About Gradiant

8/2/2019 About Gradiant

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Communications Area

The Communications area in

Gradiant has a strong expertise on

the application o signal processing

techniques to communications,

flling all the stages rom R&D tofnal implementations.

Sta working in this area has taken

part in the development o dier-

ent patents (three national and two

EU patents) and is involved in

several eorts at Spanish and

European level or new generation

communication systems.

Collaborations are commonly held

with a number o companies

including Indra, Abertis Telecom or

Televes.

R&D ACTIVITY

Its main lines o work are mainly oriented to:

- Digital broadcast

- Satellite communications

- Cognitive radio

- Sensor networks

- Signal processing architectures

More specifcally, the projects developed within the area usually

involve some o the ollowing skills:

- Radio Frequency designs

- Baseband, digital IF and direct conversion processing

- Synchronization and estimation schemes

- Coding

- Upper layers encapsulation

- Propagation studies and intererence analysis

Devices such as transmitters, repeaters or receivers are commonly

implemented on platorms mounting FPGAs and dierent kinds o microprocessors, mainly or DVB based systems. Echo cancellers or

on-requency repeaters and advanced analysis systems or signal

quality evaluation have been transerred to industry. Direct conver-

sion architectures to avoid RF stages have been implemented on

FPGA devices.

Gradiant develops its own tools or channel simulation and evaluation

o spectrum use, including geolocated databases or cognitive radio

applications. Sensor signals are processed in dierent applications

ranging rom human motion tracking to ault detection in bulky

machines. Conversion o ormats (IP, MPEG…), channelization and

adaptation o signals to dierent media have been also accomplished

in several projects.



Task Force in Multimodal Information

The Task Force in Multimodal

Inormation has expertise in the

areas o multimedia security and

multidimensional signal process-

ing, carrying out active research

and developing solutions onsophisticated content protection,

privacy-preserving cryptographic

technologies, and advanced image

processing techniques. Target

applications are related to security

(i.e. biometrics and videosurveil-

lance), advanced human-computer

interaction, and video-based

inormation retrieval. The Task

Force team has experience in

publicly unded European and

National projects, as well asprivately unded projects.

The research contributions o the

Task Force have been done both at

undamental (theoretical) and

practical (applied) levels, having

achieved one Young Author Best

Paper Award and two national Best

PhD Thesis awards, as well as

having fled 6 international patents.



including as Tredess 2010, Telvent

and Atos Origin.

R&D ACTIVITY

The ollowing technologies lie in the expertise o the Task Force:

Forensic marking and content tracing/identifcation technolo-

gies: digital watermarking, robust hashing, anticollusion

codes. Example:FP7 project unded under the “Research or

SMEs” programme, in the area o printed documents security.

Multimedia content authentication, Digital Rights Management.

Privacy-preserving signal processing (Signal Processing in the

Encrypted Domain).

Multimodal biometrics and usion. Example:Secure biometric

access control in crowded events with unconstrained conditions.

Face biometrics in realistic conditions and ulflment o

biometric standards.

Pattern recognition or videosurveillance and advanced

image processing: pedestrian and object detection, tracking.

Human-Computer Interaction by means o visual analysis.

Example: Interactive and personalized advertising through

advanced visual analysis, ocusing on ace-based gender and

age estimation.

Migration o complex computer vision algorithms to mobile

devices (e.g. Android).

Ecient implementation o signal processing algorithms in

embedded systems and Graphical Processing Units (GPUs).



Networks & Applications Area

The Networks & Applications Area

in Gradiant has strong expertise inthe design and optimization o

network-related applications and

services.

The team o the N&A Area has

participated in our Spanish

patents, a US patent, an European

patent extension via PCT, and

numerous publications, both in

international journals (including

IEEE Transactions on Communica-

tions, IEEE Communications Letters,IEEE Transactions on Vehicular

Technology, IEEE Transactions on

Consumer Electronics, IEEE Transac-

tions in Industrial Electronics and

IEEE Transactions on Image

Processing) and international

conerences, many o them by

invitation.



including Indra, Arantia (Televés

Group) and Gigle Networks.

R&D ACTIVITY

The current activities belong to the ollowing research and precompe-

titive development lines:

Multimedia distribution: the whole distribution chain, rom

the video on demand servers to the set-top-box, as well as

the transport and management protocols in between.

High perormance networks: network technologies, trafc

engineering. Examples: cell switching technologies or optical

networks; raud detection in operator service provisioning;

study and characterization o operator’s data access networks

towards the design o planning tools or resource dimensio-

ning according to quality o service goals.

Wireless and Mobile Communications: wireless access

networks, location technologies and services, sensor networ-

ks, delay tolerant networks, vehicular networks. Applications

in the elds o agriculture, telecare and e-Health systems.

Embedded Systems: low cost computing systems or

communications and industrial applications. Examples:

easibility o a voting system or o-shore shermen; develop-

ment o embedded systems to predict mechanical ailure in

wind turbines.

Cloud computing and service architectures. Examples:

integration o encrypted domain processing technology in

the Cloud; sel-publishing system or the Publishing Industry.

Smart Grids: Energy distribution network management.

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