Search Results for author: Necati Cihan Camgoz

Found 27 papers, 8 papers with code

Using an LLM to Turn Sign Spottings into Spoken Language Sentences

no code implementations15 Mar 2024 Ozge Mercanoglu Sincan, Necati Cihan Camgoz, Richard Bowden

Sign Language Translation (SLT) is a challenging task that aims to generate spoken language sentences from sign language videos.

Language Modelling Large Language Model +2

Is context all you need? Scaling Neural Sign Language Translation to Large Domains of Discourse

no code implementations18 Aug 2023 Ozge Mercanoglu Sincan, Necati Cihan Camgoz, Richard Bowden

Sign Language Translation (SLT) is a challenging task that aims to generate spoken language sentences from sign language videos, both of which have different grammar and word/gloss order.

Machine Translation NMT +3

Learnt Contrastive Concept Embeddings for Sign Recognition

no code implementations18 Aug 2023 Ryan Wong, Necati Cihan Camgoz, Richard Bowden

In natural language processing (NLP) of spoken languages, word embeddings have been shown to be a useful method to encode the meaning of words.

Word Embeddings

Data-Free Class-Incremental Hand Gesture Recognition

1 code implementation ICCV 2023 Shubhra Aich, Jesus Ruiz-Santaquiteria, Zhenyu Lu, Prachi Garg, K J Joseph, Alvaro Fernandez Garcia, Vineeth N Balasubramanian, Kenrick Kin, Chengde Wan, Necati Cihan Camgoz, Shugao Ma, Fernando de la Torre

Our sampling scheme outperforms SOTA methods significantly on two 3D skeleton gesture datasets, the publicly available SHREC 2017, and EgoGesture3D -- which we extract from a publicly available RGBD dataset.

Class Incremental Learning Hand Gesture Recognition +3

Signing at Scale: Learning to Co-Articulate Signs for Large-Scale Photo-Realistic Sign Language Production

1 code implementation CVPR 2022 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

To learn sign co-articulation, we propose a novel Frame Selection Network (FS-Net) that improves the temporal alignment of interpolated dictionary signs to continuous signing sequences.

Sign Language Production

A Free Lunch with Influence Functions? Improving Neural Network Estimates with Concepts from Semiparametric Statistics

no code implementations18 Feb 2022 Matthew J. Vowels, Sina Akbari, Necati Cihan Camgoz, Richard Bowden

Unfortunately, they are unlikely to be sufficiently flexible to be able to adequately model real-world phenomena, and may yield biased estimates.

Causal Inference

Skeletal Graph Self-Attention: Embedding a Skeleton Inductive Bias into Sign Language Production

no code implementations SLTAT (LREC) 2022 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

Recent approaches to Sign Language Production (SLP) have adopted spoken language Neural Machine Translation (NMT) architectures, applied without sign-specific modifications.

Inductive Bias Machine Translation +3

Mixed SIGNals: Sign Language Production via a Mixture of Motion Primitives

no code implementations ICCV 2021 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

Using a progressive transformer for the translation sub-task, we propose a novel Mixture of Motion Primitives (MoMP) architecture for sign language animation.

Sign Language Production Translation

AnonySIGN: Novel Human Appearance Synthesis for Sign Language Video Anonymisation

no code implementations22 Jul 2021 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

To tackle SLVA, we propose AnonySign, a novel automatic approach for visual anonymisation of sign language data.

Image-to-Image Translation

Looking for the Signs: Identifying Isolated Sign Instances in Continuous Video Footage

no code implementations21 Jul 2021 Tao Jiang, Necati Cihan Camgoz, Richard Bowden

In this paper, we focus on the task of one-shot sign spotting, i. e. given an example of an isolated sign (query), we want to identify whether/where this sign appears in a continuous, co-articulated sign language video (target).

Skeletor: Skeletal Transformers for Robust Body-Pose Estimation

no code implementations23 Apr 2021 Tao Jiang, Necati Cihan Camgoz, Richard Bowden

Skeletor can achieve this as it implicitly learns the spatio-temporal context of human motion via a transformer based neural network.

3D Human Pose Estimation Sign Language Translation +1

Shadow-Mapping for Unsupervised Neural Causal Discovery

no code implementations16 Apr 2021 Matthew J. Vowels, Necati Cihan Camgoz, Richard Bowden

An important goal across most scientific fields is the discovery of causal structures underling a set of observations.

Causal Discovery

VDSM: Unsupervised Video Disentanglement with State-Space Modeling and Deep Mixtures of Experts

1 code implementation CVPR 2021 Matthew J. Vowels, Necati Cihan Camgoz, Richard Bowden

Given that supervision is often expensive or infeasible to acquire, we choose to incorporate structural inductive bias and present an unsupervised, deep State-Space-Model for Video Disentanglement (VDSM).

Disentanglement Inductive Bias

Continuous 3D Multi-Channel Sign Language Production via Progressive Transformers and Mixture Density Networks

no code implementations11 Mar 2021 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

Sign languages are multi-channel visual languages, where signers use a continuous 3D space to communicate. Sign Language Production (SLP), the automatic translation from spoken to sign languages, must embody both the continuous articulation and full morphology of sign to be truly understandable by the Deaf community.

Data Augmentation Sign Language Production +1

Everybody Sign Now: Translating Spoken Language to Photo Realistic Sign Language Video

no code implementations19 Nov 2020 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

To be truly understandable and accepted by Deaf communities, an automatic Sign Language Production (SLP) system must generate a photo-realistic signer.

Sign Language Production Video Generation

Targeted VAE: Variational and Targeted Learning for Causal Inference

1 code implementation28 Sep 2020 Matthew James Vowels, Necati Cihan Camgoz, Richard Bowden

Undertaking causal inference with observational data is incredibly useful across a wide range of tasks including the development of medical treatments, advertisements and marketing, and policy making.

Causal Inference counterfactual +2

Targeted VAE: Structured Inference and Targeted Learning for Causal Parameter Estimation

no code implementations28 Sep 2020 Matthew James Vowels, Necati Cihan Camgoz, Richard Bowden

Undertaking causal inference with observational data is extremely useful across a wide range of domains including the development of medical treatments, advertisements and marketing, and policy making.

Causal Inference counterfactual +1

Multi-channel Transformers for Multi-articulatory Sign Language Translation

no code implementations1 Sep 2020 Necati Cihan Camgoz, Oscar Koller, Simon Hadfield, Richard Bowden

Sign languages use multiple asynchronous information channels (articulators), not just the hands but also the face and body, which computational approaches often ignore.

Sign Language Translation Translation

Adversarial Training for Multi-Channel Sign Language Production

no code implementations27 Aug 2020 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

Sign Languages are rich multi-channel languages, requiring articulation of both manual (hands) and non-manual (face and body) features in a precise, intricate manner.

Sign Language Production Translation

Progressive Transformers for End-to-End Sign Language Production

1 code implementation ECCV 2020 Ben Saunders, Necati Cihan Camgoz, Richard Bowden

The goal of automatic Sign Language Production (SLP) is to translate spoken language to a continuous stream of sign language video at a level comparable to a human translator.

Sign Language Production Translation

NestedVAE: Isolating Common Factors via Weak Supervision

no code implementations CVPR 2020 Matthew J. Vowels, Necati Cihan Camgoz, Richard Bowden

Two outer VAEs with shared weights attempt to reconstruct the input and infer a latent space, whilst a nested VAE attempts to reconstruct the latent representation of one image, from the latent representation of its paired image.

Attribute Change Detection +1

Gated Variational AutoEncoders: Incorporating Weak Supervision to Encourage Disentanglement

no code implementations15 Nov 2019 Matthew J. Vowels, Necati Cihan Camgoz, Richard Bowden

However, there is some debate about how to encourage disentanglement with VAEs and evidence indicates that existing implementations of VAEs do not achieve disentanglement consistently.

Disentanglement Informativeness

Neural Sign Language Translation

1 code implementation CVPR 2018 Necati Cihan Camgoz, Simon Hadfield, Oscar Koller, Hermann Ney, Richard Bowden

SLR seeks to recognize a sequence of continuous signs but neglects the underlying rich grammatical and linguistic structures of sign language that differ from spoken language.

Gesture Recognition Language Modelling +5

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