DSPRelated.com

Shadow Detection_Shadow Elimination

Started by shoh...@gmail.com in Image Signal Processing16 years ago 3 replies

Dear all I am estimating the background with LMS(adaptive filters) in a video surveillances, so I have to detect all the motions. The big...

Dear all I am estimating the background with LMS(adaptive filters) in a video surveillances, so I have to detect all the motions. The big problem is shadow, I have to Eliminate the shadow, I mean it should detect as a background, but because of motion,it is a part of moving object. What is your solution about this problem,I mean about the "Detection of shadow of moving object".


Circular Template Matching for Cell Segmentation

Started by inder purohit in Image Signal Processing16 years ago 2 replies

Hi All, I am working on Cell Segmentation for the detection of cancer cells. The cells are separated from the background using a...

Hi All, I am working on Cell Segmentation for the detection of cancer cells. The cells are separated from the background using a threshold. Later form factor is used to separate the circular cells from the rest of the non-circular regions in the image. However, some of the cells go undetected as there are a couple of pixels missing to form the complete circular shape. So I wanted to use ...


Problem reading MPEG Files

Started by "Sudeep. S" in Image Signal Processing16 years ago 1 reply

Hi, I downloaded the required MEX files (from mathworks.com) and created the DLL to read MPEG videos in MATLAB. Some videos are being read, but...

Hi, I downloaded the required MEX files (from mathworks.com) and created the DLL to read MPEG videos in MATLAB. Some videos are being read, but it fails for others, saying that the format is not MPEG. One such video, for example, was taken from a Sony Cybershot DSC P8 camera, which provides videos in the MPEG VX format (640x480 VGA). Has anyone else here experienced such problems? Do let me kno...


image compression

Started by natasha adams in Image Signal Processing17 years ago 1 reply

hello all: I'm currently looking for any error concealment code for image transmissions that will contain redundancy which will enable...

hello all: I'm currently looking for any error concealment code for image transmissions that will contain redundancy which will enable me to vary its amount so that i can compare redundacy with amount of error correction that has to be added into the code. Also if anyone is aware of an image compression algorithm and its soure code, please


LMS

Started by bena...@yahoo.fr in Image Signal Processing17 years ago 1 reply

I'm working on a LMS algorithm,I need a paper or what ever that explains the applied LMS algorithm to images, Could someone please help...

I'm working on a LMS algorithm,I need a paper or what ever that explains the applied LMS algorithm to images, Could someone please help me? thinks faten


gabor filter java implementation

Started by ghalamiamin in Image Signal Processing17 years ago

I have Implemented a 2D gabor filter by java but it does not work properly Please give me notes about my code thank you package...

I have Implemented a 2D gabor filter by java but it does not work properly Please give me notes about my code thank you package fpFrameWork.process.gaborFilter; import java.awt.*; import java.awt.image.BufferedImage; public class Orientation { private double deltaX=1.8; private double deltaY=0.8; private double T1 = 4; private double T2 = 28; //[4,12]; public in...


Overcomplete wavelets for image denoising

Started by Patrick Mineault in Image Signal Processing17 years ago

Hi all, I'm looking to do denoising on a set of non-natural images; these images come from experiments in visual research. As it turns out,...

Hi all, I'm looking to do denoising on a set of non-natural images; these images come from experiments in visual research. As it turns out, to find out the truly important components in the image, the correct statistical procedure is to hard threshold the image according to a lower and upper bound (a z-value). However, in luminance (pixel) space, that's a pretty poor way of denoising. Henc...


Re: Efficient, Robust, and Fast Global Motion Estimation for Video C

Started by Andrew Nesterov in Image Signal Processing17 years ago

Hi Praveen, Could you forward this paper to my email directly? The attachement didn't get though neither to groups.yahoo.com nor to...

Hi Praveen, Could you forward this paper to my email directly? The attachement didn't get though neither to groups.yahoo.com nor to dsprelated.com - I haven't fint it there. Many thanks, Andrew > 1a. Re: Efficient, Robust, and Fast Global Motion Estimation for Video C > Posted by: "praveenkumar yethapu" p...@yahoo.com praveen_yet > Date: Sat Jul 28, 2007 6:08 am ((PDT)) >


Efficient, Robust, and Fast Global Motion Estimation for Video Coding

Started by hey3...@yahoo.com in Image Signal Processing17 years ago 1 reply

Hello, i am canvassing motion estimation algorithms for videos. i have the fourier method but is only effective in some video cases. does anyone...

Hello, i am canvassing motion estimation algorithms for videos. i have the fourier method but is only effective in some video cases. does anyone have codes for "Efficient, Robust, and Fast Global Motion Estimation for Video Coding" author: Frédéric Dufaux and Janusz Konrad ? thanks


Image processing, DCT coefficients ordering

Started by fanz...@hotmail.com in Image Signal Processing17 years ago 2 replies

Hi guys, I am currently doing a project about the multiple description coding for a image using correlating transform. In one of the IEEE...

Hi guys, I am currently doing a project about the multiple description coding for a image using correlating transform. In one of the IEEE journals, the author describes the encoder as ?The coder is based on a modification of a standard JPEG coder. In our baseline encoder, each block of samples is transformed using an 8*8 discrete cosine transform (DCT). These coefficients are ordered to h


Ask a Question to the DSPRelated community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright