People associate basic tastes (e.g., sweet, sour, bitter, and salty) with specific colors (e.g., pink or red, green or yellow, black or purple, and white or blue). In the present study, we investigated whether a color bordered by another color (either the same or different) would give rise to stronger taste associations relative to a single patch of color. We replicate previous findings, highli...

Map digitization is one of the most important means of geographic data acquisition. Automatic extraction of geographic features from scanned maps is the key technique to improve the efficiency of map digitization. With regard to linear feature extraction from color topographic map images, it is usually performed by interactive or automatic line tracking based on color separated binary images. B...

Background estimation and removal based on the joint use of range and color data produces superior results than can be achieved with either data source alone. This is increasingly relevant as inexpensive, real-time, passive range systems become more accessible through novel hardware and increased CPU processing speeds. Range is a powerful signal for segmentation which is largely independent of ...

The effects of sample thickness (0.5, 1.0, and 1.5 cm), background color (white, pink, green, and gray), and illuminant (D-65, A, and F) on color measurement of broiler tissue were determined. Color values from the anterior portions of the two Pectoralis superficialis muscles were not different from each other, allowing one to be used as a control for the other. Light penetrated the thinner pos...

Background & Objective:  Thiopurine drugs are considered as a treatment modality in various autoimmune disorders including pemphigus vulgaris (PV). These drugs are metabolized by an enzyme “Thiopurine S-methyl transferase” (TPMT). Various variants of this enzyme may have decreased activity lead...

There are many sets of guidelines concerning the accessibility of the web for older adults, but little empirical evidence from studies with older people to support their recommendations. In addition, all the recommendations apply to text in languages using the Latin alphabet. This study investigated the effects of text color and background color on the performance and preferences of younger and...

In this paper we give a new model for foreground-background-shadow separation. Our method extracts the faithful silhouettes of foreground objects even if they have partly background like colors and shadows are observable on the image. It does not need any a priori information about the shapes of the objects, it assumes only they are not point-wise. The method exploits temporal statistics to cha...

Variants of the background subtraction method are broadly used for the detection of moving objects in video sequences in different applications. In this work we propose a new approach to the background subtraction method which operates in the colour space and manages the colour information in the segmentation process to detect and eliminate noise. This new method is combined with blob-level kno...

This paper presents a novel vision based obstacle detection algorithm that is adapted from a powerful background subtraction algorithm: ViBe (VIsual Background Extractor). We describe an adaptive obstacle detection method using monocular color vision and an ultrasonic distance sensor. Our approach assumes an obstacle free region in front of the robot in the initial frame. However, the method dy...

In this paper, we propose a strategy based on the joint use of background/foreground segmentation methods and colorimetric invariants or color spaces, in order to detect more precisely moving objects at level crossings throughout the day. The proposed strategy is composed of three steps : 1/ apply an adapted colorimetric invariant on the acquired image in order to simplify the image and limit t...