occlusion

Occlusion with camshift

由 自作多情 提交于 2021-02-19 07:26:50
问题 I am working on object tracking by camshift algorithm. For the time being I am using the inbuilt opencv code wherein I have trouble dealing with occlusion. hsv = cv2.cvtColor(self.frame, cv2.COLOR_BGR2HSV) mask = cv2.inRange(hsv, np.array((0., 60., 32.)), np.array((180., 255., 255.))) prob = cv2.calcBackProject([hsv], [0], self.hist, [0, 180], 1) cv2.imshow('prob_0',prob) prob &= mask cv2.imshow('prob',prob) term_crit = ( cv2.TERM_CRITERIA_EPS | cv2.TERM_CRITERIA_COUNT, 10, 1 ) track_box,

Occlusion with camshift

由 馋奶兔 提交于 2021-02-19 07:24:30
问题 I am working on object tracking by camshift algorithm. For the time being I am using the inbuilt opencv code wherein I have trouble dealing with occlusion. hsv = cv2.cvtColor(self.frame, cv2.COLOR_BGR2HSV) mask = cv2.inRange(hsv, np.array((0., 60., 32.)), np.array((180., 255., 255.))) prob = cv2.calcBackProject([hsv], [0], self.hist, [0, 180], 1) cv2.imshow('prob_0',prob) prob &= mask cv2.imshow('prob',prob) term_crit = ( cv2.TERM_CRITERIA_EPS | cv2.TERM_CRITERIA_COUNT, 10, 1 ) track_box,

Occlusion in AR

由 倾然丶 夕夏残阳落幕 提交于 2020-01-02 08:33:02
问题 I'm trying make virtual objects be hidden when a real world object is positioned in front of it, but not having any luck with it, i've been playing with the occlusion settings in unity but the virtual objects do not become hidden? 回答1: You could fix this problem by building your augmented reality scene with the experimental meshing enabled. Here is an example of the concept https://www.youtube.com/watch?v=sn3bhnPlfcw You then could ray cast from camera to the virtual object and turn off the

How to improve People Occlusion in ARKit 3.0

由 爷，独闯天下 提交于 2020-01-01 03:04:07
问题 We are working on a demo app using people occlusion in ARKit. Because we want to add videos in the final scene, we use SCNPlane s to render the video using a SCNBillboardConstraint to ensure they are facing the right way. These videos are also partially transparent, using a custom shader on the SCNMaterial we apply (thus playing 2 videos at once). Now we have some issues where the people occlusion is very iffy (see image). The video we are using to test is a woman with a dark pants and skirt

Foreground Extraction

由 左心房为你撑大大i 提交于 2019-12-11 13:03:49
问题 I am doing some work regarding tracking a person, I am using this dataset. I am trying right now to extract foreground using background subtraction method i.e. Mean Filter My background is like and if I try to subtract my current frame like this so after subtraction I am getting image like this and after thresholding of 0.15 or 38 I get this mask So if you notice this mask, it is splitting this foreground in to two pieces because of occlusion of person and chair. I dont know how to solve this

action script 3 - is it possible to trigger click event only when mouse is clicked on the image part?

由 梦想与她 提交于 2019-12-11 02:43:38
问题 I have a problem and I have potential solution. But I wanted to confirm if there is an easy and simple way to solve my problem. App type: Isometric Game Problem statement: I am loading images in my flash app and have mouse events attached to them. The images I load are prop images like vehicles, trees, buildings etc., and all of them are transparent. Example: Red ball asset (please ignore the yellow background which I applied to describe the problem) If I click on the actual image area

Count image similarity on GPU [OpenGL/OcclusionQuery]

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-11 02:30:13
问题 OpenGL. Let's say I've drawn one image and then the second one using XOR. Now I've got black buffer with non-black pixels somewhere, I've read that I can use shaders to count black [ rgb(0,0,0) ] pixels ON GPU? I've also read that it has to do something with OcclusionQuery. http://oss.sgi.com/projects/ogl-sample/registry/ARB/occlusion_query.txt Is it possible and how? [any programming language] If you've got other idea on how to find similarity via OpenGL/GPU - that would be great too. 回答1: I

iPhone iOS5 querying OpenGL ES 2.0 pipeline objects if they are hidden in the view or not…“Occlusion”

由 元气小坏坏 提交于 2019-12-06 02:28:25
问题 EXT_occlusion_query_boolean is new with OS5.0, it looks to me like not a single person on the entire internet has posted about these new extensions nor used this code.... so here they are set up properly...which is not documented anywhere as far as i can tell... you can imagine how they would go in your code from this little sudo code here: import UIKit/UIKit.h import GLKit/GLKit.h import "GLProgram.h" GLuint testBox,hasBeenTested,theParams; //... glGenQueriesEXT(1, &testBox); glBeginQueryEXT

Occlusion in AR

由 三世轮回 提交于 2019-12-06 01:21:30
I'm trying make virtual objects be hidden when a real world object is positioned in front of it, but not having any luck with it, i've been playing with the occlusion settings in unity but the virtual objects do not become hidden? You could fix this problem by building your augmented reality scene with the experimental meshing enabled. Here is an example of the concept https://www.youtube.com/watch?v=sn3bhnPlfcw You then could ray cast from camera to the virtual object and turn off the object if a mesh blocks the raycast. +1 on AndrewNakas's solution. Another solution is to do the screen space

OpenGL: How to determine if a 3D (rendered) point is occluded by other 3D (rendered) primitives in front of it?

由 大兔子大兔子 提交于 2019-12-05 02:01:37
问题 In my OpenGL program, I am doing the following in sequence: // Drawing filled polyhedrons // Drawing points using GL_POINTS // Displaying information for each above point beside it For displaying the point information (say a point identifier/number), I convert the 3D coordinates of the point to 2D window coordinates using gluProject(). I write the point identifier at that 2D window location using glRasterPos() and 2D character rendering code. When a rendered point is occluded by another
订阅 occlusion