A method for rectifying thermograms in perspective captured at human height is proposed. It applies to the image pixel-by-pixel corrections that account surface emissivity, reflected longwave infrared radiation flux, and emitted attenuated by atmosphere. The results are validated two steps: first comparison with contact temperature devices then finite element simulations. They give satisfactory...

Realtime rendering requires accurate display of a dynamic scene with minimal delay. Frameless rendering [Bishop et al. 1994] offers unique flexibility in this regard: because it samples time per pixel, it can respond to change with very little delay, and at any location in the image. However, sampling is random, resulting in blurring in changing image regions. We present an approach for improvi...

one of the most fundamental features of digital image and the basic steps in image processing, analysis, pattern recognition and computer vision is the edge of an image where the preciseness and reliability of its results will affect directly on the comprehension machine system made objective world. several edge detectors have been developed in the past decades, although no single edge detector...

The mixed pixel of low-resolution remote-sensing image makes the traditional water extraction method not effective for small body extraction. This study takes Loess Plateau with complex terrain as research area and develops a multi-index fusion threshold segmentation algorithm (MFTSA) large-scale based on GEE (Google Earth Engine). MFTSA uses AWEI (automated index), MNDWI (modified normalized d...

Digital images of clean surgical wounds following suturing were obtained and computer-assisted image analysis was performed. Surgical wounds were sutured by two different kinds of sutures each. A comparative study of the quality of five different suture materials according to the quantity of skin erythema that they caused was carried out. The aim of study was to establish an objective method fo...

In this paper, the Normalized Correlation based Quantization Index Modulation (NCQIM), Least Significant Bit (LSB) and Code Division Multiple Access (CDMA) techniques are combined for reversible watermarking. By using this method, the normalized correlation is calculated between the host signal and a random signal. Then the modulation is performed on generated normalized correlation by using co...