Language Identification (LID) systems are used to classify the spoken language from a given audio sample and are typically the first step for many spoken language processing tasks, such as Automatic Speech Recognition (ASR) systems.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +4

STN-OCR: A single Neural Network for Text Detection and Text Recognition

3 code implementations27 Jul 2017 Christian Bartz, Haojin Yang, Christoph Meinel

In contrast to most existing works that consist of multiple deep neural networks and several pre-processing steps we propose to use a single deep neural network that learns to detect and recognize text from natural images in a semi-supervised way.

Optical Character Recognition (OCR) Scene Text Detection +2

BMXNet: An Open-Source Binary Neural Network Implementation Based on MXNet

3 code implementations27 May 2017 Haojin Yang, Martin Fritzsche, Christian Bartz, Christoph Meinel

Binary Neural Networks (BNNs) can drastically reduce memory size and accesses by applying bit-wise operations instead of standard arithmetic operations.

Image Captioning with Deep Bidirectional LSTMs

1 code implementation4 Apr 2016 Cheng Wang, Haojin Yang, Christian Bartz, Christoph Meinel

This work presents an end-to-end trainable deep bidirectional LSTM (Long-Short Term Memory) model for image captioning.

Caption Generation Data Augmentation +5

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