A New Method for Estimating the Widths of JPEG Images
This addresses a specific technical issue in image processing for applications requiring width estimation, but it is incremental as it builds on existing JPEG decoding methods.
The paper tackled the problem of estimating image widths for JPEG images when widths are unavailable, by using the distance between decoded MCUs, and achieved high performance on the PASCAL VOC 2010 and USC-SIPI datasets.
Image width is important for image understanding. We propose a novel method to estimate widths for JPEG images when their widths are not available. The key idea is that the distance between two decoded MCUs (Minimum Coded Unit) adjacent in the vertical direction is usually small, which is measured by the average Euclidean distance between the pixels from the bottom row of the top MCU and the top row of the bottom MCU. On PASCAL VOC 2010 challenge dataset and USC-SIPI image database, experimental results show the high performance of the proposed approach.