PIE: Parkour With Implicit-Explicit Learning Framework for Legged Robots

Autor

Artículo de revista

Idioma

Parkour presents a highly challenging task for legged robots, requiring them to traverse various terrains with agile and smooth locomotion. This necessitates comprehensive understanding of both the robot's own state and the surrounding terrain, despite the inherent unreliability of robot perception and actuation. Current state-of-the-art methods either rely on complex pre-trained high-level terrain reconstruction modules or limit the maximum potential of robot parkour to avoid failure due to inaccurate perception. In this paper, we propose a one-stage end-to-end learning-based parkour framework: Parkour with Implicit-Explicit learning framework for legged robots (PIE) that leverages dual-level implicit-explicit estimation. With this mechanism, even a low-cost quadruped robot equipped with an unreliable egocentric depth camera can achieve exceptional performance on challenging parkour terrains using a relatively simple training process and reward function. While the training process is conducted entirely in simulation, our real-world validation demonstrates successful zero-shot deployment of our framework, showcasing superior parkour performance on harsh terrains.

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Model Predictive Parkour Control of a Monoped Hopper in Dynamically Changing Environments

Autor

Artículo de revista

Idioma

A great advantage of legged robots is their ability to operate on particularly difficult and obstructed terrain, which demands dynamic, robust, and precise movements. The study of obstacle courses provides invaluable insights into the challenges legged robots face, offering a controlled environment to assess and enhance their capabilities. Traversing it with a one-legged hopper introduces intricate challenges, such as planning over contacts and dealing with flight phases, which necessitates a sophisticated controller. A novel model predictive parkour controller is introduced, that finds an optimal path through a real-Time changing obstacle course with mixed integer motion planning. The execution of this optimized path is then achieved through a state machine employing a PD control scheme with feedforward torques, ensuring robust and accurate performance.

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Extreme Parkour with Legged Robots

Autor

Artículo de revista

Idioma

Humans can perform parkour by traversing
obstacles in a highly dynamic fashion requiring precise eyemuscle coordination and movement. Getting robots to do the
same task requires overcoming similar challenges. Classically,
this is done by independently engineering perception, actuation,
and control systems to very low tolerances. This restricts
them to tightly controlled settings such as a predetermined
obstacle course in labs. In contrast, humans are able to learn
parkour through practice without significantly changing their
underlying biology. In this paper, we take a similar approach
to developing robot parkour on a small low-cost robot with
imprecise actuation and a single front-facing depth camera
for perception which is low-frequency, jittery, and prone to
artifacts. We show how a single neural net policy operating
directly from a camera image, trained in simulation with largescale RL, can overcome imprecise sensing and actuation to
output highly precise control behavior end-to-end. We show
our robot can perform a high jump on obstacles 2x its height,
long jump across gaps 2x its length, do a handstand and run
across tilted ramps, and generalize to novel obstacle courses
with different physical properties

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Parkour,movimiento y ciudad. Cuerpo humano en movimiento en el entorno construido

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

El siguiente trabajo desarrolla un estudio cualitativo de los espacios que se utilizan para practicar parkour, para ello se sirve de una serie de casos de estudio que recogen desde espacios urbanos utilizados recurrentemente por los practicantes de parkour hasta instalaciones que han sido expresamente construidas para practicar esta disciplina, todos ellos ubicados en la ciudad de Madrid. Se han llevado a cabo levantamientos de cada caso de estudio y se han analizado teniendo en cuenta tanto sus variables físicas como el modo en que son empleados, detectando tanto sus fortalezas como sus debilidades en relación a la práctica del parkour.

Con la información obtenida de los casos de estudio mediante un análisis comparativo, unida a la confección de una figura humana de referencia basada en datos antropométricos contrastados y la información extraída de la encuesta incluida en este trabajo dirigida a traceurs y traceurses, se elabora una guía de diseño que tiene por objeto exponer todas las variables implícitas en el diseño de un espacio destinado a la práctica del parkour, desde su implantación en la ciudad hasta su relación con el cuerpo humano, apoyándose en dibujos que explican el dimensionado de los obstáculos y tablas de medidas donde se recogen las distancias que pueden cubrirse en función del tipo de salto.

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Analysis of Fluency of Movement in Parkour Using a Video and Inertial Measurement Unit Technology

Autor

Artículo de revista

Idioma

Fluency is a movement parameter combining smoothness and hesitation, and its objective measurement may be used to determine the effects of practice on sports performance. This study aimed to measure fluency in parkour, an acrobatic discipline comprising complex non-cyclical movements, which involves fluency as a critical aspect of performance. Inter-individual fluidity differences between advanced and novice athletes as well as intra-individual variations of fluency between different parts and subsequent repetitions of a path were addressed. Seventeen parkour participants were enrolled and divided into two groups based on their experience. We analysed signals captured from an inertial measurement unit fixed on the back of the pelvis of each participant during three consecutive repetitions of a specifically designed parkour routine under the guidance of video analysis. Two fluency parameters, namely smoothness and hesitation, were measured. Smoothness was calculated as the number of inflexions on the so-called jerk graph; hesitation was the percentage of the drop in the centre of mass velocity. Smoothness resulted in significantly lower values in advanced athletes (mean: 126.4; range: 36-192) than in beginners (mean: 179.37; range: 98-272) during one of the three motor activities (p = 0.02). A qualitative analysis of hesitation showed that beginner athletes tended to experience more prominent velocity drops and negative deflection than more advanced athletes. In conclusion, a system based on a video and an inertial measurement unit is a promising approach for quantification and the assessment of variability of fluency, and it is potentially beneficial to guide and evaluate the training process.

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A Measurement of ‘Walking-the-Wall’ Dynamics: An Observational Study Using Accelerometry and Sensors to Quantify Risk Associated with Vertical Wall Impact Attenuation in Trampoline Parks

Autor

Artículo de revista

Idioma

This study illustrates the application of a tri-axial accelerometer and gyroscope sensor device on a trampolinist performing the walking-the-wall manoeuvre on a high-performance trampoline to determine the performer dynamic conditions. This research found that rigid vertical walls would allow the trampolinist to obtain greater control and retain spatial awareness at greater levels than what is achievable on non-rigid vertical walls. With a non-rigid padded wall, the reaction force from the wall can be considered a variable force that is not constrained, and would not always provide the feedback that the trampolinist needs to maintain the balance with each climb up the wall and fall from height. This research postulates that unattenuated vertical walls are safer than attenuated vertical walls for walking-the-wall manoeuvres within trampoline park facilities. This is because non-rigid walls would provide higher g-force reaction feedback from the wall, which would reduce the trampolinist’s control and stability. This was verified by measuring g-force on a horizontal rigid surface versus a non-rigid surface, where the g-force feedback was 27% higher for the non-rigid surface. Control and stability are both critical while performing the complex walking-the-wall manoeuvre. The trampolinist experienced a very high peak g-force, with a maximum g-force of approximately 11.5 g at the bottom of the jump cycle. It was concluded that applying impact attenuation padding to vertical walls used for walking-the-wall and similar activities would increase the likelihood of injury; therefore, padding of these vertical surfaces is not recommended.

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Software para facilitar la correcta implementación del método natural en el parkour

Autor

Artículo de revista

Idioma

El parkour es una disciplina deportiva que gana cada vez más adeptos en el mundo; no obstante, en muchos casos, estos practicantes inician de forma empírica y sin la supervisión de un profesional del deporte. Este artículo describe el desarrollo de un aplicativo para dispositivos móviles que sirva como herramienta que apoye al practicante a desarrollar un marco de buenas prácticas en los entrenamientos. Para esto, el aplicativo describe una serie de rutinas de ejercicios, fundamentadas en el Método Natural de Georges Hébert.

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Development of Parkour Game System Using EEG Control

Autor

Publicación en congreso

Idioma

This paper designs a parkour game system based on Electroencephalo-Graph(EEG) control. The system uses the Bluetooth protocol to wirelessly connect the EEG acquisition equipment (Mindwave Mobile) to the smart phone terminal. And the Mindwave Mobile will acquire EEG signals of the subjects in real time and transmit them to the smart phone terminal through the Bluetooth module, Parkour game software of mobile terminal will receive EEG signals for further processing. The system uses the "Attention Degree", the "Meditation Degree" and "Electro-Oculogram(EOG)" as driving parameters to control the progress of the game. The game, developed on the basis of Mindwave Mobile, helps to exercise emotional control for adolescents, especially Adolescent Hyperactivity Disorder(ADHD). And it also can help patients with cerebral palsy recover mentally.

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Three-Dimensional Attention-Based Deep Ranking Model for Video Highlight Detection

Autor

Artículo de revista

Idioma

The video highlight detection task is to localize key elements (moments of user's major or special interest) in a video. Most of existing highlight detection approaches extract features from the video segment as a whole without considering the difference of local features both temporally and spatially. Due to the complexity of video content, this kind of mixed features will impact the final highlight prediction. In temporal extent, not all frames are worth watching because some of them only contain the background of the environment without human or other moving objects. In spatial extent, it is similar that not all regions in each frame are highlights especially when there are lots of clutters in the background. To solve the above problem, we propose a novel three-dimensional (3-D) (spatial+temporal) attention model that can automatically localize the key elements in a video without any extra supervised annotations. Specifically, the proposed attention model produces attention weights of local regions along both the spatial and temporal dimensions of the video segment

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A Phenomenological study of the alternative appropiation of urban space by parkour practitioners

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

Parkour is an urban sport where practitioners utilize natural body movements such as running, jumping, and climbing to overcome obstacles in the urban environment efficiently and creatively. This phenomenological study investigates parkour practitioners and their alternative appropriations of urban space, defining the essence of their lived experiences. Utilizing the interview as the primary data collection method, parkour practitioners throughout the Midwest were questioned to define the essence of their collective lived experiences. The purpose of this study is to understand the contemporary perspective through which parkour practitioners view and experience the urban environment to contribute to the conversation between architecture, parkour, and urban space. The significance of this study is to understand this emerging usage of the city, identifying which urban conditions facilitate these movements, informing designers of which qualities and conditions in the city make these appropriations possible so that they may effectively incorporate this type of expression into urban spaces. Employing a qualitative phenomenological research methodology that is built upon the writings of Lefebvre, Borden, Merleau-Ponty, Pallasmaa, Serres, Latour, Angel, Csikszentmihalyi, and Lamb, this investigation addresses the main research question: What defines the essence of the lived experience that parkour practitioners have when they alternatively appropriate urban space? An important outcome of this study was the identification of certain urban conditions and elements which make urban spaces more ideal for parkour movements. Designers can utilize these examples to successfully incorporate the movements of parkour practitioners into urban spaces, giving them a multiplicity of different uses which go beyond their normative functions, expanding provided social functionality. Understanding this alternative perspective that parkour practitioners have on the function of urban space has the potential to redefine how these spaces are fundamentally considered, understood, and conceived by designers and how these spaces are perceived, utilized, and experienced by urban communities.

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ANYmal parkour: Learning agile navigation for quadrupedal robots

Autor

Artículo de revista

Idioma

Performing agile navigation with four-legged robots is a challenging task because of the highly dynamic motions, contacts with various parts of the robot, and the limited field of view of the perception sensors. Here, we propose a fully learned approach to training such robots and conquer scenarios that are reminiscent of parkour challenges. The method involves training advanced locomotion skills for several types of obstacles, such as walking, jumping, climbing, and crouching, and then using a high-level policy to select and control those skills across the terrain. Thanks to our hierarchical formulation, the navigation policy is aware of the capabilities of each skill, and it will adapt its behavior depending on the scenario at hand. In addition, a perception module was trained to reconstruct obstacles from highly occluded and noisy sensory data and endows the pipeline with scene understanding. Compared with previous attempts, our method can plan a path for challenging scenarios without expert demonstration, offline computation, a priori knowledge of the environment, or taking contacts explicitly into account. Although these modules were trained from simulated data only, our real-world experiments demonstrate successful transfer on hardware, where the robot navigated and crossed consecutive challenging obstacles with speeds of up to 2 meters per second.

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Humanoid Parkour Learning

Autor

Artículo de revista

Idioma

Parkour is a grand challenge for legged locomotion, even for quadruped robots, requiring active perception and various maneuvers to overcome multiple challenging obstacles. Existing methods for humanoid locomotion either optimize a trajectory for a single parkour track or train a reinforcement learning policy only to walk with a significant amount of motion references. In this work, we propose a framework for learning an end-to-end vision-based whole-body-control parkour policy for humanoid robots that overcomes multiple parkour skills without any motion prior. Using the parkour policy, the humanoid robot can jump on a 0.42m platform, leap over hurdles, 0.8m gaps, and much more. It can also run at 1.8m/s in the wild and walk robustly on different terrains. We test our policy in indoor and outdoor environments to demonstrate that it can autonomously select parkour skills while following the rotation command of the joystick. We override the arm actions and show that this framework can easily transfer to humanoid mobile manipulation tasks

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Robot Parkour Learning

Autor

Publicación en congreso

Idioma

Parkour is a grand challenge for legged locomotion that requires robots to overcome various obstacles rapidly in complex environments. Existing methods can generate either diverse but blind locomotion skills or vision-based but specialized skills by using reference animal data or complex rewards. However, autonomous parkour requires robots to learn generalizable skills that are both vision-based and diverse to perceive and react to various scenarios. In this work, we propose a system for learning a single end-to-end vision-based parkour policy of diverse parkour skills using a simple reward without any reference motion data. We develop a reinforcement learning method inspired by direct collocation to generate parkour skills, including climbing over high obstacles, leaping over large gaps, crawling beneath low barriers, squeezing through thin slits, and running. We distill these skills into a single vision-based parkour policy and transfer it to a quadrupedal robot using its egocentric depth camera. We demonstrate that our system can empower two different low-cost robots to autonomously select and execute appropriate parkour skills to traverse challenging real-world environments

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Extreme Parkour with Legged Robots

Autor

Artículo de revista

Idioma

Humans can perform parkour by traversing obstacles in a highly dynamic fashion requiring precise eye-muscle coordination and movement. Getting robots to do the same task requires overcoming similar challenges. Classically, this is done by independently engineering perception, actuation, and control systems to very low tolerances. This restricts them to tightly controlled settings such as a predetermined obstacle course in labs. In contrast, humans are able to learn parkour through practice without significantly changing their underlying biology. In this paper, we take a similar approach to developing robot parkour on a small low-cost robot with imprecise actuation and a single front-facing depth camera for perception which is low-frequency, jittery, and prone to artifacts. We show how a single neural net policy operating directly from a camera image, trained in simulation with largescale RL, can overcome imprecise sensing and actuation to output highly precise control behavior end-to-end. We show our robot can perform a high jump on obstacles 2x its height, long jump across gaps 2x its length, do a handstand and run across tilted ramps, and generalize to novel obstacle courses with different physical properties.

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Conditional generosity: Architecture for the subvert, Gerlev Parkour Park

Autor

Capítulo de libro

Idioma

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Urban Animals

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

Las nuevas tendencias deportivas son un auge en las redes sociales, siendo llamativas no solo para los más jóvenes, sino también para los demás grupos etarios; a pesar de su gran fama, para muchos siguen siendo prácticas tabú o simplemente, ese algo que solo la gente de internet u otros países puede realizar. Una de las prácticas más generalizadas en este ámbito y que coincide con el anterior pensamiento, es el Parkour, conocido desde su cuna en Francia como el “Arte del desplazamiento” (Redondo, 2011), es definido por la Federación Internacional de Gimnasia (FIG) como “el arte de ir de un punto a otro respetando un principio clave: eficiencia y fluidez”; siendo desarrollado en entornos urbanos, en los cuales se encuentren “obstáculos” útiles para la práctica. Es así como URBAN ANIMALS busca crear un espacio adaptado a las necesidades que esta práctica requiere, dirigido a sus dos ramas, es decir, creando espacios para el desarrollo de acrobacias (Freestyle) y en conjunto espacios para la creación de recorridos (Parkour Race); apoyado con programas pedagógicos de enseñanza en Parkour Race.

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Plan de negocios para la creación de un gimnasio especializado en la práctica de Parkour localizado en el Valle de los Chillos

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

El presente trabajo se enfoca en el estudio de la viabilidad de un plan de negocios para la creación de un gimnasio especializado en la práctica de Parkour establecido en el Valle de los Chillos para aquellas personas adolescentes, jóvenes y adultas del cantón Rumiñahui. El proyecto se desarrolla dentro de una plaza de cinco años, el cual busco aprovechar las características del sector, así como de su mercado objetivo. Por lo cual se desarrolló un análisis externo, usando herramientas como PEST, PORTER y análisis de Matriz EFE, con el objetivo de determinar aquellas oportunidades y amenazas que pueden influir en el proyecto. Además, se realizó un estudio de mercado, aplicando herramientas cuantitativas y cualitativas, como las entrevistas a expertos, grupos de enfoque y encuestas; obteniendo resultados del comportamiento de compra de los posibles clientes. Posteriormente, se desarrolló la estructura del proyecto tomando en cuenta las características administrativas, operativas y de apoyo; con el fin de cumplir con las expectativas del mercado objetivo, brindando una experiencia única. Finalmente se realizó una simulación de evaluación financiera del proyecto con el cual se determinó la viabilidad, considerando aquellos factores internos y externos anteriormente planteados. En conclusión, con base a la investigación realizada y a los resultados obtenidos se puede determinar que el proyecto es viable; ya que, a pesar de su gran inversión inicial, existen recursos que permiten que el proyecto pueda establecerse dentro del mercado.

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Keep Running Academy

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

Keep Running Academy radica en una empresa con ánimo de lucro; en torno a la actividad física y el deporte, en este caso perteneciente a las consideradas Nuevas Tendencias Deportivas (NTD) como lo es el Parkour (PK) o arte del desplazamiento (ADD) y el Street Workout (SW). En este documento se encuentra el modelo de negocio y sus respectivos componentes de Keep Running Academy basándonos el documento Generación de Modelos de Negocios de Alexander Osterwalder & Yves Pigneur y en el modelo Canvas con su respectivo lienzo.

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Centro de integración social y cultural del Parque Villa Luz

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

Este documento se basa en la realización de un centro deportivo para deportes extremos en el parque villa luz y como fue el proceso de investigación, el comienzo de la propuesta y el desarrollo que se fue haciendo durante el proceso de diseño y por ultimo los resultados que se obtuvieron durante el proyecto de grado.

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Equipamiento en el espacio público del Valle de Aburrá para el desarrollo de nuevas prácticas deportivas. Estudio de caso Parkour.

Autor

Trabajo Fin de Grado/Máster o similar

Idioma

El proyecto se enmarca en las prácticas deportivas no convencionales que se desarrollan en el espacio público del Valle de Aburrá, dentro de estas prácticas se encuentran algunas como: Street Workout, Bike Trail, FreeStyle Freesbee y Parkour que marcan tendencia en los últimos años. Actividades que han llevado a que las personas exploren los escenarios públicos de la ciudad para el desarrollo de estas prácticas deportivas. Dado a que los deportes no convencionales en Colombia han sido poco explorados, se plantea configurar elementos de equipamiento urbano para el espacio público del Valle de Aburrá que facilite el desarrollo de nuevas prácticas deportivas. El proyecto se concluye con la configuración del equipamiento urbano acompañado por una estrategia para la práctica de Parkour apoyada en medios digitales, pero además, permitirá proyectar otros elementos que permitan incluir las diferentes prácticas deportivas no convencionales en el espacio público de la ciudad de Medellín.

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