ES2603657A1 - Autonomous device for generating facial models in three dimensions (Machine-translation by Google Translate, not legally binding) - Google Patents
Autonomous device for generating facial models in three dimensions (Machine-translation by Google Translate, not legally binding) Download PDFInfo
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- ES2603657A1 ES2603657A1 ES201531242A ES201531242A ES2603657A1 ES 2603657 A1 ES2603657 A1 ES 2603657A1 ES 201531242 A ES201531242 A ES 201531242A ES 201531242 A ES201531242 A ES 201531242A ES 2603657 A1 ES2603657 A1 ES 2603657A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/08—Stereoscopic photography by simultaneous recording
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- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B9/00—Housing or supporting of instruments or other apparatus
- G12B9/08—Supports; Devices for carrying
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Abstract
Description
DISPOSITIVO AUTONOMO DE GENERACION DE MODELOS FACIALES EN TRESAUTONOMOUS FACIAL MODEL GENERATION DEVICE IN THREE
DIMENSIONESDIMENSIONS
D E S C R I P C I O ND E S C R I P C I O N
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OBJETO DE LA INVENCIONOBJECT OF THE INVENTION
El objeto de la presente invencion es un dispositivo autonomo de generacion de modelos faciales en tres dimensiones.The object of the present invention is an autonomous device for generating facial models in three dimensions.
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Mas concretamente, la presente invencion permite generar un modelo facial en tres dimensiones, almacenarlo en una base de datos para analizarlo y compararlo con otros modelos faciales en tres dimensiones con fines preferiblemente policiales.More specifically, the present invention allows generating a three-dimensional facial model, storing it in a database to analyze it and comparing it with other three-dimensional facial models for preferably police purposes.
15 ANTECEDENTES DE LA INVENCION15 BACKGROUND OF THE INVENTION
Actualmente, son conocidos dispositivos para la reconstruction y el reconocimiento facial con fines policiales, tal como camaras fotograficas convencionales, para tomar las imagenes que se requieren para realizar la ficha de un individuo.Currently, devices for reconstruction and facial recognition for police purposes are known, such as conventional photo cameras, to take the images required to make an individual's file.
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Mas concretamente, dichas fotograflas son tomadas en una serie de posiciones predefinidas (frontal, perfil derecho y semi-perfil izquierdo) con lo que en ocasiones resulta diflcil identificar a individuos que son fotografiados o grabados desde perspectivas diferentes, siendo realmente complicada su identification no solo por sistemas 25 automaticos sino por el propio personal experto de la policla.More specifically, these photographs are taken in a series of predefined positions (front, right profile and semi-left profile), which sometimes makes it difficult to identify individuals who are photographed or recorded from different perspectives, their identification not only being complicated by automatic systems 25 but by the police's own expert staff.
Asimismo, en otras ocasiones el individuo modifica su aspecto facial, incluso con cirugla estetica, siendo imposible la identificacion del mismo mediante las tecnicas fotograficas actualmente utilizadas por la policla. Esto es debido a que las imagenes en dos 30 dimensiones tomadas actualmente no son metricas, y por tanto no se obtienen los patrones faciales biometricos clave para la identificacion de la persona en esta situation.Likewise, on other occasions the individual modifies his facial appearance, even with cosmetic surgery, making it impossible to identify it by means of the photographic techniques currently used by the police. This is because the two-dimensional images currently taken are not metric, and therefore the key biometric facial patterns for the identification of the person in this situation are not obtained.
Actualmente, para solventar este problema existen soluciones de software comercial para el reconocimiento facial en dos o tres dimensiones. La problematica de estos sistemasCurrently, to solve this problem there are commercial software solutions for facial recognition in two or three dimensions. The problems of these systems
radica en que los modelos faciales en tres dimensiones son generados a partir de las tres imagenes en dos dimensiones citadas anteriormente, con lo que unicamente se consiguen distintas perspectivas (picado, contrapicado, etc.) de las tres imagenes en dos dimensiones. De este modo, no es posible obtener un modelo facial en tres dimensiones 5 suficientemente acorde con la realidad para mostrar los patrones faciales biometricos del individuo.It is based on the fact that the three-dimensional facial models are generated from the three two-dimensional images mentioned above, which only achieves different perspectives (chopped, contrapicado, etc.) of the three images in two dimensions. In this way, it is not possible to obtain a three-dimensional facial model 5 sufficiently consistent with reality to show the biometric facial patterns of the individual.
Por otro lado, en otros sectores ajenos a la investigation policial, se conocen dispositivos para la generation de modelos faciales en tres dimensiones.On the other hand, in other sectors outside the police investigation, devices for the generation of facial models in three dimensions are known.
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Por ejemplo en el sector de la cirugla estetica, se conocen dispositivos que realizan modelos en tres dimensiones para mostrar al paciente el posible resultado despues de la cirugla, ayudando en muchos casos a tomar la decision estetica deseada. Estos dispositivos son capaces de realizar modelos faciles en tres dimensiones utilizando 15 costosos y pesados escaneres que requieren de un software instalado en un ordenador externo al dispositivo, y debido a su amplio consumo energetico tiene que estar conectados a la red electrica para poderlos utilizar.For example, in the cosmetic surgery sector, devices are known that make three-dimensional models to show the patient the possible result after the surgery, helping in many cases to make the desired aesthetic decision. These devices are capable of making easy models in three dimensions using 15 expensive and heavy scanners that require software installed on a computer external to the device, and due to its wide energy consumption it has to be connected to the electrical network in order to use them.
Otro sector en que se realizan modelos faciales en tres dimensiones es en los 20 videojuegos. Actualmente, es conocido un sistema de reconstruction facial basado en camaras que captan el espectro visible. Mas concretamente, este sistema esta compuesto por un elevado numero de camaras fotograficas reflex y multiples fuentes de luz dispuestas en un armazon metalico fijo. La captura no se realiza en tiempo real, sino que son necesarias varias tomas con diferentes condiciones de iluminacion que deben 25 ser postprocesadas mediante un ordenador externo. Mediante este sistema se obtiene un modelo en tres dimensiones de gran calidad pero su configuration imposibilita el desplazamiento del equipo, requiere de fuentes de luz externa y depende de un sistema de procesamiento externo para su funcionamiento.Another sector in which three-dimensional facial models are made is in the 20 video games. Currently, a facial reconstruction system based on cameras that capture the visible spectrum is known. More specifically, this system is composed of a large number of reflex photo cameras and multiple light sources arranged in a fixed metal frame. The capture is not done in real time, but several shots with different lighting conditions are necessary and must be postprocessed by an external computer. Through this system a high-quality three-dimensional model is obtained but its configuration makes it impossible to move the equipment, requires external light sources and depends on an external processing system for its operation.
30 DESCRIPCION DE LA INVENCION30 DESCRIPTION OF THE INVENTION
La presente invencion describe un dispositivo autonomo de generacion de modelos faciales en tres dimensiones, que comprende:The present invention describes an autonomous device for generating facial models in three dimensions, comprising:
- un cuerpo portatil horizontalmente alargado,- a horizontally elongated portable body,
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- al menos dos captadores de imagen y rango alineados entre si, estando cada captador emplazado en los extremos opuestos de la misma superficie posterior del cuerpo para generar al menos una imagen en tres dimensiones de la cara de un individuo,- at least two image and range sensors aligned with each other, each sensor being located at opposite ends of the same rear surface of the body to generate at least one three-dimensional image of the face of an individual,
- al menos un mango ergonomico con dos extremos, siendo uno de los extremos insertable en el cuerpo portatil, y el otro extremo susceptible de ser sujetado,- at least one ergonomic handle with two ends, one of the ends being inserted into the portable body, and the other end capable of being held,
- un boton de disparo de los sensores de imagen situado en el exterior del mango destinado a ser pulsado por el usuario, preferentemente personal policial, para accionar el captador de imagen y rango,- a trigger button for the image sensors located outside the handle intended to be pressed by the user, preferably police personnel, to operate the image sensor and range,
- una unidad de procesado de datos emplazada en el interior del cuerpo portatil, y vinculada con los sensores de imagen y rango, y con el boton de disparo, para generar el modelo facial en tres dimensiones,- a data processing unit located inside the portable body, and linked with the image and range sensors, and with the trigger button, to generate the three-dimensional facial model,
- una unidad de representation grafica y de control emplazada en la superficie anterior del cuerpo portatil, que esta vinculada con la unidad de procesado de datos para representar visualmente la captura de los sensores de imagenes, de los modelos faciales en tres dimensiones, y para controlar la generacion del modelo facial en tiempo real, y- a graphic representation and control unit located on the anterior surface of the portable body, which is linked to the data processing unit to visually represent the capture of image sensors, facial models in three dimensions, and to control the generation of the facial model in real time, and
- una baterla emplazada en el interior del cuerpo portatil para alimentar electricamente los componentes electronicos del dispositivo.- a battery located inside the portable body to electrically power the electronic components of the device.
Preferentemente, el cuerpo portatil es simetrico y horizontalmente curvado para obtener una mayor superficie lateral de la cara del individuo.Preferably, the portable body is symmetrical and horizontally curved to obtain a larger lateral surface of the individual's face.
Mas concretamente, cada captador de imagen y rango comprende una camara RGB y un sensor de profundidad para la obtencion, en una unica toma, de la imagen facial completa del individuo. Este sensor de profundidad comprende preferentemente un emisor y un receptor de infrarrojos, y presenta una velocidad de captura elevada de modo que los posibles movimientos del usuario no afectan a la toma. Adicionalmente, al utilizar un sensor de profundidad con una senal cuya longitud de onda es no visible, la toma no requiere de unas condiciones de iluminacion especiales, y por tanto puede ser utilizada en cualquier situation lumlnica o ambiental.More specifically, each image and range sensor comprises an RGB camera and a depth sensor for obtaining, in a single shot, the complete facial image of the individual. This depth sensor preferably comprises a transmitter and an infrared receiver, and has a high capture rate so that the possible movements of the user do not affect the shot. Additionally, when using a depth sensor with a signal whose wavelength is not visible, the shot does not require special lighting conditions, and therefore can be used in any lighting or environmental situation.
Concretamente, la unidad de procesado de datos comprende una estructura tipo raspberry pi con software que permite realizar el modelo facial en tres dimensionesSpecifically, the data processing unit comprises a raspberry pi type structure with software that allows the facial model to be made in three dimensions
integrado.integrated.
Preferentemente, la unidad de procesado de datos comprende un modulo de comunicacion inalambrica para recibir y trasmitir datos con un dispositivo exterior, tal 5 como una base de datos que preferentemente se encuentra en la nube. Adicionalmente, esta base de datos de modelos faciales en tres dimensiones permite comparar los parametros faciales biometricos en tiempo real de individuos previamente identificados por la policla o autoridad similares.Preferably, the data processing unit comprises a wireless communication module for receiving and transmitting data with an external device, such as a database that is preferably located in the cloud. Additionally, this database of three-dimensional facial models makes it possible to compare the biometric facial parameters in real time of individuals previously identified by the similar police or authority.
10 Adicionalmente, tambien el cuerpo portatil comprende un modulo de transferencia de datos, preferiblemente un puerto USB, vinculado a la unidad de procesado de datos y a la baterla. Este puerto USB permite la carga de la baterla, as! como recibir y trasmitir datos con una memoria USB o similar.Additionally, the portable body also comprises a data transfer module, preferably a USB port, linked to the data processing unit and the battery. This USB port allows battery charging, as! how to receive and transmit data with a USB memory or similar.
15 La unidad de representation grafica y de control es una pantalla tactil que permite ver y controlar la generation del modelo facial.15 The graphic representation and control unit is a touch screen that allows you to see and control the generation of the facial model.
Otra de las ventajas de este dispositivo es que el mango es desmontable y por tanto se facilita su transporte.Another advantage of this device is that the handle is removable and therefore its transport is facilitated.
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De este modo la presente invention es de especial interes con fines policiales debido a que es un dispositivo autonomo, portatil y ligero que puede realizar un modelo facial en tres dimensiones con malas condiciones de iluminacion y enviarlo para ser comparado en una base de datos de forma inalambrica, permitiendo una identification y reconocimiento 25 facial inmediata, fiable y eficiente.Thus the present invention is of special interest for police purposes because it is an autonomous, portable and lightweight device that can make a three-dimensional facial model with poor lighting conditions and send it to be compared in a database in a way wireless, allowing immediate, reliable and efficient facial identification and recognition.
DESCRIPCION DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la description que se esta realizando y con objeto de ayudar a una 30 mejor comprension de las caracterlsticas de la invencion, de acuerdo con un ejemplo preferente de realization practica de la misma, se acompana como parte integrante de dicha descripcion, un juego de dibujos en donde con caracter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of the same, a set of said description is accompanied as an integral part of said description. Drawings where the following has been illustrated and not limited to:
Figura 1.- Muestra una vista esquematica de la superficie posterior del dispositivo autonomo de generation de modelos faciales en tres dimensiones.Figure 1.- It shows a schematic view of the posterior surface of the autonomous device of generation of facial models in three dimensions.
Figura 2.- Muestra una vista esquematica de la superficie anterior del dispositivo 5 autonomo de generacion de modelos faciales en tres dimensiones.Figure 2.- Shows a schematic view of the anterior surface of the autonomous device for generating facial models in three dimensions.
REALIZACION PREFERENTE DE LA INVENCIONPREFERRED EMBODIMENT OF THE INVENTION
En una realization preferente de esta invention, tal y como se muestra en la figura 1 y 10 2, el dispositivo autonomo de generacion de modelos faciales en tres dimensiones conIn a preferred embodiment of this invention, as shown in Figures 1 and 10 2, the autonomous device for generating facial models in three dimensions with
fines policiales comprende un cuerpo portatil (1), que tiene una configuration simetrica horizontalmente alargada y curvada que resulta optimizada para el proceso del modelo facial en tres dimensiones del individuo.Police purposes include a portable body (1), which has a horizontally elongated and curved symmetrical configuration that is optimized for the process of the three-dimensional facial model of the individual.
15 Mas concretamente, en cada extremo de la superficie posterior, es decir la superficie que apunta a la cara del individuo cuando se realiza el modelo, del cuerpo portatil (1) comprende un captador de imagen y rango compuestos por una camara RGB (2) y un sensor de profundidad (3) que comprende un emisor de infrarrojos y un receptor de infrarrojos. Dichos captadores de imagen estan sincronizados entre si y emplean 20 longitudes de onda no visibles.More specifically, at each end of the rear surface, that is, the surface that points to the face of the individual when the model is made, the portable body (1) comprises an image and range sensor composed of an RGB camera (2) and a depth sensor (3) comprising an infrared emitter and an infrared receiver. These image sensors are synchronized with each other and use 20 non-visible wavelengths.
Preferentemente, el cuerpo portatil (1) comprende en su cara inferior dos mangos (4) ergonomicos desmontables para facilitar el manejo del cuerpo portatil (1) por el personal policial. Cada mango (4) comprende un boton de disparo (5) en su extremo superior 25 interior, es decir en su extremo mas proximo al cuerpo portatil (1) y en su superficie posterior. De este modo se facilita la captura de la imagen para realizar el modelo en tres dimensiones en el momento deseado por el personal policial.Preferably, the portable body (1) comprises on its lower face two removable ergonomic handles (4) to facilitate the handling of the portable body (1) by police personnel. Each handle (4) comprises a firing button (5) at its upper inner end 25, that is to say at its end closest to the portable body (1) and its rear surface. This facilitates the capture of the image to make the model in three dimensions at the time desired by police personnel.
Para que el personal policial pueda supervisar en tiempo real el modelo el cuerpo portatil 30 (1) dispone de una unidad de representation grafica y de control, tal como una pantallaIn order for police personnel to monitor the model in real time, the portable body 30 (1) has a graphic representation and control unit, such as a screen
tactil (7) en su superficie anterior, es decir la superficie que apunta al personal de policla cuando se realiza el modelo. Concretamente en su parte central. De este modo, unicamente el personal policial puede visualizar la toma de la imagen y la generacion del modelo en tres dimensiones.tactile (7) on its previous surface, that is the surface that points to the police staff when the model is made. Specifically in its central part. In this way, only police personnel can visualize the image taking and the generation of the model in three dimensions.
Concretamente, en el interior del cuerpo portatil (1) comprende una unidad de procesado de datos, preferente una estructura rasberry pi (6), que mediante un software integrado transforma la information capturada por la camara RGB (2) y el sensor de profundidad 5 (3) para generar el modelo facial en tiempo real.Specifically, inside the portable body (1) it comprises a data processing unit, preferably a rasberry pi structure (6), which by means of an integrated software transforms the information captured by the RGB camera (2) and the depth sensor 5 (3) to generate the facial model in real time.
Conjuntamente, con dicha estructura rasberry pi (6), esta incluido un modulo de comunicacion inalambrica (8) que permite la transferencia de los modelos finales a un sistema de almacenamiento externo preferiblemente a una base de datos que se 10 encuentra en la nube. De este, modo si el individuo ha sido previamente identificado por la policla, o una autoridad similar, el personal policial puede conocerlo en tiempo real.Together, with said rasberry pi structure (6), a wireless communication module (8) is included that allows the transfer of the final models to an external storage system preferably to a database in the cloud. Thus, if the individual has been previously identified by the police, or a similar authority, the police personnel can meet him in real time.
Preferentemente, en el interior del cuerpo portatil (1) se encuentra una baterla (10) para permitir el funcionamiento autonomo del dispositivo.Preferably, inside the portable body (1) there is a battery (10) to allow autonomous operation of the device.
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Adicionalmente, el cuerpo portatil (1) tambien comprende un modulo de transferencia de datos, tal como un puerto USB (9), para descargar datos y recarga la baterla (10).Additionally, the portable body (1) also comprises a data transfer module, such as a USB port (9), for downloading data and recharging the battery (10).
En esta realization preferente, el peso completo del dispositivo es aproximadamente 1.3 20 kilogramos y presenta una autonomla minima de 2 horas.In this preferred embodiment, the full weight of the device is approximately 1.3 20 kilograms and has a minimum autonomy of 2 hours.
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| ES201531242A ES2603657B1 (en) | 2015-08-31 | 2015-08-31 | AUTONOMOUS DEVICE FOR GENERATING FACIAL MODELS IN THREE DIMENSIONS |
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| ES201531242A ES2603657B1 (en) | 2015-08-31 | 2015-08-31 | AUTONOMOUS DEVICE FOR GENERATING FACIAL MODELS IN THREE DIMENSIONS |
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Citations (5)
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|---|---|---|---|---|
| US4431290A (en) * | 1982-04-12 | 1984-02-14 | Bechtel Power Corporation | Portable photogrammetry system |
| US20060204239A1 (en) * | 2005-03-10 | 2006-09-14 | Minoru Inaba | Digital stereo camera/digital stereo video camera, 3-dimensional display, 3-dimensional projector, and printer and stereo viewer |
| US20100239240A1 (en) * | 2009-03-23 | 2010-09-23 | James Cameron | Stereo Camera With Automatic Control of Interocular Distance |
| US20110242286A1 (en) * | 2010-03-31 | 2011-10-06 | Vincent Pace | Stereoscopic Camera With Automatic Obstruction Removal |
| US20150144759A1 (en) * | 2013-11-28 | 2015-05-28 | Yu-Cheng Chang | 3d image photographing device |
-
2015
- 2015-08-31 ES ES201531242A patent/ES2603657B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431290A (en) * | 1982-04-12 | 1984-02-14 | Bechtel Power Corporation | Portable photogrammetry system |
| US20060204239A1 (en) * | 2005-03-10 | 2006-09-14 | Minoru Inaba | Digital stereo camera/digital stereo video camera, 3-dimensional display, 3-dimensional projector, and printer and stereo viewer |
| US20100239240A1 (en) * | 2009-03-23 | 2010-09-23 | James Cameron | Stereo Camera With Automatic Control of Interocular Distance |
| US20110242286A1 (en) * | 2010-03-31 | 2011-10-06 | Vincent Pace | Stereoscopic Camera With Automatic Obstruction Removal |
| US20150144759A1 (en) * | 2013-11-28 | 2015-05-28 | Yu-Cheng Chang | 3d image photographing device |
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| Stereo depth perception with Raspberry Pi. [en línea] Noviembre 2014 [Recuperado el 31-10-16] Recuperado de Internet: <a href="https://web.archive.org/web/20141109193541/http://makezine.com/2014/11/03/stereo-depth-perception-with-raspberry-pi/">https://web.archive.org/web/20141109193541/http://makezine.com/2014/11/03/stereo-depth-perception-with-raspberry-pi/ * |
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