JPS6486686A - Motion vector detecting system - Google Patents
Motion vector detecting systemInfo
- Publication number
- JPS6486686A JPS6486686A JP62242575A JP24257587A JPS6486686A JP S6486686 A JPS6486686 A JP S6486686A JP 62242575 A JP62242575 A JP 62242575A JP 24257587 A JP24257587 A JP 24257587A JP S6486686 A JPS6486686 A JP S6486686A
- Authority
- JP
- Japan
- Prior art keywords
- decided
- motion vector
- minimum value
- amplitude
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
PURPOSE:To improve picture quality by matching with the nature of the visual sense of a person, by prohibiting the output of a motion vector detecting circuit used in an encoder and a decoder systems when the number of image elements whose image is decided as a still picture exceeds the ratio of the number of image elements decided in advance. CONSTITUTION:The minimum value out of absolute values (a-d) is selected at a minimum value selecting circuit 8, and it is amplitude-limited at an amplitude limiter 9. The amplitude comparison of the amplitude-limited minimum value of the absolute values (a-d) with a weight-added absolute value (x) is performed, and when the weight-added absolute value (x) is less than the minimum value, the image element is decided as the one with a motion vector=0, and it is introduced to an AND circuit 13 and a counter 14 to take AND by the output of a window generating circuit 12 in the center part of a screen and is counted extending over one field period. When a counted result exceeds a fixed threshold decided by a fixed threshold generator 15 by the threshold generator 15 and a comparator 16, the output of the motion vector detecting circuit 1 is prohibited. In such a way, the picture quality can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62242575A JPH0657063B2 (en) | 1987-09-29 | 1987-09-29 | Motion vector detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62242575A JPH0657063B2 (en) | 1987-09-29 | 1987-09-29 | Motion vector detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6486686A true JPS6486686A (en) | 1989-03-31 |
| JPH0657063B2 JPH0657063B2 (en) | 1994-07-27 |
Family
ID=17091106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62242575A Expired - Lifetime JPH0657063B2 (en) | 1987-09-29 | 1987-09-29 | Motion vector detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657063B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61283294A (en) * | 1985-06-10 | 1986-12-13 | Nec Corp | Compensating and encoding system for motion and its device |
| JPS623538A (en) * | 1985-06-27 | 1987-01-09 | エイ・ティ・アンド・ティ・コーポレーション | Boot strapping orthogonal polarized wave canceller with noise/blanking limiter |
| JPS6225588A (en) * | 1985-07-26 | 1987-02-03 | Sony Corp | Detector circuit for moving vector |
-
1987
- 1987-09-29 JP JP62242575A patent/JPH0657063B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61283294A (en) * | 1985-06-10 | 1986-12-13 | Nec Corp | Compensating and encoding system for motion and its device |
| JPS623538A (en) * | 1985-06-27 | 1987-01-09 | エイ・ティ・アンド・ティ・コーポレーション | Boot strapping orthogonal polarized wave canceller with noise/blanking limiter |
| JPS6225588A (en) * | 1985-07-26 | 1987-02-03 | Sony Corp | Detector circuit for moving vector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657063B2 (en) | 1994-07-27 |
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