Video face detection frame sampling
I am using OpenCV python to detect faces in a video(30fps). The problem is my code runs detection algorithm for each frame in the video, which is slow and inefficient. Is there any way to sample only a few frames from the video that speeds up this process?
opencv image-processing face-detection
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
add a comment |
I am using OpenCV python to detect faces in a video(30fps). The problem is my code runs detection algorithm for each frame in the video, which is slow and inefficient. Is there any way to sample only a few frames from the video that speeds up this process?
opencv image-processing face-detection
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18
add a comment |
I am using OpenCV python to detect faces in a video(30fps). The problem is my code runs detection algorithm for each frame in the video, which is slow and inefficient. Is there any way to sample only a few frames from the video that speeds up this process?
opencv image-processing face-detection
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
I am using OpenCV python to detect faces in a video(30fps). The problem is my code runs detection algorithm for each frame in the video, which is slow and inefficient. Is there any way to sample only a few frames from the video that speeds up this process?
opencv image-processing face-detection
opencv image-processing face-detection
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
asked Nov 24 '18 at 7:41
Bharadwaj M PBharadwaj M P
11
11
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18
add a comment |
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18
add a comment |
1 Answer
1
active
oldest
votes
You can use the frame count to determine if process current frame. Below code for your reference.
if frame_count % 5 == 0:
face_detect(frame)
else:
continue
answered Nov 28 '18 at 6:06
QuinnQuinn
62
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53456187%2fvideo-face-detection-frame-sampling%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use the frame count to determine if process current frame. Below code for your reference.
if frame_count % 5 == 0:
face_detect(frame)
else:
continue
answered Nov 28 '18 at 6:06
QuinnQuinn
62
add a comment |
You can use the frame count to determine if process current frame. Below code for your reference.
if frame_count % 5 == 0:
face_detect(frame)
else:
continue
answered Nov 28 '18 at 6:06
QuinnQuinn
62
add a comment |
You can use the frame count to determine if process current frame. Below code for your reference.
if frame_count % 5 == 0:
face_detect(frame)
else:
continue
answered Nov 28 '18 at 6:06
QuinnQuinn
62
You can use the frame count to determine if process current frame. Below code for your reference.
if frame_count % 5 == 0:
face_detect(frame)
else:
continue
answered Nov 28 '18 at 6:06
QuinnQuinn
62
answered Nov 28 '18 at 6:06
QuinnQuinn
62
answered Nov 28 '18 at 6:06
QuinnQuinn
62
answered Nov 28 '18 at 6:06
QuinnQuinn
62
62
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53456187%2fvideo-face-detection-frame-sampling%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
yes, just skip the frames by using the command "continue". Share your code so that we can help you guide you to what you are trying to achieve
– yapws87
Nov 24 '18 at 8:18