Post-Doctorant F/H
Role details
Job location
Tech stack
Job description
The Postdoctoral Research Fellow will be responsible for the following main tasks. They will engage in Model Design and Development by designing and implementing novel architectures (e.g., Diffusion Models, Transformers, VAEs) specifically tailored for high-resolution, temporally consistent, and controllable video generation. A key focus is to develop conditional generation techniques to guide the Text-to-Video process using various complex inputs beyond a simple text prompt, such as image references, motion skeletons, semantic masks, or detailed scene descriptions. They will extensively research Video Editing and Manipulation, developing methods for high-fidelity post-generation video editing, allowing for non-destructive modification of generated videos (e.g., object replacement, style transfer, background alteration) while maintaining strong temporal consistency. Furthermore, they will investigate in-context editing mechanisms that enable precise changes to specific segments or objects within a generated video based on new text or image prompts. A core part of the role is Addressing Key T2V Challenges. This includes tackling the fundamental challenge of temporal coherence and consistency, ensuring that generated videos do not suffer from "flickering" or object identity changes across frames, and developing strategies to improve semantic fidelity, resolving issues where models misinterpret complex text prompts. They will also explore methods for efficient training and inference to manage the significant computational cost associated with high-resolution, long-duration video generation, and address the difficulties of data scarcity and bias through techniques like data augmentation or cross-modal transfer learning. Finally, they will perform Evaluation and Benchmarking, establishing rigorous quantitative and qualitative metrics to assess the quality, editability, and controllability of the developed models. The fellow is expected to prioritize Dissemination and Collaboration, which involves documenting research findings and publishing high-quality papers in top-tier machine learning and computer vision venues, actively participating in departmental seminars, and contributing to collaborative projects.
Requirements
Compétences techniques et niveau requis :We are seeking a motivated PhD candidate with a strong background in one or more the following areas :
- speech processing, computer vision, machine learning,
- solid programmming skills
- interest in connecting AI with human cognition Prior experience with LLM, SpeechLMs, RL algorithms, or robotic platforms is a plus, but not mandatory
Langues : Anglais
Benefits & conditions
Funding : BPI contract
Contexte :Background and Motivation Recent advancements in generative AI, and in particular diffusion models [1,2], have significantly enhanced the capabilities of text-to-video (T2V) models[3,4], allowing users to produce richly varied and imaginative scenes from natural language descriptions. These systems demonstrate strong scene diversity and flexibility, making them attractive for applications in entertainment, simulation, and human-computer interaction. However, a persistent limitation lies in their inability to enforce fine-grained conditioning. For example, while a T2V model can generate a "person walking in a park," it cannot ensure that the person is wearing a specific garment or that the garment adapts convincingly to body shape, pose, and interaction with the environment. In contrast, virtual try-on (VTON) systems are highly specialized in clothing transfer tasks~[5], excelling at fine-grained conditioning of garments on target individuals. They can adapt clothing to morphology, pose, and texture details with remarkable realism. Yet, they lack the scene diversity and broader contextual awareness that T2V models offer. Current VTON approaches generally operate in isolation, focusing on clothing alignment rather than situating the dressed person within dynamic, complex environments. Bridging these two paradigms offers a powerful opportunity: to synthesize realistic humans dressed in controllable garments, embedded within richly described environments, and interacting with objects and other people. This integration could transform applications in e-commerce (immersive virtual try-on experiences), creative industries (fashion films, digital avatars), and simulation (training data for human-AI interaction).
Mission confiée
Research Objectives : The primary mission of the Postdoctoral Research Fellow will be to advance the state-of-the-art in controllable and editable Text-to-Video (T2V) generation. The successful candidate will design, implement, and evaluate novel deep generative models and methodologies that address the current limitations of existing T2V systems. A core focus will be on achieving fine-grained conditional generation, allowing users to specify complex temporal, spatial, and stylistic constraints, as well as enabling intuitive and high-fidelity post-generation editing of the video content. The research will aim to produce models that are not only photorealistic but also exhibit high semantic fidelity, temporal coherence, and practical usability in creative and industrial applications., * Restauration subventionnée
- Transports publics remboursés partiellement
- Congés: 7 semaines de congés annuels + 10 jours de RTT (base temps plein) + possibilité d'autorisations d'absence exceptionnelle (ex : enfants malades, déménagement)
- Possibilité de télétravail 90 jours/an fixes ou flottants et aménagement du temps de travail
- Équipements professionnels à disposition (visioconférence, prêts de matériels informatiques, etc.)
- Prestations sociales, culturelles et sportives (Association de gestion des œuvres sociales d'Inria)
- Accès à la formation professionnelle
- Participation Protection Sociale Complémentaire sous conditions, Les candidatures doivent être déposées en ligne sur le site Inria.
Le traitement des candidatures adressées par d'autres canaux n'est pas garanti.
Sécurité défense : Ce poste est susceptible d'être affecté dans une zone à régime restrictif (ZRR), telle que définie dans le décret n°2011-1425 relatif à la protection du potentiel scientifique et technique de la nation (PPST). L'autorisation d'accès à une zone est délivrée par le chef d'établissement, après avis ministériel favorable, tel que défini dans l'arrêté du 03 juillet 2012, relatif à la PPST. Un avis ministériel défavorable pour un poste affecté dans une ZRR aurait pour conséquence l'annulation du recrutement.
Politique de recrutement : Dans le cadre de sa politique diversité, tous les postes Inria sont accessibles aux personnes en situation de handicap.