Results 41 to 50 of about 14,188 (183)
Remote Sensing in Ecology and Conservation, EarlyView.We developed PZM‐YOLO to automatically detect plateau zokor mounds in UAV imagery of alpine meadows. The model achieved reliable detection of small and densely distributed mounds under complex backgrounds, outperforming the baseline YOLOv5s. This framework supports mound counting, mound position, rodent impact assessment, and grassland restoration ...
Yang Yang +5 more
wiley +1 more source
A capacity estimation technique for JPEG-to-JPEG image watermarking [PDF]
IEEE Transactions on Circuits and Systems for Video Technology, 2003 In JPEG-to-JPEG image watermarking (J2J), the input is a JPEG image file. After watermark embedding, the image is JPEG-compressed such that the output file is also a JPEG file. We use the human visual system (HVS) model to estimate the J2J data hiding capacity of JPEG images, or the maximum number of bits that can be embedded in JPEG-compressed images.
Wong, PHW, Au, OC
openaire +2 more sources
Remote Sensing in Ecology and Conservation, EarlyView.Monitoring programs of vulnerable megafauna increasingly rely on aerial surveys from drones or planes fitted with cameras. However, automated methods are still lacking to accurately count individuals across entire surveys. Here, we leverage a tracking‐by‐detection framework to not only detect individuals but also link the resulting detections across ...
Laura Mannocci +6 more
wiley +1 more source
FLoCIC: A Few Lines of Code for Raster Image Compression
Entropy, 2023 A new approach is proposed for lossless raster image compression employing interpolative coding. A new multifunction prediction scheme is presented first.
Borut Žalik +8 more
doaj +1 more source
CAAI Transactions on Intelligence Technology, EarlyView.Abstract Data is the key element that runs the modern society. Large amounts of data are being released day by day as a result of many activities. The digital data is transferred through the Internet which may be vulnerable to attacks while transmitting. Especially, the medical data is observed to be of at most importance.
Rupa Ch +4 more
wiley +1 more source
Steganalysis of JPEG images using non-linear residuals
Tongxin xuebao, 2023 Most current JPEG steganalytic methods can only extract features from a series of linear residuals.Non-linear filters are not considered in these JPEG steganalytic methods, resulting in single types of residuals.Hence, a JPEG steganalytic method using ...
Chao XIA +5 more
doaj +2 more sources
New Quality Metric for Compressed Images
Anbar Journal of Engineering Sciences, 2020 This paper proposes a new quality-assessment metric for compressed images based on error magnitude, error location, and error distribution. The proposed MLD metric was applied to JPEG and other compression techniques and showed stronger correlation with ...
Fatimah Abdulsattar +2 more
doaj
DrLS: Distortion‐Resistant Lossless Steganography via Colour Depth Interpolation
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT The lossless data steganography is to hide a certain amount of information into a container image. Previous lossless steganography methods fail to strike a balance between capacity, imperceptibility, accuracy, and robustness, commonly vulnerable to distortion on container images.
Youmin Xu +3 more
wiley +1 more source
Exact JPEG recompression [PDF]
SPIE Proceedings, 2010 We present a variant of the JPEG baseline image compression algorithm optimized for images that were generated by a JPEG decompressor. It inverts the computational steps of one particular JPEG decompressor implementation (Independent JPEG Group, IJG), and uses interval arithmetic and an iterative process to infer the possible values of intermediate ...
Andrew Lewis, Markus G. Kuhn
openaire +1 more source
Robust Multi‐Source Batch Normalisation for Test‐Time Batch Adaptation
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT Test‐Time Batch Adaptation (TTBA) aims to adapt a pre‐trained source model to small, unlabelled target batches at test time. The TTBA methods focus on adapting the pre‐trained model or the target data in a one‐to‐one alignment paradigm. However, these one‐to‐one alignment paradigms assume that the source domain may share the same knowledge ...
Xinlin Xiao +3 more
wiley +1 more source