Smart community security coding system
By detecting the evenly distributed values of human targets and dynamically adjusting the search radius of intra-frame coding, it solves the problem of poor intra-frame coding effects in existing security monitoring systems when processing images with uneven distribution of human targets, and achieves more efficient coding. effect and lower computing resource consumption.
Patent Information
- Application Number
- CN202411499143.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-07-19
- Filing Date
- 2024-10-25
- Publication Date
- 2025-01-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing security monitoring system does not have good intra-frame encoding when processing images with uneven distribution of human targets, or when trying to improve the encoding effect, resulting in excessive calculation and time consumption.
By detecting the uniform distribution of human targets, the search radius of intra-frame coding is dynamically adjusted to adapt to changes in the distribution of human targets. The larger the uniform distribution value, the more uneven the distribution of human targets. The search radius is increased accordingly to ensure the acquisition of reliable intra-frame coding candidates and at the same time reduce the cost of candidate acquisition.
It effectively improves the effect of intra-frame coding, reduces the amount of calculation and time consumption, and improves the operating efficiency and stability of the system.
Smart Images
Figure CN119316565A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of smart communities, and in particular to a smart community security coding system. Background Art
[0002] The security monitoring system uses optical fiber, coaxial cable or microwave to transmit video signals in a closed loop, and constitutes an independent and complete system from camera to image display and recording. It can reflect the monitored object in real time, vividly and truthfully, and can replace manual long-term monitoring in harsh environments and record it through a video recorder. Video security monitoring system, also known as video surveillance & control system (VSCS), refers to an electronic system or network that uses video detection technology to monitor the defense area and display and record on-site images in real time.
[0003] Human targets are one of the main monitoring objects of security monitoring systems. In the security monitoring images obtained by performing security monitoring operations on the entrances and exits of urban residential buildings, the uniformity of the distribution of multiple human targets changes over time. If the same intra-frame coding mechanism is used to perform intra-frame coding on security monitoring images of all times, then for security monitoring images with uneven distribution, the probability of searching for intra-frame coding candidates is very low, which in turn affects the overall intra-frame coding effect. On the contrary, if the search range of candidates is expanded too much for security monitoring images with uneven distribution, then for security monitoring images with even distribution, too much computation and time are consumed when performing intra-frame coding. Summary of the invention
[0004] In order to solve technical problems in related fields, the present invention provides a smart community security coding system, which can perform security monitoring operations on the entrances and exits of urban residential buildings to obtain security monitoring images, and determine the search radius of candidates when performing intra-frame coding on the security monitoring images according to the distribution uniformity value of detected human targets. The larger the distribution uniformity value of the detected human targets, the more uneven the distribution of the human targets, and the larger the determined search radius, thereby ensuring the acquisition of reliable intra-frame coding candidates while reducing the cost of obtaining candidates as much as possible.
[0005] According to the present invention, a smart community security coding system is provided, the system comprising: The security monitoring equipment is arranged in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit scenes of the urban residential building, so as to obtain and output each frame of security monitoring images corresponding to each time stamp; A human detection device, connected to the security monitoring device, for performing human target detection processing on the security monitoring image corresponding to the current timestamp to obtain the number of human targets in the security monitoring image corresponding to the current timestamp; A brightness storage device connected to the human body detection device, used to pre-store the brightness value distribution interval corresponding to the human body, and send the brightness value distribution interval corresponding to the human body to the human body detection device for use; A numerical analysis device, connected to the human body detection device, is used to obtain the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp and output it as a reference distribution value, wherein the horizontal coordinate value and the vertical coordinate value of each center position pixel point corresponding to each human body target in the security monitoring image corresponding to the current timestamp are obtained, and the covariance of the horizontal coordinate value and the vertical coordinate value of each center position pixel point is used as the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp; a dynamic conversion device, connected to the numerical analysis device and the human body detection device, respectively, for determining a corresponding candidate search radius based on the reference distribution value when the number of human targets is greater than or equal to a set number threshold, and for setting the candidate search radius to a default search radius when the number of human targets is less than the set number threshold, wherein the larger the reference distribution value, the larger the corresponding candidate search radius; A search processing device connected to the dynamic conversion device is used to obtain a search circle with the image block to be intra-coded as the center and the candidate search radius as the search radius for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, and to analyze the candidates for performing intra-coding on the image block to be intra-coded from each image block covered by the search circle; Among them, for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, a search circle is obtained with the image block to be intra-coded as the center and the candidate search radius as the search radius, and candidates for performing intra-coding on the image block to be intra-coded in each image block covered by the search circle are parsed, including: obtaining a search circle with the centroid position of a shape composed of edges of the image block to be intra-coded as the center and the candidate search radius as the search radius; Among them, obtaining the horizontal coordinate values and vertical coordinate values of each center position pixel point corresponding to each human target in the security monitoring image corresponding to the current timestamp, and taking the covariance of the horizontal coordinate values and the vertical coordinate values of each center position pixel point as the distribution uniformity value of each human target in the security monitoring image corresponding to the current timestamp includes: for each human target in the security monitoring image corresponding to the current timestamp, taking the pixel point closest to the centroid position of the shape composed of its edges as the center position pixel point of the human target.
[0006] It can be seen that the present invention has at least the following significant substantive features: Substantive feature A: In a security monitoring image obtained by performing security monitoring operations on a scene where people pass through the entrances and exits of urban residential buildings, a search radius for a candidate when performing intra-frame coding on the security monitoring image is determined according to a distribution uniformity value of a detected human target. The larger the distribution uniformity value of the detected human target, the more uneven the distribution of the human target, and the larger the determined search radius, thereby ensuring that reliable intra-frame coding candidates are obtained while minimizing the cost of obtaining candidates; Substantive feature B: The specific method for obtaining the uniform distribution value is as follows: obtaining the horizontal coordinate value and the vertical coordinate value of each center position pixel point corresponding to each human target in the security monitoring image, and using the covariance of the horizontal coordinate value and the vertical coordinate value of each center position pixel point as the uniform distribution value of each human target in the security monitoring image; Substantive Feature C: The specific search mode for intra-frame coding candidates is as follows: for each image block to be intra-frame coded in the security monitoring image, a search circle is obtained with the image block to be intra-frame coded as the center and the candidate search radius as the search radius, and candidates for performing intra-frame coding on the image block to be intra-frame coded are analyzed from each image block covered within the search circle, wherein the search circle is obtained with the centroid position of the shape composed of the edges of the image block to be intra-frame coded as the center and the candidate search radius as the search radius.
[0007] The smart community security coding system of the present invention has stable operation and intelligent control. Since the search radius of candidates for performing intra-frame coding on the security monitoring image can be determined according to the uniform distribution value of human targets detected in the security monitoring image, the cost of obtaining the candidate can be reduced as much as possible while ensuring the acquisition of reliable intra-frame coding candidates. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The embodiments of the present invention will be described below with reference to the accompanying drawings, wherein:
[0009] Figure 1It is a diagram showing the internal structure of a smart community security coding system according to the first embodiment of the present invention.
[0010] Figure 2 It is a diagram showing the internal structure of a smart community security coding system according to the second embodiment of the present invention.
[0011] Figure 3 It is a diagram showing the internal structure of a smart community security coding system according to the third embodiment of the present invention. DETAILED DESCRIPTION
[0012] The implementation scheme of the smart community security coding system of the present invention will be described in detail below with reference to the accompanying drawings.
[0013] Figure 1 The internal structure diagram of the smart community security coding system according to the first embodiment of the present invention is shown, and the system includes: The security monitoring equipment is arranged in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit scenes of the urban residential building, so as to obtain and output each frame of security monitoring images corresponding to each time stamp; Specifically, the security monitoring device is arranged in front of a city residential building, and is used to perform security monitoring operations on the scene of people passing through the entrance and exit of the city residential building, so as to obtain and output each frame of security monitoring images corresponding to each time stamp, including: the security monitoring device has a built-in photoelectric sensing component, which is used to perform photoelectric sensing operations on the scene of people passing through the entrance and exit of the city residential building; A human detection device, connected to the security monitoring device, for performing human target detection processing on the security monitoring image corresponding to the current timestamp to obtain the number of human targets in the security monitoring image corresponding to the current timestamp; A brightness storage device connected to the human body detection device, used to pre-store the brightness value distribution interval corresponding to the human body, and send the brightness value distribution interval corresponding to the human body to the human body detection device for use; A numerical analysis device, connected to the human body detection device, is used to obtain the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp and output it as a reference distribution value, wherein the horizontal coordinate value and the vertical coordinate value of each center position pixel point corresponding to each human body target in the security monitoring image corresponding to the current timestamp are obtained, and the covariance of the horizontal coordinate value and the vertical coordinate value of each center position pixel point is used as the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp; a dynamic conversion device, connected to the numerical analysis device and the human body detection device, respectively, for determining a corresponding candidate search radius based on the reference distribution value when the number of human targets is greater than or equal to a set number threshold, and for setting the candidate search radius to a default search radius when the number of human targets is less than the set number threshold, wherein the larger the reference distribution value, the larger the corresponding candidate search radius; A search processing device connected to the dynamic conversion device is used to obtain a search circle with the image block to be intra-coded as the center and the candidate search radius as the search radius for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, and to analyze the candidates for performing intra-coding on the image block to be intra-coded from each image block covered by the search circle; Among them, for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, a search circle is obtained with the image block to be intra-coded as the center and the candidate search radius as the search radius, and candidates for performing intra-coding on the image block to be intra-coded in each image block covered by the search circle are parsed, including: obtaining a search circle with the centroid position of a shape composed of edges of the image block to be intra-coded as the center and the candidate search radius as the search radius; Wherein, obtaining the horizontal coordinate values and vertical coordinate values of each center position pixel point corresponding to each human target in the security monitoring image corresponding to the current timestamp, and taking the covariance of the horizontal coordinate values and the vertical coordinate values of each center position pixel point as the distribution uniformity value of each human target in the security monitoring image corresponding to the current timestamp includes: for each human target in the security monitoring image corresponding to the current timestamp, taking the pixel point closest to the centroid position of the shape composed of its edges as the center position pixel point of the human target; Among them, obtaining the horizontal coordinate values and vertical coordinate values of each center position pixel point corresponding to each human target in the security monitoring image corresponding to the current timestamp, and using the covariance of the horizontal coordinate values and the vertical coordinate values of each center position pixel point as the uniform distribution value of each human target in the security monitoring image corresponding to the current timestamp also includes: obtaining the horizontal coordinate values corresponding to each center position pixel point and obtaining the vertical coordinate values corresponding to each center position pixel point, and using the covariance of the horizontal coordinate values and the vertical coordinate values as the uniform distribution value of each human target in the security monitoring image corresponding to the current timestamp; The performing of human target detection processing on the security monitoring image corresponding to the current timestamp to obtain the number of human targets in the security monitoring image corresponding to the current timestamp includes: detecting each human target in the security monitoring image corresponding to the current timestamp based on the brightness value distribution interval corresponding to the human body; And wherein, the security monitoring equipment is arranged in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit traffic scenes of the urban residential building, so as to obtain and output each frame of security monitoring image corresponding to each time stamp, including: the each time stamp is evenly arranged on the time axis and includes the current time stamp.
[0014] Figure 2 It is a diagram showing the internal structure of a smart community security coding system according to the second embodiment of the present invention.
[0015] exist Figure 2 In, with Figure 1 Differently, the smart community security coding system shown in the second embodiment of the present invention may also include: An on-site storage device, connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, respectively, for providing data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner; The on-site storage device is connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device respectively, and is used to provide data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner, including: the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device are connected to the on-site storage device respectively using different data channels; Among them, the on-site storage device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to provide data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner, including: the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device use the same reference clock signal.
[0016] Figure 3 It is a diagram showing the internal structure of a smart community security coding system according to the third embodiment of the present invention.
[0017] exist Figure 3 In, with Figure 1 Differently, the smart community security coding system shown in the third embodiment of the present invention may also include: a content display device, connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, respectively, and used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device; Wherein, the content display device is connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device respectively, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, including: the various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device displayed simultaneously includes the sleep state or working state of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device; Wherein, the content display device is connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device respectively, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and further includes: the content display device is a liquid crystal display screen or an LED display array; Wherein, the content display device is connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device respectively, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and further comprises: the LED display array is composed of a plurality of LED display units arranged in a rectangular matrix pattern; And wherein, the content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and also includes: the structure of the multiple LED display units arranged in a rectangular matrix pattern is the same.
[0018] In addition, in the smart community security coding system, the security monitoring device is arranged in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit personnel passage scenes of the urban residential building, so as to obtain and output each frame of security monitoring image corresponding to each time stamp, and further includes: the security monitoring device includes a CMOS image sensor, an optical lens assembly, a monitoring bracket, a filter, and a flexible circuit board; And wherein, the security monitoring equipment includes a CMOS image sensor, an optical lens assembly, a monitoring bracket, a filter and a flexible circuit board, including: the filter is arranged between the optical lens assembly and the CMOS image sensor, and the CMOS image sensor is arranged on the flexible circuit board.
[0019] The preferred embodiments of the present invention have been discussed in detail so far, but these embodiments are only specific examples used to clarify the technical content of the present invention. Therefore, the present invention should not be considered to be limited to these specific examples. The spirit and scope of the present invention are limited only by the appended claims.
Claims
1. A smart community security coding system, characterized in that: The system comprises: The security monitoring equipment is arranged in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit scenes of the urban residential building, so as to obtain and output each frame of security monitoring images corresponding to each time stamp; A human detection device, connected to the security monitoring device, for performing human target detection processing on the security monitoring image corresponding to the current timestamp to obtain the number of human targets in the security monitoring image corresponding to the current timestamp; A brightness storage device connected to the human body detection device, used to pre-store the brightness value distribution interval corresponding to the human body, and send the brightness value distribution interval corresponding to the human body to the human body detection device for use; A numerical analysis device, connected to the human body detection device, is used to obtain the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp and output it as a reference distribution value, wherein the horizontal coordinate value and the vertical coordinate value of each center position pixel point corresponding to each human body target in the security monitoring image corresponding to the current timestamp are obtained, and the covariance of the horizontal coordinate value and the vertical coordinate value of each center position pixel point is used as the uniform distribution value of each human body target in the security monitoring image corresponding to the current timestamp; a dynamic conversion device, connected to the numerical analysis device and the human body detection device, respectively, for determining a corresponding candidate search radius based on the reference distribution value when the number of human targets is greater than or equal to a set number threshold, and for setting the candidate search radius to a default search radius when the number of human targets is less than the set number threshold, wherein the larger the reference distribution value, the larger the corresponding candidate search radius; A search processing device connected to the dynamic conversion device is used to obtain a search circle with the image block to be intra-coded as the center and the candidate search radius as the search radius for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, and to analyze the candidates for performing intra-coding on the image block to be intra-coded from each image block covered by the search circle; Among them, for each image block to be intra-coded in the security monitoring image corresponding to the current timestamp, a search circle is obtained with the image block to be intra-coded as the center and the candidate search radius as the search radius, and candidates for performing intra-coding on the image block to be intra-coded in each image block covered by the search circle are parsed, including: obtaining a search circle with the centroid position of a shape composed of edges of the image block to be intra-coded as the center and the candidate search radius as the search radius; Among them, obtaining the horizontal coordinate values and vertical coordinate values of each center position pixel point corresponding to each human target in the security monitoring image corresponding to the current timestamp, and taking the covariance of the horizontal coordinate values and the vertical coordinate values of each center position pixel point as the distribution uniformity value of each human target in the security monitoring image corresponding to the current timestamp includes: for each human target in the security monitoring image corresponding to the current timestamp, taking the pixel point closest to the centroid position of the shape composed of its edges as the center position pixel point of the human target.
2. The smart community security coding system according to claim 1, characterized in that: Obtaining the horizontal coordinate values and vertical coordinate values of each center position pixel point corresponding to each human target in the security monitoring image corresponding to the current timestamp, and using the covariance of the horizontal coordinate values and the vertical coordinate values of each center position pixel point as the uniform distribution value of each human target in the security monitoring image corresponding to the current timestamp further includes: obtaining the horizontal coordinate values corresponding to each center position pixel point and obtaining the vertical coordinate values corresponding to each center position pixel point, and using the covariance of the horizontal coordinate values and the vertical coordinate values as the uniform distribution value of each human target in the security monitoring image corresponding to the current timestamp; The performing of human target detection processing on the security monitoring image corresponding to the current timestamp to obtain the number of human targets in the security monitoring image corresponding to the current timestamp includes: detecting each human target in the security monitoring image corresponding to the current timestamp based on the brightness value distribution interval corresponding to the human body; Among them, the security monitoring equipment is set in front of the urban residential building, and is used to perform security monitoring operations on the entrance and exit traffic scenes of the urban residential building, so as to obtain and output each frame of security monitoring image corresponding to each time stamp, including: the timestamps are evenly arranged on the time axis and include the current timestamp.
3. The smart community security coding system as claimed in claim 2, characterized in that: The system further comprises: An on-site storage device, connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, respectively, for providing data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner; Among them, the on-site storage device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to provide data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner, including: the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device are respectively connected to the on-site storage device using different data channels.
4. The smart community security coding system as claimed in claim 3, characterized in that: The field storage device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to provide data temporary storage services for the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device in a time-sharing manner, including: the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device use the same reference clock signal.
5. The smart community security coding system as claimed in claim 2, characterized in that: The system further comprises: The content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device.
6. The smart community security coding system as claimed in claim 5, characterized in that: A content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, including: the various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device displayed simultaneously includes the sleep state or working state of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device.
7. The smart community security coding system as claimed in claim 6, characterized in that: A content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and also includes: the content display device is a liquid crystal display screen or an LED display array.
8. The smart community security coding system as claimed in claim 7, characterized in that: The content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and also includes: the LED display array is composed of multiple LED display units arranged in a rectangular matrix pattern.
9. The smart community security coding system as claimed in claim 8, characterized in that: The content display device is respectively connected to the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and is used to simultaneously display various status information of the human body detection device, the search processing device, the numerical analysis device and the dynamic conversion device, and also includes: the structure of the multiple LED display units arranged in a rectangular matrix pattern is the same.