scholarly journals Colour constancy in real world scenes: 3D shape -material & object knowledge

2013 ◽  
Vol 13 (9) ◽  
pp. 1018-1018
Author(s):  
A. Werner ◽  
L. Zebrowski ◽  
I. Kelly-Perez
Keyword(s):  
Real World ◽  
Material Object ◽  
Colour Constancy ◽  
Object Knowledge ◽  
3D Shape

scholarly journals VisGraB: A Benchmark for Vision-Based Grasping

2012 ◽  
Vol 3 (2) ◽  
Author(s):  
Gert Kootstra ◽  
Mila Popović ◽  
Jimmy Alison Jørgensen ◽  
Danica Kragic ◽  
Henrik Gordon Petersen ◽  
...  
Keyword(s):  
Real World ◽  
Software Tool ◽  
Quality Measures ◽  
Visual Input ◽  
User Needs ◽  
Experimental Setup ◽  
Object Knowledge ◽  
The Real ◽  
Fair Comparison ◽  
Grasp Quality

AbstractWe present a database and a software tool, VisGraB, for benchmarking of methods for vision-based grasping of unknown objects with no prior object knowledge. The benchmark is a combined real-world and simulated experimental setup. Stereo images of real scenes containing several objects in different configurations are included in the database. The user needs to provide a method for grasp generation based on the real visual input. The grasps are then planned, executed, and evaluated by the provided grasp simulator where several grasp-quality measures are used for evaluation. This setup has the advantage that a large number of grasps can be executed and evaluated while dealing with dynamics and the noise and uncertainty present in the real world images. VisGraB enables a fair comparison among different grasping methods. The user furthermore does not need to deal with robot hardware, focusing on the vision methods instead. As a baseline, benchmark results of our grasp strategy are included.

scholarly journals Colour Constancy by Illumination Matching in Real World Scenes

2012 ◽  
Vol 12 (9) ◽  
pp. 57-57
Author(s):  
B. Pearce ◽  
S. Crichton ◽  
M. Mackiewicz ◽  
G. Finlayson ◽  
A. Hurlbert
Keyword(s):  
Real World ◽  
Colour Constancy

scholarly journals Revisiting and Optimising a CNN Colour Constancy Method for Multi-Illuminant Estimation

2021 ◽  
Vol 2021 (1) ◽  
pp. 68-72
Author(s):  
Ghalia Hemrit ◽  
Joseph Meehan
Keyword(s):  
Real World ◽  
State Of The Art ◽  
Colour Constancy ◽  
Illuminant Estimation ◽  
Art Methods ◽  
Deep Cnn ◽  
Scene Illumination ◽  
Visual Results

The aim of colour constancy is to discount the effect of the scene illumination from the image colours and restore the colours of the objects as captured under a ‘white’ illuminant. For the majority of colour constancy methods, the first step is to estimate the scene illuminant colour. Generally, it is assumed that the illumination is uniform in the scene. However, real world scenes have multiple illuminants, like sunlight and spot lights all together in one scene. We present in this paper a simple yet very effective framework using a deep CNN-based method to estimate and use multiple illuminants for colour constancy. Our approach works well in both the multi and single illuminant cases. The output of the CNN method is a region-wise estimate map of the scene which is smoothed and divided out from the image to perform colour constancy. The method that we propose outperforms other recent and state of the art methods and has promising visual results.

scholarly journals Real world colour constancy - the effect of surface material

2012 ◽  
Vol 12 (9) ◽  
pp. 951-951
Author(s):  
A. Werner ◽  
L. Zebrowski
Keyword(s):  
Real World ◽  
Surface Material ◽  
Colour Constancy ◽  
Effect Of Surface

scholarly journals Colour Calibration of a Head Mounted Display for Colour Vision Research Using Virtual Reality

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Raquel Gil Rodríguez ◽  
Florian Bayer ◽  
Matteo Toscani ◽  
Dar’ya Guarnera ◽  
Giuseppe Claudio Guarnera ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Real World ◽  
Vision Research ◽  
Colour Vision ◽  
Software Implementation ◽  
Field Of View ◽  
Large Field ◽  
Colour Constancy ◽  
Head Mounted Display ◽  
Colour Appearance

AbstractVirtual reality (VR) technology offers vision researchers the opportunity to conduct immersive studies in simulated real-world scenes. However, an accurate colour calibration of the VR head mounted display (HMD), both in terms of luminance and chromaticity, is required to precisely control the presented stimuli. Such a calibration presents significant new challenges, for example, due to the large field of view of the HMD, or the software implementation used for scene rendering, which might alter the colour appearance of objects. Here, we propose a framework for calibrating an HMD using an imaging colorimeter, the I29 (Radiant Vision Systems, Redmond, WA, USA). We examine two scenarios, both with and without using a rendering software for visualisation. In addition, we present a colour constancy experiment design for VR through a gaming engine software, Unreal Engine 4. The colours of the objects of study are chosen according to the previously defined calibration. Results show a high-colour constancy performance among participants, in agreement with recent studies performed on real-world scenarios. Our studies show that our methodology allows us to control and measure the colours presented in the HMD, effectively enabling the use of VR technology for colour vision research.

scholarly journals PARA HARIMAU YANG MENOLAK PUNAH: ESTETIKA DOKUMENTER TELEVISI DI ERA PASCAREFORMASI

2018 ◽  
Vol 5 (1) ◽  
pp. 49-57
Author(s):  
Romdhi Fatkhur Rozi ◽  
Renta Vulkanita Hasan
Keyword(s):  
Real World ◽  
Environmental Conservation ◽  
Material Object ◽  
New Order ◽  
Phenomenal World ◽  
Reform Era ◽  
The Real ◽  
Continuity And Change ◽  
Television Documentary ◽  
The Government

ABSTRAKPara Harimau Yang Menolak Punah(Imanda Dea Sabiella dan Edho Cahya Kusuma, 2013) merupakan judul dokumenter televisi produksi Eagle Institutedengan ciri filmis berupa paduan antara gambar dan tuturan (wawancara). Dokumenter ini merupakan objek material yang menarik untuk diteliti dalam konteks kontinuitas dan perubahan estetika, selama era pasca reformasi dengan zaman Orde Baru sebagai pembanding. Jika pada masa orde baru, kampanye pelestarian lingkungan melalui media dokumenter notabene diproduksi oleh pemerintah melalui estetika sinematik yang bersifat propagandis, maka saat ini dokumenter produksi Eagle Institutejustru menggunakan estetika sinematik yang kritis sebagai konter bagi pemerintah. Fakta dan fiksi (faksi) menjadi istilah yang digunakan dalam penelitian ini sebagai bentuk kontinuitas dan perubahan dokumenter televisi Indonesia. Alasan pemilihan istilah ini adalah dunia fenomenal dalam banyak kasus, seperti yang terlihat dalam dokumenter, seakan berbeda dari "dunia nyata", meskipun dalam kenyataannya rekaman itu berasal dari “dunia nyata/realitas”. Penelitian ini menggunakan pendekatan film kognitif untuk mengamati sejauh mana Faksi beroperasi sebagai media kritik yang secara estetis merangkai dokumenter tersebut. Struktur mental digunakan untuk menjelaskan Faksi melalui petunjuk filmis hingga diperoleh kesimpulan tentang kritik yang ingin disampaikan melalui dokumenter. ABSTRACTPara Harimau Yang Menolak Punah (Imanda Dea Sabiella dan Edho Cahya Kusuma, 2013) is the title of a television documentary produced by Eagle Institute. The documentary has characters that specifically contains of expository shots. This documentary is an interesting material object to be examined in the context of continuity and aesthetic change, during the post-reform era with the New Order era as a comparison. During the new order era, environmental conservation campaigns through documentary media were produced by the government through propagandist cinematic aesthetics. Whereas, the post-reform documentary produced by Eagle Institute actually uses a critical cinematic aesthetic as a counter for the government. Fact and fiction (faction) became the term used in this study as a form of continuity and change of Indonesia documentary. The reason for choosing this term is the phenomenal world in many cases, as seen in the documentary, as though it were different from the "real world", even though in reality it came from "the real world". This study uses a cognitive film approach to observe the extent to which the Faction operates as a criticism medium which aesthetically assembles the documentary. The mental structure is used to explain the Faction through filmic clues to the conclusion of the criticism that the documentary wishes to convey. 

Replications can cause distorted belief in scientific progress

2018 ◽  
Vol 41 ◽  
Author(s):  
Michał Białek
Keyword(s):  
Real World ◽  
Scientific Progress ◽  
The Public ◽  
Psychological Science

AbstractIf we want psychological science to have a meaningful real-world impact, it has to be trusted by the public. Scientific progress is noisy; accordingly, replications sometimes fail even for true findings. We need to communicate the acceptability of uncertainty to the public and our peers, to prevent psychology from being perceived as having nothing to say about reality.

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